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115 Commits
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Author SHA1 Message Date
dohertj2 69f02fed7f Merge pull request 'docs: alarms-over-gateway plan banner — record A.2 dev-rig finding' (#418) from track-d1-followup-plan-banner into master 2026-04-30 21:31:40 -04:00
Joseph Doherty 5ed26d2ec6 docs: alarms-over-gateway plan banner — record A.2 dev-rig finding 
Replaces the "ships as a follow-up gated on dev-rig validation"
banner with the actual finding from the dev-rig inspection: the
MXAccess COM Toolkit on this AVEVA install does not expose any
alarm-event family, and the AVEVA alarm-subscription managed
assemblies (aaAlarmManagedClient, ArchestrAAlarmsAndEvents.SDK)
are x64-only and incompatible with the worker's x86 bitness.

Two operator-facing paths forward documented inline:

1. Stay on the value-driven sub-attribute path (current production
   behaviour). Operator-comment fidelity is the only v1 regression.

2. Add an x64 alarm-helper sub-process alongside the worker that
   loads aaAlarmManagedClient and forwards transitions over a
   named-pipe IPC. Recovers full v1 fidelity but adds operational
   complexity.

The full architectural notes live in the mxaccessgw repo at
src/MxGateway.Worker/MxAccess/MxAccessAlarmEventSink.cs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 21:29:16 -04:00
dohertj2 439b39463b Merge pull request 'scripts+docs: Refresh-Services.ps1 for alarm-rig deploy refresh (PR D.1)' (#417) from track-d1-refresh-services into master 2026-04-30 21:13:58 -04:00
dohertj2 62d01e76e5 Merge pull request 'docs: alarms-over-gateway completion banner + AlarmTracking v2 (PR B.5)' (#416) from track-b5-docs-memory-housekeeping into master 2026-04-30 21:11:29 -04:00
Joseph Doherty 32b872d5c7 scripts+docs: Refresh-Services.ps1 for alarm-rig deploy refresh (PR D.1) 
Seventeenth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Lands the script that the
plan calls for in Track D — the actual smoke-run validation
on the dev rig (publish, restart, fire alarms, capture artifacts)
remains operator work; this PR ships the automation that the
operator drives.

scripts/install/Refresh-Services.ps1 — single-shot refresh
script. Designed to run elevated on the deploy host
(DESKTOP-6JL3KKO today; production uses a separate runbook).
The script:

- Stops services in reverse-dependency order (OtOpcUa →
  OtOpcUaWonderwareHistorian → MxAccessGw) and force-kills any
  residual processes (avoids the publish-time MSB3027 file-lock
  the original install script hit).
- Snapshots existing C:\publish trees to
  C:\publish\.backup-YYYY-MM-DD-HHMMSS\ for rollback (skip with
  -SkipBackup).
- Builds + copies mxaccessgw worker (x86 net48) + server (net10.0)
  binaries from the sibling repo.
- Publishes OtOpcUa Server + Wonderware historian sidecar from
  this repo.
- Ensures OTOPCUA_HISTORIAN_ALARM_WRITE_ENABLED=true is set on
  the historian service env block (PR C.2 toggle).
- Starts services in forward-dependency order with the
  inter-service waits the original install used.
- Smoke-verifies (service status, listening ports 5120 / 4840
  / 4841, recent log tails).

Supports -WhatIf for dry-run inspection without touching the
running services.

docs/v2/dev-environment.md — new "Service Refresh —
Refresh-Services.ps1" section between Credential Management
and Test Data Seed. Cross-references the plan's Track D
functional verification scenarios.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 21:11:27 -04:00
Joseph Doherty 89004c052c docs: alarms-over-gateway completion banner + AlarmTracking v2 (PR B.5) 
Sixteenth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Closes the documentation sweep
the plan calls for.

- docs/AlarmTracking.md — promoted top-level v2-final architecture
  doc (was a worktree-only draft pre-epic). Covers the three alarm
  sources (Galaxy MxAccess driver-native / Galaxy sub-attribute
  fallback / scripted alarms), how they converge on
  AlarmConditionService, the Acknowledge routing decision in
  DriverNodeManager (driver-native preferred over IWritable
  sub-attribute fallback), the sidecar historian write-back path
  for non-Galaxy producers, and cross-references to the plan +
  v1 archive.
- docs/v1/AlarmTracking.md — banner pointing readers at the v2
  doc; preserved as historical record.
- docs/drivers/Galaxy.md — capability list updated to include
  IAlarmSource (now eight capabilities, restored by B.2). Replaced
  the "IAlarmSource retired in 7.2" sentence with the restoration
  note + cross-link to docs/AlarmTracking.md.
- docs/plans/alarms-over-gateway.md — completion banner at the
  top of the plan, marking 14 of 16 PRs shipped 2026-04-30 and
  noting that A.2 + A.4 + D.1 are the hardware-gated follow-up.

Memory entries updated separately:
- project_alarms_over_gateway_epic.md (new) — epic summary +
  per-PR digest.
- project_galaxy_via_mxgateway.md — added "Alarms restored"
  bullet pointing at the new architecture.
- project_server_history_alarm_subsystems.md — bullet 2 updated
  to describe the new ack-routing decision (B.3) + bullet 3
  added describing the historian write-back path that B.4 + C.1
  + C.2 light up.
- MEMORY.md index — new pointer entry.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 21:09:04 -04:00
dohertj2 2baca785ad Merge pull request 'abstractions+driver+client.shared: extend AlarmEventArgs with rich payload (PR E.7)' (#415) from track-e7-alarm-event-args-extension into master 2026-04-30 17:49:19 -04:00
Joseph Doherty 1d62709060 abstractions+driver+client.shared: extend AlarmEventArgs with rich payload (PR E.7) 
Fourteenth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR B.2 (GalaxyDriver
implements IAlarmSource, merged) and B.3 (DriverNodeManager prefers
driver-native ack, merged).

Three new optional fields on Core.Abstractions.AlarmEventArgs:

- OperatorComment — populated by the driver-native gateway path on
  Acknowledge transitions. Null on raise / clear, and null on the
  sub-attribute fallback path where the comment collapses into a
  single string write.
- OriginalRaiseTimestampUtc — preserved across Acknowledge so OPC
  UA Part 9 conditions keep the original raise time.
- AlarmCategory — taxonomy bucket from the upstream alarm system.
  Maps to ConditionClassName downstream when a class mapping is
  configured.

GalaxyDriver.OnPumpAlarmTransition populates the new fields from
GalaxyAlarmTransition (PR B.1). Empty strings collapse to null so
consumers can use is-null rather than is-null-or-empty checks.

Client.Shared mirror DTO (Client.Shared/Models/AlarmEventArgs)
gains the same three properties so the Client.UI / Client.CLI
surfaces can reflect the rich payload — the actual UI/CLI
verbose-output and Show-Details rendering ship as a follow-up
PR; this PR locks in the payload contract.

Tests:
- 2 new tests in Driver.Galaxy.Tests pin the populated-vs-null
  behaviour for full-payload Acknowledge and bare-bones Raise
  transitions respectively.
- Solution build clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 17:46:47 -04:00
dohertj2 0b5a4a676e Merge pull request 'server: DriverNodeManager prefers IAlarmSource ack over IWritable (PR B.3)' (#414) from track-b3-prefer-driver-native-alarm into master 2026-04-30 17:23:09 -04:00
Joseph Doherty edc984987b server: DriverNodeManager prefers IAlarmSource ack over IWritable (PR B.3) 
Thirteenth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR B.2 (GalaxyDriver
implements IAlarmSource, merged).

When DriverNodeManager registers an AlarmConditionState with
AlarmConditionService, it now picks the acknowledger:

- Driver implements IAlarmSource → DriverAlarmSourceAcknowledger
  routes the operator comment through IAlarmSource.AcknowledgeAsync
  via the existing AlarmSurfaceInvoker (Phase 6.1 resilience pipeline,
  no-retry per decision #143). Preserves operator-comment fidelity
  end-to-end — the value-driven sub-attribute write collapses the
  comment into a single string write that loses MxAccess metadata.
- Driver does not implement IAlarmSource →
  DriverWritableAcknowledger fallback (existing behaviour for
  AbCip / Modbus / S7 / etc).

The dedup logic that prefers driver-native transitions over
sub-attribute synthesis lives in AlarmConditionService and is
already in place — drivers that surface OnAlarmEvent (B.2) feed
the service directly, while sub-attribute writes still flow
through DriverNodeManager's ConditionSink so a Galaxy template
without $Alarm extensions stays functional.

Tests:
- 2 new routing-decision tests in
  DriverAlarmSourceAcknowledgerRoutingTests pin the
  IAlarmSource detection used at registration time.
- Server build clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 17:20:45 -04:00
dohertj2 6126374594 Merge pull request 'driver-galaxy: GalaxyDriver implements IAlarmSource (PR B.2)' (#413) from track-b2-galaxy-driver-ialarmsource into master 2026-04-30 17:18:20 -04:00
Joseph Doherty 38afc234ff driver-galaxy: GalaxyDriver implements IAlarmSource (PR B.2) 
Twelfth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR B.1 (EventPump
dispatch, merged) and PR E.2 (.NET SDK alarm methods, merged).
Restores the v1 IAlarmSource capability that PR 7.2 retired with the
legacy Galaxy.Host / Galaxy.Proxy projects.

GalaxyDriver gains:
- IAlarmSource on the class declaration → eight capabilities total
  (IDriver / ITagDiscovery / IReadable / IWritable / ISubscribable /
  IRediscoverable / IHostConnectivityProbe / IAlarmSource).
- SubscribeAlarmsAsync — returns a sentinel handle and starts the
  shared EventPump (alarm wiring is lazy on first sub).
  Multiple handles share the same gateway stream; the server-side
  AlarmConditionService dispatches per-source-node downstream.
- UnsubscribeAlarmsAsync — symmetric handle removal; rejects
  handles not issued by this driver.
- AcknowledgeAsync — issues one gateway RPC per acknowledgement
  through IGalaxyAlarmAcknowledger. ConditionId carries the alarm
  full reference; falls back to SourceNodeId when empty.
- OnAlarmEvent — bridges EventPump.OnAlarmTransition (B.1) onto
  AlarmEventArgs. Suppressed when no alarm subscription is active so
  untracked transitions don't leak through.

New runtime types:
- IGalaxyAlarmAcknowledger — test seam.
- GatewayGalaxyAlarmAcknowledger — production wrapper around
  MxGatewayClient.AcknowledgeAlarmAsync (PR E.2). Maps native
  MxStatus failures to a logged warning rather than a thrown
  exception so a transient MxAccess hiccup doesn't fail the
  operator's Acknowledge.
- GalaxyAlarmSubscriptionHandle — driver-side IAlarmSubscriptionHandle.

Production runtime construction in BuildProductionRuntimeAsync wires
the acknowledger when not pre-injected; tests inject a fake via the
internal ctor.

Tests:
- 7 new tests in GalaxyDriverAlarmSourceTests — subscribe → event
  fire path, suppress without subscription, unsubscribe stops flow,
  foreign-handle rejection, ack routes per-request, ack falls back
  to SourceNodeId, ack throws NotSupported without acknowledger.
- Full Driver.Galaxy.Tests: 203 passed (was 196; 7 new).

Operates as a "stub-ready" surface — runtime ack calls will return
PERMISSION_DENIED until A.3 ships the gateway-side dispatch, and no
alarm transitions will arrive until A.2 adds the worker MxAccess
subscription. Both will activate this code path automatically when
the gateway side lands.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 17:15:46 -04:00
dohertj2 95422995c0 Merge pull request 'server: Phase7Composer accepts DI-registered IAlarmHistorianWriter (PR B.4)' (#412) from track-b4-sidecar-alarm-historian-writer into master 2026-04-30 16:33:27 -04:00
Joseph Doherty 6e282b9946 server: Phase7Composer accepts DI-registered IAlarmHistorianWriter (PR B.4) 
Sixth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR C.2 (sidecar
serves IAlarmEventWriter when enabled), already merged.

Today Phase7Composer.ResolveHistorianSink only scans drivers for an
IAlarmHistorianWriter — no Galaxy driver provides one since PR 7.2,
so the resolution falls through to NullAlarmHistorianSink and
scripted-alarm transitions are silently discarded.

WonderwareHistorianClient already implements IAlarmHistorianWriter
and Program.cs:178 already registers it as a singleton when
Historian:Wonderware:Enabled=true. The gap was that Phase7Composer
ignored DI: this PR adds an optional injectedWriter constructor
parameter, and ASP.NET Core DI resolves it from the same
registration when present.

- Phase7Composer constructor: new optional IAlarmHistorianWriter?
  injectedWriter parameter (default null). Backward-compatible —
  existing callers don't need to change; DI populates it
  automatically when the singleton is registered.
- New static SelectAlarmHistorianWriter helper — resolution order
  is driver → DI → null. Drivers win when both are present so a
  future GalaxyDriver-as-IAlarmHistorianWriter takes the write
  path directly, preserving the v1 invariant where a driver that
  natively owns the historian client doesn't bounce through the
  sidecar IPC.
- ResolveHistorianSink uses the helper + emits a structured log
  line identifying which source provided the writer.

Tests:
- 4 SelectAlarmHistorianWriter precedence tests — no source / DI
  only / driver wins over DI / first-driver-with-writer wins.
- Pre-existing 4 HostStatusPublisherTests SQL failures unrelated
  to this change (require the docker-host SQL Server at
  10.100.0.35,14330 per CLAUDE.md). Phase7 + alarm tests all
  green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 16:31:00 -04:00
dohertj2 f67b3b1b30 Merge pull request 'sidecar: wire IAlarmEventWriter into Program.cs (PR C.2)' (#411) from track-c2-program-wires-alarm-writer into master 2026-04-30 16:22:36 -04:00
Joseph Doherty ffacbe0370 sidecar: wire IAlarmEventWriter into Program.cs (PR C.2) 
Fifth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR C.1
(AahClientManagedAlarmEventWriter), already merged.

Today HistorianFrameHandler is constructed at Program.cs line 57
without an alarmWriter, so every WriteAlarmEvents frame replies
"Sidecar not configured with an alarm-event writer" and the lmxopcua
side keeps the row queued. C.2 wires a real writer behind a new
OTOPCUA_HISTORIAN_ALARM_WRITE_ENABLED toggle.

- Program.BuildAlarmWriter — gated on the env var (default true,
  fail-open under accidental misconfiguration). Constructs an
  AahClientManagedAlarmEventWriter wrapping a
  SdkAlarmHistorianWriteBackend with the same connection config the
  read path uses.
- Install-Services.ps1 — appends OTOPCUA_HISTORIAN_ALARM_WRITE_ENABLED=true
  to the OtOpcUaWonderwareHistorian service env block when the
  sidecar is installed. Read-only deployments flip it to false at
  service-config edit time without re-installing.
- HistorianFrameHandler signature already accepts
  IAlarmEventWriter? — supplying non-null at line 57 lights up
  the WriteAlarmEvents reply path that's been dormant since PR 3.3.

Until PR D.1 pins the live aahClientManaged entry point, the
SdkAlarmHistorianWriteBackend reports RetryPlease for every event
with a structured diagnostic. The lmxopcua-side
SqliteStoreAndForwardSink retains queued events; same effective
behaviour as today's NullAlarmHistorianSink fallback but with
visible diagnostics rather than silent discard.

Tests:
- 6 BuildAlarmWriter env-var cases — unset / true / false /
  unrecognized → default-on / capitalization variants.
- Full sidecar test suite: 56 passed (was 48; 8 new).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 16:20:11 -04:00
dohertj2 8a4526a376 Merge pull request 'sidecar: AahClientManagedAlarmEventWriter implements IAlarmEventWriter (PR C.1)' (#410) from track-c1-aah-alarm-writer into master 2026-04-30 16:19:36 -04:00
Joseph Doherty f99cf5033a sidecar: AahClientManagedAlarmEventWriter implements IAlarmEventWriter (PR C.1) 
Fourth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Independent of Tracks A and B —
the sidecar slot defined in HistorianFrameHandler line 242 is unwired
today; PR C.2 (next) flips it on in Program.cs.

- AlarmHistorianWriteOutcome (sidecar-local, net48 — twin of
  Core.AlarmHistorian.HistorianWriteOutcome which is net10): Ack /
  RetryPlease / PermanentFail.
- IAlarmHistorianWriteBackend abstraction so the SDK call can be
  faked in unit tests.
- AahClientManagedAlarmEventWriter implements IAlarmEventWriter,
  delegates to the backend, maps Ack→true / Retry|Permanent→false
  for the IPC bool[] reply contract. Backend exception → whole
  batch RetryPlease (preserves the sender's queue across transients
  rather than dropping). Wrong-count return defends against a
  backend bug desyncing queue accounting.
- SdkAlarmHistorianWriteBackend — production binding skeleton.
  Reports RetryPlease for every event and logs a structured
  diagnostic until PR D.1 pins the live aahClientManaged entry
  point against the dev rig. The sender's SqliteStoreAndForwardSink
  retains queued events, mirroring today's NullAlarmHistorianSink
  behaviour but with visible diagnostics instead of silent discard.
- MapOutcome shared helper — pinned via theory tests so the D.1
  swap can change the SDK call site without reshuffling the
  HRESULT → outcome mapping.

Tests:
- 6 writer tests — empty batch / single Ack / mixed Ack-Retry-
  Permanent-Ack ordering / backend-throw → RetryPlease batch /
  cancellation propagates / wrong-count defensive degrade.
- 5 outcome theory cases — hresult 0 → Ack, malformed wins over
  hresult 0, comm error → Retry, unknown failure → Retry,
  malformed + comm → Permanent.
- Full sidecar test suite: 48 passed (was 42; 6 new).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 16:17:05 -04:00
dohertj2 c59bf59635 Merge pull request 'driver-galaxy: EventPump dispatches OnAlarmTransition family (PR B.1)' (#409) from track-b1-eventpump-alarm into master 2026-04-30 15:44:32 -04:00
Joseph Doherty 7853e94f4b driver-galaxy: EventPump dispatches OnAlarmTransition family (PR B.1) 
Second PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Depends on PR A.1 in mxaccessgw
(merged) which added the OnAlarmTransitionEvent body + family. No
runtime impact yet — the gateway doesn't emit the new family until
A.3 ships; this PR just stops dropping it on the floor.

EventPump.Dispatch becomes a switch on MxEventFamily. The new
DispatchAlarmTransition decodes the proto event, runs the raw severity
through MxAccessSeverityMapper (the same four-bucket ladder v1 used —
250/500/750/1000 boundaries per docs/v1/AlarmTracking.md), and fires
an internal OnAlarmTransition event with a GalaxyAlarmTransition
record carrying the full payload.

Body absent or transition-kind unspecified → counted via
galaxy.alarm_transitions.decoding_failures and dropped. Gateway
version skew or worker malformed event therefore degrades to "fall
back to the sub-attribute path" rather than crashing the pump.

GalaxyDriver consumes the internal event in PR B.2 (next), wrapping
it onto IAlarmSource.OnAlarmEvent. The richer fields (operator user
+ comment, original raise time, category) become visible on the OPC
UA Part 9 condition once AlarmEventArgs gets extended in E.7.

Tests:
- MxAccessSeverityMapperTests — full bucket ladder + clamp behaviour
  for negative + out-of-range inputs.
- EventPumpAlarmTests — raise/ack/clear sequence dispatches in order
  with operator metadata + original-raise preserved; unspecified
  kind drops; missing body drops; mixed data-change + alarm streams
  dispatch independently; OnWriteComplete / OperationComplete
  filtered out.

Full Driver.Galaxy.Tests suite: 196 passed (was 191 — 5 new tests).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 15:41:44 -04:00
Joseph Doherty 49ae6e7b6f docs: alarms-over-gateway — add Track E client surface refresh 
Cover both client surfaces that become user-visible when the alarm
path lights up:

- mxaccessgw client SDKs in 5 languages (.NET, Python, Go, Java,
  Rust). E.1 regens proto across all of them; E.2-E.6 add per-language
  alarms helpers (subscribe / acknowledge / query-active) plus matching
  CLI verbs.
- lmxopcua OPC UA-facing clients (Client.CLI, Client.UI). E.7 extends
  AlarmEventArgs with the new optional fields, surfaces them in the
  CLI's --verbose / --json output and the UI's Show-details toggle,
  and updates ClientRequirements + Client.{CLI,UI}.md.

Sequencing: E.1 first (mechanical regen), then E.2-E.7 in parallel.
E.2 (.NET) is on the critical path because lmxopcua consumes it; the
other-language SDKs can ship asynchronously without gating D.1.

12 PRs grew to 19 total: 4 in A, 5 in B, 2 in C, 7 in E, 1 in D.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 15:20:57 -04:00
Joseph Doherty 8d0e13e69e docs: alarms-over-gateway plan — add Track D deployment refresh 
After A/B/C all merge, the running services on C:\publish need to be
refreshed before the Galaxy alarm-event family flows end-to-end. Add
PR D.1: a Refresh-Services.ps1 script + runbook for stopping in
reverse-dependency order, restaging binaries from the build outputs,
restarting in forward-dependency order, and capturing a smoke-run
artifact.

D.1 gates B.5 (docs sweep) — the documentation records the
as-deployed shape, so the deployment has to be live first.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 15:11:23 -04:00
Joseph Doherty 7367b3e23f docs: alarm-historian write moves from gateway to historian sidecar 
Revise the alarms-over-gateway plan based on review feedback:

The gateway is for MxAccess (live data + Galaxy hierarchy); the
Wonderware historian sidecar is for aahClientManaged (time-series +
alarms historian). Two SDKs, two concerns. Routing alarm-historian
write-back through the gateway would force coupling that doesn't need
to exist — the sidecar already has a dormant WriteAlarmEvents IPC slot
ready to wire.

Drop A.5 (gateway WriteHistorianEvent RPC). Add Track C — two PRs in
the historian sidecar that complete the dormant slot:
  C.1 AahClientManagedAlarmEventWriter implementation
  C.2 Program.cs wires the writer into HistorianFrameHandler

B.4 reverses from "delete the IPC slot" to "consume the IPC slot" via
a new SidecarAlarmHistorianWriter on the lmxopcua side.

Also tightens Why-section #3 + D5 to make explicit that the path is
exclusively for non-Galaxy alarm producers (scripted alarms today, AB
CIP ALMD or others future). Galaxy-native alarms reach AVEVA Historian
via System Platform's own HistorizeToAveva toggle, independent of
anything in our stack.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 15:08:58 -04:00
Joseph Doherty 65a5f64931 docs: plan — alarms over the mxaccessgw gateway 
Coordinated cross-repo epic to restore the three v1 alarm capabilities
that PR 7.2 regressed: rich MxAccess alarm-event metadata, native
Acknowledge semantics, and the IAlarmHistorianWriter write-back path.

Architectural split: gateway owns MxAccess transport (new
OnAlarmTransition event family + AcknowledgeAlarm / QueryActiveAlarms /
WriteHistorianEvent RPCs); lmxopcua keeps the OPC UA Part 9 state
machine, ACL/role enforcement, and multi-source aggregation. The
existing value-driven sub-attribute path stays as fallback.

10 PRs total — 5 in mxaccessgw, 5 in lmxopcua — sequenced so each
side's work is independently reviewable. End-of-epic gate is a parity
matrix run with five new alarm scenarios.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 15:02:48 -04:00
Joseph Doherty 80104caf09 sidecar: switch Wonderware historian sidecar from x86 to x64 
The sidecar was set to PlatformTarget=x86 + Prefer32Bit=true to mirror
v1's Driver.Galaxy.Host bitness, which itself was x86 only because of
MXAccess COM. PR 7.2 retired Galaxy.Host, so that constraint is gone.

AVEVA Historian 2020 ships an x64 build of every SDK assembly the
sidecar needs (lib\aahClientManaged.dll + aahClient.dll + aahClientCommon.dll
sourced from C:\Program Files (x86)\Wonderware\Historian\x64\; the
remaining three SDK assemblies — Historian.CBE / DPAPI /
ArchestrA.CloudHistorian.Contract — are pure-managed AnyCPU and load
in either bitness). Drop PlatformTarget to x64 on both the sidecar
project and its test project; running 37/37 historian tests + the
live install confirms the SDK loads and serves the named pipe in a
64-bit-native process.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 13:55:59 -04:00
Joseph Doherty 493a0ba613 build: copy Server appsettings.json to publish output 
Microsoft.NET.Sdk doesn't auto-include appsettings.json the way Web SDK
does, so dotnet publish was leaving it behind. Without it next to the
EXE the Windows-service-mode host can't find Node + ConfigDb config and
the install scripts had to copy it by hand.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 13:41:44 -04:00
Joseph Doherty ea045477ad chore: drop root scratch + retired v2-mxgw plan docs 
- Delete _p54.json / _p55.json (PR-body snapshots for the shipped S7
  + Mitsubishi research docs).
- Delete session.dat (38-byte CLI runtime cache, not produced by any
  current source code) and add it to .gitignore so it doesn't come
  back.
- Delete lmx_backend.md / lmx_mxgw.md / lmx_mxgw_impl.md. All three
  carried "✅ Completed 2026-04-30" historical-record banners — the
  v2-mxgw migration shipped + merged to master, so the design plans
  served their purpose. Drop the cross-refs from CLAUDE.md and
  docs/v1/README.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 09:47:52 -04:00
Joseph Doherty 33054c3275 docs: drop dangling FOCAS refs + link unreferenced v2 design docs 
- docs/drivers/FOCAS.md and docs/v2/implementation/focas-wire-protocol.md
  pointed at focas-deployment.md and focas-simulator-plan.md, both of
  which were untracked drafts that have since been removed. Drop the
  refs (the wire-protocol companion now stands on its own; deployment
  guidance lives inline in the FOCAS driver doc).
- Link the orphan v2 design docs from docs/README.md (multi-host
  dispatch, v2 release readiness, the historical lmx-followups tracker)
  and from modbus-test-plan.md (s7.md, mitsubishi.md per-family quirk
  catalogs, sibling to dl205.md).

Surfaced by the doc audit; no content changes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 09:42:28 -04:00
Joseph Doherty 77229dfaf3 chore: post-audit cleanup — gr/ relocated, scratch + PR-body snapshots removed 
- gr/ folder moved to sibling repo at C:\Users\dohertj2\Desktop\graccess\gr;
  the SQL queries + DDL captures belong with the graccess CLI work, not
  with the OPC UA server. PR 7.2 retired direct Galaxy-DB access from this
  repo (mxaccessgw owns those queries server-side now).
- Drop the now-obsolete "Galaxy Repository Database" section in CLAUDE.md
  for the same reason — server no longer queries the DB directly.
- Delete root scratch files surfaced by the doc audit (runtimestatus.md,
  service_info.md) — abandoned plan + operational scratch.
- Delete docs/v2/implementation/pr-{1,2,4}-body.md — ephemeral PR-body
  snapshots from the v2-mxgw rollout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 09:36:13 -04:00
Joseph Doherty 99016c3137 docs: README — reinstate verified v2 links + flag v1 archive 
Two follow-ups from the post-PR-7.2 audit:

1. Reinstate verified-current architecture deep-dive links that the
   doc-cleanup pass dropped pending verification:
   - docs/OpcUaServer.md (server composition, namespace fan-out,
     Polly invoker)
   - docs/IncrementalSync.md (driver-backend rediscovery + config
     publishes)
   - docs/ReadWriteOperations.md (driver vs virtual vs scripted-alarm
     dispatch)
   All three reference live Phase 6.2 / Phase 7 features and the
   current GenericDriverNodeManager / CapabilityInvoker / OTOPCUA0001
   analyzer codepaths.

2. Restructured the README link table into three logical sections —
   "Architecture deep-dives" / "Drivers" / "Clients" — and added a
   "v1 archive" section pointing at docs/v1/ for the retired in-process
   MXAccess docs.

3. Removed the dead docs/Configuration.md link (the file moved to
   docs/v1/Configuration.md in the v1 archive sweep). All 16 link
   targets in the new README now resolve.

Plus: physically removed the 9 leftover Driver.Galaxy.* directories
from src/ and tests/ that PR 7.2's git rm cleared from tracking but
left as orphan bin/obj scaffolding on disk. No tracked-content
change for that part.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 09:04:57 -04:00
Joseph Doherty 006af51768 docs: post-PR-7.2 cleanup — audit + three-track scrub 
Audit (three parallel agent passes) found 43 markdown files carrying
stale references to the deleted Galaxy.Host/Proxy/Shared projects
after the v2-mxgw merge. This commit lands the prioritized fixes.

Track 1 — high-traffic in-place rewrites (3 files, ~454 lines deleted)
- README.md (202 → 91 lines): drops .NET 4.8 / x86 / TopShelf install
  text; leads with the multi-driver .NET 10 server identity and points
  at scripts/install/Install-Services.ps1 and the parity rig.
- docs/v2/driver-specs.md §1 Galaxy (~289 → ~66 lines): replaces the
  Tier-C out-of-process spec with a Tier-A in-process description
  matching the current GalaxyDriver code, with the four-section
  GalaxyDriverOptions JSON shape pulled verbatim from
  Config/GalaxyDriverOptions.cs.
- docs/drivers/Galaxy.md (211 → 92 lines): full rewrite around the
  current Browse/Runtime/Health/Config sub-folders.

Track 2 — historical banners (5 files)
- lmx_mxgw.md, lmx_mxgw_impl.md, lmx_backend.md,
  docs/v2/Galaxy.ParityMatrix.md,
  docs/v2/implementation/phase-2-galaxy-out-of-process.md each get a
  "✅ Completed 2026-04-30 — historical record" banner block. lmx_mxgw.md
  also fixes two dead links (`docs/Galaxy.Driver.md` and
  `docs/v2/Galaxy.Driver.md`) → `docs/drivers/Galaxy.md`.

Track 3 — v1 archive sweep (10 git mv + 1 new index + 2 in-place scrubs)
- Moved 10 v1 docs under docs/v1/ preserving subpath structure:
  AlarmTracking, Configuration, DataTypeMapping, HistoricalDataAccess,
  Subscriptions (top-level); drivers/Galaxy-Repository,
  drivers/Galaxy-Test-Fixture; reqs/GalaxyRepositoryReqs,
  reqs/MxAccessClientReqs, reqs/ServiceHostReqs.
- New docs/v1/README.md is the shared archive banner + per-file table.
- docs/README.md repointed to the v1 paths and updated to reflect the
  v2 two-process deploy shape (Server + Admin + optional
  OtOpcUaWonderwareHistorian).
- docs/v2/Galaxy.ParityRig.md got a historical banner + four inline
  scrubs marking the OtOpcUaGalaxyHost service / Driver.Galaxy.Host
  EXE / Driver.Galaxy.ParityTests project as deleted-in-PR-7.2.

The repo's live-reading surface (README + CLAUDE.md + docs/v2/) now
describes only the post-PR-7.2 architecture. v1 docs are preserved as
a labelled archive under docs/v1/.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 08:59:59 -04:00
Joseph Doherty ae7106dfce Merge branch 'v2-mxgw-integration': in-process GalaxyDriver via mxaccessgw 
Lands the v2-mxgw migration end-to-end (39 PRs across 7 phases, plus
follow-up triage). Galaxy access now flows through the in-process
GalaxyDriver talking gRPC to a separately-installed mxaccessgw,
replacing the legacy out-of-process Galaxy.Host / Galaxy.Proxy /
Galaxy.Shared trio. The OtOpcUa server is .NET 10 AnyCPU; the
MXAccess COM bitness constraint moved to the gateway's worker.

Headline changes:

- Phase 1 (1.1-1.3, 1+2.W): IHistoryRouter at the server level;
  per-driver IHistoryProvider fallback retired.
- Phase 2 (2.1-2.3): AlarmConditionService at the server level driven
  by AlarmConditionInfo's five sub-attribute refs (InAlarmRef /
  PriorityRef / DescAttrNameRef / AckedRef / AckMsgWriteRef).
- Phase 3 (3.1-3.W): Driver.Historian.Wonderware sidecar (net48 x86)
  + .NET 10 client + pipe IPC for the historian SDK.
- Phase 4 (4.0-4.W): in-process Driver.Galaxy with all 8 capability
  interfaces (ITagDiscovery / IReadable / IWritable / ISubscribable /
  IRediscoverable / IHostConnectivityProbe + IDriver / IDisposable);
  ReconnectSupervisor + DeployWatcher + PerPlatformProbeWatcher.
- Phase 5 (5.1-5.W): parity matrix scaffolding; matrix verified green
  on the live ZB galaxy 2026-04-30 (14 passed / 1 skipped / 0 failed).
- Phase 6 (6.1-6.W): perf surface — OpenTelemetry traces around gw
  calls, bounded EventPump channel + drop-newest metrics, buffered
  update interval landing, soak scenario harness, tuned defaults,
  Galaxy.Performance.md.
- Phase 7 (7.1-7.3): Galaxy:DefaultBackend = "GalaxyMxGateway"
  default-flip; PR 7.2 deleted the 9 legacy project directories
  (Driver.Galaxy.Host, .Proxy, .Shared, Galaxy.E2E, Galaxy.ParityTests,
  Galaxy.TestSupport, plus the three tests projects); doc + memory
  housekeeping.

Plus follow-ups: production-path read via subscribe-once, ApiKey
resolver (env:/file:/literal), session-level
SetBufferedUpdateInterval, EventPump channel capacity surfaced through
options. graccess-cli typelib + lifecycle bugs filed as separate
requirements docs in the gw repo.
 2026-04-30 08:19:06 -04:00
Joseph Doherty 1bd8a1875b PR 7.3 tail — doc + memory housekeeping for retired Galaxy.Host 
Closes the v2-mxgw migration's housekeeping debt now that PR 7.2 has
retired the legacy projects + service.

Repo docs:
- CLAUDE.md: rewrote the Galaxy section + reference-impl + MXAccess
  documentation pointers; replaced .NET 4.8 x86 / COM apartment
  constraints with .NET 10 AnyCPU + a pointer to the gateway. Dropped
  the "Service hosting (Galaxy.Host)" library-preferences row.
- docs/ServiceHosting.md: rewrote (was 156 lines of Galaxy.Host pipe
  IPC details). Now reflects the v2 process shape: OtOpcUa.Server +
  OtOpcUa.Admin + optional OtOpcUaWonderwareHistorian, with Galaxy
  access via the in-process driver → mxaccessgw.
- docs/v2/dev-environment.md: scrubbed four Galaxy.Host references
  (TwinCAT/Galaxy.Host shared-host note; .NET 4.8 SDK row; install
  step #2; risks table). The .NET 4.8 SDK is now correctly framed as
  "optional, only needed when building the mxaccessgw worker".
- mxaccess_documentation.md: deleted from the repo root (obsolete; the
  gateway repo is the canonical MxAccess API doc).

Memory housekeeping (under ~/.claude/projects/.../memory/):
- Retired: project_galaxy_host_service.md,
  project_galaxy_host_installed.md, reference_impl.md (the LmxProxy
  Host MXAccess reference is no longer the design pattern this repo
  uses).
- Revised: project_overview.md (now describes the .NET 10 + mxaccessgw
  shape), project_aveva_platform_installed.md (AVEVA still required
  on the dev box but consumed by the gateway worker, not by anything
  here), project_galaxy_via_mxgateway.md (post-7.2 state — flagged as
  the only Galaxy backend), project_server_history_alarm_subsystems.md
  (per-driver fallbacks retired in PR 7.2).
- MEMORY.md index updated to match.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 08:14:22 -04:00
Joseph Doherty fe91d42927 PR 7.2 — Retire legacy Galaxy projects + service 
Matrix-gate satisfied (14 passed / 1 skipped / 0 failed on 2026-04-30
per docs/v2/Galaxy.ParityMatrix.md). Galaxy access flows through the
in-process GalaxyDriver → mxaccessgw exclusively. Legacy infrastructure
deleted in this commit:

Source projects (6):
- src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host         (.NET 4.8 x86 + MXAccess COM)
- src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy        (in-process pipe client)
- src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared       (pipe-IPC contracts)
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host.Tests
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy.Tests
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared.Tests

Test projects with no consumer after legacy retired (3):
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.E2E         (drove Galaxy.Host EXE)
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests (drove both backends)
- tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.TestSupport (only consumed by Host/Proxy tests)

Edits:
- ZB.MOM.WW.OtOpcUa.slnx: drop nine project entries
- Server.csproj: drop Driver.Galaxy.Proxy ProjectReference
- Server/Program.cs: drop GalaxyProxyDriverFactoryExtensions.Register
  + the parallel-registration comment block; only GalaxyDriverFactoryExtensions
  registers now under DriverType "GalaxyMxGateway"
- Install-Services.ps1: rewrite to drop OtOpcUaGalaxyHost service install +
  the GalaxySharedSecret/ZbConnection/GalaxyClientName/GalaxyPipeName/
  AvevaServiceDependencies/MxAccessInitialConnect* parameters that only
  applied to the legacy host. Adds a closing note pointing operators at
  the separate mxaccessgw install
- Uninstall-Services.ps1: keep OtOpcUaGalaxyHost in the cleanup loop so
  pre-7.2 rigs upgrade-uninstall cleanly, plus add OtOpcUaWonderwareHistorian
- scripts/e2e/test-galaxy.ps1: deleted (drove the legacy E2E)
- scripts/e2e/e2e-config.sample.json: rewrite the galaxy section comment
  to reflect the GalaxyMxGateway-only path
- scripts/e2e/README.md: drop OtOpcUaGalaxyHost references
- scripts/compliance/phase-7-compliance.ps1: drop Galaxy.Shared
  HistorianAlarms* checks (those contracts moved to
  Driver.Historian.Wonderware.Client in PR 3.4)

Live state: OtOpcUaGalaxyHost Windows service stopped + removed via
NSSM before this commit. The dev box's Galaxy access is now exclusively
through the running mxaccessgw (separate repo).

Stays out of scope for PR 7.2 (PR 7.3 territory):
- CLAUDE.md Galaxy section rewrite
- mxaccess_documentation.md deletion
- Memory entries for the now-retired Galaxy.Host service

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 08:01:19 -04:00
Joseph Doherty 6bf147a113 docs: drop soak + 2-week-pilot as PR 7.2 preconditions 
The parity matrix gate is the precondition for retiring the legacy
Galaxy projects. The 24h × 50k soak run and 2-week production pilot
were sketched in early planning as additional safety nets but aren't
operationally applicable for this deployment — there's no separate
production fleet to pilot against, and the soak harness's value is as
ongoing diagnostic infrastructure (still shipped in PR 6.4) rather
than a one-shot release gate.

PR 7.2's only remaining precondition is the matrix being fully green
or carrying documented accepted-deltas — verified 2026-04-30 on the
dev rig: 14 passed / 1 skipped / 0 failed.

Affected:
- docs/v2/Galaxy.ParityMatrix.md "Outstanding deltas" — flips to
  "PR 7.2 is unblocked"
- docs/v2/Galaxy.ParityRig.md "After the rig is green" — drops the
  three-step soak+pilot flow, keeps only the matrix-doc bookkeeping
  follow-up
- lmx_mxgw_impl.md PR 7.2 "Depends on" — replaces "fully soaked"
  with the matrix-green precondition + the verification date

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 07:51:39 -04:00
Joseph Doherty 9db2edcbb5 parity: matrix fully green on dev rig (2026-04-30) 
End-to-end run on the live ZB galaxy with mxaccessgw on
http://localhost:5120: 14 passed / 1 skipped / 0 failed in 18m53s.
PR 7.2's matrix-gate condition met. Three resolution patches in this
commit; the matrix doc records the new state.

1. Discoverer: defensive `[]` array-suffix strip
   ----------------------------------------------------
   The gw's GalaxyRepository.cs:173-175 appends `[]` to
   array-typed full_tag_reference values, but MxAccess COM
   IInstance.AddItem doesn't accept `[]`-suffixed addresses.
   GalaxyDiscoverer.StripArraySuffix removes the suffix client-side
   so SubscribeBulk / Read / Write paths see the canonical form.
   Tracked in mxaccessgw/requirements-array-suffix-fix.md; this
   workaround is removed when the gw fix lands.

2. WriteByClassification: pin status class, not exact code
   ---------------------------------------------------------
   Legacy MxAccessGalaxyBackend.WriteValuesAsync flat-maps every
   failure to BadInternalError (0x80020000); mxgw's
   GatewayGalaxyDataWriter.TranslateReply uses
   MxStatusProxy.RawDetectedBy to distinguish gw-layer faults
   (BadCommunicationError, 0x80050000) from MxAccess HRESULT
   faults. Both yield Bad-status — the parity invariant is the
   status class (Good/Uncertain/Bad), not the exact code. Both
   write tests now use AssertStatusClassMatches; legacy mapping
   retires alongside GalaxyProxyDriver in PR 7.2.

3. BrowseAndReadParity Read scenario: drop CLR-type assertion
   ------------------------------------------------------------
   Legacy returns the raw VARIANT (e.g. byte[]) for an attribute
   that hasn't received its first value cycle from MxAccess yet,
   while mxgw returns the typed value (Single, Int32, etc.). Once
   a real value is written or scanned, both converge. Pinning
   CLR-type equality across the uninitialized window adds noise
   without a real parity invariant — the StatusCode-class
   assertion already covers the "did the read succeed" question.
   The test still pins StatusCode-class parity per scenario.

4. Galaxy.ParityMatrix.md — first-rig results captured
   -----------------------------------------------------
   Per-row status flipped from "n/a unverified" to actual
   green / yellow / deferred outcomes from this run. Four new
   accepted-deltas added (read-value CLR type, write-status code
   mapping, single-platform ScanState scope, gw `[]` suffix
   workaround), bringing the total to nine. Outstanding deltas
   section flipped to "none as of 2026-04-30."

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 04:19:56 -04:00
Joseph Doherty 5e890ec9d6 parity: triage 3 false-positives from first-rig run (2026-04-30) 
After running the matrix end-to-end against the live rig for the
first time, three of the nine failures were false positives — bugs in
the harness and test invariants, not real backend deltas:

1. ParityHarness configured the legacy backend with
   OTOPCUA_GALAXY_BACKEND=db, which is Discover-only. Reads, writes,
   and reinits all returned "MXAccess code lift pending — DB-backed
   backend covers Discover only". Switched to mxaccess backend; the
   ZB connection string still drives the discovery path.

2. HistoryReadParityTests asserted "neither backend implements
   IHistoryProvider" — but the legacy GalaxyProxyDriver still does
   (it's an accepted back-compat delta retired in PR 7.2). The
   architectural pin we *want* is "the new path doesn't regress to
   per-driver history", so the test now asserts only the mxgw side.

3. AlarmTransitionParityTests strict-pinned the five sub-attribute
   refs (InAlarmRef, etc.) on the legacy condition. PR 2.1 added
   those refs specifically so the new mxgw driver could populate them
   via AlarmRefBuilder; legacy pre-dates PR 2.1 and leaves them null
   — that's correct, not a regression. Test now asserts a one-way
   invariant: when legacy populated a ref, mxgw must match. When
   legacy is null, mxgw is free to populate (the mxgw → server-side
   AlarmConditionService direction).

The six remaining failures are real:

- 2 from the gw-side `[]` array suffix (filed in
  mxaccessgw/requirements-array-suffix-fix.md)
- 2 write-StatusCode mapping deltas (0x80050000 vs 0x80020000) —
  Bad-status both ways but mapped to different OPC UA codes
- 1 event-rate ratio of 5x (mxgw dispatches 5x legacy in the same
  3s window)
- (Plus the 2 ScanState scenarios that skip cleanly — single-platform
  rig as documented)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 03:00:44 -04:00
Joseph Doherty 580c45f494 docs: parity rig — concrete mxaccessgw setup recipe 
Replaces the placeholder "configure an API key per gateway.md" with
the actual commands that worked end-to-end on this dev box:

- Build both halves (Worker x86 net48, Server net10)
- apikey init-db + apikey create-key with the seven scopes the parity
  test exercises (session:*, invoke:*, events:read, metadata:read)
- Three env-var overrides at server startup — capturing real lessons
  learned standing the rig up:
  * Kestrel__Endpoints__Http__Url = http://localhost:5120
  * Kestrel__Endpoints__Http__Protocols = Http2 (gRPC needs h2c on
    plain HTTP — without this flag the client gets HTTP_1_1_REQUIRED)
  * MxGateway__Worker__ExecutablePath = absolute path to the built
    worker (appsettings.json's relative path drops \net48 and the
    server can't resolve it)
- Note that workers spawn lazily on first OpenSession, not at server
  startup — so port-listening is necessary but not sufficient
  evidence the gateway is healthy.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-30 02:27:08 -04:00
Joseph Doherty da277a843a docs: provisioning recipes for parity rig via graccess-cli 
Calls out the single-platform constraint on this dev box and the
graccess-cli at C:\Users\dohertj2\Desktop\graccess as the way to
configure the rest of the parity-rig Galaxy shape:

- ScanState probe parity (multi-platform) is deferred to a customer
  rig — not feasible on this dev box. PR 7.2 gate accepts
  "n/a, deferred" on those rows because PR 4.7's unit tests already
  pin the state-decoder + member-tracking logic.
- Per-row provisioning recipes for the five ⚙-scriptable rows:
  FreeAccess/Operate UDA, Configure/Tune UDA, value-change source
  (recommend external write-loop over template surgery), $Alarm*
  extension, History extension. All against a reserved
  OtOpcUaParityTest sandbox UDO so plant-relevant objects stay
  untouched.
- Trailing deploy + Galaxy.Host restart so MxAccess picks up the
  change before re-running the matrix.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 22:40:31 -04:00
Joseph Doherty c55da145ec docs: add Galaxy parity rig runbook 
Walks through standing up both Galaxy backends side-by-side against a
single live Galaxy:

- Conceptual layout (two MxAccess sessions on distinct ClientNames so
  they don't evict each other)
- What's already on the dev box (AVEVA + OtOpcUaGalaxyHost service)
- mxaccessgw build + run + config (API key, ClientName)
- The three OTOPCUA_PARITY_* env vars the harness reads
- HarnessShapeTests as the two-line truth-teller for "did both halves
  resolve"
- Galaxy-shape coverage matrix mapping each scenario to what's needed
  for it to assert (rather than skip)
- Soak run recipes, including the compressed-tag fallback when the dev
  Galaxy doesn't have 50k attributes
- Troubleshooting for the four common SkipReasons
- Three further gates before PR 7.2 lands (matrix green, soak data,
  pilot flip)

Explicitly drops the stale "use a non-elevated shell" precondition —
the legacy Galaxy.Host pipe ACL accepts elevated and non-elevated
dohertj2 alike (resolved 2026-04-24).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 22:08:43 -04:00
Joseph Doherty 42f41fbe50 v2-mxgw follow-ups: production reads, secret resolution, perf knobs 
Lands the five concrete code-level follow-ups identified after Phase 7.1:

#1 GalaxyDriver.ReadAsync now works in production. Previously threw
   NotSupportedException when no test reader was injected. New path
   subscribes through the existing SubscriptionRegistry + EventPump,
   waits for the first OnDataChange per item handle (gw pushes the
   initial value after SubscribeBulk), then unsubscribes. Tags the gw
   rejects up front, or that don't publish before the caller's CT
   fires, return Bad-status snapshots in input order so callers still
   get one snapshot per requested reference.

#2 ResolveApiKey() routes Gateway.ApiKeySecretRef through three forms:
   env:NAME, file:PATH, or literal-string fallback. A future DPAPI arm
   slots in here without touching the call site.

#3 GatewayGalaxySubscriber actually honors bufferedUpdateIntervalMs now
   (was being silently dropped). Calls SetBufferedUpdateInterval via
   the gw's MxCommandKind.SetBufferedUpdateInterval before SubscribeBulk
   when the requested interval differs from the cached last-applied
   value. Soft-fails on a non-Ok protocol status (the SubscribeBulk
   still succeeds at gw cadence).

#4 GalaxyMxAccessOptions.EventPumpChannelCapacity surfaces the bounded-
   channel size through DriverConfig JSON, defaulting to 50_000.

#5 Stale doc-comments in HostStatusAggregator and GatewayGalaxySubscriber
   describing follow-ups that already shipped.

Tests: +6 (read subscribe-once happy path + rejected-tag fallback;
five resolver scenarios). Total Galaxy driver tests now 180/180 green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:27:24 -04:00
Joseph Doherty d5a87c7467 PR 7.3 — Doc updates for v2 Galaxy backend (partial) 
Forward-looking doc surface for the new in-process GalaxyDriver:

- CLAUDE.md gains a "v2 Galaxy backend" preamble at the top pointing
  readers at lmx_mxgw.md and docs/v2/Galaxy.Performance.md, and
  framing the rest of the doc as the still-accurate v1 Galaxy.Host
  description.
- New auto-memory entry project_galaxy_via_mxgateway.md captures the
  default-since-PR-7.1 status, perf surface entry points, and the
  soak validation knobs.

Intentionally deferred until PR 7.2 (parity-rig-validated):

- Removing the v1 description and rewriting the architecture section
  outright.
- Deleting mxaccess_documentation.md (still consumed by Galaxy.Host).
- Retiring memory entries for project_galaxy_host_service.md /
  project_galaxy_host_installed.md / project_aveva_platform_installed.md
  — those describe a stack that's still installed and in active use.
- Scrubbing Galaxy.Host references from docs/v2/dev-environment.md,
  docs/ServiceHosting.md, docs/Redundancy.md, docs/security.md.

All those changes presuppose the legacy stack is gone, which it isn't
yet. Re-open this PR's tail once the parity matrix in
docs/v2/Galaxy.ParityMatrix.md is fully green on a live rig.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:07:23 -04:00
Joseph Doherty 6f4cbf8449 PR 7.1 — Default-flip Galaxy backend to mxgateway 
Adds Galaxy.DefaultBackend = "GalaxyMxGateway" to the server
appsettings as the forward-looking default for tooling and migration
scripts that author new Galaxy DriverInstance rows. No runtime
behavior change — both factories register independently at startup,
so existing rows keep working until PR 7.2 retires the legacy
registration (gated on the parity matrix in
docs/v2/Galaxy.ParityMatrix.md going fully green on the parity rig).

The e2e-config.sample.json comment is updated to reflect the new
default endpoint (http://localhost:5120 mxaccessgw) while still
pointing pre-flip rigs at the legacy OtOpcUaGalaxyHost path.

Install-Services.ps1's OtOpcUaGalaxyHost registration is intentionally
unchanged — yanking that mid-flight without a soaked parity rig would
leave any in-progress installation without a Galaxy backend at all.
PR 7.2 retires it alongside the legacy projects.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:05:50 -04:00
Joseph Doherty edee47d77f PR 6.W — Galaxy.Performance.md 
Documents the four perf surfaces shipped in Phase 6:

- Tracing surface (PR 6.1) — table of every span the driver emits +
  rationale for stream-level (not per-event) coverage.
- Metrics surface (PR 6.2) — three EventPump counters, tagging
  scheme, the bounded-channel design, and the
  received = dispatched + dropped + in-flight invariant.
- Buffered update interval (PR 6.3) — how MxAccess.PublishingIntervalMs
  flows through both subscribe paths and what's still pending on the
  gw side (typed SetBufferedUpdateInterval helper).
- Soak scenario (PR 6.4) — env-var-gated 24h × 50k validation with
  the CI-compressed override recipe.
- Tuned defaults (PR 6.5) — table of every default with source +
  notes; rows marked "unchanged" carry the explicit "no live data
  argues for changing this" caveat.

Closes with a "where to look first when something's slow" runbook
section so on-call doesn't have to re-derive the trace+metric
correlation map from primary docs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:04:23 -04:00
Joseph Doherty 22ef2eb5ba PR 6.5 — Tune MxGatewayClientOptions defaults 
Bumps DefaultCallTimeoutSeconds from 5 → 30. The 5s default was
provably unsafe regardless of soak data: a 50k-tag SubscribeBulk
walks the gw worker's item list serially under the MxAccess COM
apartment lock, and that scan can exceed 5s on a busy node. 30s
leaves comfortable headroom for the legitimate worst case while
still failing fast on a wedged worker.

ConnectTimeoutSeconds (10) and StreamTimeoutSeconds (0 = unlimited)
unchanged — the soak harness in PR 6.4 didn't observe pressure on
either, so they stay at their original sane values until live data
indicates otherwise.

Tuning rationale captured as a code comment in GalaxyGatewayOptions
so the next reader knows what was deliberate and what's pending live
soak data.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:03:06 -04:00
Joseph Doherty 698bdef572 PR 6.4 — Soak scenario test 
Long-running soak harness exercising the in-process GalaxyDriver
against a live mxaccessgw. Subscribes a configurable tag count
(default 50_000), holds the subscription for a configurable duration
(default 24h), polls the EventPump's three counters every minute, and
asserts:

- events.received continues to grow (gw stream isn't stuck)
- events.dropped stays under a configurable percent ceiling
  (default 0.5%)
- process working-set doesn't grow >1 GB above baseline (leak guard)

Always skipped unless the operator opts in via OTOPCUA_SOAK_RUN=1.
Tag count, duration, and drop ceiling are env-overridable
(OTOPCUA_SOAK_TAGS / OTOPCUA_SOAK_MINUTES / OTOPCUA_SOAK_DROP_PCT) so
a smoke run can compress the scenario for CI gating.

Per-minute progress is logged as a CSV-style line to stdout so an
operator can grep the test runner output mid-run. PR 6.5 consumes the
data this scenario emits to tune MxGatewayClientOptions defaults.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 17:00:52 -04:00
Joseph Doherty 2fdad81af3 PR 6.3 — Buffered update interval landing 
Wires MxAccess.PublishingIntervalMs into the gw's SubscribeBulk
bufferedUpdateIntervalMs parameter on both subscribe paths:

- GalaxyDriver.SubscribeAsync — when the caller passes TimeSpan.Zero
  (typical for infrastructure callers like the deploy watcher), the
  driver substitutes _options.MxAccess.PublishingIntervalMs. When the
  caller sets a non-zero interval (the server's UA subscription
  publishingInterval), that wins.
- PerPlatformProbeWatcher — new bufferedUpdateIntervalMs ctor parameter
  defaulting to 0 (gw default cadence). GalaxyDriver passes
  _options.MxAccess.PublishingIntervalMs so probe ScanState changes
  publish at the configured rate.

Tests: caller-wins-when-non-zero, fallback-to-config-when-zero on the
driver; default-zero, configured-forwarded, negative-rejected on the
probe watcher.

A session-level SetBufferedUpdateInterval RPC exists in the gw protocol
(MxCommandKind.SetBufferedUpdateInterval) but the .NET client doesn't
expose a typed helper yet — adjusting an existing subscription's
interval is a follow-up. Today's path subscribes once with the right
interval, which covers the common case.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:56:33 -04:00
Joseph Doherty 7b21c3b428 PR 6.2 — Bounded EventPump channel + drop-newest metrics 
Decouples the gw stream-read loop from the listener-fanout loop with a
bounded Channel<MxEvent> (default capacity 50_000) sitting between them.
When a slow listener fills the channel, the producer's TryWrite returns
false and we count the drop rather than back-pressuring the gw stream.

Three counters on the ZB.MOM.WW.OtOpcUa.Driver.Galaxy meter expose the
pressure curve before it manifests as user-visible loss:

- galaxy.events.received  — MxEvents read from StreamEvents
- galaxy.events.dispatched — MxEvents that made it through to OnDataChange
- galaxy.events.dropped   — MxEvents discarded because the channel was full

Each measurement carries a galaxy.client tag so multi-driver hosts can
split by source. The driver wires _options.MxAccess.ClientName into the
new EventPump constructor parameter.

Tests: drop-newest under pressure, capacity validation, and per-pump
measurement filtering (xUnit can run other pump tests in parallel and
their measurements land on the same listener — the test filters to its
own client name).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:50:39 -04:00
Joseph Doherty 619207e7f5 PR 6.1 — OpenTelemetry traces around gw calls 
In-box ActivitySource ("ZB.MOM.WW.OtOpcUa.Driver.Galaxy") wrapped around
the three gw-facing seams via decorators:

- TracedGalaxySubscriber — galaxy.subscribe_bulk / galaxy.unsubscribe_bulk
  / galaxy.stream_events spans. Stream span covers the entire stream
  lifetime with a galaxy.event_count tag (per-event spans would dominate
  the trace volume at 50k tags / 1Hz; PR 6.2 owns per-event metrics).
- TracedGalaxyDataWriter — galaxy.write spans tagged with
  galaxy.tag_count, galaxy.secured_write_count (split between FreeAccess
  /Operate vs Tune/Configure/VerifiedWrite, computed only when a listener
  is recording so the hot path stays free), galaxy.success_count.
- TracedGalaxyHierarchySource — galaxy.get_hierarchy spans tagged with
  galaxy.object_count.

GalaxyDriver.BuildProductionRuntimeAsync wraps the production seams in
the decorators. The driver itself doesn't take an OpenTelemetry package
dependency — System.Diagnostics.ActivitySource is in-box; the host
process picks the listener.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:36:47 -04:00
Joseph Doherty 78fe3e8a45 PR 5.W — Galaxy.ParityMatrix.md 
Tabular scenario × result map for the seven Phase 5 parity scenarios
(BrowseAndRead, Subscribe, Write, Alarm, History, Reconnect, ScanState).
Each row records the assertion strength (green strict, yellow soft) and
flags accepted-delta cases:

- Transport-entry host name divergence (legacy = Galaxy.Host process,
  mxgw = MxAccess.ClientName)
- Reconnect latency cadence — different paths, both correct for their
  own session shape
- Sampled-read value drift (we pin StatusCode + type, not value)
- Event-rate ±50% tolerance over a 3s window
- Per-driver IHistoryProvider absence (architectural pin from PR 1.3)

Phase 7 (PR 7.1) consumes this matrix as the default-flip gate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:32:20 -04:00
Joseph Doherty 837172ab39 PR 5.8 — Per-platform ScanState probe parity scenarios 
Closes Phase 5 scenario coverage. Both
GalaxyRuntimeProbeManager (legacy) and PerPlatformProbeWatcher (PR 4.7)
must surface the same per-host status stream:

- GetHostStatuses_emits_same_host_set_after_Discover — drives Discover
  on both backends, waits 1.5s for the probe watcher's first push, then
  asserts the platform-host set agrees (transport-entry names differ
  by design — legacy uses the Galaxy.Host process identity, mxgw uses
  MxAccess.ClientName, so we strip those before comparing).
- GetHostStatuses_state_per_platform_matches_across_backends — for
  every overlapping platform host, the HostState must be identical.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:31:09 -04:00
Joseph Doherty 80a0ca2651 PR 5.7 — Reconnect / disruption parity scenarios 
- Reinitialize_returns_both_backends_to_Healthy — drives
  ReinitializeAsync on each backend, asserts DriverState.Healthy
  afterwards, then re-reads a 3-tag sample to confirm the runtime
  surface is back. Recovery latency isn't pinned tightly (legacy = pipe
  + MxAccess COM client, mxgw = re-Register gw session — different
  cadences are expected).
- Health_state_diverges_only_when_one_backend_is_in_recovery — soft
  pin that both backends sit in Healthy or Degraded after init.

A tighter fault-injection scenario (toxiproxy-style) is the 5.7
follow-up — landed when the parity rig grows that capability.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:29:44 -04:00
Joseph Doherty 8d042c631b PR 5.6 — History-read parity scenarios 
Galaxy history reads route through the server-owned HistoryRouter
(Phase 1, PR 1.3) — neither Galaxy backend implements IHistoryProvider
directly. Parity surface here is the routing decision:

- Discover_emits_same_historized_attribute_set_for_both_backends — the
  IsHistorized attribute set must agree symmetric-set-wise; that's what
  HistoryRouter consumes when deciding whether to route a HistoryRead to
  the Wonderware historian sidecar.
- Neither_Galaxy_backend_implements_IHistoryProvider_directly — pins
  the architectural decision so a regression that re-introduces a
  per-driver history path fires.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:29:01 -04:00
Joseph Doherty bbdbdf8afb PR 5.5 — Alarm transition parity scenarios 
- Discover_emits_same_AlarmConditionInfo_per_alarm_attribute — both
  backends produce the same alarm-condition source-node-id set, with
  matching SourceName / InitialSeverity / InAlarmRef / DescAttrNameRef
  per condition. Skips when the rig's Galaxy carries no alarm-marked
  attributes.
- Discover_marks_at_least_one_alarm_attribute_when_dev_Galaxy_has_alarms
  — IsAlarm-marked variable count parity, soft-pinned (count must
  match across backends but doesn't have to be non-zero).

Alarm-event persistence (the SQLite store-and-forward → Wonderware
historian event store path) is exercised in PR 5.6 against the
historian sidecar.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:28:13 -04:00
Joseph Doherty 982771df9a PR 5.4 — Write-by-classification parity scenarios 
Both backends route a write through the same path keyed off the attribute's
SecurityClassification, so a single write request must produce the same
StatusCode on each:

- FreeAccess_or_Operate_write_returns_same_StatusCode_on_both_backends
  picks the first numeric FreeAccess/Operate attribute and writes 0.0.
- Configure_class_write_routes_through_secured_path_on_both_backends
  picks a Configure/Tune attribute, writes through the secured path,
  asserts StatusCode parity (the test doesn't care whether the write
  succeeds — only that both backends produce the same outcome).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:26:57 -04:00
Joseph Doherty 9db6da9c20 PR 5.3 — Subscribe + event-rate parity scenarios 
- Subscribe_returns_a_handle_for_each_backend — both backends accept
  the same full-reference list and return a non-null handle, with
  symmetric Unsubscribe cleanup.
- Subscribe_event_rate_within_tolerance_for_a_3s_window — counts
  OnDataChange invocations on each backend across a 3s window and
  asserts the mxgw/legacy ratio sits in [0.5, 1.5]. Skips when the
  sampled tags don't change in the window (configuration-only Galaxy).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:25:42 -04:00
Joseph Doherty 71443ecbf3 PR 5.2 — Browse + read parity scenarios 
Three scenarios using ParityHarness.RequireBoth:

- Discover_emits_same_variable_set_for_both_backends — symmetric set diff
  on the full-reference set must be empty.
- Discover_emits_same_DataType_and_SecurityClass_per_attribute — meta
  triple (DriverDataType, SecurityClass, IsHistorized) must match per
  attribute.
- Read_returns_same_value_and_status_for_a_sampled_attribute — samples
  the first 5 discovered variables, reads through both backends, asserts
  StatusCode equality and value-CLR-type equality (raw values may drift
  between the two reads on a live Galaxy).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:24:36 -04:00
Joseph Doherty 82cdf460c5 PR 5.1 — Driver.Galaxy.ParityTests project shell + ParityHarness 
Side-by-side fixture that boots both backends against the same dev Galaxy:

- Legacy GalaxyProxyDriver against an out-of-process Galaxy.Host EXE
  (skipped when ZB SQL on localhost:1433 isn't reachable or when the EXE
  hasn't been built).
- New in-process GalaxyDriver against an mxaccessgw gateway at
  http://localhost:5120 by default (skipped when the gateway isn't
  reachable). Endpoint, API key, and client name are env-var overridable
  for the central parity host.

Per-backend availability is independent — each scenario decides whether
to RequireBoth, GetDriver(specific), or use RunOnAvailableAsync to drive
both with the same closure and diff snapshots. PR 5.2–5.8 land scenarios
on top of this shell.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:22:04 -04:00
Joseph Doherty 21cac4c8c4 PR 4.W — Galaxy:Backend wiring + server-side factory registration 
- GalaxyDriver.InitializeAsync now builds the production gw runtime (MxGatewayClient,
  GalaxyMxSession, GatewayGalaxySubscriber, GatewayGalaxyDataWriter,
  ReconnectSupervisor, HostConnectivityForwarder, PerPlatformProbeWatcher) when no
  test seams are pre-injected; Dispose tears the chain down in order.
- GetHealth surfaces supervisor.IsDegraded as DriverState.Degraded so a transport
  drop is observable without polling the supervisor directly.
- DiscoverAsync now refreshes the per-platform probe watcher's membership against
  $WinPlatform / $AppEngine objects after every discovery pass.
- OnPumpDataChange routes ScanState changes through the probe watcher in addition
  to fanning out OnDataChange to ISubscribable consumers.
- Server registers GalaxyDriver under "GalaxyMxGateway" alongside the legacy
  "Galaxy" GalaxyProxyDriver factory so DriverInstance rows can opt in.
- Bumped Server.Tests' Microsoft.Extensions.Logging.Abstractions to 10.0.7 to
  resolve the downgrade pulled in transitively via MxGateway.Client.
- Lifecycle factory tests switched to the internal seam-injection ctor so they
  no longer attempt a real gRPC connect during InitializeAsync.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 16:10:31 -04:00
Joseph Doherty dae520b9c0 PR 4.7 — Host-connectivity probes (IHostConnectivityProbe scaffold) 
HostStatusAggregator merges transport + per-platform host entries with
change-event diffing (re-asserting same state is a no-op so a stable
ScanState=Running burst doesn't fan out duplicates). PerPlatformProbeWatcher
ports the legacy GalaxyRuntimeProbeManager state machine onto the gw
subscription path: SubscribeBulk for `<tag>.ScanState`, idempotent
SyncPlatformsAsync (subscribe new, unsubscribe dropped), and a
DecodeState helper pinning bool/int/string ScanState values + bad-quality
fallback. HostConnectivityForwarder is the skeleton for the gw-6
StreamSessionHealth signal — until that mxaccessgw RPC ships, PR 4.5's
ReconnectSupervisor pushes transport state by calling SetTransport on
session connect/disconnect.

GalaxyDriver wiring (implement IHostConnectivityProbe, route OnDataChange
to PerPlatformProbeWatcher, expose GetHostStatuses() / OnHostStatusChanged,
push transport from supervisor) is deferred to PR 4.W to avoid conflict
with the rest of the Phase 4 deferred wiring (4.5 supervisor + 4.6
DeployWatcher).

Tests: 19 new
- HostStatusAggregatorTests (9): empty snapshot, new-host change with
  Unknown predecessor, same-state silence, transition diff, snapshot
  reflects every host, case-insensitive host names, Remove returns true
  for tracked, Remove false for unknown, concurrent updates don't corrupt.
- HostConnectivityForwarderTests (5): SetTransport routes under client
  name, transitions fire change, repeated same-state silent, empty client
  name throws, post-dispose throws.
- PerPlatformProbeWatcherTests (5 + theory pinning DecodeState's full
  truth table): subscribe N platforms, idempotent re-sync, removed
  platforms unsubscribed + dropped from aggregator, OnProbeValueChanged
  routing for Running/Stopped/bad-quality/foreign-ref, Dispose
  unsubscribes everything.

NOTE: build is currently broken because mxaccessgw/clients/dotnet/ has
been removed from C:\Users\dohertj2\Desktop\mxaccessgw — this PR's source
is internally consistent and isolated from the missing dependency, but the
existing Driver.Galaxy code (PRs 4.1–4.6) can't compile until the .NET
client is restored. Once it is, expect 116 + 19 = 135 tests in the
Driver.Galaxy.Tests project.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:47:13 -04:00
Joseph Doherty 123e3e48b9 PR 4.5 — ReconnectSupervisor 
State machine that drives GalaxyDriver's recovery from gw transport
failure. Healthy → TransportLost → Reopening → Replaying → Healthy. Drivers
report failure signals; the supervisor runs reopen + replay with capped
exponential backoff (default 500ms → 30s) until both succeed.

Files:
- Runtime/ReconnectSupervisor.cs — state machine with snapshot, change
  event, last-error tracking, and a one-attempt-at-a-time recovery loop.
  Idempotent ReportTransportFailure: repeated failure reports during an
  in-flight recovery do not spawn parallel loops. Reopen + replay are
  caller-supplied callbacks (the driver injects them in the wire-up PR);
  reopen re-Registers the gw session, replay re-establishes every active
  subscription via gw's ReplaySubscriptionsCommand (mxaccessgw issue gw-3)
  or the SubscribeBulk fallback. Dispose cancels the loop cleanly.
- Public StateTransition record + IsDegraded predicate the driver maps
  to DriverState.Degraded for health snapshots.

Wiring (GalaxyDriver subscribes the supervisor to its EventPump's
transport-failure signal, exposes IsDegraded through GetHealth(), routes
reopen/replay callbacks through GalaxyMxSession + SubscriptionRegistry)
lands in PR 4.W to avoid conflict with the parallel host-probe track
(PR 4.7) and align the wire-up with the rest of Phase 4's plumbing.

9 supervisor tests (full state-machine traversal, retry-until-success on
both reopen and replay failures, idempotent failure reports, last-error
propagation, Dispose mid-recovery, post-dispose throws, fast-path Healthy
WaitForHealthy).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:39:21 -04:00
Joseph Doherty 7922e573b1 PR 4.6 — DeployWatcher (IRediscoverable scaffold) 
DeployWatcher consumes GalaxyRepositoryClient.WatchDeployEventsAsync,
suppresses the bootstrap event, and raises RediscoveryEventArgs whenever
time_of_last_deploy actually changes. Reconnect-on-error with capped
exponential backoff. GalaxyDriver wiring (IRediscoverable.OnRediscoveryNeeded
event + StartAsync inside InitializeAsync) lands in a follow-up so this PR
doesn't conflict with the parallel runtime track.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:33:37 -04:00
Joseph Doherty ce004c80ab PR 4.4 — ISubscribable + EventPump 
Subscription path online. GalaxyDriver implements ISubscribable; subscribes
batches via gw SubscribeBulkAsync, runs a single shared EventPump consumer
of StreamEventsAsync, fans out OnDataChange events to every driver
subscription that observes the changed gw item handle.

Files:
- Runtime/GalaxySubscriptionHandle.cs — record implementing ISubscriptionHandle.
- Runtime/SubscriptionRegistry.cs — bookkeeping with forward (subscriptionId
  → bindings) and reverse (itemHandle → list of subscriptionIds) maps. The
  reverse map is the fan-out index so a single OnDataChange dispatches to
  every subscription that observes the changed handle.
- Runtime/IGalaxySubscriber.cs — driver-side seam: SubscribeBulk +
  UnsubscribeBulk + StreamEventsAsync. Production wraps GalaxyMxSession;
  tests substitute a fake driving synthetic MxEvents.
- Runtime/GatewayGalaxySubscriber.cs — production. Forwards to
  MxGatewaySession; bufferedUpdateIntervalMs is captured for now and
  becomes a SetBufferedUpdateInterval call once gw issue #102 / gw-9 lands
  (PR 6.3 picks this up).
- Runtime/EventPump.cs — long-running background consumer of
  StreamEventsAsync. Decodes MxValue + maps quality byte/MxStatusProxy via
  StatusCodeMap. Fan-out per subscriber resolves through the registry; bad
  handler exceptions are caught + logged, never break the dispatch loop.
  Filters out non-OnDataChange families (write-complete and operation-
  complete come back via InvokeAsync's reply path, not the event stream).

GalaxyDriver:
- Adds ISubscribable. SubscribeAsync allocates a subscription id,
  SubscribeBulks, builds the binding list (failed gw entries get
  ItemHandle=0 + a per-tag warn log), registers, and returns the handle.
  EventPump is started lazily on first subscribe; one pump per driver
  shared across all subscriptions.
- UnsubscribeAsync removes from the registry first (so stale events are
  filtered immediately) then calls UnsubscribeBulk best-effort. Foreign
  handles throw ArgumentException.
- ReadAsync NotSupportedException message updated: PR 4.4 no longer the
  pointer (deferred to a small follow-up that wraps the pump as a
  one-shot reader).
- Dispose tears down the pump first, then the repository client, then
  clears state.
- Internal ctor extended with optional subscriber parameter.

Tests (15 new, 109 Galaxy total):
- SubscriptionRegistryTests: monotonic id allocation, single+multi
  subscription fan-out, failed-handle exclusion, removal isolation, count
  invariants.
- GalaxyDriverSubscribeTests: handle allocation + value-change dispatch,
  multi-subscription fan-out, failed-tag silence, unsubscribe drops gw
  handle and stops dispatch, foreign handle throws, no-subscriber throws,
  empty-tag-list returns handle without calling gw.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:33:27 -04:00
Joseph Doherty a617086da1 PR 4.3 — IWritable + secured-write routing 
Write path online. GalaxyDriver implements IWritable; routes by
SecurityClassification — SecuredWrite / VerifiedWrite tags go through
MxCommandKind.WriteSecured, everything else through MxGatewaySession.
WriteAsync. Per-tag classifications are captured during ITagDiscovery via a
SecurityCapturingBuilder wrapper that intercepts Variable() calls without
the discoverer needing to know about the driver's internal state.

Files:
- Runtime/MxValueEncoder.cs — boxed CLR value → MxValue. Covers seven Galaxy
  scalar types (bool/int8-32/uint8-32 → Int32, int64/uint64 → Int64, float,
  double, string, DateTime/DateTimeOffset → Timestamp) and 1-D array
  variants. Inverse of MxValueDecoder; round-trip pinned by tests.
  DateTime.Local converts to UTC; unsupported types throw ArgumentException.
- Runtime/IGalaxyDataWriter.cs — driver-side seam. Tests inject a fake to
  capture routing decisions; production path uses GatewayGalaxyDataWriter.
- Runtime/GatewayGalaxyDataWriter.cs — production. Lazy-AddItem caches
  itemHandles, encodes value, routes Write vs WriteSecured, translates
  MxCommandReply (ProtocolStatus → BadCommunicationError; first
  MxStatusProxy in statuses[] via StatusCodeMap.FromMxStatus). Per-tag
  exception isolation: one bad write doesn't fail the batch.
- GalaxyDriver: now implements IWritable. Discovery wraps the supplied
  IAddressSpaceBuilder in SecurityCapturingBuilder which records each
  attribute's SecurityClass into _securityByFullRef before delegating.
  WriteAsync resolves classification per tag (FreeAccess default for
  unknown tags — matches the legacy backend), routes through the injected
  writer. Throws NotSupportedException with PR 4.4 pointer when no writer
  is wired (production path requires GalaxyMxSession.Connect from PR 4.4).

Tests (32 new, 94 Galaxy total):
- MxValueEncoder: every scalar type, narrowing checks (sbyte/short/byte/
  ushort fit Int32; uint within Int32 range; ulong within Int64),
  DateTime.Local → UTC conversion, array variants for bool/double/string/
  DateTime, Dimensions populated, unsupported-type throws ArgumentException,
  encoder/decoder round-trip pin.
- GalaxyDriverWriteTests: WriteAsync routes through fake writer with
  values intact; theory exercises every SecurityClassification value through
  the discovery-then-write path; unknown-tag defaults to FreeAccess; empty-
  request short-circuit; no-writer fail-loud; post-dispose throws.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:24:22 -04:00
Joseph Doherty 85bdf0d58b PR 4.2 — IReadable abstraction + StatusCodeMap + MxValueDecoder 
Read path scaffold + the byte→uint quality mapping table that the parity
matrix (PR 5.x) pins. PR 4.4 supplies the production GW-backed reader; this
PR ships the abstraction and the supporting infrastructure so 4.4 just
plugs the implementation in.

Files:
- Runtime/StatusCodeMap.cs — explicit OPC DA quality byte → OPC UA
  StatusCode uint mapping. Extends the legacy Galaxy.Host
  HistorianQualityMapper with named constants (Good / GoodLocalOverride,
  Uncertain + 4 substatuses, Bad + 7 substatuses, BadInternalError) and an
  MxStatusProxy → uint helper that honors success flag → detail byte →
  detected_by transport-error fallback. Unknown bytes fall back to category
  bucket with a once-per-session diagnostic log so field captures can
  extend the table.
- Runtime/MxValueDecoder.cs — gateway MxValue → boxed CLR value for the
  seven Galaxy data types (Boolean, Int32, Int64, Float32, Float64, String,
  DateTime) plus their array variants. Honors MxValue.IsNull and
  RawValue passthrough.
- Runtime/IGalaxyDataReader.cs — driver-side seam for one-shot reads. PR
  4.4 ships the production wrapper around MxGatewaySession.SubscribeBulk +
  StreamEvents + UnsubscribeBulk; this PR exposes the contract so
  GalaxyDriver.ReadAsync wires through it.
- Runtime/GalaxyMxSession.cs — wrapper around MxGatewaySession that owns
  the Register handle. ConnectAsync opens session + Register; AttachForTests
  lets tests bypass real gw construction. PR 4.3/4.4/4.5 add write,
  subscribe, and reconnect surfaces.

GalaxyDriver:
- Implements IReadable. ReadAsync routes through the injected
  IGalaxyDataReader (test seam) when present; production path throws
  NotSupportedException pointing at PR 4.4 — protects deployments running
  this PR from silent wrong reads while signaling that the legacy-host
  backend (Galaxy:Backend=legacy-host) handles reads in the meantime.
- Internal ctor extended with optional dataReader parameter (default null,
  preserves PR 4.0/4.1 callers).

Tests: 42 new — exhaustive byte→uint table for StatusCodeMap (15 known
codes + category-bucket fallback for unknowns + MxStatusProxy precedence
rules + OPC UA top-byte invariants), every MxValue oneof case for the
decoder (bool/int32/int64/float/double/string/timestamp/3 array variants/
raw bytes/null), GalaxyDriver IReadable wiring (route-through, empty-
request, no-reader-throws, post-dispose-throws, status-code preservation).
62 Galaxy tests total pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:15:42 -04:00
Joseph Doherty ecba5cedf9 PR 4.1 — ITagDiscovery via GalaxyRepositoryClient + AlarmRefBuilder 
Browse path online. GalaxyDriver now implements ITagDiscovery against the
gateway's GalaxyRepositoryClient (PR 0.1's mxaccessgw browse RPC) and feeds
the address-space builder one folder per gobject + one variable per dynamic
attribute, with alarm-bearing attributes carrying all five sub-attribute refs
the server-level AlarmConditionService (PR 2.2) needs.

Files:
- Browse/IGalaxyHierarchySource.cs — driver-side seam between the discoverer
  and the gateway. Test fakes return canned hierarchies so the discoverer's
  translation logic is exercised without a real gRPC channel.
- Browse/GatewayGalaxyHierarchySource.cs — production wrapper around
  GalaxyRepositoryClient.DiscoverHierarchyAsync (paged internally).
- Browse/GalaxyDiscoverer.cs — translates GalaxyObject → IAddressSpaceBuilder
  calls. Browse name = contained_name (falls back to tag_name); full
  reference = attr.full_tag_reference when set, else tag_name + "." +
  attribute_name. Skips objects/attributes with empty identity.
- Browse/DataTypeMap.cs — mx_data_type → DriverDataType (port from legacy
  GalaxyProxyDriver.MapDataType, same fallback to String for unknown codes).
- Browse/SecurityMap.cs — security_classification → SecurityClassification
  (port from legacy GalaxyProxyDriver.MapSecurity).
- Browse/AlarmRefBuilder.cs — populates the five sub-attribute refs by
  Galaxy convention (.InAlarm/.Priority/.DescAttrName/.Acked/.AckMsg). The
  same convention the legacy GalaxyAlarmTracker hard-coded; concentrated
  here so PR 2.2's service receives complete AlarmConditionInfo rows.

GalaxyDriver:
- Added internal ctor accepting IGalaxyHierarchySource? for test injection.
  Default lazily builds GatewayGalaxyHierarchySource around a
  GalaxyRepositoryClient constructed from options on first DiscoverAsync.
- Owned GalaxyRepositoryClient disposed in Dispose.
- ApiKey resolution is currently a passthrough of ApiKeySecretRef — PR 4.W
  (or follow-up) wires DPAPI-backed secret resolution.

csproj: path-based ProjectReference to mxaccessgw (the user is shipping
that repo on a parallel track; both repos sit side-by-side on the dev box).
Tests project also references MxGateway.Contracts directly to construct
GalaxyObject / GalaxyAttribute fixtures.

Tests: 10 new in Browse/GalaxyDiscovererTests.cs covering folder-per-object,
variable-per-attribute, full-ref defaulting + gw-supplied override, browse-
name fallback, every metadata field propagation, alarm sub-attribute ref
population, non-alarm rows skip MarkAsAlarmCondition, empty-identity skips,
empty-attribute-name skips, end-to-end through GalaxyDriver.DiscoverAsync.
20 total Galaxy tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 15:06:02 -04:00
Joseph Doherty f6a4f919e2 PR 4.0 — Driver.Galaxy project skeleton + factory 
New in-process .NET 10 driver project at
src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/. The Tier-A replacement for
Driver.Galaxy.Host + Driver.Galaxy.Proxy. PR 4.0 ships only the IDriver
shape + factory + options; capability bodies (browse, read, write,
subscribe, deploy-watch, host probes) land in PRs 4.1–4.7.

Files:
- Driver.Galaxy.csproj — net10 x64, AnyCPU+x64 platforms, references
  Core.Abstractions + Core. No MxGatewayClient ProjectReference yet — that
  comes in PR 4.2 once the gw NuGet package is wired (the user is
  shipping mxaccessgw on a parallel track).
- Config/GalaxyDriverOptions.cs — nested record hierarchy
  (Gateway/MxAccess/Repository/Reconnect) mirroring the JSON shape spelled
  out in lmx_mxgw_impl.md PR 4.0 acceptance section.
- GalaxyDriver.cs — minimal IDriver impl. Initialize/Shutdown toggle
  DriverHealth between Healthy/Unknown; Reinitialize bumps the timestamp;
  GetMemoryFootprint=0 (PR 4.4 wires SubscriptionRegistry size);
  FlushOptionalCachesAsync no-op. Logs intent on lifecycle calls so
  partial deployments are diagnosable.
- GalaxyDriverFactoryExtensions.cs — JSON parser, default fill-ins,
  validation throw on missing required fields. Driver type name
  "GalaxyMxGateway" intentionally distinct from legacy "Galaxy" so both
  factories coexist during parity testing (Phase 5). PR 4.W's
  Galaxy:Backend switch picks one or the other.

Tests:
- 10 tests in Driver.Galaxy.Tests covering minimal-config defaults, full
  override path, three required-field error cases, factory registration
  via DriverFactoryRegistry.TryGet, lifecycle health transitions
  (Init → Shutdown → Reinit), Dispose idempotency, and post-disposal
  ObjectDisposedException.

slnx: registers the new Driver.Galaxy + Driver.Galaxy.Tests projects.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:57:31 -04:00
Joseph Doherty 854827090a PR 3.W — Phase 3 wire-up: Wonderware sidecar DI registration 
Solution + DI plumbing to complete Phase 3. With this PR the .NET 10 server
can boot with the Wonderware historian sidecar in the loop, gated by config
so existing deployments are unaffected.

slnx: registers Driver.Historian.Wonderware (net48 sidecar),
Driver.Historian.Wonderware.Client (net10 client), and both test projects.

Server.csproj: adds ProjectReference to the .NET 10 client.

Program.cs: reads Historian:Wonderware:* configuration. When Enabled=true,
constructs a WonderwareHistorianClient singleton and:
  - Registers it as IAlarmHistorianWriter so the SqliteStoreAndForwardSink
    drain (task #248) can pick it up.
  - Registers a WonderwareHistorianBootstrap hosted service that, on
    StartAsync, calls IHistoryRouter.Register(prefix, client) under the
    configured DriverInstancePrefix (default "galaxy") — lets the
    HistoryRead* dispatch in DriverNodeManager find the sidecar via
    longest-prefix-match resolution.

When Enabled=false (the default), DriverNodeManager keeps using its
internal LegacyDriverHistoryAdapter for the read path and the existing
NullAlarmHistorianSink stays in place — drop-in compatible with every
deployment that hasn't moved off Galaxy.Host yet.

42 server integration tests + 10 client tests pass. Full solution build
clean (0/0).

Note: scripts/install/Install-Services.ps1 and
src/.../Server/appsettings.json carry intermixed user WIP and are NOT
committed in this PR. Equivalent edits applied locally:

  Install-Services.ps1: new -InstallWonderwareHistorian switch installs the
  OtOpcUaWonderwareHistorian service alongside OtOpcUaGalaxyHost;
  generates a fresh historian shared secret; OtOpcUa service depends on
  both when historian sidecar is installed.

  Server/appsettings.json: new Historian.Wonderware section with
  Enabled=false default, PipeName/SharedSecret/PeerName/
  DriverInstancePrefix/ConnectTimeoutSeconds/CallTimeoutSeconds keys.

Both pieces should land in a follow-up commit once the user's WIP on those
files clears.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:48:47 -04:00
Joseph Doherty 14947fde51 PR 3.4 — Wonderware historian sidecar .NET 10 client 
New project Driver.Historian.Wonderware.Client (net10 x64) implements both
Core.Abstractions.IHistorianDataSource (read paths consumed by the server's
IHistoryRouter) and Core.AlarmHistorian.IAlarmHistorianWriter (alarm-event
drain consumed by SqliteStoreAndForwardSink) against the sidecar's PR 3.3
pipe protocol.

Wire-format files (Framing/MessageKind, Hello, Contracts, FrameReader,
FrameWriter) are byte-identical mirrors of the sidecar's net48 originals —
the sidecar can't be referenced as a ProjectReference because of the
runtime/bitness gap, so we duplicate and pin the wire bytes via tests.

PipeChannel owns one bidirectional NamedPipeClientStream + Hello handshake +
serializes calls. Single in-flight at a time (semaphore); transport failures
trigger one in-flight reconnect-and-retry before propagating. Connect is
abstracted behind a Func<CancellationToken, Task<Stream>> so tests inject
in-process pipes.

WonderwareHistorianClient maps:
- HistorianSampleDto.Quality (raw OPC DA byte) → OPC UA StatusCode uint via
  QualityMapper (port of HistorianQualityMapper from sidecar).
- HistorianAggregateSampleDto.Value=null → BadNoData (0x800E0000).
- WriteAlarmEventsReply.PerEventOk[i]=true → Ack, false → RetryPlease.
  Whole-call failure or transport exception → RetryPlease for every event in
  the batch (drain worker handles backoff).
- AlarmHistorianEvent → AlarmHistorianEventDto with severity bucketed via
  AlarmSeverity-to-ushort mapping (Low=250, Medium=500, High=700, Crit=900).

GetHealthSnapshot tracks transport success + sidecar-reported failure
separately; ConsecutiveFailures rises on operation-level errors, not just
transport drops.

10 round-trip tests via FakeSidecarServer (in-process net10 fake using the
client's own framing): byte→uint quality mapping, null-bucket BadNoData,
at-time order preservation, event-field round-trip, sidecar error surfacing,
WriteBatch per-event status, whole-call retry-please mapping, Hello
shared-secret rejection, transport-drop reconnect-and-retry, health snapshot
counters.

PR 3.W will register this client as IHistorianDataSource + IAlarmHistorianWriter
in OpcUaServerService DI.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:40:56 -04:00
Joseph Doherty 9f7a4ac769 PR 3.3 — Wonderware sidecar pipe protocol + dispatcher 
Sidecar now serves a length-prefixed, kind-tagged MessagePack pipe protocol
mirroring Galaxy.Host's: 4-byte BE length + 1-byte MessageKind + body, 16 MiB
cap. Hello handshake validates per-process shared secret + protocol major
version + caller SID via ImpersonateNamedPipeClient before any work frame
runs.

Five contract pairs ship in this PR:

  ReadRawRequest          ↔ ReadRawReply
  ReadProcessedRequest    ↔ ReadProcessedReply
  ReadAtTimeRequest       ↔ ReadAtTimeReply
  ReadEventsRequest       ↔ ReadEventsReply
  WriteAlarmEventsRequest ↔ WriteAlarmEventsReply

Timestamps cross the wire as DateTime ticks (long) to dodge MessagePack's
DateTime kind/timezone quirks; both sides convert with DateTime(ticks, Utc).
Sample values cross as MessagePack-serialized byte[] so the .NET 10 client
(PR 3.4) deserializes per the tag's mx_data_type without the sidecar needing
to know OPC UA types.

HistorianFrameHandler dispatches by MessageKind to IHistorianDataSource (the
PR 3.2 lifted interface) for reads, and to a new IAlarmEventWriter strategy
for the alarm-event persistence path. Per-call exceptions surface as
Success=false replies so a single bad request doesn't kill the connection.
WriteAlarmEvents replies carry per-event success flags; the SQLite
store-and-forward sink retries failed slots on the next drain tick.

Program.cs spins the pipe server when OTOPCUA_HISTORIAN_ENABLED=true. Pipe-
only mode (default false) preserves PR 3.1's smoke-test behaviour: the host
still validates env vars and waits for Ctrl-C, but doesn't initialize the
Wonderware SDK.

Sidecar test project gains 8 round-trip tests (37 total now): every contract
pair round-trips through FrameReader/FrameWriter via in-memory streams, the
handler surfaces historian exceptions cleanly, WriteAlarmEvents per-event
status flows through, and the no-writer-configured path returns a clean
error reply.

Added MessagePack 2.5.187 to the sidecar csproj.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:27:17 -04:00
Joseph Doherty bc7ec746c5 PR 1+2.W — Wire HistoryRouter + AlarmConditionService into DI 
Server-side singletons threaded through OpcUaApplicationHost → OtOpcUaServer
→ DriverNodeManager construction. New ctor parameters are last-position
optional with null defaults so every existing test construction site
(OpcUaServerIntegrationTests, AlarmSubscribeIntegrationTests, etc.) keeps
working unchanged.

Program.cs:
  AddSingleton<IHistoryRouter, HistoryRouter>();
  AddSingleton<AlarmConditionService>();

The router stays empty after this PR. DriverNodeManager's internal
LegacyDriverHistoryAdapter handles every driver that still implements
IHistoryProvider; PR 3.W will register the Wonderware sidecar as a router
source; PR 7.2 retires the legacy fallback entirely.

44 alarm + history + integration tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:13:51 -04:00
Joseph Doherty 9365beb966 PR 3.2 — Lift Wonderware Historian SDK code to sidecar 
Move all historian implementation files from Driver.Galaxy.Host/Backend/Historian/
to Driver.Historian.Wonderware/Backend/. Sidecar now owns the aahClientManaged /
aahClientCommon SDK references; Galaxy.Host project-references the sidecar so
MxAccessGalaxyBackend keeps building until PR 7.2 retires Galaxy.Host entirely.

10 source files moved (preserving git history via git mv):
  IHistorianDataSource, HistorianDataSource, HistorianClusterEndpointPicker,
  HistorianClusterNodeState, HistorianConfiguration, HistorianEventDto,
  HistorianHealthSnapshot, HistorianQualityMapper, HistorianSample,
  IHistorianConnectionFactory.

2 historian tests moved alongside (HistorianClusterEndpointPickerTests,
HistorianQualityMapperTests). Sidecar test project now hosts 29 tests (1 PR 3.1
smoke + 28 moved historian tests, all passing).

Galaxy.Host's remaining 6 historian-flavored tests (HistorianWiringTests,
HistoryReadAtTimeTests, HistoryReadEventsTests, HistoryReadProcessedTests)
keep passing via the project reference — using directives updated to reach
the new namespace.

Sidecar deliberately speaks no Core.Abstractions — its surface is the legacy
List<HistorianSample> shape; PR 3.4's .NET 10 client translates to the
Core.Abstractions shapes added in PR 1.1.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:13:13 -04:00
Joseph Doherty ef22a61c39 v2 mxgw migration — Phase 1+2+3.1 wiring (7 PRs) 
Foundational PRs from lmx_mxgw_impl.md, all green. Bodies only — DI/wiring
deferred to PR 1+2.W (combined wire-up) and PR 3.W.

PR 1.1 — IHistorianDataSource lifted to Core.Abstractions/Historian/
  Reuses existing DataValueSnapshot + HistoricalEvent shapes; sidecar (PR
  3.4) translates byte-quality → uint StatusCode internally.

PR 1.2 — IHistoryRouter + HistoryRouter on the server
  Longest-prefix-match resolution, case-insensitive, ObjectDisposed-guarded,
  swallow-on-shutdown disposal of misbehaving sources.

PR 1.3 — DriverNodeManager.HistoryRead* dispatch through IHistoryRouter
  Per-tag resolution with LegacyDriverHistoryAdapter wrapping
  `_driver as IHistoryProvider` so existing tests + drivers keep working
  until PR 7.2 retires the fallback.

PR 2.1 — AlarmConditionInfo extended with five sub-attribute refs
  InAlarmRef / PriorityRef / DescAttrNameRef / AckedRef / AckMsgWriteRef.
  Optional defaulted parameters preserve all existing 3-arg call sites.

PR 2.2 — AlarmConditionService state machine in Server/Alarms/
  Driver-agnostic port of GalaxyAlarmTracker. Sub-attribute refs come from
  AlarmConditionInfo, values arrive as DataValueSnapshot, ack writes route
  through IAlarmAcknowledger. State machine preserves Active/Acknowledged/
  Inactive transitions, Acked-on-active reset, post-disposal silence.

PR 2.3 — DriverNodeManager wires AlarmConditionService
  MarkAsAlarmCondition registers each alarm-bearing variable with the
  service; DriverWritableAcknowledger routes ack-message writes through
  the driver's IWritable + CapabilityInvoker. Service-raised transitions
  route via OnAlarmServiceTransition → matching ConditionSink. Legacy
  IAlarmSource path unchanged for null service.

PR 3.1 — Driver.Historian.Wonderware shell project (net48 x86)
  Console host shell + smoke test; SDK references + code lift come in
  PR 3.2.

Tests: 9 (PR 1.1) + 5 (PR 2.1) + 10 (PR 1.2) + 19 (PR 2.2) + 1 (PR 3.1)
all pass. Existing AlarmSubscribeIntegrationTests + HistoryReadIntegrationTests
unchanged.

Plan + audit docs (lmx_backend.md, lmx_mxgw.md, lmx_mxgw_impl.md)
included so parallel subagent worktrees can read them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-29 14:03:36 -04:00
Joseph Doherty 012c42a846 Task #156 — TagsTab: per-tag advanced Modbus fields (Deadband, UnitId, CoalesceProhibited) 
#155 wired the basic tag form (Name / Driver / Equipment / DataType / Access /
WriteIdempotent + ModbusAddressEditor for the address). The per-tag knobs added
across #141 / #142 / #143 still required operators to hand-edit TagConfig JSON.
This commit exposes them through an "Advanced" expander.

UI changes (TagsTab.razor):

- Collapsible "▶ Advanced (Deadband / UnitId override / CoalesceProhibited)"
  button below the address editor, visible only when the selected driver is
  Modbus. Collapsed by default — basic form covers the typical edit workflow.
- Three numeric / checkbox inputs with inline help text explaining each knob's
  purpose and when to use it.
- _showAdvanced auto-opens on Edit when any of the advanced fields are present
  in the existing TagConfig — operators see immediately what's been configured.

Save-side serialization:

- New RefreshTagConfigJson serializes the address + advanced fields into a
  structured JSON object using a Dictionary<string, object?>. Fields with
  default / empty values are omitted to keep diffs in the existing draft-diff
  viewer minimal — a tag with only an address still produces
  `{"addressString":"40001:F"}` and not a full superset object with nulls.
- OnAddressChanged + OnAdvancedChanged both delegate to RefreshTagConfigJson
  so any input change keeps TagConfig in sync.

Read-side hydration:

- New HydrateModbusFromTagConfig parses an existing TagConfig JSON and
  populates _modbusAddress + the three advanced fields. Falls back to empty
  defaults on malformed JSON. ResetAdvanced is called before hydration on
  every form open so leftover state from a previous edit doesn't leak.

ResetAdvanced helper introduced + called from StartAdd so a fresh "New tag"
form starts with everything cleared.

Tests (1 new in TagServiceTests):
- TagConfig_With_Advanced_Modbus_Fields_RoundTrips_Through_Factory — creates a
  tag whose TagConfig carries addressString + deadband + unitId +
  coalesceProhibited, persists via TagService, reloads, asserts every field
  survives. Then constructs a wrapping driver-config JSON and feeds it to
  ModbusDriverFactoryExtensions.CreateInstance — confirms the field NAMES the
  UI emits match what BuildTag's DTO consumes. If the UI's JSON shape ever
  drifts from the factory's expected DTO, this test catches it before users do.

119 + 1 = 120 Admin tests green. Solution build clean.
 2026-04-25 04:22:50 -04:00
Joseph Doherty ec57df1009 Task #155 — TagService + TagsTab CRUD UI for Modbus tags 
Closes the remaining loop on user-visible Modbus tag editing. Pre-#155 tags
arrived only via SQL seeding or runtime ITagDiscovery; the Admin UI had no
interactive surface for creating / editing / deleting tag rows.

Changes:

- TagService.cs (Admin/Services/) — CRUD wrapper around OtOpcUaConfigDbContext.Tags.
  ListAsync supports optional driver / equipment filters; CreateAsync auto-derives
  TagId; UpdateAsync persists editable fields; DeleteAsync removes the row. Mirrors
  the EquipmentService shape.
- TagsTab.razor (Components/Pages/Clusters/) — list + filter + add/edit/remove form.
  The address/config editor is conditional: when the selected DriverInstance is
  Modbus, ModbusAddressEditor (#145) renders with live-parse preview; otherwise a
  generic JSON textarea (matches the DriversTab pattern from #147). Save-side
  serializes the address-string into TagConfig as `{"addressString":"..."}` JSON.
- ClusterDetail.razor — new "Tags" tab in the cluster-detail nav strip + the routing
  switch.
- Program.cs — TagService registered as a scoped DI service.

Drive-by fix: ModbusDriverFactoryExtensions.CreateInstance promoted from internal
to public — Admin.Tests was using it via reflection-friendly internal access that
broke under the #153 logger overload addition. Public is the right access modifier
anyway since the Server-side bootstrapper calls it from a different assembly.

Drive-by fix #2: ModbusDriverConfigDto was missing MaxReadGap (#143) — surfaced by
the #147 round-trip test that flips MaxReadGap=12 in the view model and asserts
it lands on the resolved options. Added the field + binding line. Confirms #143's
DriverConfig JSON binding was incomplete since the original commit; no production
deployment configured this knob through JSON until now so the gap stayed hidden.

Tests (4 new TagServiceTests):
- Create_And_List_Surfaces_The_Tag — CreateAsync auto-assigns TagId; list returns
  the row.
- List_Filters_By_DriverInstance — driver-scoped filter works.
- Update_Persists_Editable_Fields — Name / DataType / AccessLevel / TagConfig all
  persist through Update.
- Delete_Removes_The_Row — basic delete verification.

113 + 4 (TagService) + 2 (DriversTab round-trip restored after compile fix) = 119
Admin tests green. Solution build clean.

Caveat: bUnit-style render tests for TagsTab still aren't included — Admin.Tests
doesn't have bUnit set up. The TagService logic is fully covered; the razor
component's parser/save glue is exercised by hand at runtime for now.
 2026-04-25 01:51:02 -04:00
Joseph Doherty 802366c2c6 Task #154 — driver-diagnostics RPC: HTTP endpoint + Admin client 
Foundation for surfacing per-driver runtime state from the Server process to
the Admin UI. #152 shipped GetAutoProhibitedRanges() as an in-process
accessor; #154 makes it reachable across processes.

Server side (HealthEndpointsHost):
- New URL family: /diagnostics/drivers/{driverInstanceId}/{driverType}/{topic}
- First wired topic: /diagnostics/drivers/{id}/modbus/auto-prohibited
- Driver-agnostic at the URL level — future driver types add their own
  segments[3] cases (e.g. /diagnostics/drivers/{id}/s7/dropped-pdus).
- 404 when the driver instance doesn't exist; 400 when the driver exists
  but isn't a Modbus driver (the per-type endpoint is wrong for this row).
- Response shape is flat JSON (unitId / region / startAddress / endAddress /
  lastProbedUtc / bisectionPending) so consumers don't have to reference the
  Driver.Modbus assembly's ModbusAutoProhibition record.
- Re-uses the existing HttpListener bound to localhost:4841 — same auth /
  reachability story as /healthz and /readyz.

Admin side:
- DriverDiagnosticsClient (Services/) — HttpClient wrapper that fetches the
  per-driver Modbus prohibition list. Returns null on 404/400 (driver
  missing or wrong type); throws on transport failures.
- ModbusAutoProhibitionsResponse + ModbusAutoProhibitionRow flat DTOs —
  client doesn't take a dep on Driver.Modbus.
- ModbusDiagnostics.razor at /modbus/diagnostics/{driverInstanceId} —
  table view with BISECTING (warning yellow) / ISOLATED (danger red)
  badges, relative timestamps (e.g. "5m ago"), Refresh button. Errors
  surface inline rather than swallowing.
- HttpClient registration in Program.cs reads
  DriverDiagnostics:ServerBaseUrl from appsettings.json (default
  http://localhost:4841/ for same-host deployments).

Tests (3 new in HealthEndpointsHostTests):
- Diagnostics_ReturnsModbusAutoProhibitions_ForLiveDriver — registers a
  Modbus driver with a programmable transport that protects register 102,
  records the prohibition via a coalesced ReadAsync, hits the endpoint,
  asserts the returned JSON matches (unitId / region / start / end / pending).
- Diagnostics_404_When_Driver_Not_Found
- Diagnostics_400_When_Driver_Is_Wrong_Type

Architecture note: the Admin-side bUnit-style component test isn't included
because Admin.Tests doesn't have bUnit set up. The DriverDiagnosticsClient
is unit-testable on its own with a mock HandlerStub if needed — left as a
follow-up alongside the broader bUnit setup task.

The diagnostic page is now reachable at /modbus/diagnostics/{driverId} from
any Admin instance pointing at a Server endpoint URL. Future driver types
(S7, AbCip) plug into the same channel by adding their own URL segments
in HealthEndpointsHost.WriteDriverDiagnosticsAsync.
 2026-04-25 01:32:21 -04:00
Joseph Doherty 8004394892 Task #153 — ModbusDriver: inject ILogger so prohibition events reach a sink 
#152 left a hook for structured logging when an auto-prohibition first
fires; this commit completes the wiring.

Changes:
- ModbusDriver constructor takes an optional ILogger<ModbusDriver> (defaults
  to NullLogger). Existing standalone callers stay compile-clean.
- RecordAutoProhibition logs LogWarning on first-fire only (re-fires of the
  same range stay quiet via the existing isNew de-dupe). Format includes
  DriverInstanceId, UnitId, Region, Start, End, Span — log aggregators can
  filter / count by any field.
- New LogProhibitionCleared helper called by both StraightReprobeAsync (when
  the re-probe succeeds on a single-register range) and BisectAndReprobeAsync
  (per-half clearing + a single combined line when both halves succeed).
- ModbusDriverFactoryExtensions.Register accepts an optional ILoggerFactory.
  Captured at registration time and used in the factory closure to construct
  a per-driver logger. Server bootstrap code that already has an ILoggerFactory
  in DI threads it through with a single argument addition; old call sites
  (Register(registry)) keep working with a null logger.

Tests (2 new ModbusLoggerInjectionTests):
- First_Failure_Emits_Single_Warning_Subsequent_Refire_Stays_Quiet — pins
  the de-dupe behaviour. First scan logs one warning with the expected
  structured fields; second scan with the same prohibition stays silent.
- Reprobe_Clearing_Prohibition_Emits_Information_Log — protected register
  unlocked between record and re-probe; re-probe success emits an info log
  containing "cleared".

CapturingLogger test harness is purpose-built (xUnit doesn't ship a logger
mock by default and adding Moq is overkill for two tests).

240 + 2 = 242 unit tests green.
 2026-04-25 01:26:20 -04:00
Joseph Doherty b8df230eb8 Task #152 — Modbus coalescing: surface auto-prohibitions through diagnostics 
Auto-prohibited ranges (#148) were previously visible only through an
internal AutoProhibitedRangeCount accessor used by tests. Production
operators had no way to see what the planner had learned without pulling
logs or inspecting driver state.

Changes:

- New public record `ModbusAutoProhibition(UnitId, Region, StartAddress,
  EndAddress, LastProbedUtc, BisectionPending)` — operator-facing snapshot
  shape. Lives in the addressing assembly's logical namespace alongside
  the other public types.
- `ModbusDriver.GetAutoProhibitedRanges()` returns
  `IReadOnlyList<ModbusAutoProhibition>` — a copy of the live prohibition
  map. Lock-protected snapshot so consumers don't race with the re-probe
  loop.
- RecordAutoProhibition tracks first-fire vs re-fire via the dictionary
  insert path, leaving a hook to add structured logging once an ILogger
  is plumbed through (currently elided to keep the constructor minimal
  for testability — a future change can wire ILogger and emit a single
  warning per first-fire).

Tests (1 new, additive to the 6 in ModbusCoalescingAutoRecoveryTests):
- GetAutoProhibitedRanges_Surfaces_Operator_Visible_Snapshot — confirms
  the snapshot shape: empty before any failure, populated with correct
  UnitId/Region/Start/End/BisectionPending after a failed coalesced read,
  LastProbedUtc within the recent past.

Docs:
- docs/v2/modbus-addressing.md — new "Coalescing auto-recovery" subsection
  consolidates the #148/#150/#151/#152 surface in one place. Documents
  the diagnostic accessor + flags the in-process consumption pattern
  (Server health endpoints today; Admin UI when an RPC channel exists).

239 + 1 = 240 unit tests green.

Caveat: the Admin UI surfacing (table render, "clear all prohibitions"
button) is intentionally NOT shipped here. Admin can't reach a live
ModbusDriver instance without a driver-diagnostics RPC channel that
doesn't exist yet — that's a larger architectural piece. For now the
data is queryable in-process by the Server's health endpoints; once an
RPC channel lands, Admin can wire the existing GetAutoProhibitedRanges
into a Blazor table without further driver changes.
 2026-04-25 01:19:10 -04:00
Joseph Doherty f823c81c96 Task #150 — Modbus coalescing: bisection-style range narrowing 
Pre-#150 a coalesced read failure recorded the FULL failed range as
permanently prohibited. Healthy registers around the actual protected
register stayed in per-tag mode forever (until ReinitializeAsync). The
re-probe loop shipped in #151 retried the whole range as a single block,
which would either succeed (clearing everything) or fail (changing
nothing).

Post-#150 the re-probe loop bisects multi-register prohibitions:

- _autoProhibited refactored from Dictionary<key, DateTime> to
  Dictionary<key, ProhibitionState> where ProhibitionState carries
  LastProbedUtc + SplitPending. Multi-register prohibitions enter with
  SplitPending=true; single-register prohibitions enter with
  SplitPending=false (already minimal).
- ReprobeLoopAsync delegates the per-pass work to
  RunReprobeOnceForTestAsync (also exposed for synchronous test driving).
  Each entry routes to BisectAndReprobeAsync (split-pending + multi-reg)
  or StraightReprobeAsync (single-reg / non-split-pending).
- Bisection: split (start, end) at mid = (start+end)/2. Try (start, mid)
  and (mid+1, end) as separate coalesced reads. Each FAILED half re-enters
  the prohibition map with SplitPending = (its end > its start). SUCCEEDED
  halves vanish, freeing the planner to coalesce across them on the next
  scan.
- Convergence: log2(span) re-probe ticks pin the prohibition to the
  actual single offending register(s). For a 100-register block with one
  protected address that's ~7 ticks.

Tests (3 new ModbusCoalescingBisectionTests):
- Bisection_Narrows_Multi_Register_Prohibition_Per_Reprobe — 11 tags
  100..110 with protected address 105. After 4 re-probe passes the
  prohibition collapses from (100..110) → (100..105) → (103..105) →
  (105..105).
- Bisection_Clears_When_Both_Halves_Are_Healthy — transient failure
  scenario; protection lifted before re-probe; both bisection halves
  succeed and the parent vanishes entirely.
- Bisection_Splits_Into_Two_When_Both_Halves_Still_Fail — TwoHoleTransport
  with protected addresses 102 + 108 in the same coalesced range. After
  bisection both halves still fail (each contains one of the protected
  addresses); the prohibition map grows to 2 entries.

236 + 3 = 239 unit tests green. Solution build clean.
 2026-04-25 01:16:09 -04:00
Joseph Doherty 9e4aae350b Task #151 — Modbus coalescing: periodic re-probe of auto-prohibitions 
#148 introduced auto-prohibited coalesced ranges that persist for the
driver lifetime. Long-running deployments with transient PLC permission
changes (firmware update unlocking a previously-protected register,
operator reconfiguring the device) had no recovery short of operator
restart.

Adds an opt-in background loop that re-probes each prohibition periodically:

- ModbusDriverOptions.AutoProhibitReprobeInterval (TimeSpan?, default null
  = disabled). Set to e.g. TimeSpan.FromHours(1) to opt in.
- _autoProhibited refactored from HashSet<key> to Dictionary<key, DateTime>
  so each entry tracks its last failure / last re-probe timestamp.
- ReprobeLoopAsync runs on the same Task.Run pattern as ProbeLoopAsync;
  cancelled by ShutdownAsync. Each tick snapshots the prohibition set
  and issues a one-shot coalesced read per range. Successful re-probes
  drop the prohibition; failed ones bump the timestamp + leave the
  prohibition in place.
- Communication failures during re-probe (transport-level) are treated
  the same as PLC-exception failures — the prohibition stays, but isn't
  upgraded to "permanent" since transports recover. The driver-instance
  health surface picks up the failure separately.
- ShutdownAsync explicitly clears the prohibition set so a manual restart
  via ReinitializeAsync starts with a clean slate (matches the old
  "restart to clear" semantics).
- Factory DTO + JSON binding extended with AutoProhibitReprobeMs field.

Tests (2 new, additive to the 3 in ModbusCoalescingAutoRecoveryTests):
- Reprobe_Clears_Prohibition_When_Range_Becomes_Healthy — protected
  register at 102 records prohibition; clearing the simulated protection
  + invoking the re-probe drops the prohibition.
- Reprobe_Leaves_Prohibition_When_Range_Is_Still_Bad — re-probe on a
  still-failing range keeps the prohibition in place.

Tests use a new internal RunReprobeOnceForTestAsync helper to fire one
re-probe pass synchronously, so the suite doesn't have to wait on the
background timer (the loop's timer behaviour is exercised implicitly via
the InitializeAsync wire-up + the synchronous helper sharing the actual
re-probe code path).

234 + 2 = 236 unit tests green.
 2026-04-25 01:12:48 -04:00
Joseph Doherty 8de152df4f Task #149 — Modbus address-preview page + ImportEquipment help 
The original task scope assumed a per-tag editor lived in EquipmentTab.razor
or a similar surface. Reading the codebase confirmed that's not the case:
tags are seeded via SQL (scripts/smoke/*) or arrive at runtime through
ITagDiscovery; the Admin UI has no per-tag CRUD page today. Equipment
import is for equipment metadata (Name / MachineCode / ZTag / SAPID /
Identification) — not tag rows.

Adjusted scope:

1. ModbusAddressPreview.razor — new standalone page at /modbus/address-preview.
   Hosts the ModbusAddressEditor component shipped in #145 + the family
   selector + a copy-pasteable grammar reference. Operators can sanity-check
   address-string syntax (40001:F:CDAB / HR1:I / V2000:F / D100:I etc.)
   without committing it to a config row first.

2. ImportEquipment.razor — appended a secondary alert banner clarifying
   that Modbus per-tag addressing isn't part of equipment import; points
   users at the Drivers tab + the new preview tool.

Builds clean against the existing Admin app. The actual per-tag CRUD UI is
still a separate piece of work — when it ships, it can drop in
ModbusAddressEditor directly. The preview page acts as the canonical
demonstration of how to use the component.

Razor caveat: the grammar reference uses literal `<...>` syntax tokens
that the Razor parser interprets as malformed elements when inlined in a
<pre> block. Held as a string field (_grammarReference) and rendered
through @ binding to sidestep the parser conflict.
 2026-04-25 01:09:24 -04:00
Joseph Doherty 3b0e093002 Task #148 — Modbus block-coalescing: auto-recover from protected register holes 
Pre-#148 behaviour: a coalesced FC03/FC04 read that crossed a write-only or
PLC-fault register marked every member tag Bad until the operator manually
flagged the offending tag with CoalesceProhibited. Healthy tags around the
hole stayed broken indefinitely.

Post-#148: two-stage recovery, no operator intervention needed.

1. Same-scan fallback: when a coalesced read fails with a Modbus exception
   (IllegalDataAddress, SlaveDeviceFailure, etc.), the planner does NOT
   mark members handled. The per-tag fallback in the same scan reads each
   member individually — non-protected members surface Good values
   immediately, and only the actual protected register stays Bad.

2. Cross-scan prohibition: the failed range (Unit, Region, Start, End) is
   recorded in a per-driver `_autoProhibited` set. On subsequent scans the
   planner checks each candidate merge against the set and refuses to
   re-form any block that overlaps a known-bad range. Net effect: after one
   scan with a failure, the protected range goes "per-tag mode" indefinitely
   while ranges around it keep coalescing normally.

Communication failures (timeouts, socket drops) are NOT auto-prohibited —
they're transport-level, not structural. The same coalesced read can succeed
once the transport recovers; recording it as "permanently bad" would defeat
coalescing for the whole driver instance.

Auto-prohibition state lives for the driver lifetime and clears on
ReinitializeAsync (operator restart). A periodic re-probe is a follow-up if
deployments need it without a restart.

Implementation:
- Added `_autoProhibited` HashSet<(byte, ModbusRegion, ushort, ushort)> +
  `_autoProhibitedLock` on ModbusDriver.
- `RangeIsAutoProhibited(unit, region, start, end)` overlap check called
  from the planner when forming blocks.
- `RecordAutoProhibition(...)` called from the catch (ModbusException)
  branch.
- The catch (Exception) branch (non-Modbus failures) keeps the pre-#148
  "mark all Bad in this scan, don't auto-prohibit" behaviour.
- Internal `AutoProhibitedRangeCount` accessor for tests.

Tests (3 new ModbusCoalescingAutoRecoveryTests):
- First_Failure_Falls_Back_To_PerTag_Same_Scan — three tags around a
  protected register at 102: T100 + T104 surface Good values via the
  per-tag fallback in the SAME scan; T102 surfaces the exception.
- Second_Scan_Skips_Coalesced_Read_Of_Prohibited_Range — confirms scan 2
  doesn't re-attempt the failed merge (no FC03 with quantity > 1 at the
  prohibited start).
- Tags_Outside_Prohibited_Range_Still_Coalesce — separate cluster at HR
  200..202 keeps coalescing normally even after the 100..104 cluster is
  prohibited.

234/234 unit tests green.

Follow-ups intentionally NOT shipped (smaller, independent changes):
- Bisection-style range narrowing — currently the prohibition range is the
  full failed block; the planner doesn't try to find the exact protected
  register. Operator-visible diagnostic + prohibition stays correct.
- Periodic re-probe to clear stale prohibitions.
- Surface auto-prohibited ranges through GetHostStatuses or a new
  diagnostic so the Admin UI can show what's been auto-isolated.
 2026-04-25 01:01:42 -04:00
Joseph Doherty 0b7653d3b2 Task #147 — wire ModbusOptionsEditor into DriversTab 
Branches the DriversTab driver-add form on driver type:
- For DriverType=Modbus, render the typed <ModbusOptionsEditor> component
  shipped in #145 instead of the generic JSON textarea.
- For other driver types, the existing textarea stays (other drivers ship
  their own typed editors per decision #94).

On Save, when type is Modbus, the form serialises ModbusOptionsViewModel
into the JSON DTO shape ModbusDriverFactoryExtensions consumes (host /
port / unitId / family / keepAlive / reconnect / max*** / writeOnChangeOnly
/ etc.). Other types still pass the textarea contents verbatim.

Drive-by fix: the DriverType dropdown listed "ModbusTcp" but the actual
factory-registered name is "Modbus" — DriverInstanceBootstrapper would
silently skip a row created with the old label because the factory lookup
would miss. Renamed to match.

Tests (2 new in ModbusOptionsViewModelTests):
- DriversTab_Serialized_Defaults_RoundTrip_Through_Factory — unedited
  view-model serializes to a JSON the factory accepts; resulting
  ModbusDriverOptions matches the form defaults bit-for-bit.
- DriversTab_Serializes_Edited_Values_Correctly — flipping Host / Port /
  UnitId / Family / MaxReadGap / WriteOnChangeOnly in the view model
  surfaces in the constructed driver's options.

The serializer in the test mirrors DriversTab.razor's SerializeModbusOptions
helper. If the form's serialization shape drifts, both must be updated
together; that's the cost of testing through the JSON DTO without bUnit.

Follow-up still open: the per-tag editor (ModbusAddressEditor wiring into
EquipmentTab.razor + the bulk-import help-text update) — that's a separate
surface that touches the equipment-row CRUD flow; covered as a follow-up
when the equipment tag editor surface is next touched.
 2026-04-25 00:58:03 -04:00
Joseph Doherty dfd027ebca Task #146 — Modbus addressing: align type codes with Wonderware DASMBTCP + Ignition 
Web verification (2026-04-25) against current vendor docs surfaced concrete
grammar conflicts in the v1 suffix grammar shipped in #137. Hard cutover
before the Admin UI rolls out widely so users don't paste `:I` from a
Wonderware spreadsheet and silently get wrong-typed reads.

Sources:
- Wonderware DASMBTCP user guide
  https://cdn.logic-control.com/media/DASMBTCP.pdf
- Ignition Modbus addressing (8.1)
  https://www.docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/opc-ua-drivers/modbus/modbus-addressing

Type-code changes:

| Code   | Pre-#146 | Post-#146  | Vendor reference            |
|--------|----------|------------|------------------------------|
| `:S`   | (n/a)    | Int16      | Wonderware DASMBTCP `S`      |
| `:US`  | (n/a)    | UInt16     | Ignition `HRUS`              |
| `:I`   | Int16    | **Int32**  | Wonderware `I` + Ignition `HRI` |
| `:UI`  | UInt16   | **UInt32** | Ignition `HRUI`              |
| `:I_64`  | (n/a)  | Int64      | Ignition `HRI_64`            |
| `:UI_64` | (n/a)  | UInt64     | Ignition `HRUI_64`           |
| `:BCD_32`| (n/a)  | BCD32      | Ignition `HRBCD_32`          |

Codes REMOVED (no clear vendor precedent + conflict with the new mapping):
`:DI`, `:L`, `:UDI`, `:UL`, `:LI`, `:ULI`, `:LBCD`. Pre-#146 configs that
use them get an "Unknown type code" diagnostic at parse time so users get
a fast surface-level error rather than silent wrong-typed reads.

Codes UNCHANGED (already vendor-aligned): `:BOOL`, `:F`, `:D`, `:BCD`,
`:STR<n>`. Modicon 5/6-digit + mnemonic regions (HR/IR/C/DI) + bit suffix
`.N` are also unchanged.

Defaults:
- Coils / DiscreteInputs → `BOOL` (unchanged)
- HoldingRegisters / InputRegisters with no explicit type → Int16 (matches
  Ignition's bare `HR` default)

Byte-order mnemonics (`:ABCD` / `:CDAB` / `:BADC` / `:DCBA`) are kept but
documented as OtOpcUa-specific — they aren't in any major vendor's per-tag
address string. Ignition uses a `-R` suffix per prefix; Wonderware
configures word-order at the topic level.

Tests:
- 12 Type_Codes_Parse rows updated to assert the new mappings.
- New Removed_Aliases_Are_Rejected (×7) confirms each pre-#146 alias now
  fails fast with "Unknown type code".
- Worked_Example_Int16_Array uses the new `:S` code.
- New Worked_Example_Int32_Array_Via_I_Code documents the `:I = Int32`
  vendor-alignment intent so a future "fix" doesn't accidentally regress.
- Unknown_Type_Code_Rejected_With_Catalog updated to match the new error
  message ("Valid: BOOL, S, US, I, ...").

Docs:
- docs/v2/modbus-addressing.md — table replaced with the post-#146 codes,
  each row cites its Wonderware / Ignition reference. New "Codes removed
  in #146" subsection documents the cutover.
- docs/Driver.Modbus.Cli.md — example grammar list updated; explicit
  type-code reminder appended.

114 addressing tests + 231 driver tests still green. Solution build clean.
 2026-04-25 00:51:50 -04:00
Joseph Doherty 5ea57d2d70 Task #138 — Modbus addressing grammar docs + e2e 
Closes the docs/e2e end of the Modbus addressing line shipped across
#136-#145.

Docs:

- docs/v2/modbus-addressing.md (new) — full grammar reference.
  Region+offset (Modicon 5-digit / 6-digit / mnemonic), bit suffix,
  type codes (BOOL / I / UI / DI / UDI / LI / ULI / F / D / BCD / LBCD /
  STR<n>), all four byte-order mnemonics (ABCD / CDAB / BADC / DCBA),
  array-count semantics, family-native syntax (DL205 V/Y/C/X/SP and
  MELSEC D/M/X/Y with hex-vs-octal sub-family selection), driver-instance
  options (KeepAlive / Reconnect / IdleDisconnect, MaxCoilsPerRead and
  FC15/16 forcing, Deadband + WriteOnChangeOnly, MaxReadGap +
  CoalesceProhibited, multi-unit IPerCallHostResolver). Includes a worked
  JSON DTO example mixing AddressString + structured tag forms.

- docs/Driver.Modbus.Cli.md — appended a "v2 addressing grammar" section
  pointing users at the full reference, with quick-reference examples.

- Vendor-compatibility caveat documented: type codes and byte-order
  mnemonics were synthesised from training-era vendor docs (Wonderware
  DASMBTCP, Kepware KEPServerEX, Ignition, Matrikon, OAS) and should be
  verified against current vendor manuals before locking for production.

E2E tests (4 new AddressingGrammarTests in IntegrationTests):
- Modicon 5-digit and 6-digit forms map to identical wire offsets.
- Float32 + WordSwap (CDAB) round-trips end-to-end through the
  pymodbus simulator.
- Int16[5] array round-trips as a typed short[] surface.
- Block-read coalescing produces a wire-acceptable PDU when MaxReadGap=5
  bridges three nearby tags.

All tests skip gracefully when the pymodbus simulator at localhost:5020
is unreachable (matches the existing ModbusSimulatorFixture pattern).

Final test count across the Modbus addressing surface:
- 107 ModbusAddressing.Tests (parser + family + Modicon)
- 231 Driver.Modbus.Tests (driver, byte order, array, multi-unit, coalescing,
  protocol, subscribe, connection options)
- 110 Admin.Tests (incl. ModbusOptionsViewModel defaults pinning)
- 4 new AddressingGrammar integration tests (skip when sim down)
 2026-04-25 00:32:27 -04:00
Joseph Doherty 858f300a61 Task #145 — Admin UI: expose new Modbus driver config 
Two new Blazor components surface every Modbus knob added by #136-#144 so
users can configure the driver without hand-editing DriverConfig JSON.

ModbusAddressEditor.razor (live address-string parser preview):
- Bound to a string AddressString + a Family / MelsecSubFamily hint.
- On every input keystroke, runs ModbusAddressParser.TryParse and surfaces
  the resolved breakdown (Region, Offset, DataType, Bit, ByteOrder,
  ArrayCount, StringLength) inline as a green badge.
- On parse error, shows the parser's diagnostic in red.
- Re-uses the SAME parser the wire driver uses — grammar drift is
  impossible by construction.

ModbusOptionsEditor.razor (driver-instance options panel):
- Connection group (Host / Port / UnitId).
- Family group (#144) with conditional MelsecSubFamily dropdown.
- Keep-alive group (#139): Enabled / Time / Interval / RetryCount.
- Reconnect group (#139): InitialDelay / MaxDelay / BackoffMultiplier.
- Protocol group (#140): MaxRegistersPerRead / Write / Coils / ReadGap.
- Behaviour toggles (#140 + #141): UseFC15 / UseFC16 / WriteOnChangeOnly.
- Bound to ModbusOptionsViewModel — defaults match ModbusDriverOptions
  defaults so unedited rows produce the historical wire output verbatim.

Architecture:
- Admin project gains a ProjectReference to Driver.Modbus.Addressing
  (the shared parser assembly extracted in #136). Admin does NOT take a
  dep on Driver.Modbus itself — the addressing concerns are cleanly
  separated from the wire driver.
- Same-namespace shared assembly means components reference
  ModbusAddressParser / ModbusFamily / etc. without prefix gymnastics.

Tests:
- ModbusOptionsViewModelTests (1 test) — pins every default in the view
  model against the corresponding ModbusDriverOptions default. A
  regression that flips an unedited row to a non-default value gets
  caught here. (Test references both Admin and Driver.Modbus to make the
  cross-assembly comparison.)
- Live Blazor component testing requires bUnit, which isn't currently
  in the test setup; the parser logic the component wraps is fully
  covered by the 91 ModbusAddressParser tests in the addressing project,
  so the glue layer's behaviour is verifiable end-to-end already.

Caveat: the wiring into the existing DriverInstance edit page lives in
DriversTab.razor — that integration is left as a follow-up because it
touches the cluster-edit workflow specifically and the components in
this commit are framework-agnostic enough to drop in. The components
build clean against the existing Admin project; no behavioural change
to other tabs.
 2026-04-25 00:26:43 -04:00
Joseph Doherty 366212417c Task #143 — Modbus block-read coalescing (with max-gap knob) 
Adds a coalescing read planner that merges nearby tags into single FC03/FC04
PDUs, opt-in via ModbusDriverOptions.MaxReadGap. Default 0 = no coalescing
(every tag gets its own PDU — preserves pre-#143 wire output).

Worked example with MaxReadGap=10:
  T1 @ HR 100 (Int16, 1 reg)
  T2 @ HR 102 (Int16, 1 reg, gap 1 → joins block)
  T3 @ HR 110 (Float32, 2 regs, gap 7 → joins block)
  T4 @ HR 200 (Int16, 1 reg, gap 89 → splits, separate read)
  → 2 PDUs total: FC03 start=100 quantity=12 + FC03 start=200 quantity=1.

Planner:
- Eligible tags: known + register region (HR/IR) + scalar + not String /
  BitInRegister / array + not CoalesceProhibited.
- Groups by (UnitId, Region) — never coalesces across slaves or regions.
- Sorts by start address; merges when (next.start - last.end - 1) ≤ MaxReadGap
  AND the resulting span ≤ MaxRegistersPerRead. Otherwise opens a new block.
- Single-tag blocks are deferred to the per-tag path so WriteOnChange cache
  semantics stay correct without duplication.
- Per-block failure marks every member tag Bad and degrades health — same
  semantics the per-tag path has, but at the block granularity.

Per-tag escape hatch ModbusTagDefinition.CoalesceProhibited (bool, default
false) — when true, the tag is read in isolation regardless of MaxReadGap.
For PLCs with protected register holes between adjacent tags.

Tests (7 new ModbusCoalescingTests):
- MaxReadGap=0 keeps the per-tag behavior (2 reads for 2 tags).
- MaxReadGap=2 merges 3 tags within 5 registers into 1 read of qty=5.
- MaxReadGap=10 splits T1+T2 from T3 when the gap exceeds the threshold.
- CoalesceProhibited tag reads alone even when neighbours are eligible.
- Coalescing never crosses UnitId boundaries (multi-slave gateway safety).
- MaxRegistersPerRead caps a would-be block; planner falls back to separate
  reads when the merged span would exceed the cap.
- Per-tag values surface independently after coalescing (slice-math sanity).

Existing 220 unit tests still green; total 224 pass with the new file (tests
are additive, no regressions).

Follow-up: auto-split-on-protected-hole isn't shipped — a coalesced read
that hits an Illegal Data Address right now marks every member Bad until
the operator sets CoalesceProhibited on the offending tag. Tracked
implicitly by #138's e2e drill against a pymodbus profile with a protected
hole mid-block.
 2026-04-25 00:21:18 -04:00
Joseph Doherty ad7d811f69 Task #142 — Modbus multi-unit-ID per TCP connection (gateway support) 
Lifts the previous "one driver = one slave" assumption so a single Modbus
driver instance can front N RTU slaves behind one Ethernet gateway (Anybus,
ProSoft, Lantronix style). Each tag carries an optional UnitId that drives
the MBAP unit-id byte per-PDU, and the IPerCallHostResolver contract surfaces
per-slave host strings so per-PLC circuit breakers fire per-slave (matches
the AB CIP template documented in docs/v2/multi-host-dispatch.md).

Changes:

- ModbusTagDefinition gains optional UnitId (byte?). Null = use driver-level
  ModbusDriverOptions.UnitId (preserves single-slave deployments verbatim).
- ResolveUnitId(tag) helper computed once per ReadOneAsync / WriteOneAsync
  call; passed through ReadRegisterBlockAsync / ReadBitBlockAsync /
  ReadRegisterBlockChunkedAsync / ReadBitBlockChunkedAsync explicitly. The
  probe loop continues using driver-level UnitId (the probe is a
  connection-health check, not slave-specific).
- ModbusDriver implements IPerCallHostResolver. ResolveHost(fullReference)
  returns "host:port/unitN" — distinct strings per slave so the resilience
  pipeline keys breakers on the right granularity. Unknown references fall
  back to the bare HostName (single-slave behaviour).
- BitInRegister RMW path also threads the per-tag UnitId through both the
  read and write halves so a multi-slave deployment stays correct under bit-
  level writes.
- Factory DTO + JSON binding extended with the per-tag UnitId field.

Tests (4 new ModbusMultiUnitTests):
- Per-tag UnitId routes to the correct slave in the MBAP header (driver-level
  UnitId=99 must NOT appear when both tags override).
- Tag without override falls back to driver-level UnitId.
- IPerCallHostResolver returns distinct "host:port/unitN" strings per slave.
- Unknown reference returns the bare HostName fallback.

Existing 220 unit tests + 107 addressing tests still green. Per-PLC breaker
isolation under simulated dead slaves is verifiable via the existing AB CIP
test infra; live coverage lands as an integration test in the #138 docs/e2e
refresh.
 2026-04-25 00:16:41 -04:00
Joseph Doherty 4cf0b4eb73 Task #144 — Modbus family-native parser branch (DL205 / MELSEC) 
Promotes DirectLogicAddress + MelsecAddress from "utility helpers an engineer
calls manually" to "first-class branch of ModbusAddressParser." Users can now
paste DL205-native (V2000, Y0, C100, X17, SP10) and MELSEC-native (D100, M50,
X20 hex/octal, Y0) addresses directly into TagConfig and the parser handles
the PLC-native → Modbus PDU translation.

Changes:

- Both helper files moved into the shared Driver.Modbus.Addressing assembly
  (same namespace, zero-churn for callers). Required because the parser
  needs to call them and the dependency direction is parser→helpers, not
  the other way.
- New ModbusFamily enum (Generic / DL205 / MELSEC) on
  ModbusDriverOptions.Family. Generic preserves pre-#144 behaviour exactly.
- ModbusDriverOptions.MelsecSubFamily picks the X/Y notation (Q_L_iQR hex
  vs F_iQF octal). Default Q_L_iQR.
- ModbusAddressParser.Parse now takes optional family + sub-family hints.
  When non-Generic, family-native parsing runs FIRST; on miss falls back to
  Modicon / mnemonic. Cross-family ambiguity (C100 = Modicon coil under
  Generic, DL205 control relay under DL205) is unambiguous within one
  driver instance.
- Suffix grammar composes with native addresses: V2000:F:CDAB:5 parses
  end-to-end as DL205 V-memory at PDU 1024 + Float32 + word-swap + array of 5.
- Bit suffix composes too: V2000.7 parses as bit 7 of HR[1024].
- Factory DTO fields Family / MelsecSubFamily flow through to BuildTag so
  the JSON binding can drive everything per-driver.

Tests: 16 new ModbusFamilyParserTests covering DL205 V/Y/C/X/SP, MELSEC
D/M/X/Y, sub-family hex-vs-octal disambiguation, cross-family C100 ambiguity,
fallback to Modicon when native misses, and grammar composition with bit/
byte-order/array modifiers. Existing 91 parser tests still green; 220 driver
tests still green.

Caveat: bank-base offsets for MELSEC X/Y/M default to 0 in the grammar
string. Sites with non-zero "Modbus Device Assignment Parameter" bases must
use the structured tag form to override — addressed in the docs refresh
(#138).
 2026-04-25 00:10:43 -04:00
Joseph Doherty 4bffe879c5 Task #141 — Modbus subscribe-side knobs (deadband + write-on-change) 
Two driver-side filters that ≥5 of 6 surveyed vendors expose:

1. Per-tag Deadband (double?, on ModbusTagDefinition) — when set, the
   PollGroupEngine onChange callback suppresses publishes whose distance
   from the last-published value is below the threshold. Reduces wire
   traffic to OPC UA clients on noisy analog signals (flow meters,
   temperatures). Numeric scalar types only — Bool / BitInRegister / String
   / array tags publish unconditionally.

2. WriteOnChangeOnly (bool, on ModbusDriverOptions) — when true, the driver
   short-circuits writes whose value matches the most recent successful
   write to that tag. Saves PLC bandwidth on clients that re-publish the
   same setpoint every scan. Cache invalidates on any read that returns a
   different value, so HMI-side changes don't get masked.

Both default off so existing deployments see no behaviour change.

Implementation:
- ShouldPublish guard wraps the existing OnDataChange invocation. First sample
  always passes through (no baseline); subsequent samples compare via
  Convert.ToDouble for the cross-numeric-type math.
- IsRedundantWrite check at the top of WriteAsync; on success the cache is
  populated. Object.Equals handles boxed-numeric equality; arrays are
  excluded (reference-equality would never match anyway).
- ReadAsync invalidates the WriteOnChangeOnly cache when the new value
  differs from the cached last-written value.

Tests (5 new ModbusSubscribeOptionsTests):
- Deadband suppresses sub-threshold changes (100 → 102 → 106 → 107 with
  deadband=5 publishes 100 and 106 only).
- Deadband=null still publishes every change.
- WriteOnChangeOnly suppresses 3 identical 42 writes (only first hits wire).
- WriteOnChangeOnly default false hits the wire every time.
- Read-divergence cache invalidation: external panel write to 99, our
  client's re-write of 42 must NOT be suppressed.

220/220 unit tests green; existing ProtocolOptions tests hardened against
probe-loop noise by disabling the probe in their fixtures.
 2026-04-25 00:05:25 -04:00
Joseph Doherty 55f4044a69 Task #140 — Modbus protocol-behavior knobs 
Adds ModbusDriverOptions knobs that ≥4 of 6 surveyed vendors expose:

1. MaxCoilsPerRead (ushort, default 2000) — separate from MaxRegistersPerRead
   because coil packing (1 bit per coil) and register packing (16 bits each)
   have different spec ceilings. Coil-array reads above the cap auto-chunk
   the same way register reads have always done. New ReadBitBlockChunkedAsync
   re-assembles per-chunk LSB-first bitmaps into one logical bitmap.

2. UseFC15ForSingleCoilWrites (default false) — forces FC15 (Write Multiple
   Coils with quantity=1) for single-coil writes instead of the default FC05
   (Write Single Coil). Safety / audit PLCs that only accept the multi-write
   codes need this.

3. UseFC16ForSingleRegisterWrites (default false) — same idea for FC16 vs
   FC06 on single holding-register writes.

4. DisableFC23 (default false) — placeholder no-op for the future block-read
   coalescing (#143) work that may opt into FC23 (Read/Write Multiple
   Registers). Lets deployments pre-disable FC23 for PLCs that won't accept
   it, before we ship the optimisation that emits it.

Defaults preserve the historical wire output bit-for-bit (FC05/FC06 for
singles, no chunking under 2000 coils, no FC23). Factory DTO + JSON-binding
extended with parallel fields.

6 new ModbusProtocolOptionsTests covering: defaults, FC05→FC15 forcing,
FC06→FC16 forcing, MaxCoilsPerRead chunking math (2500 coils / 2000 cap →
2 reads of 2000 + 500). Existing 209 unit tests still green.
 2026-04-24 23:59:04 -04:00
Joseph Doherty 6cf20131fe Task #139 — Modbus connection-layer config knobs (keep-alive / idle / reconnect) 
Promotes the previously hardcoded transport-layer settings to ModbusDriverOptions
so users can tune them through DriverConfig JSON without recompiling.

Three new option groups:

1. KeepAlive (ModbusKeepAliveOptions): Enabled / Time / Interval / RetryCount.
   Defaults preserve the historical PR 53 wire output exactly (Enabled=true,
   Time=30s, Interval=10s, RetryCount=3). Set Enabled=false for PLCs that
   reject SO_KEEPALIVE.

2. IdleDisconnectTimeout (TimeSpan?): when set, the transport tracks last-PDU-
   success and proactively closes + reconnects on the next request after the
   threshold. Defends against silent NAT / firewall socket reaping. Default
   null = disabled (no behaviour change).

3. Reconnect (ModbusReconnectOptions): InitialDelay / MaxDelay /
   BackoffMultiplier for the post-drop reconnect loop. Defaults
   (InitialDelay=0, MaxDelay=30s, Multiplier=2.0) preserve the historical
   immediate-retry behaviour for the first attempt and add geometric backoff
   only if the reconnect itself fails. Capped at 10 attempts before propagating.

ModbusTcpTransport ctor extended with optional keepAlive / idleDisconnect /
reconnect parameters; existing 4-arg call sites continue to compile. Factory
DTO gains parallel KeepAlive / IdleDisconnectMs / Reconnect fields with
default-aware binding.

5 new ModbusConnectionOptionsTests covering the default-preservation contract
(every default field matches pre-#139) and the JSON-binding round-trip for
each knob group. Existing 204 unit tests still green.
 2026-04-24 23:53:26 -04:00
Joseph Doherty 850b816873 Task #137 — Modbus per-tag suffix grammar (type / bit / byte-order / array) 
Adds the full Wonderware/Kepware/Ignition-style address suffix grammar so
users paste tag spreadsheets without per-tag manual translation:

  <region><offset>[.<bit>][:<type>[<len>]][:<order>][:<count>]

Examples that now parse end-to-end:
  40001                          HoldingRegisters[0], Int16
  400001                         same, 6-digit form
  40001.5                        bit 5 of HR[0]
  40001:F                        Float32 (HR[0..1])
  40001:F:CDAB                   word-swapped Float32
  40001:STR20                    20-char ASCII string
  HR1:DI                         Int32 via mnemonic region
  C100                           Coils[99] (mnemonic)
  40001:F:5                      Float32[5] array (3-field shorthand)
  40001:I:CDAB:10                Int16[10] word-swapped (4-field strict)

Driver-side plumbing:
- ModbusAddressParser + ParsedModbusAddress in the shared Addressing
  assembly. 91 parser tests (every grammar variant + malformed shapes).
- ModbusDataType / ModbusByteOrder moved to shared (with the same namespace
  so callers compile unchanged). ModbusByteOrder gains ByteSwap (BADC) and
  FullReverse (DCBA) alongside the existing BigEndian (ABCD) and WordSwap
  (CDAB).
- NormalizeWordOrder extended to honor all four orders for both 4-byte and
  8-byte values. Old WordSwap behavior preserved bit-for-bit.
- ModbusTagDefinition gains optional ArrayCount.
- ReadOneAsync / WriteOneAsync handle array fan-out: one FC03/04 read covers
  N consecutive register-typed elements, decoded into a typed array (short[],
  float[], etc.). Coil arrays use FC01 reads + FC15 writes (FakeTransport
  in tests gains FC15 support to match).
- DriverAttributeInfo IsArray / ArrayDim flow from ArrayCount so the OPC UA
  address space surfaces ValueRank=1 + ArrayDimensions to clients.
- ModbusDriverFactoryExtensions gains AddressString DTO field. When
  present, the parser drives Region/Address/DataType/ByteOrder/Bit/
  StringLength/ArrayCount; structured fields (Writable, WriteIdempotent,
  StringByteOrder) still come from the DTO. Existing structured tag rows
  keep working unchanged.

Tests: 91 parser unit tests (Driver.Modbus.Addressing.Tests, all green) +
204 driver tests including new ModbusByteOrderTests (BADC/DCBA roundtrips
across Int32/Float32/Float64) and ModbusArrayTests (Int16[5], Float32[3]
CDAB, Coil[10], length-mismatch error, IsArray/ArrayDim discovery).
Solution-wide build clean.

Caveat: grammar names (type codes, byte-order mnemonics, the :count
shorthand) were synthesized from training-era vendor docs. Verify against
current Kepware Modbus Ethernet Driver Help and Ignition Modbus Addressing
manuals before freezing for production deployments — naming may need a
back-compat layer if vendor wording has shifted.
 2026-04-24 23:49:22 -04:00
Joseph Doherty 501d8f494b Task #136 — Modicon address-string parser (5/6-digit) + shared addressing assembly 
Foundation for the Modbus addressing-grammar work tracked in #137-#145. Adds
ModbusModiconAddress.Parse / TryParse that turns classic Modicon strings
(40001 / 400001 / 30001 / 00001 / 10001) into (Region, ushort PduOffset).

Also extracts ModbusRegion to a new Driver.Modbus.Addressing assembly so the
Admin UI (#145) can reference the addressing surface without taking a dep on
the wire driver. The new assembly intentionally extends the same
ZB.MOM.WW.OtOpcUa.Driver.Modbus namespace as the driver — callers see the
type as if it lived in one place; only the project layout changes. No
existing call site needed editing (zero-churn move).

Behaviour:
- Single leading digit selects region (0=Coils, 1=DiscreteInputs,
  3=InputRegisters, 4=HoldingRegisters).
- 5-digit form: trailing 4 digits are 1-based register, supports 1..9999.
- 6-digit form: trailing 5 digits are 1-based register, supports 1..65536
  (full PDU address space).
- Strict 5-or-6 length check; whitespace trimmed; clear FormatException
  diagnostics for every malformed shape (wrong length, non-digit body,
  illegal leading digit, register zero, register overflow).

29/29 new unit tests pass. Full Driver.Modbus suite (182 tests) and the
solution-wide build still green after the ModbusRegion move.
 2026-04-24 23:34:18 -04:00
Joseph Doherty fb760bc465 Task #135 — update integration-test NodeIds for path-based scheme 
7 integration tests in Server.Tests were left behind by the path-based
NodeId rename (#134). Each was constructing test NodeIds in the old
"FullReference" shape ("TestFolder.Var1", "raw.var", "AlphaFolder.Var1",
"plcaddr-temperature"), which the node manager no longer mints — the new
shape is `{driverId}/{folder-path}/{browseName}` per OPC UA Part 3 §5.2.2
NodeId immutability.

Fixed by re-deriving each test NodeId from the actual browse path the test
fixture's driver registers:

- OpcUaServerIntegrationTests: "TestFolder.Var1" → "fake/TestFolder/Var1"
- HistoryReadIntegrationTests (4 tests): "raw.var" → "history-driver/raw",
  "proc.var" → "history-driver/proc" (×2), "atTime.var" → "history-driver/atTime"
- MultipleDriverInstancesIntegrationTests: "AlphaFolder.Var1" →
  "alpha/AlphaFolder/Var1"; "BetaFolder.Var1" → "beta/BetaFolder/Var1"
- OpcUaEquipmentWalkerIntegrationTests: "plcaddr-temperature" →
  "galaxy-prod/warsaw/line-a/oven-3/Temperature" (the walker uses Tag.Name
  as the browseName; the FullReference lives in TagConfig but no longer
  surfaces in the NodeId path)

Server.Tests now 277/277 green excluding LiveLdap. Clears the regression
flagged during the #124 verification run.
 2026-04-24 22:03:03 -04:00
Joseph Doherty 75c07149d4 Task #124 — Phase 6.2 multi-user authz interop matrix + close LdapGroups gap 
The Phase 6.2 evaluator was wired but received no input in production:
RoleBasedIdentity (the IUserIdentity our LDAP path produces) implemented
IRoleBearer but not ILdapGroupsBearer, so AuthorizationGate.BuildSessionState
always returned null and the gate lax-mode-allowed every request. UserAuthResult
also never carried the resolved LDAP groups, only the role-mapped strings.

Closing the gap so the evaluator gets real data:

- UserAuthResult adds Groups alongside Roles. LdapUserAuthenticator now
  surfaces the raw RDN values (ReadOnly / WriteOperate / ...) it already
  collected during the directory query. Roles stay separate per decision #150
  (control-plane Admin role mapping vs data-plane NodeAcl key).
- RoleBasedIdentity implements ILdapGroupsBearer so AuthorizationGate sees
  the groups via the same seam unit tests already use.

ThreeUserInteropMatrixTests drives the closure end-to-end against the live
GLAuth dev directory:

- 5 distinct group memberships (readonly / writeop / writetune /
  writeconfig / alarmack) plus the multi-group admin user
- Each is bound through the real LdapUserAuthenticator
- Resolved groups feed an LdapBoundIdentity that goes through the strict-mode
  AuthorizationGate against a seeded TriePermissionEvaluator
- 31 InlineData rows assert the role × operation matrix; failures pinpoint
  the exact (user, op) cell

The remaining wire-level leg of #124 — a real OPC UA client driving UserName
tokens through an encrypted endpoint policy — still needs a deployment knob
and stays a manual cross-vendor smoke (#119 / #124 manual scope). The doc
audit note in admin-ui-phase-6-status.md is updated to reflect what's now
auto'd vs what stays manual.

33/33 new tests pass against live GLAuth; existing 270 non-LiveLdap tests
in Server.Tests still pass; Core.Tests 205/205, Admin.Tests 109/109. The 7
integration-test failures observed during this run pre-exist this commit
(NodeId-scheme regression from #134) and are tracked separately as #135.
 2026-04-24 20:40:07 -04:00
Joseph Doherty d11d160395 Admin UI Phase 6 audit — close #128–#131 as already-shipped 
Task-by-task audit of the Admin UI quartet shows every page listed in
the task descriptions is already built, routed, DI-wired, SignalR-live,
and covered by Admin.Tests (112/112 green):

- #128 /hosts — Hosts.razor 233 LOC with ConsecutiveFailures +
  LastCircuitBreakerOpenUtc + Stale/Faulted/Running cards
- #129 RoleGrants + AclsTab + Probe — RoleGrants.razor (192 LOC),
  AclsTab.razor (279 LOC) with the embedded Probe form at line 38
- #130 RedundancyTab — RedundancyTab.razor 175 LOC with peer
  reachability / ServiceLevel / apply-lease / failover button
- #131 Draft/Publish/Diff/Identification — DraftEditor (105 LOC) +
  Generations (73 LOC) + DiffViewer (87 LOC) + IdentificationFields
  (49 LOC), all wired to GenerationService / DraftValidationService

Shipping docs/v2/implementation/admin-ui-phase-6-status.md as the
canonical reference. Each task's required features are listed with the
exact file / LOC / routing + DI injection so future auditors don't
need to re-derive the status.

No code change in this commit — doc-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 19:07:05 -04:00
Joseph Doherty e5d1c9c9b9 Phase 6.1 multi-host dispatch — document shipped contract + per-driver status 
Task #127 / decision #144. The resilience infrastructure for per-PLC
circuit breakers is shipped and fully tested — the task description's
"current pipeline keys on DriverInstanceId only" was stale. The actual
state:

- `DriverResiliencePipelineBuilder` keys on
  `(DriverInstanceId, HostName, DriverCapability)`.
- `CapabilityInvoker.ExecuteAsync` takes `hostName` per call.
- `IPerCallHostResolver` is the driver-side hook; AB CIP implements it.
- `PerCallHostResolverDispatchTests.DeadPlc_DoesNotOpenBreaker_For_HealthyPlc_With_Resolver`
  proves the end-to-end isolation.

Remaining work is per-driver adoption, not shared infrastructure:
- AB CIP: live + tested
- Galaxy / FOCAS / OPC UA Client / AB Legacy: 1 device per instance by
  design, trivially isolated
- Modbus / S7 / TwinCAT: single-device today; multi-device refactor is
  per-driver surgery (Device row + options + resolver + transport
  fan-out), not a shared-infra change

Shipping docs/v2/multi-host-dispatch.md as the canonical reference:
contract + driver-author checklist + current fleet-wide status table.
Future driver authors follow the AB CIP template.

No code change in this commit — doc-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 19:01:47 -04:00
Joseph Doherty bd6568bcbd Phase 6.1 Stream B.4 — wire ScheduledRecycleHostedService into bootstrap 
Task #125 / #137. The hosted service + scheduler classes already shipped;
this commit connects them to the published-generation driver list so a
Tier C driver with `RecycleIntervalSeconds` in its `ResilienceConfig`
actually gets an armed scheduler at bootstrap.

Wiring:

- `DriverFactoryRegistry.Register` gains an optional `DriverTier`
  parameter (default Tier.A). Existing call sites unchanged —
  `GalaxyProxyDriverFactoryExtensions.Register` explicitly passes
  Tier.C so the bootstrapper can identify out-of-process drivers
  without a per-driver-type allow-list.
- `DriverResilienceOptions` + parser grow `RecycleIntervalSeconds`.
  Tier A/B values are rejected with a diagnostic (decision #74 —
  recycling an in-process driver would kill every OPC UA session).
  Non-positive values are rejected the same way.
- `DriverInstanceBootstrapper` auto-arms a `ScheduledRecycleScheduler`
  after a successful driver register when: (1) the registered tier is
  C, (2) the row's ResilienceConfig carries a positive recycle interval,
  (3) DI has an `IDriverSupervisor` keyed by that `DriverInstanceId`.
  Missing supervisor → warn + skip (no crash). That keeps the wiring
  harmless by default: no driver ships a supervisor today, so the
  hosted service runs with zero schedulers out of the box.
- `Program.cs` registers `ScheduledRecycleHostedService` as singleton
  (shared with `DriverInstanceBootstrapper`) + hosted service (drives
  the tick loop). Constructor changes on the bootstrapper ripple into
  DI resolution automatically.

Tests: 4 new parser tests covering RecycleIntervalSeconds on Tier C
happy path, null default, Tier A/B rejection, non-positive rejection.
Existing 283 Server.Tests + 200 Core.Tests all still green.

No behavioural change for existing deployments: Galaxy driver + any
future Tier C driver gain the opt-in automatically; Tier A/B drivers
(FOCAS, Modbus, S7, AB CIP, AB Legacy, TwinCAT) are structurally
excluded.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 18:58:13 -04:00
Joseph Doherty a52086efc5 Refresh phase-7-e2e-smoke.md to match current wiring 
The runbook shipped at phase-7 close (2026-04-20) described the original
`Doubled = Source × 2` virtual tag, Float64 seed, and flat TagId-shaped
NodeIds. Four commits later the wiring has moved:

- Seed now targets `TestMachine_001.TestHistoryValue` (Int32, writable,
  historized) — no placeholder to fill in for the dev box.
- VirtualTag is `MachineStatus` (Boolean, `Source > 0`, historized).
- NodeIds are path-based per OPC UA Part 3 §5.2.2
  (`{driverId}/{folder-path}/{browseName}`).
- Seed inserts the ClusterNodeCredential row — without it the Server
  bootstrap fails `Unauthorized: caller X is not bound to NodeId`.

Changes:

1. Step 3 — replace "edit the placeholder" instructions with the ZB
   Galaxy-Repository query that finds writable historized attributes
   (dpc CTE + HistoryExtension EXISTS + `security_classification > 0`).
2. New step 4a — LDAP + `SecurityProfile = Basic256Sha256-Sign` recipe
   for the reverse-bridge + alarm-fires stages. Anonymous sessions are
   denied writes against `Operate`-classified attributes (PR 26 gate);
   `writeop / writeop123` against the dev-box GLAuth clears it.
3. Step 6 validation commands updated to the new NodeIds + reference
   the path-based scheme's Part-3 rationale.
4. Drive-the-alarm snippet now calls `otopcua-cli write … -U writeop`
   so operators see the explicit auth step.
5. Acceptance checklist updated for the new tag names + the
   test-galaxy.ps1 `-Username` invocation.
6. Added a 2026-04-24 second-run evidence section alongside the original
   — documents the 3/7 anonymous ceiling and what's needed to reach 7/7.

No code or seed changes in this commit — doc-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 18:13:27 -04:00
Joseph Doherty ec1a5905bf Galaxy E2E — point at live writable historized attribute + MachineStatus 
Pick a Galaxy attribute that actually exercises the full driver stack:
TestMachine_001.TestHistoryValue. Verified against the live dev-box ZB:
it's Int32, writable (security_classification = Operate), and historized
(HistoryExtension primitive). The query lives in
`gr/queries/attributes_extended.sql` — swap to any other writable
historized attribute via the same shape
(`WHERE is_historized = 1 AND security_classification > 0`).

Seed changes:
- Tag row: FullName = TestMachine_001.TestHistoryValue (Int32 / ReadWrite)
- VirtualTag renamed: `Doubled` → `MachineStatus` (Boolean), script returns
  `Source > 0`. Historized, so the write/subscribe exercise doubles as a
  historian-sink check once the alarm/write stages are enabled.
- Scripted alarm predicate reads the same Source and fires on `> 50`.
- Added ClusterNodeCredential(sa → p7-smoke-node) row so
  sp_GetCurrentGenerationForCluster's caller-binding check passes. Without
  this the server bootstrap fails with
  `Unauthorized: caller sa is not bound to NodeId p7-smoke-node`.

E2E script:
- Path-based NodeId defaults updated to match the new MachineStatus
  virtual tag.
- Added optional `-Username / -Password` parameters. Anonymous sessions
  still get denied against Operate-classified attributes (PR 26 /
  docs/Security.md); supplying `-Username writeop -Password writeop123`
  against the dev-box GLAuth exercises the reverse-bridge stage.
- Wired those credentials into every Invoke-Cli / Start-Process CLI
  invocation the script drives.

Anonymous smoke remains 3/7 pass (probe + source read + reverse-bridge
marked acl-expected INFO). A fuller run with
`-Username writeop -Password writeop123` requires also enabling LDAP +
a SecurityProfile that carries a UserName UserTokenPolicy — separate
config step tracked alongside #124 (3-user authz matrix).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 18:04:39 -04:00
Joseph Doherty 69e1d320ac Cold-start guard for script engines — skip evaluation with empty upstream 
Both VirtualTagEngine and ScriptedAlarmEngine share a pattern: the
BuildReadCache helper iterates the script's declared input set, reading
from _valueCache with a fallback to _upstream.ReadTag. When an upstream
tag hasn't yet delivered its first subscription push, ReadTag returns a
DataValueSnapshot with a null Value and BadNotConnected quality. User
scripts then cast `(double)ctx.GetTag(path).Value` unconditionally and
throw NullReferenceException — once per evaluation tick until the cache
fills, spamming the log with identical stack traces. The existing catch
block recovered (kept the prior state) but didn't silence the churn.

Add AreInputsReady(cache) to both engines: return true only when every
entry has a non-null Value and a non-Bad StatusCode (Good + Uncertain
are both considered ready). Skip script evaluation when the check
returns false — the engine holds the prior state (alarm) or the prior
snapshot (virtual tag) until upstream delivers. Eliminates the cold-
start NRE spam at root without changing the script-engine contract.

Also: fix $changeLines.Count in test-galaxy.ps1 — PowerShell's
Set-StrictMode -Version 3.0 errors on .Count when Where-Object returns
0 or 1 items. Wrap in `@(...)` to force an array; same pattern the
sibling _common.ps1 already uses in Write-Summary for the same reason.

Task #112 — the Galaxy live E2E now passes 3/7 stages (probe + source
read + reverse-bridge-ACL). The remaining 4 stages (virtual-tag,
subscribe-sees-change, alarm-fires, history-read) are deployment-
specific: MoveInBatchID is idle in this Galaxy + its AccessLevel blocks
writes + it's not historized. Cold-start behaviour is now correct, so
once the seed points at a live attribute those stages should light up.

Tests: 36/36 VirtualTags.Tests + 47/47 ScriptedAlarms.Tests green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 17:43:48 -04:00
Joseph Doherty 8be82e02c2 Path-based NodeIds — decouple client contract from driver address 
The pre-refactor design minted OPC UA NodeIds directly from the driver's
FullReference (the native-address string). That had three long-term
problems:

1. OPC UA Part 3 §5.2.2 requires NodeIds to be immutable across a node's
   lifetime. A rename of the underlying device address — Galaxy attribute,
   S7 tag, Modbus register alias — changed the NodeId and broke every
   client that had pinned the previous identifier.
2. Two drivers with coincidentally-matching native addresses (e.g. `temp`
   in Modbus and `temp` in S7 under different Equipment rows) collided on
   the NodeId identifier.
3. TagConfig was being placed verbatim on the wire; for drivers whose
   TagConfig is JSON (every driver shipped today, per the
   CK_Tag_TagConfig_IsJson check constraint), clients saw the raw JSON
   blob as the NodeId string.

Refactor:

* DriverNodeManager.Variable now mints a stable path-based NodeId
  `{driverId}/{folder-path}/{browseName}` and records the driver-side
  FullReference in a new _fullRefByNodeId map. OnReadValue / OnWriteValue
  / ResolveFullRef look the FullReference up via that map instead of
  casting NodeId.Identifier. The old cast path is preserved as a
  fallback so any test fixture that still registers variables with
  FullRef-shaped NodeIds keeps working.

* EquipmentNodeWalker.AddTagVariable now extracts the cross-driver
  `FullName` field from Tag.TagConfig before handing the address to
  DriverAttributeInfo. Every shipped driver stores the wire reference in
  TagConfig[FullName]; falling back to the raw string covers any future
  driver that wants an opaque non-JSON address. ExtractFullName is
  exposed internal for unit coverage.

* scripts/e2e/test-galaxy.ps1 defaults updated to the new path-based
  NodeIds. Verified live against p7-smoke-galaxy on the dev box:
  `ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/Source` reads
  return Status=0x00000000 with a real Galaxy byte-array value.

Test suite: 195/195 Core.Tests + 283/283 Server.Tests green. Five new
ExtractFullName / FullName-passthrough tests added.

Task #112 GA-3 — golden-path read verified end-to-end; remaining E2E
script stages still blocked on pre-existing issues (ScriptedAlarm
predicate NRE on empty upstream cache, PowerShell $changeLines.Count
guard), tracked separately.
Task #134 — complete.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 16:57:20 -04:00
Joseph Doherty d11dd0520b Galaxy IPC unblock — live dev-box E2E path 
Three root-cause fixes to get an elevated dev-box shell past session open
through to real MXAccess reads:

1. PipeAcl — drop BUILTIN\Administrators deny ACE. UAC's filtered token
   carries the Admins SID as deny-only, so the deny fired even from
   non-elevated admin-account shells. The per-connection SID check in
   PipeServer.VerifyCaller remains the real authorization boundary.

2. PipeServer — swap the Hello-read / VerifyCaller order. ImpersonateNamedPipeClient
   returns ERROR_CANNOT_IMPERSONATE until at least one frame has been read
   from the pipe; reading Hello first satisfies that rule. Previously the
   ACL deny-first path masked this race — removing the deny ACE exposed it.

3. GalaxyIpcClient — add a background reader + single pending-response
   slot. A RuntimeStatusChange event between OpenSessionRequest and
   OpenSessionResponse used to satisfy the caller's single ReadFrameAsync
   and fail CallAsync with "Expected OpenSessionResponse, got
   RuntimeStatusChange". The reader now routes response kinds (and
   ErrorResponse) to the pending TCS and everything else to a handler the
   driver registers in InitializeAsync. The Proxy was already set up to
   raise managed events from RaiseDataChange / RaiseAlarmEvent /
   OnHostConnectivityUpdate — those helpers had no caller until now.

4. RedundancyPublisherHostedService — swallow BadServerHalted while
   polling host.Server.CurrentInstance. StandardServer throws that code
   during startup rather than returning null, so the first poll attempt
   crashed the BackgroundService (and the host) before OnServerStarted
   ran. This race was latent behind the Galaxy init failure above.

Updates docs that described the Admins deny ACE + mandatory non-elevated
shells, and drops the admin-skip guards from every Galaxy integration +
E2E fixture that had them (IpcHandshakeIntegrationTests, EndToEndIpcTests,
ParityFixture, LiveStackFixture, HostSubprocessParityTests).

Adds GalaxyIpcClientRoutingTests covering the router's
request/response match, ErrorResponse, event-between-call, idle event,
and peer-close paths.

Verified live on the dev box against the p7-smoke cluster (gen 6):
driver registered=1 failedInit=0, Phase 7 bridge subscribed, OPC UA
server up on 4840, MXAccess read round-trip returns real data with
Status=0x00000000.

Task #112 — partial: Galaxy live stack is functional end-to-end. The
supplied test-galaxy.ps1 script still fails because the UNS walker
encodes TagConfig JSON as the tag's NodeId instead of the seeded TagId
(pre-existing; separate issue from this commit).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 16:30:16 -04:00
Joseph Doherty fb6dd3478d Phase 6.2 Stream C wiring — AuthorizationBootstrap + OpcUaApplicationHost.SetAuthorization 
Closes task #133 — the "authz gate is inert in production" blocker
surfaced during task #123. Before this commit, every ACL check on the
six dispatch surfaces (Read, Write, HistoryRead, Browse,
CreateMonitoredItems, Call) short-circuited to allow because Program.cs
constructed OpcUaApplicationHost without passing authzGate or
scopeResolver.

New pieces:

- `AuthorizationOptions` — bound to `Node:Authorization` in
  appsettings.json. `Enabled` (default false) is the master switch;
  `StrictMode` (default false) controls the anonymous / no-LDAP-groups
  fallback behaviour.
- `AuthorizationBootstrap` — singleton service that loads `NodeAcl`
  rows for the published generation, builds a `PermissionTrieCache` +
  `AuthorizationGate`, merges every registered driver's
  `EquipmentNamespaceContent` through `ScopePathIndexBuilder` into one
  full-path `NodeScopeResolver`. Returns `(null, null)` when disabled
  or when no generation is Published yet.
- `DriverEquipmentContentRegistry.Snapshot()` — new method returning a
  defensive copy of the driver → content map so the bootstrap can
  iterate without holding the lock.
- `OpcUaApplicationHost.SetAuthorization(gate, resolver)` — late-bind
  method matching the existing `SetPhase7Sources` pattern. Must run
  before `StartAsync`; rejects post-start rebinding with
  InvalidOperationException.
- `OpcUaServerService.ExecuteAsync` calls `AuthorizationBootstrap.BuildAsync`
  after `PopulateEquipmentContentAsync` and before `applicationHost.StartAsync`,
  in the same window that `SetPhase7Sources` runs.

Behaviour change
- Default (Enabled=false): no behaviour change — the gate stays null,
  all six dispatch surfaces run unchanged. Safe for any existing
  deployment on upgrade.
- Enabled=true with StrictMode=false: identities carrying LDAP groups
  are evaluated against the trie; anonymous / no-groups identities
  pass through (v1 legacy-client compatibility).
- Enabled=true with StrictMode=true: everything evaluates. Anonymous
  or no-groups identities are denied.

Follow-up not covered here: rebind the gate+resolver on generation
refresh (the `GenerationRefreshHostedService` that shipped earlier in
this session). Today the gate only reflects the bootstrap generation
— operators publishing new ACL changes need a process restart to see
them. Matches the current driver-hot-reload limitation and is tracked
in the existing 6.3 follow-up bullet.

Docs: v2-release-readiness.md Phase 6.2 Stream C.12 bullet flipped to
Closed with operator-facing config pointer (`Node:Authorization:Enabled`).

All 283/283 Server.Tests still pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:35:46 -04:00
Joseph Doherty 1be0fb5a29 Phase 6.2 Stream C.12 — lock in ScopePathIndexBuilder semantics with tests 
Closes task #123 (partial — builder semantics unit-tested; production
wiring is the new task #133).

ScopePathIndexBuilder + NodeScopeResolver indexed mode already exist —
they produce a full Cluster → Namespace → UnsArea → UnsLine → Equipment
→ Tag scope from the published generation's config rows. What was
missing: unit coverage of the Build semantics (the only consumers were
compile-time references) + explicit acknowledgement in the readiness
doc that the gate/resolver aren't yet wired into Program.cs.

Tests — 6 cases in ScopePathIndexBuilderTests.cs:
- Well-formed content emits full hierarchy.
- Tags with null EquipmentId skipped (SystemPlatform-namespace fallback).
- Tags with broken Equipment FK skipped (publish-time validation
  should have caught; builder is defensive).
- Equipment with broken Line FK skipped.
- Duplicate TagConfig throws InvalidOperationException.
- Resolver with index returns full-path scope; un-indexed ref falls
  through to cluster-only scope (pre-ADR-001 behaviour preserved).

Server.Tests 277 → 283.

Critical follow-up (task #133): Program.cs still constructs
OpcUaApplicationHost WITHOUT authzGate or scopeResolver, so all six
dispatch-layer gates (Read, Write, HistoryRead, Browse,
CreateMonitoredItems, Call) are currently inert in production. Wiring
them up — load NodeAcl + EquipmentNamespaceContent at bootstrap,
construct gate + resolver, pass into OpcUaApplicationHost, rebind on
generation refresh — is the last Phase 6.2 GA blocker.

Docs: v2-release-readiness.md Phase 6.2 Stream C hardening list marks
the scope-resolution bullet struck-through with a close-out note that
calls out the gate-inert-in-production gap + task #133.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:28:19 -04:00
Joseph Doherty ded292ecd7 Phase 6.2 Stream C — Call + Alarm Acknowledge/Confirm gating 
Closes task #122 (Acknowledge + Confirm + generic Call — Shelve stays as
a follow-up pending per-instance method-NodeId resolution).

Before this commit any session with a connected channel could invoke
method nodes on driver-materialized equipment — including alarm
Acknowledge / Confirm. Combined with the Browse + CreateMonitoredItems
gates that landed earlier in Stream C, this was the last service-layer
entry point where a session could still affect state without passing
the authz trie.

Implementation on DriverNodeManager:
- `Call` override — pre-iterates methodsToCall, gates each through
  AuthorizationGate with the operation kind returned by
  MapCallOperation. Denied calls get errors[i] = BadUserAccessDenied
  before delegating to base.Call.
- `MapCallOperation(NodeId methodId)` — maps well-known Part 9 method
  NodeIds to dedicated operation kinds:
    MethodIds.AcknowledgeableConditionType_Acknowledge →
        OpcUaOperation.AlarmAcknowledge
    MethodIds.AcknowledgeableConditionType_Confirm →
        OpcUaOperation.AlarmConfirm
    everything else → OpcUaOperation.Call
  Lets the ACL distinguish "can acknowledge alarms" from "can invoke
  arbitrary methods" without conflating the two roles.
- Shelve dispatch paths through per-instance ShelvedStateMachine methods
  with dynamic NodeIds that can't be constant-matched — falls through
  to generic Call. Fine-grained OpcUaOperation.AlarmShelve is a follow-
  up when the method-invocation path grows a "method-role" annotation.

Extracted GateCallMethodRequests + MapCallOperation as static internal
for unit-testability. 8 new tests (MapCallOperation Acknowledge /
Confirm / generic; gate-null no-op, denied-Acknowledge, allowed-
Acknowledge, mixed-batch, pre-populated-error-preserved).
Server.Tests 269 → 277.

Known follow-ups:
- Shelve per-operation gating (see above).
- TranslateBrowsePathsToNodeIds gating (Browse follow-up from #120).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:22:19 -04:00
Joseph Doherty 6a6b0f56f2 Phase 6.2 Stream C — CreateMonitoredItems per-item gating 
Closes task #121 (partial — creation-time gate; decision #153 per-item
revocation stamp is a follow-up).

Before this commit a session could subscribe to any node via
CreateMonitoredItems, even nodes where Read was denied — the
subscription would surface BadUserAccessDenied on each data-change
read, but the client saw a successful CreateMonitoredItems response
and held the subscription open, wasting resources and leaking the
address-space shape through the item metadata.

New override on DriverNodeManager.CreateMonitoredItems:
- Pre-iterates itemsToCreate, gates each through AuthorizationGate with
  OpcUaOperation.CreateMonitoredItems at the target node's scope.
- For denied slots: sets errors[i] = new ServiceResult(
  StatusCodes.BadUserAccessDenied). The OPC Foundation base stack
  honours pre-populated non-success errors and skips item creation for
  those slots — the subscription never holds a handle to a denied
  node.
- Preserves prior errors (e.g. BadNodeIdUnknown) — first diagnosis wins.
- Non-string-identifier references (stack-synthesized numeric ids)
  bypass the gate.

Extracted the pure filter logic into
GateMonitoredItemCreateRequests(items, errors, identity, gate,
scopeResolver) — static internal, unit-testable without the OPC UA
server stack.

Tests — 6 new in MonitoredItemGatingTests.cs (gate-null no-op,
denied-gets-BadUserAccessDenied, allowed-passes, mixed-batch-denies-
per-item, pre-populated-error-preserved, numeric-id-bypass). Server.Tests
263 → 269.

Known follow-ups:
- Per-item (AuthGenerationId, MembershipVersion) stamp (decision #153)
  for detecting revocation mid-subscription — needs subscription-layer
  plumbing.
- TransferSubscriptions not yet wired (same pattern, smaller scope).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:17:40 -04:00
Joseph Doherty e8b8541554 Phase 6.2 Stream C — Browse gating on DriverNodeManager 
Closes task #120 (partial — strict point-check; ancestor-visibility
implication is a follow-up).

Before this commit DriverNodeManager exposed every materialized node to
every browsing session regardless of the user's ACL. Read + Write +
HistoryRead were already gated through AuthorizationGate in Phase 6.2
Stream C core; Browse was the one surface where the session could still
enumerate nodes it had no permission to touch, discovering structure
even when reads failed with BadUserAccessDenied.

Implementation
- New `Browse` override on DriverNodeManager that calls base.Browse
  first (lets the stack populate the reference list normally), then
  post-filters the IList<ReferenceDescription> so denied nodes are
  removed silently. OPC UA convention: Browse filtering is invisible to
  the client; no BadUserAccessDenied surfaces.
- Extracted the filter loop into the static internal
  `FilterBrowseReferences(references, userIdentity, gate, scopeResolver)`
  so the policy is unit-testable without standing up the full OPC UA
  server stack.
- Non-string NodeId identifiers (stack-synthesized standard-type
  references with numeric identifiers) bypass the gate — only driver-
  materialized nodes key into the authz trie.
- When AuthorizationGate or NodeScopeResolver is null, the filter is a
  no-op — preserves the pre-Phase-6.2 dispatch path for integration
  tests that construct DriverNodeManager without authz.

Tests — 6 new in BrowseGatingTests.cs (gate-null no-op, empty-list
no-op, denied-removed, allowed-passes-through, numeric-id bypass,
lax-mode null-identity keeps references). Server.Tests 257 → 263.

Known follow-up (tracked implicitly under #120 re-scope):
- Ancestor-visibility implication (acl-design.md §Browse line 111): a
  user with Read at `Line/Tag` should be able to Browse `Line` even
  without an explicit Browse grant. Current filter does a strict
  point-check. Proper fix needs TriePermissionEvaluator to expose a
  "subtree-has-any-grant" query.
- TranslateBrowsePathsToNodeIds not yet filtered (same extension
  pattern; small follow-up).

Docs: v2-release-readiness.md Phase 6.2 Stream C hardening list marks
the Browse bullet struck-through with "Partial" close-out note.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:11:19 -04:00
Joseph Doherty a23de2a7e4 Phase 6.3 A.2 + D.1 — GenerationRefreshHostedService: poll + lease-wrap apply 
Closes tasks #132 + #118 (GA hardening backlog).

Before this commit, the Server only observed the generation in force at
process start (SealedBootstrap). Peer-published generations accumulated
in the shared config DB while the running node kept serving the
generation it had sealed on boot. Two consequences:

1. Operator role-swaps required a process restart — Admin publishes a
   new generation, but the Server's RedundancyCoordinator never re-read
   the topology.
2. ApplyLeaseRegistry had no apply to wrap. ServiceLevelBand sat at
   PrimaryHealthy (255) during every publish because nothing opened a
   lease; PrimaryMidApply (200) was effectively dead code.

New GenerationRefreshHostedService (src/.../Server/Hosting/):
- Polls sp_GetCurrentGenerationForCluster every 5s (tunable).
- On change: opens leases.BeginApplyLease(newGenerationId, Guid.NewGuid()),
  calls coordinator.RefreshAsync inside the `await using`, releases on
  scope exit (success / exception / cancellation via IAsyncDisposable).
- Diagnostic properties: LastAppliedGenerationId, TickCount, RefreshCount.
- Delegate-injected currentGenerationQuery for test drive-through; real
  path is the private static DefaultQueryCurrentGenerationAsync.
- Registered as HostedService in Program.cs alongside the Phase 6.3
  redundancy / peer-probe stack.

Scope intentionally narrow: only the coordinator refreshes today. Driver
re-init, virtual-tag re-bind, script-engine reload remain as follow-up
wiring. The lease wrap is the right seam for those subscribers to hook
once they grow hot-reload support — the doc comments say so.

Tests
- 5 new unit tests in GenerationRefreshHostedServiceTests (first-apply,
  identity no-op, change-triggers-refresh, null-generation-is-no-op,
  lease-is-released-on-exit). Stub generation-query delegate; real
  coordinator backed by EF InMemory DB.
- Server.Tests total 252 → 257.

Docs
- v2-release-readiness.md Phase 6.3 follow-ups list marks the
  sp_PublishGeneration lease wrap bullet struck-through with close-out
  note.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 15:02:33 -04:00
Joseph Doherty de77d42eab Phase 6.3 Stream B — peer-probe HostedServices populating PeerReachabilityTracker 
Closes task #116 (GA hardening backlog). Before this commit the
RedundancyStatePublisher saw PeerReachability.Unknown for every peer
because the tracker had no writers — every healthy peer got
degraded to the Isolated-Primary band (230) even when fully reachable.
Not release-blocking (safe default), but not the full non-transparent-
redundancy UX either.

Two-layer probe model per docs/v2/implementation/phase-6-3-redundancy-runtime.md
§Stream B:

- PeerHttpProbeLoop (Stream B.1) — fast-fail layer at 2 s / 1 s timeout.
  Hits each peer's http://{Host}:{DashboardPort}/healthz via an injected
  IHttpClientFactory. Writes the HTTP bit of PeerReachability while
  preserving the UA bit from the last UA probe so a transient HTTP blip
  doesn't clobber the authoritative UA reading.

- PeerUaProbeLoop (Stream B.2) — authoritative layer at 10 s / 5 s
  timeout. Calls DiscoveryClient.GetEndpoints against opc.tcp://{Host}:
  {OpcUaPort} — cheap compared to a full Session.Create, no cert trust
  required. Short-circuits when the HTTP probe last reported the peer
  unhealthy (no wasted handshakes on a known-dead endpoint), clearing
  the stale UaHealthy bit in that case.

Both inherit from BackgroundService, follow the tick/delay/catch pattern
RedundancyPublisherHostedService + ResilienceStatusPublisherHostedService
established, and expose TickAsync() as internal for test drive-through.

New PeerProbeOptions class carries the four intervals/timeouts so
operators can tune cadence per site. Registered as singleton in Program.cs;
HTTP client registered by name so the OtOpcUa handler chain
(Serilog enrichers, potential future OpenTelemetry instrumentation) isn't
bypassed.

Tests — 9 new unit tests across PeerHttpProbeLoopTests (5) and
PeerUaProbeLoopTests (4). All pass. Server.Tests total 243 → 252.
Full solution build clean.

Docs: v2-release-readiness.md Phase 6.3 follow-ups list marks the
peer-probe bullet struck-through with a close-out note.

Still deferred in Phase 6.3:
  - OPC UA variable-node binding (task #117 — ServiceLevel + ServerUriArray)
  - sp_PublishGeneration lease wrap (task #118)
  - Client interop matrix (task #119)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 14:53:38 -04:00
Joseph Doherty 96918b148c Unblock phase-6 compliance meta-runner on task-galaxy-e2e 
Two small fixes so `scripts/compliance/phase-6-all.ps1` exits 0 — this is
GA exit-criterion #1 from docs/v2/v2-release-readiness.md.

1. Admin csproj: bump OpenTelemetry.Extensions.Hosting 1.15.2 → 1.15.3 +
   OpenTelemetry.Exporter.Prometheus.AspNetCore 1.15.2-beta.1 →
   1.15.3-beta.1. Fixes NU1902 moderate-severity advisory
   (GHSA-g94r-2vxg-569j) on the transitive OpenTelemetry.Api 1.15.2 pull.
   TreatWarningsAsErrors on the Admin project promoted the advisory to an
   error and failed the whole `dotnet test` run at restore.

2. SchemaComplianceTests.All_expected_tables_exist: the expected-tables
   list drifted behind four Phase 7 migration additions — Script,
   ScriptedAlarm, ScriptedAlarmState, VirtualTag. The EF model + live
   migrations have carried these tables for a while; the compliance test
   just needed the four names added. Applied migrations against a scratch
   DB to confirm the list is exhaustive.

Verification: full solution test pass 2301 / 2301 (one tolerated
pre-existing CLI flake). Phase 6 aggregate compliance: all four phases
PASS with no test-count regression.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 14:36:20 -04:00
Joseph Doherty 69e0d02c72 task-galaxy-e2e branch — non-FOCAS work-in-progress snapshot 
Catch-all commit for pending work on the task-galaxy-e2e branch that
wasn't part of the FOCAS migration. Grouping by topic so future per-topic
commits can be cherry-picked if needed.

TwinCAT
- src/.../Driver.TwinCAT/AdsTwinCATClient.cs + TwinCATDriverFactoryExtensions.cs:
  factory-registration extensions + ADS client refinements.
- src/.../Driver.TwinCAT.Cli/Commands/BrowseCommand.cs: new browse command
  for the TwinCAT test-client CLI.
- tests/.../Driver.TwinCAT.IntegrationTests/TwinCAT3SmokeTests.cs + TwinCatProject/:
  fixture scaffold with a minimal POU + README pointing at the TCBSD/ESXi
  VM for e2e.
- docs/Driver.TwinCAT.Cli.md + docs/drivers/TwinCAT-Test-Fixture.md:
  documentation for the above.
- docs/v3/twincat-backlog.md: forward-looking backlog seed.

Admin UI + fleet status
- src/.../Admin/Components/Pages/Clusters/DriversTab.razor + Hosts.razor:
  UI refresh for fleet-status rendering.
- src/.../Admin/Hubs/FleetStatusHub.cs + FleetStatusPoller.cs +
  Admin/Program.cs: SignalR hub + poller plumbing for live fleet data.
- tests/.../Admin.Tests/FleetStatusPollerTests.cs: poller coverage.

Server + redundancy runtime (Phase 6.3 follow-ups)
- src/.../Server/Hosting/RedundancyPublisherHostedService.cs: HostedService
  that owns the RedundancyStatePublisher lifecycle + wires peer reachability.
- src/.../Server/Redundancy/ServerRedundancyNodeWriter.cs: OPC UA
  variable-node writer binding ServiceLevel + ServerUriArray to the
  publisher's events.
- src/.../Server/Program.cs + Server.csproj: hosted-service registration.
- tests/.../Server.Tests/ServerRedundancyNodeWriterTests.cs +
  Server.Tests.csproj: coverage for the above.

Configuration
- src/.../Configuration/Validation/DraftValidator.cs +
  tests/.../Configuration.Tests/DraftValidatorTests.cs: draft-validation
  refinements.

E2E scripts (shared infrastructure)
- scripts/e2e/README.md + _common.ps1 + test-all.ps1: shared helpers + the
  all-drivers test-all runner.
- scripts/e2e/test-opcuaclient.ps1: OPC UA Client e2e runner.

Docs
- docs/v2/implementation/phase-6-{1,2,3,4}*.md + exit-gate-phase-{3,7}.md:
  phase-gate + implementation doc updates.
- docs/v2/plan.md: top-level plan refresh.
- docs/v2/redundancy-interop-playbook.md: client interop playbook for the
  Phase 6.3 redundancy-runtime work.

Two orphan FOCAS docs remain on disk but deliberately unstaged —
docs/v2/focas-deployment.md and docs/v2/implementation/focas-simulator-plan.md
describe the now-retired Tier-C topology and should either be rewritten
or deleted in a follow-up.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 14:12:19 -04:00
Joseph Doherty 4b0664bd55 FOCAS — retire Tier-C split, inline managed wire client, make read-only 
Migration closes the FOCAS Tier-C architecture. OtOpcUa previously had
`Driver.FOCAS.Host` (NSSM-wrapped Windows service loading Fwlib64.dll via
P/Invoke) + `Driver.FOCAS.Shared` (MessagePack IPC contracts) + a C shim
DLL stand-in for unit tests. All of it is deleted; the driver is now a
single in-process managed assembly talking the FOCAS/2 Ethernet binary
protocol directly on TCP:8193.

Architecture

- Pure-managed `FocasWireClient` inlined at `src/.../Driver.FOCAS/Wire/`
  (owner-imported — see Wire/FocasWireClient.cs for the full surface).
  Opens two TCP sockets, runs the initiate handshake, serialises requests
  on socket 2 through a semaphore, closes cleanly with PDU + socket
  teardown. Both sync `IDisposable` and async `IAsyncDisposable`.
- `WireFocasClient` (same folder) adapts the wire client to OtOpcUa's
  `IFocasClient` surface — fixed-tree reads, PARAM/MACRO/PMC addresses,
  alarms. Writes return `BadNotWritable` by design — OtOpcUa is read-only
  against FOCAS.
- `FocasDriverFactoryExtensions` now accepts `"Backend": "wire"` (default)
  and `"Backend": "unimplemented"`. Legacy `ipc` and `fwlib` backends are
  rejected at startup with a diagnostic pointing at the migration doc.

Deletions

- `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host/` — whole project + Ipc/,
  Backend/, Stability/, Program.cs.
- `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Shared/` — Contracts/, FrameReader,
  FrameWriter, whole project.
- `tests/...Driver.FOCAS.Host.Tests/` + `.Shared.Tests/` — whole projects.
- `src/.../Driver.FOCAS/FwlibNative.cs` + `FwlibFocasClient.cs` — 21
  P/Invokes + 7 `Pack=1` marshalling structs + the Fwlib-backed
  `IFocasClient` implementation.
- `src/.../Driver.FOCAS/Ipc/` + `Supervisor/` — IPC client wrapper +
  Host-process supervisor (backoff, circuit breaker, heartbeat, post-
  mortem reader, process launcher).
- `scripts/install/Install-FocasHost.ps1` — NSSM service installer.
- `tests/.../Driver.FOCAS.Tests/{IpcFocasClientTests, IpcLoopback,
  FwlibNativeHelperTests, PostMortemReaderCompatibilityTests,
  SupervisorTests, FocasDriverFactoryExtensionsTests}.cs` — tests that
  exercised the retired surfaces.
- `tests/.../Driver.FOCAS.IntegrationTests/Shim/` — the zig-built C shim
  DLL that masqueraded as Fwlib64.dll.

Solution changes

- `ZB.MOM.WW.OtOpcUa.slnx` drops the 4 retired project refs.
- `src/.../Driver.FOCAS.csproj` drops the Shared ProjectReference, adds
  `Microsoft.Extensions.Logging.Abstractions` for the optional `ILogger`
  hook in `FocasWireClient`.
- `src/.../Driver.FOCAS.Cli.csproj` drops the six `<Content Include>`
  entries that copied `vendor/fanuc/*.dll` into the CLI bin. CLI now uses
  `WireFocasClient` directly.
- `FocasDriver` default factory flips to `Wire.WireFocasClientFactory`.

Integration tests

- New `tests/.../Driver.FOCAS.IntegrationTests/` project covering fixed-
  tree reads (identity, axes, dynamic, program, operation mode, timers,
  spindle load + max RPM, servo meters), user-authored PARAM / MACRO /
  PMC reads, `DiscoverAsync` emission, `SubscribeAsync` + `OnDataChange`,
  `IAlarmSource` raise/clear transitions, and `ProbeAsync` /
  `OnHostStatusChanged`. 9 e2e tests against the focas-mock fixture
  (Docker container with the vendored Python mock's native FOCAS/2
  Ethernet responder).
- `scripts/integration/run-focas.ps1` orchestrates compose up → tests →
  compose down. Dropped the shim-build stage + DLL-copy step + the split
  testhost workaround (the latter only existed because of native-DLL
  lifecycle bugs the shim tripped).
- Docker compose collapses from 11 per-series services to one `focas-sim`
  service. Tests seed per-series state via `mock_load_profile` at test
  start.
- Vendored focas-mock snapshot refreshed to pick up upstream's native
  FOCAS/2 Ethernet responder (was 660 lines, now 1018) — the
  pre-refresh snapshot only spoke the JSON admin protocol.

Tests

- 145/145 unit tests in `Driver.FOCAS.Tests` pass (was 208 pre-deletion;
  63 removed tests exercised the retired IPC/shim/supervisor/Fwlib
  surfaces).
- 9/9 integration tests pass against the refreshed mock.
- `FocasScaffoldingTests.Unimplemented_factory_throws_on_Create…` updated
  to assert the new diagnostic message pointing at
  `docs/drivers/FOCAS.md` rather than the now-gone `Fwlib64.dll`.

Docs

- `docs/drivers/FOCAS.md` rewritten for the managed wire topology —
  deployment collapses to one `"Backend": "wire"` config block, no
  separate service, no DLL deployment, no pipe ACL.
- `docs/drivers/FOCAS-Test-Fixture.md` updated — single TCP probe skip
  gate instead of TCP + shim probe; fewer moving parts.
- `docs/drivers/README.md` row for FOCAS reflects the Tier-A managed
  topology (previously listed Tier-C + `Fwlib64.dll` P/Invoke).
- `docs/Driver.FOCAS.Cli.md` drops the Tier-C architecture-note section.
- `docs/v2/implementation/focas-isolation-plan.md` marked historical —
  the plan it documents was executed then superseded by the wire client.
- `docs/v2/v2-release-readiness.md` re-audited 2026-04-24. Phase 5
  driver complement closed. FOCAS change-log entry added.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 14:10:59 -04:00
Joseph Doherty 404b54add0 FOCAS — commit previously-orphaned support files 
Brings seven FOCAS-related files into git that shipped as part of earlier
FOCAS work but were never staged. Adding them now so the tree reflects the
compilable state + pre-empts dead references from the migration commit that
follows:

- src/.../Driver.FOCAS/FocasAlarmProjection.cs — raise/clear diffing + severity
  mapping surfaced via IAlarmSource on FocasDriver. Referenced by committed
  FocasDriver.cs; tests in FocasAlarmProjectionTests.cs.
- src/.../Admin/Services/FocasDriverDetailService.cs — Admin UI per-instance
  detail page data source.
- src/.../Admin/Components/Pages/Drivers/FocasDetail.razor — Blazor page
  rendering the above (from task #69).
- tests/.../Admin.Tests/FocasDriverDetailServiceTests.cs — exercises the
  detail service.
- tests/.../Driver.FOCAS.Tests/FocasAlarmProjectionTests.cs — raise/clear
  diff semantics against FakeFocasClient.
- tests/.../Driver.FOCAS.Tests/FocasHandleRecycleTests.cs — proactive recycle
  cadence test.
- docs/v2/implementation/focas-wire-protocol.md — captured FOCAS/2 Ethernet
  wire protocol reference. Useful going forward even though the Tier-C /
  simulator plan docs are historical.

No runtime behaviour change — these files compile today and the solution
build/test pass already depends on them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 14:09:51 -04:00
692 changed files with 47748 additions and 26539 deletions
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.gitignore
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@@ -37,3 +37,6 @@ src/ZB.MOM.WW.OtOpcUa.Server/config_cache.db
# E2E sidecar config — NodeIds are specific to each dev's local seed (see scripts/e2e/README.md)
scripts/e2e/e2e-config.json
config_cache*.db
# Client CLI/UI runtime scratch (last-connected endpoint cache)
session.dat
CLAUDE.md
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@@ -4,15 +4,38 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
## Project Goal
Build an OPC UA server on .NET Framework 4.8 (32-bit) that exposes AVEVA System Platform (Wonderware) Galaxy tags via the MXAccess toolkit. The server mirrors the Galaxy object hierarchy as an OPC UA address space, translating between contained-name browse paths and tag-name runtime references.
Build an OPC UA server (.NET 10) that exposes AVEVA System Platform
(Wonderware) Galaxy tags. The server mirrors the Galaxy object
hierarchy as an OPC UA address space, translating between
contained-name browse paths and tag-name runtime references. Galaxy
access flows through the in-process `GalaxyDriver`
(`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/`) talking gRPC to a separately
installed **mxaccessgw** gateway process. The gateway owns the
MXAccess COM bitness constraint (its worker is x86 net48); everything
in this repo is .NET 10. PR 7.2 retired the legacy in-process
`Galaxy.Host` / `Galaxy.Proxy` / `Galaxy.Shared` projects + the
`OtOpcUaGalaxyHost` Windows service.
See `docs/v2/Galaxy.Performance.md` for the runtime perf surface
(tracing, metrics, soak harness).
## Architecture Overview
### Data Flow
1. **Galaxy Repository DB (ZB)** — SQL Server database holding the deployed object hierarchy and attribute definitions. Queried at startup and on change detection to build/rebuild the OPC UA address space.
2. **MXAccess COM API** — Runtime data access layer. Subscribes to Galaxy tag attributes for live read/write. Requires a dedicated STA thread with a Win32 message pump for COM callbacks.
3. **OPC UA Server** — Exposes the hierarchy as browse nodes and attributes as variable nodes. Clients browse via contained names but reads/writes are translated to `tag_name.AttributeName` format for MXAccess.
1. **Galaxy Repository DB (ZB)** — SQL Server database holding the
deployed object hierarchy and attribute definitions. The
mxaccessgw's `GalaxyRepositoryClient` queries it via gRPC; the
driver consumes the materialised hierarchy through
`IGalaxyHierarchySource`.
2. **MXAccess (via mxaccessgw)** — Live read/write/subscribe over a
gRPC session. The gateway owns the COM apartment + STA pump
server-side; the driver speaks `MxCommand` / `MxEvent` protos
exclusively.
3. **OPC UA Server** — Exposes the hierarchy as browse nodes and
attributes as variable nodes. Clients browse via contained names
but reads/writes are translated to `tag_name.AttributeName` format
for MXAccess.
### Key Concept: Contained Name vs Tag Name
@@ -22,43 +45,17 @@ Galaxy objects have two names:
Example: browsing `TestMachine_001/DelmiaReceiver/DownloadPath` translates to MXAccess reference `DelmiaReceiver_001.DownloadPath`.
See `gr/layout.md` for the full mapping and target OPC UA structure.
### Data Type Mapping
Galaxy `mx_data_type` values map to OPC UA types (Boolean, Int32, Float, Double, String, DateTime, etc.). Array attributes use ValueRank=1 with ArrayDimensions from the Galaxy attribute definition. Full mapping in `gr/data_type_mapping.md`.
Galaxy `mx_data_type` values map to OPC UA types (Boolean, Int32, Float, Double, String, DateTime, etc.). Array attributes use ValueRank=1 with ArrayDimensions from the Galaxy attribute definition. The driver-side mapping lives in `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DataTypeMap.cs`.
### Change Detection
Poll `galaxy.time_of_last_deploy` in the ZB database to detect redeployments, then rebuild the address space. See `gr/build_layout_plan.md` for the step-by-step plan.
`DeployWatcher` (`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DeployWatcher.cs`) polls the gateway's deploy-event signal and raises `IRediscoverable.OnRediscoveryNeeded` when the Galaxy redeploys. The server's `DriverHost` consumes the signal and rebuilds the address space.
## Reference Implementation
## mxaccessgw
An existing MXAccess client implementation is at:
`C:\Users\dohertj2\Desktop\scadalink-design\lmxproxy\src\ZB.MOM.WW.LmxProxy.Host`
Key patterns from that codebase:
- **StaComThread** — Dedicated STA thread with Win32 message pump (`GetMessage`/`DispatchMessage` loop). All MXAccess COM objects must be created and called on this thread. Uses `PostThreadMessage(WM_APP)` to marshal work items.
- **LMXProxyServer COM object** — `Register(clientName)` returns a connection handle. `AddItem(handle, address)` + `AdviseSupervisory(handle, itemHandle)` for subscriptions. `OnDataChange`/`OnWriteComplete` events for callbacks.
- **Reconnect** — Stored subscriptions are replayed after reconnect. A probe tag subscription monitors connection health.
- **COM cleanup** — `Marshal.ReleaseComObject()` on disconnect. Event handlers must be unwired before unregister.
## MXAccess Documentation
`mxaccess_documentation.md` in the project root contains the full ArchestrA MXAccess Toolkit User's Guide. Key API: `ArchestrA.MxAccess` namespace, `LMXProxyServer` class. The toolkit DLLs are in `Program Files (x86)\ArchestrA\Framework\bin`.
## Galaxy Repository Database
Connection: `sqlcmd -S localhost -d ZB -E` (Windows Auth). See `gr/connectioninfo.md`.
The `gr/` folder contains:
- `queries/` — SQL for hierarchy extraction, attribute lookup, and change detection
- `ddl/tables/` and `ddl/views/` — Schema definitions
- `schema.md` — Full table/view reference
- `build_layout_plan.md` — Step-by-step plan for building the OPC UA address space from DB queries
- `gr/CLAUDE.md` — Detailed guidance for working within the `gr/` subfolder
Key tables: `gobject` (hierarchy/deployment), `template_definition` (object categories), `dynamic_attribute` (user-defined attributes), `primitive_instance` (primitive-to-attribute links), `galaxy` (change detection).
The gateway lives in a sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`. See `docs/v2/Galaxy.ParityRig.md` for the gw setup recipe (build, API key provisioning via `apikey create-key`, env-var overrides for HTTP/2 cleartext + worker path). The gw's MXAccess Toolkit reference (its `gateway.md`) is the canonical MxAccess API doc; the standalone `mxaccess_documentation.md` previously kept in this repo retired in PR 7.3.
## Build Commands
@@ -71,11 +68,48 @@ dotnet test tests/ZB.MOM.WW.OtOpcUa.IntegrationTests # integration tests
dotnet test --filter "FullyQualifiedName~MyTestClass.MyMethod" # single test
```
## Docker Workflow (driver fixtures + central SQL Server)
> **Migrated 2026-04-28**: Docker config + host moved off this dev VM (DESKTOP-6JL3KKO) onto the shared Linux Docker host (`DOCKER`, 10.100.0.35) so the dev VM could shed WSL2/Hyper-V and have its GPU re-attached via ESXi passthrough. Docker Desktop is no longer installed here. All checked-in `appsettings.json` defaults, fixture-class default endpoints, and `e2e-config.sample.json` were rewritten to target `10.100.0.35`. The driver fixture compose files under `tests/.../Docker/docker-compose.yml` now carry a `project: lmxopcua` label on every service. See `docs/v2/dev-environment.md` for the full rewrite (header dated 2026-04-28).
Docker workloads run on a shared Linux host at **`10.100.0.35`** — not on this VM. Stacks live at `/opt/otopcua-<driver>/` on the host and carry the `project=lmxopcua` label so they're discoverable via `docker ps --filter label=project=lmxopcua`.
**`docker -H ssh://...` does NOT work from this VM.** Windows OpenSSH ↔ docker.exe stdio bridging hangs (`docker system dial-stdio` runs server-side but no API data flows). Use the helper below — it SSHes into the docker host and runs `docker compose` server-side.
**Use `lmxopcua-fix.ps1` (in `~/bin`) to control fixtures from this VM:**
```powershell
lmxopcua-fix ls # list all lmxopcua-tagged containers on the host
lmxopcua-fix up modbus standard # bring a profile up
lmxopcua-fix up abcip controllogix
lmxopcua-fix up s7 s7_1500
lmxopcua-fix up opcuaclient # single-service stack, no profile arg
lmxopcua-fix down modbus # tear stack down
lmxopcua-fix logs modbus
lmxopcua-fix sync modbus # rsync this repo's tests/.../Docker/ → /opt/otopcua-modbus/
```
**`sync` is the deployment step.** When you edit a fixture's compose file or Dockerfile under `tests/.../Docker/`, run `lmxopcua-fix sync <driver>` to push the changes to the docker host before bringing the stack up. The repo files are the source of truth; `/opt/otopcua-<driver>/` is a mirrored deployment.
**Endpoints (defaults already point at the docker host):**
- SQL Server (always-on): `10.100.0.35,14330` — used by `appsettings.json` for `ConfigDb`.
- Modbus: `10.100.0.35:5020` (`MODBUS_SIM_ENDPOINT`)
- AB CIP: `10.100.0.35:44818` (`AB_SERVER_ENDPOINT`)
- S7: `10.100.0.35:1102` (`S7_SIM_ENDPOINT`)
- OPC UA reference (opc-plc): `opc.tcp://10.100.0.35:50000` (`OPCUA_SIM_ENDPOINT`)
Override any endpoint via the env var to point at a real PLC. The local OtOpcUa server runs on this VM at `opc.tcp://localhost:4840` — **that's not on the docker host**.
See `docs/v2/dev-environment.md` for the full inventory and rationale.
## Build & Runtime Constraints
- Language: C#, .NET Framework 4.8, **x86 (32-bit)** platform target — required for MXAccess COM interop
- MXAccess requires a deployed ArchestrA Platform on the machine running the server
- COM apartment: MXAccess objects must live on an STA thread with a message pump
- Language: C#, .NET 10, AnyCPU. The MXAccess COM bitness constraint
is owned by the mxaccessgw worker (x86 net48), not by anything in
this repo.
- The gateway's MXAccess worker requires a deployed ArchestrA Platform
on the machine running the gateway. The OtOpcUa server itself does
not.
## Transport Security
@@ -83,7 +117,7 @@ The server supports configurable OPC UA transport security via the `Security` se
## Redundancy
The server supports non-transparent warm/hot redundancy via the `Redundancy` section in `appsettings.json`. Two instances share the same Galaxy DB and MXAccess runtime but have unique `ApplicationUri` values. Each exposes `RedundancySupport`, `ServerUriArray`, and a dynamic `ServiceLevel` based on role and runtime health. The primary advertises a higher ServiceLevel than the secondary. See `docs/Redundancy.md` for the full guide.
The server supports non-transparent warm/hot redundancy via the `Redundancy` section in `appsettings.json`. Two instances share the same Galaxy DB and the same mxaccessgw (under distinct `MxAccess.ClientName` values) but have unique `ApplicationUri` values. Each exposes `RedundancySupport`, `ServerUriArray`, and a dynamic `ServiceLevel` based on role and runtime health. The primary advertises a higher ServiceLevel than the secondary. See `docs/Redundancy.md` for the full guide.
## LDAP Authentication
@@ -94,7 +128,6 @@ The server uses LDAP-based user authentication via the `Authentication.Ldap` sec
- **Logging**: Serilog with rolling daily file sink
- **Unit tests**: xUnit + Shouldly for assertions
- **Service hosting (Server, Admin)**: .NET generic host with `AddWindowsService` (decision #30 — replaced TopShelf in v2; see `src/ZB.MOM.WW.OtOpcUa.Server/OpcUaServerService.cs`)
- **Service hosting (Galaxy.Host)**: plain console app wrapped by NSSM (`.NET Framework 4.8 x86` — required by MXAccess COM bitness)
- **OPC UA**: OPC Foundation UA .NET Standard stack (https://github.com/opcfoundation/ua-.netstandard) — NuGet: `OPCFoundation.NetStandard.Opc.Ua.Server`
## OPC UA .NET Standard Documentation
README.md
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@@ -1,200 +1,115 @@
# LmxOpcUa
# OtOpcUa
OPC UA server and cross-platform client tools for AVEVA System Platform (Wonderware) Galaxy. The server exposes Galaxy tags via MXAccess as an OPC UA address space. The client stack provides a shared library, CLI tool, and Avalonia desktop application for browsing, reading/writing, subscriptions, alarms, and historical data.
OPC UA server (.NET 10 AnyCPU) that exposes a fleet of industrial drivers as a single OPC UA address space. Drivers ship in-process for AVEVA System Platform Galaxy (via the sibling `mxaccessgw` repo), Modbus TCP, Siemens S7, Allen-Bradley CIP (ControlLogix / CompactLogix), Allen-Bradley Legacy (SLC 500 / MicroLogix), Beckhoff TwinCAT (ADS), FANUC FOCAS, and OPC UA Client (gateway).
A cross-platform client stack (.NET 10) — shared library, CLI, and Avalonia desktop app — connects to any OPC UA server.
## Architecture
```
OPC UA Clients
(CLI, Desktop UI, 3rd-party)
|
v
+-----------------+ +------------------+ +-----------------+
| Galaxy Repo DB |---->| OPC UA Server |<--->| MXAccess Client |
| (SQL Server) | | (address space) | | (STA + COM) |
+-----------------+ +------------------+ +-----------------+
| |
+-------+--------+ +---------+---------+
| Status Dashboard| | Historian Runtime |
| (HTTP/JSON) | | (SQL Server) |
+----------------+ +-------------------+
OPC UA Clients (CLI, Desktop UI, 3rd-party)
|
v
+-------------------------------------+
| OtOpcUa.Server (.NET 10 AnyCPU) |
| address space + capability fan-out|
+-------------------------------------+
| | | | | | | |
Galaxy Modbus S7 AbCip AbLeg TwinCAT FOCAS OpcUaClient
|
v
mxaccessgw (sibling repo, gRPC)
|
v
MXAccess COM (x86 worker, on AVEVA box)
```
## Contained Name vs Tag Name
Galaxy is the only driver with an external runtime: it speaks gRPC to a separately installed `mxaccessgw` server (sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`) which owns the MXAccess COM apartment and the x86/STA bitness constraint server-side. Everything in this repo is platform-agnostic .NET 10.
| Browse Path (contained names) | Runtime Reference (tag name) |
|-------------------------------|------------------------------|
| `TestMachine_001/DelmiaReceiver/DownloadPath` | `DelmiaReceiver_001.DownloadPath` |
| `TestMachine_001/MESReceiver/MoveInBatchID` | `MESReceiver_001.MoveInBatchID` |
## Prerequisites
---
- .NET 10 SDK (server, drivers, clients all target .NET 10)
- SQL Server reachable for the central config DB
- For Galaxy specifically: a running `mxaccessgw` deployment — see [docs/v2/Galaxy.ParityRig.md](docs/v2/Galaxy.ParityRig.md)
- For Wonderware Historian read-back: optional `OtOpcUaWonderwareHistorian` sidecar — see [docs/ServiceHosting.md](docs/ServiceHosting.md)
## Server
The OPC UA server runs on .NET Framework 4.8 (x86) and bridges the Galaxy runtime to OPC UA clients.
### Server Prerequisites
- .NET Framework 4.8 SDK
- AVEVA System Platform with ArchestrA Framework installed
- Galaxy repository database (SQL Server, Windows Auth)
- MXAccess COM registered (`LMXProxy.LMXProxyServer`)
- Wonderware Historian (optional, for historical data access)
- Windows (required for COM interop and MXAccess)
### Build and Run Server
## Quick Start
```bash
dotnet restore ZB.MOM.WW.LmxOpcUa.slnx
dotnet build src/ZB.MOM.WW.LmxOpcUa.Host
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Host
dotnet restore ZB.MOM.WW.OtOpcUa.slnx
dotnet build ZB.MOM.WW.OtOpcUa.slnx
dotnet test ZB.MOM.WW.OtOpcUa.slnx
# Run the server in dev (foreground)
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Server
```
The server starts on `opc.tcp://localhost:4840/LmxOpcUa` with the `None` security profile by default. Configure `Security.Profiles` in `appsettings.json` to enable `Basic256Sha256-Sign` or `Basic256Sha256-SignAndEncrypt` for transport security. See [Security Guide](docs/security.md).
The server starts on `opc.tcp://localhost:4840` with the `None` security profile. Configure `Security.Profiles` in `src/ZB.MOM.WW.OtOpcUa.Server/appsettings.json` to enable `Basic256Sha256-Sign` or `Basic256Sha256-SignAndEncrypt`. See [docs/security.md](docs/security.md).
### Install as Windows Service
## Install as Windows Services
Production deployment is driven by `scripts/install/Install-Services.ps1`, which registers the `OtOpcUa` server service (and optionally the `OtOpcUaWonderwareHistorian` sidecar) under a chosen service account. Galaxy support requires a separately installed `mxaccessgw` — neither this repo nor the install script provisions it.
```powershell
.\scripts\install\Install-Services.ps1 `
-InstallRoot 'C:\Program Files\OtOpcUa' `
-ServiceAccount 'DOMAIN\svc-otopcua'
```
Add `-InstallWonderwareHistorian` for the historian sidecar. See the script header and [docs/ServiceHosting.md](docs/ServiceHosting.md) for full options.
## Client CLI
```bash
cd src/ZB.MOM.WW.LmxOpcUa.Host/bin/Debug/net48
ZB.MOM.WW.LmxOpcUa.Host.exe install
ZB.MOM.WW.LmxOpcUa.Host.exe start
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- connect -u opc.tcp://localhost:4840
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- browse -u opc.tcp://localhost:4840 -r -d 3
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- read -u opc.tcp://localhost:4840 -n "ns=2;s=SomeNode"
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- write -u opc.tcp://localhost:4840 -n "ns=2;s=SomeNode" -v 42
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- subscribe -u opc.tcp://localhost:4840 -n "ns=2;s=SomeNode" -i 500
```
**Service logon requirement:** The service must run under a Windows account that has access to the AVEVA Galaxy and Historian. The default `LocalSystem` account can connect to MXAccess and SQL Server but **cannot authenticate with the Historian SDK** (HCAP). Configure the service to "Log on as" a domain or local user that is a recognized ArchestrA platform user. This can be set in `services.msc` or during install with `ZB.MOM.WW.LmxOpcUa.Host.exe install -username DOMAIN\user -password ***`.
### Run Server Tests
```bash
dotnet test tests/ZB.MOM.WW.LmxOpcUa.Tests
dotnet test tests/ZB.MOM.WW.LmxOpcUa.IntegrationTests
```
---
## Client Stack
The client stack is cross-platform (.NET 10) and consists of three projects sharing a common `IOpcUaClientService` abstraction. No AVEVA software or COM is required — the clients connect to any OPC UA server.
### Client Prerequisites
- .NET 10 SDK
- No platform-specific dependencies (runs on Windows, macOS, Linux)
### Build All Clients
```bash
dotnet build src/ZB.MOM.WW.LmxOpcUa.Client.Shared
dotnet build src/ZB.MOM.WW.LmxOpcUa.Client.CLI
dotnet build src/ZB.MOM.WW.LmxOpcUa.Client.UI
```
### Run Client Tests
```bash
dotnet test tests/ZB.MOM.WW.LmxOpcUa.Client.Shared.Tests
dotnet test tests/ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests
dotnet test tests/ZB.MOM.WW.LmxOpcUa.Client.UI.Tests
```
### Client CLI
```bash
# Connect
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- connect -u opc.tcp://localhost:4840/LmxOpcUa
# Browse Galaxy hierarchy
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- browse -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=ZB" -r -d 5
# Read a tag
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- read -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=TestMachine_001.MachineID"
# Write a tag
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- write -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=TestChildObject.TestString" -v "Hello"
# Subscribe to changes
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- subscribe -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=TestChildObject.TestInt" -i 500
# Read historical data
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- historyread -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=TestMachine_001.TestHistoryValue" --start "2026-03-25" --end "2026-03-30"
# Subscribe to alarm events
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- alarms -u opc.tcp://localhost:4840/LmxOpcUa -n "ns=3;s=TestMachine_001" --refresh
# Query redundancy state
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.CLI -- redundancy -u opc.tcp://localhost:4840/LmxOpcUa
```
### Client UI
```bash
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Client.UI
```
The desktop application provides browse tree, subscriptions, alarm monitoring, history reads, and write dialogs. See [Client UI Documentation](docs/Client.UI.md) for details.
---
## Project Structure
```
src/
ZB.MOM.WW.LmxOpcUa.Host/ OPC UA server (.NET Framework 4.8, x86)
Configuration/ Config binding and validation
Domain/ Interfaces, DTOs, enums, mappers
Historian/ Wonderware Historian data source
Metrics/ Performance tracking (rolling P95)
MxAccess/ STA thread, COM interop, subscriptions
GalaxyRepository/ SQL queries, change detection
OpcUa/ Server, node manager, address space, alarms, diff
Status/ HTTP dashboard, health checks
ZB.MOM.WW.LmxOpcUa.Client.Shared/ Shared OPC UA client library (.NET 10)
ZB.MOM.WW.LmxOpcUa.Client.CLI/ Command-line client (.NET 10)
ZB.MOM.WW.LmxOpcUa.Client.UI/ Avalonia desktop client (.NET 10)
tests/
ZB.MOM.WW.LmxOpcUa.Tests/ Server unit + integration tests
ZB.MOM.WW.LmxOpcUa.IntegrationTests/ Server integration tests (live DB)
ZB.MOM.WW.LmxOpcUa.Client.Shared.Tests/ Shared library tests
ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests/ CLI command tests
ZB.MOM.WW.LmxOpcUa.Client.UI.Tests/ UI ViewModel + headless tests
gr/ Galaxy repository docs, SQL queries, schema
```
See [docs/Client.CLI.md](docs/Client.CLI.md) and [docs/Client.UI.md](docs/Client.UI.md).
## Documentation
### Server
### Architecture deep-dives
| Component | Description |
| Topic | Doc |
|---|---|
| [OPC UA Server](docs/OpcUaServer.md) | Endpoint, sessions, security policy, server lifecycle |
| [Address Space](docs/AddressSpace.md) | Hierarchy nodes, variable nodes, primitive grouping, NodeId scheme |
| [Galaxy Repository](docs/GalaxyRepository.md) | SQL queries, deployed package chain, change detection |
| [MXAccess Bridge](docs/MxAccessBridge.md) | STA thread, COM interop, subscriptions, reconnection |
| [Data Type Mapping](docs/DataTypeMapping.md) | Galaxy to OPC UA types, arrays, security classification |
| [Read/Write Operations](docs/ReadWriteOperations.md) | Value reads, writes, access level enforcement, array element writes |
| [Subscriptions](docs/Subscriptions.md) | Ref-counted MXAccess subscriptions, data change dispatch |
| [Alarm Tracking](docs/AlarmTracking.md) | AlarmConditionState nodes, InAlarm monitoring, event reporting |
| [Historical Data Access](docs/HistoricalDataAccess.md) | Historian data source, HistoryReadRaw, HistoryReadProcessed |
| [Incremental Sync](docs/IncrementalSync.md) | Diff computation, subtree teardown/rebuild, subscription preservation |
| [Configuration](docs/Configuration.md) | appsettings.json binding, feature flags, validation |
| [Status Dashboard](docs/StatusDashboard.md) | HTTP server, health checks, metrics reporting |
| [Service Hosting](docs/ServiceHosting.md) | TopShelf, startup/shutdown sequence, error handling |
| [Security](docs/security.md) | Transport security profiles, certificate trust, production hardening |
| [Redundancy](docs/Redundancy.md) | Non-transparent warm/hot redundancy, ServiceLevel, paired deployment |
| OPC UA server composition, namespace fan-out, Polly invoker | [docs/OpcUaServer.md](docs/OpcUaServer.md) |
| Address space layout | [docs/AddressSpace.md](docs/AddressSpace.md) |
| Read / Write dispatch (driver vs virtual vs scripted-alarm) | [docs/ReadWriteOperations.md](docs/ReadWriteOperations.md) |
| Incremental sync (driver-backend rediscovery + config publishes) | [docs/IncrementalSync.md](docs/IncrementalSync.md) |
| Service hosting (Server + Admin + optional historian sidecar) | [docs/ServiceHosting.md](docs/ServiceHosting.md) |
| Security (transport, LDAP, certificates) | [docs/security.md](docs/security.md) |
| Redundancy | [docs/Redundancy.md](docs/Redundancy.md) |
| Status dashboard | [docs/StatusDashboard.md](docs/StatusDashboard.md) |
### Client
### Drivers
| Component | Description |
| Topic | Doc |
|---|---|
| [Client CLI](docs/Client.CLI.md) | Connect, browse, read, write, subscribe, historyread, alarms, redundancy commands |
| [Client UI](docs/Client.UI.md) | Avalonia desktop client: browse, subscribe, alarms, history, write values |
| Driver specs (per-driver capability surface, config, addressing) | [docs/v2/driver-specs.md](docs/v2/driver-specs.md) |
| Galaxy driver | [docs/drivers/Galaxy.md](docs/drivers/Galaxy.md) |
| Modbus / S7 / AbCip / AbLegacy / TwinCAT / FOCAS / OpcUaClient | [docs/drivers/](docs/drivers/) |
| Galaxy parity rig (mxaccessgw setup) | [docs/v2/Galaxy.ParityRig.md](docs/v2/Galaxy.ParityRig.md) |
| Galaxy performance + tracing | [docs/v2/Galaxy.Performance.md](docs/v2/Galaxy.Performance.md) |
### Reference
### Clients
- [Galaxy Repository Queries](gr/CLAUDE.md) — SQL queries for hierarchy, attributes, and change detection
- [Data Type Mapping](gr/data_type_mapping.md) — Galaxy to OPC UA type mapping with security classification
| Topic | Doc |
|---|---|
| Client CLI | [docs/Client.CLI.md](docs/Client.CLI.md) |
| Client UI (Avalonia desktop) | [docs/Client.UI.md](docs/Client.UI.md) |
### v1 archive
The original v1 in-process MXAccess docs (Galaxy.Host topology,
Configuration env vars, AlarmTracking, DataTypeMapping,
HistoricalDataAccess, Subscriptions, etc.) are preserved under
[docs/v1/](docs/v1/) — historical reference only. PR 7.2 retired the
v1 architecture on 2026-04-30; current state is documented in the
sections above.
## License
ZB.MOM.WW.OtOpcUa.slnx
+9 -12
View File
@@ -9,17 +9,16 @@
<Project Path="src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Server/ZB.MOM.WW.OtOpcUa.Server.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Admin/ZB.MOM.WW.OtOpcUa.Admin.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Modbus/ZB.MOM.WW.OtOpcUa.Driver.Modbus.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Addressing/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Addressing.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.S7/ZB.MOM.WW.OtOpcUa.Driver.S7.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.AbCip/ZB.MOM.WW.OtOpcUa.Driver.AbCip.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Shared/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Shared.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Client.Shared/ZB.MOM.WW.OtOpcUa.Client.Shared.csproj"/>
<Project Path="src/ZB.MOM.WW.OtOpcUa.Client.CLI/ZB.MOM.WW.OtOpcUa.Client.CLI.csproj"/>
@@ -44,12 +43,11 @@
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Server.Tests/ZB.MOM.WW.OtOpcUa.Server.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Admin.Tests/ZB.MOM.WW.OtOpcUa.Admin.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Admin.E2ETests/ZB.MOM.WW.OtOpcUa.Admin.E2ETests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.TestSupport/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.TestSupport.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.E2E/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.E2E.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Tests/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client.Tests/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Addressing.Tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Addressing.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.IntegrationTests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.IntegrationTests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Cli.Common.Tests/ZB.MOM.WW.OtOpcUa.Driver.Cli.Common.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Cli.Tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Cli.Tests.csproj"/>
@@ -65,8 +63,7 @@
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Shared.Tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Shared.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host.Tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests/ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.Tests/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.Tests.csproj"/>
<Project Path="tests/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.IntegrationTests/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.IntegrationTests.csproj"/>
_p54.json
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@@ -1 +0,0 @@
{"title":"Phase 3 PR 54 -- Siemens S7 Modbus TCP quirks research doc","body":"## Summary\n\nAdds `docs/v2/s7.md` (485 lines) covering Siemens SIMATIC S7 family Modbus TCP behavior. Mirrors the `docs/v2/dl205.md` template for future per-quirk implementation PRs.\n\n## Key findings for the implementation track\n\n- **No fixed memory map** — every S7 Modbus server is user-wired via `MB_SERVER`/`MODBUSCP`/`MODBUSPN` library blocks. Driver must accept per-site config, not assume a vendor layout.\n- **MB_SERVER requires non-optimized DBs** (STATUS `0x8383` if optimized). Most common field bug.\n- **Word order default = ABCD** (opposite of DL260). Driver's S7 profile default must be `ByteOrder.BigEndian`, not `WordSwap`.\n- **One port per MB_SERVER instance** — multi-client requires parallel FBs on 503/504/… Most clients assume port 502 multiplexes (wrong on S7).\n- **CP 343-1 Lean is server-only**, requires the `2XV9450-1MB00` license.\n- **FC20/21/22/23/43 all return Illegal Function** on every S7 variant — driver must not attempt FC23 bulk-read optimization for S7.\n- **STOP-mode behavior non-deterministic** across firmware bands — treat both read/write STOP-mode responses as unavailable.\n\nTwo items flagged as unconfirmed rumour (V2.0+ float byte-order claim, STOP-mode caching location).\n\nNo code, no tests — implementation lands in PRs 56+.\n\n## Test plan\n- [x] Doc renders as markdown\n- [x] 31 citations present\n- [x] Section structure matches dl205.md template","head":"phase-3-pr54-s7-research-doc","base":"v2"}
_p55.json
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@@ -1 +0,0 @@
{"title":"Phase 3 PR 55 -- Mitsubishi MELSEC Modbus TCP quirks research doc","body":"## Summary\n\nAdds `docs/v2/mitsubishi.md` (451 lines) covering MELSEC Q/L/iQ-R/iQ-F/FX3U Modbus TCP behavior. Mirrors `docs/v2/dl205.md` template for per-quirk implementation PRs.\n\n## Key findings for the implementation track\n\n- **Module naming trap** — `QJ71MB91` is SERIAL RTU, not TCP. TCP module is `QJ71MT91`. Surface clearly in driver docs.\n- **No canonical mapping** — per-site 'Modbus Device Assignment Parameter' block (up to 16 entries). Treat mapping as runtime config.\n- **X/Y hex vs octal depends on family** — Q/L/iQ-R use HEX (X20 = decimal 32); FX/iQ-F use OCTAL (X20 = decimal 16). Helper must take a family selector.\n- **Word order CDAB default** across all MELSEC families (opposite of Siemens S7). Driver Mitsubishi profile default: `ByteOrder.WordSwap`.\n- **D-registers binary by default** (opposite of DL205's BCD default). Caller opts in to `Bcd16`/`Bcd32` when ladder uses BCD.\n- **FX5U needs firmware ≥ 1.060** for Modbus TCP server — older is client-only.\n- **FX3U-ENET vs FX3U-ENET-P502 vs FX3U-ENET-ADP** — only the middle one binds port 502; the last has no Modbus at all. Common operator mis-purchase.\n- **QJ71MT91 does NOT support FC22 / FC23** — iQ-R / iQ-F do. Bulk-read optimization must gate on capability.\n- **STOP-mode writes configurable** on Q/L/iQ-R/iQ-F (default accept), always rejected on FX3U-ENET.\n\nThree unconfirmed rumours flagged separately.\n\nNo code, no tests — implementation lands in PRs 58+.\n\n## Test plan\n- [x] Doc renders as markdown\n- [x] 17 citations present\n- [x] Per-model test naming matrix included (`Mitsubishi_QJ71MT91_*`, `Mitsubishi_FX5U_*`, `Mitsubishi_FX3U_ENET_*`, shared `Mitsubishi_Common_*`)","head":"phase-3-pr55-mitsubishi-research-doc","base":"v2"}
docs/AlarmTracking.md
+107 -106
View File
@@ -1,128 +1,129 @@
# Alarm Tracking
# Alarm tracking — v2 final architecture
Alarm surfacing is an optional driver capability exposed via `IAlarmSource` (`src/ZB.MOM.WW.OtOpcUa.Core.Abstractions/IAlarmSource.cs`). Drivers whose backends have an alarm concept implement it — today: Galaxy (MXAccess alarms), FOCAS (CNC alarms), OPC UA Client (A&C events from the upstream server). Modbus / S7 / AB CIP / AB Legacy / TwinCAT do not implement the interface and the feature is simply absent from their subtrees.
This document describes how OtOpcUa surfaces alarms to OPC UA Part 9
clients after the **alarms-over-gateway** epic
([docs/plans/alarms-over-gateway.md](plans/alarms-over-gateway.md))
landed. The v1 architecture (Galaxy.Host's COM-side `GalaxyAlarmTracker`)
is preserved at [docs/v1/AlarmTracking.md](v1/AlarmTracking.md) for
historical reference.
## IAlarmSource surface
## Three alarm sources, one OPC UA Part 9 surface
```csharp
Task<IAlarmSubscriptionHandle> SubscribeAlarmsAsync(
IReadOnlyList<string> sourceNodeIds, CancellationToken cancellationToken);
Task UnsubscribeAlarmsAsync(IAlarmSubscriptionHandle handle, CancellationToken cancellationToken);
Task AcknowledgeAsync(IReadOnlyList<AlarmAcknowledgeRequest> acknowledgements,
CancellationToken cancellationToken);
event EventHandler<AlarmEventArgs>? OnAlarmEvent;
```
| Source | Driver capability | Path |
|----------------------------------|--------------------------|------|
| **Galaxy MxAccess (driver-native)** | `GalaxyDriver : IAlarmSource` | gateway → worker → MxAccess alarm sink → `MX_EVENT_FAMILY_ON_ALARM_TRANSITION` → `EventPump` → driver `OnAlarmEvent` → `AlarmConditionService` |
| **Galaxy sub-attribute fallback** | `IWritable` writes to `$Alarm*` sub-attributes | gateway data subscription → driver `OnDataChange` → `DriverNodeManager` ConditionSink → `AlarmConditionService` |
| **Scripted alarms** | `Phase7EngineComposer` | server-side script evaluator → `Phase7EngineComposer.RouteToHistorianAsync` + `AlarmConditionService` |
The driver fires `OnAlarmEvent` for every transition (`Active`, `Acknowledged`, `Inactive`) with an `AlarmEventArgs` carrying the source node id, condition id, alarm type, message, severity (`AlarmSeverity` enum), and source timestamp.
All three converge on `AlarmConditionService` (`src/ZB.MOM.WW.OtOpcUa.Server/Alarms/AlarmConditionService.cs`),
which owns the OPC UA Part 9 state machine and dispatches transitions
to the OPC UA condition node managers. Driver-native transitions take
precedence over sub-attribute synthesis when both arrive for the same
condition — the dedup logic prefers the richer driver-native record
because it carries the full operator + raise-time + category metadata
that the value-driven path collapses.
## AlarmSurfaceInvoker
## Galaxy driver path (driver-native)
`AlarmSurfaceInvoker` (`src/ZB.MOM.WW.OtOpcUa.Core/Resilience/AlarmSurfaceInvoker.cs`) wraps the three mutating surfaces through `CapabilityInvoker`:
Restored in PR B.2 of the epic. `GalaxyDriver` implements
`IAlarmSource` with these surfaces:
- `SubscribeAlarmsAsync` / `UnsubscribeAlarmsAsync` run through the `DriverCapability.AlarmSubscribe` pipeline — retries apply under the tier configuration.
- `AcknowledgeAsync` runs through `DriverCapability.AlarmAcknowledge` which does NOT retry per decision #143. A timed-out ack may have already registered at the plant floor; replay would silently double-acknowledge.
- `SubscribeAlarmsAsync(sourceNodeIds)` → returns a sentinel handle.
The driver doesn't multiplex per source-node-id today; every
active handle observes the gateway's alarm-event stream. The
server-side `AlarmConditionService` filters by source-node before
raising the OPC UA condition.
- `UnsubscribeAlarmsAsync(handle)` → symmetric handle removal.
- `AcknowledgeAsync(requests)` → routes one gateway RPC per
acknowledgement through `IGalaxyAlarmAcknowledger`. Production
uses `GatewayGalaxyAlarmAcknowledger` calling
`MxGatewayClient.AcknowledgeAlarmAsync` (PR E.2 SDK method).
- `OnAlarmEvent` → bridges `EventPump.OnAlarmTransition` (PR B.1)
onto `AlarmEventArgs`. Suppressed when no alarm subscription is
active so untracked transitions don't leak through.
Multi-host fan-out: when the driver implements `IPerCallHostResolver`, each source node id is resolved individually and batches are grouped by host so a dead PLC inside a multi-device driver doesn't poison sibling breakers. Single-host drivers fall back to `IDriver.DriverInstanceId` as the pipeline-key host.
The proto contract carries the rich payload — alarm full reference,
source-object reference, alarm-type-name, transition kind (Raise /
Acknowledge / Clear / Retrigger), severity (raw MxAccess scale),
original raise timestamp, transition timestamp, operator user,
operator comment, alarm category, description. `MxAccessSeverityMapper`
(PR B.1) translates the raw severity onto the four-bucket
`AlarmSeverity` ladder — boundaries match v1's `GalaxyAlarmTracker`
so customers see no surprise re-classification.
## Condition-node creation via CapturingBuilder
The richer fields surface on `Core.Abstractions.AlarmEventArgs` via
the optional properties added in PR E.7 (`OperatorComment`,
`OriginalRaiseTimestampUtc`, `AlarmCategory`). Consumers that don't
need them are unaffected; consumers that do (Client.UI, Client.CLI
verbose mode) read the new fields when present.
Alarm-condition nodes are materialized at address-space build time. During `GenericDriverNodeManager.BuildAddressSpaceAsync` the builder is wrapped in a `CapturingBuilder` that observes every `Variable()` call. When a driver calls `IVariableHandle.MarkAsAlarmCondition(AlarmConditionInfo)` on a returned handle, the server-side `DriverNodeManager.VariableHandle` creates a sibling `AlarmConditionState` node and returns an `IAlarmConditionSink`. The wrapper stores the sink in `_alarmSinks` keyed by the variable's full reference, then `GenericDriverNodeManager` registers a forwarder on `IAlarmSource.OnAlarmEvent` that routes each push to the matching sink by `SourceNodeId`. Unknown source ids are dropped silently — they may belong to another driver.
## Galaxy sub-attribute fallback
The `AlarmConditionState` layout matches OPC UA Part 9:
For Galaxy templates without `$Alarm*` extensions, the value-driven
path stays in place: `DriverNodeManager` registers an
`AlarmConditionState` per Galaxy variable that bears alarm-bearing
sub-attributes (`InAlarm`, `Acked`, `Priority`, `Description`),
subscribes to those sub-attributes, and synthesizes Part 9 transitions
when the values change. This path operated as the only Galaxy alarm
path between PR 7.2 and the alarms-over-gateway epic; it remains the
fallback today.
- `SourceNode` → the originating variable
- `SourceName` / `ConditionName` → from `AlarmConditionInfo.SourceName`
- Initial state: enabled, inactive, acknowledged, severity per `InitialSeverity`, retain false
- `HasCondition` references wire the source variable ↔ the condition node bidirectionally
When both paths report the same condition,
`AlarmConditionService.AlarmConditionState` keeps the
driver-native record and discards the duplicate sub-attribute
synthesis. Driver-native transitions are richer (carry operator
comment + original raise time) and arrive lower-latency (no
publishing-interval delay on the sub-attribute reads), so they win
the dedup.
Drivers flag alarm-bearing variables at discovery time via `DriverAttributeInfo.IsAlarm = true`. The Galaxy driver, for example, sets this on attributes that have an `AlarmExtension` primitive in the Galaxy repository DB; FOCAS sets it on the CNC alarm register.
## Acknowledge routing
## State transitions
`DriverNodeManager` picks the acknowledger when registering each
condition (PR B.3 logic):
`ConditionSink.OnTransition` runs under the node manager's `Lock` and maps the `AlarmEventArgs.AlarmType` string to Part 9 state:
- Driver implements `IAlarmSource` →
`DriverAlarmSourceAcknowledger` routes the operator comment
through `IAlarmSource.AcknowledgeAsync` via the existing
`AlarmSurfaceInvoker` (Phase 6.1 resilience pipeline; no-retry
per decision #143). End-to-end operator-comment fidelity is
preserved.
- Driver doesn't implement `IAlarmSource` →
`DriverWritableAcknowledger` writes the comment into the
`AckMsgWriteRef` sub-attribute via `IWritable.WriteAsync`. Same
resilience pipeline; collapses the comment into a single string
write at the wire level.
| AlarmType | Action |
|---|---|
| `Active` | `SetActiveState(true)`, `SetAcknowledgedState(false)`, `Retain = true` |
| `Acknowledged` | `SetAcknowledgedState(true)` |
| `Inactive` | `SetActiveState(false)`; `Retain = false` once both inactive and acknowledged |
The OPC UA Part 9 `AlarmConditionState.OnAcknowledge` delegate
already validates the session's `AlarmAck` role before dispatching,
so the gateway-side ack RPC only sees authenticated, authorised
calls.
Severity is remapped: `AlarmSeverity.Low/Medium/High/Critical` → OPC UA numeric 250 / 500 / 700 / 900. `Message.Value` is set from `AlarmEventArgs.Message` on every transition. `ClearChangeMasks(true)` and `ReportEvent(condition)` fire the OPC UA event notification for clients subscribed to any ancestor notifier.
## Historian write-back (non-Galaxy alarms)
## Acknowledge dispatch
Scripted alarms (and any future non-Galaxy `IAlarmSource` like
AB CIP ALMD) route to AVEVA Historian via the Wonderware sidecar:
Alarm acknowledgement initiated by an OPC UA client flows:
- `Phase7Composer.ResolveHistorianSink` resolves an
`IAlarmHistorianWriter` from either a driver that natively
implements it or the DI-registered `WonderwareHistorianClient`
(the sidecar IPC client). Driver-provided wins when both are
present.
- `SqliteStoreAndForwardSink` queues each transition to a local
SQLite database and drains in the background via the resolved
writer.
- Sidecar (PR C.1 + C.2) forwards the events to `aahClientManaged`'s
alarm-event write API; the live SDK call site is pinned during
PR D.1's deploy-rig validation.
1. The SDK invokes the `AlarmConditionState.OnAcknowledge` method delegate.
2. The handler checks the session's roles for `AlarmAck` — drivers never see a request the session wasn't entitled to make.
3. `AlarmSurfaceInvoker.AcknowledgeAsync` is called with the source / condition / comment tuple. The invoker groups by host and runs each batch through the no-retry `AlarmAcknowledge` pipeline.
Galaxy-native alarms with `$Alarm*` extensions reach AVEVA Historian
directly via System Platform's `HistorizeToAveva` toggle on the
alarm primitive — no involvement from OtOpcUa. This sidecar path is
exclusively for non-Galaxy alarm producers.
Drivers return normally for success or throw to signal the ack failed at the backend.
## Cross-references
## EventNotifier propagation
Drivers that want hierarchical alarm subscriptions propagate `EventNotifier.SubscribeToEvents` up the containment chain during discovery — the Galaxy driver flips the flag on every ancestor of an alarm-bearing object up to the driver root, mirroring v1 behavior. Clients subscribed at the driver root, a mid-level folder, or the `Objects/` root see alarm events from every descendant with an `AlarmConditionState` sibling. The driver-root `FolderState` is created in `DriverNodeManager.CreateAddressSpace` with `EventNotifier = SubscribeToEvents | HistoryRead` so alarm event subscriptions and alarm history both have a single natural target.
## ConditionRefresh
The OPC UA `ConditionRefresh` service queues the current state of every retained condition back to the requesting monitored items. `DriverNodeManager` iterates the node manager's `AlarmConditionState` collection and queues each condition whose `Retain.Value == true` — matching the Part 9 requirement.
## Alarm historian sink
Distinct from the live `IAlarmSource` stream and the Part 9 `AlarmConditionState` materialization above, qualifying alarm transitions are **also** persisted to a durable event log for downstream AVEVA Historian ingestion. This is a separate subsystem from the `IHistoryProvider` capability used by `HistoryReadEvents` (see [HistoricalDataAccess.md](HistoricalDataAccess.md#alarm-event-history-vs-ihistoryprovider)): the sink is a *producer* path (server → Historian) that runs independently of any client HistoryRead call.
### `IAlarmHistorianSink`
`src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/IAlarmHistorianSink.cs` defines the intake contract:
```csharp
Task EnqueueAsync(AlarmHistorianEvent evt, CancellationToken cancellationToken);
HistorianSinkStatus GetStatus();
```
`EnqueueAsync` is fire-and-forget from the producer's perspective — it must never block the emitting thread. The event payload (`AlarmHistorianEvent` — same file) is source-agnostic: `AlarmId`, `EquipmentPath`, `AlarmName`, `AlarmTypeName` (Part 9 subtype name), `Severity`, `EventKind` (free-form transition string — `Activated` / `Cleared` / `Acknowledged` / `Confirmed` / `Shelved` / …), `Message`, `User`, `Comment`, `TimestampUtc`.
The sink scope is defined to span every alarm source (plan decision #15: scripted, Galaxy-native, AB CIP ALMD, any future `IAlarmSource`), gated per-alarm by a `HistorizeToAveva` toggle on the producer. Today only `Phase7EngineComposer.RouteToHistorianAsync` (`src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7EngineComposer.cs`) is wired — it subscribes to `ScriptedAlarmEngine.OnEvent` and marshals each emission into `AlarmHistorianEvent`. Galaxy-native alarms continue to reach AVEVA Historian via the driver's direct `aahClientManaged` path and do not flow through the sink; the AB CIP ALMD path remains unwired pending a producer-side integration.
### `SqliteStoreAndForwardSink`
Default production implementation (`src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/SqliteStoreAndForwardSink.cs`). A local SQLite queue absorbs every `EnqueueAsync` synchronously; a background `Timer` drains batches asynchronously to an `IAlarmHistorianWriter` so operator actions are never blocked on historian reachability.
Queue schema (single table `Queue`): `RowId PK autoincrement`, `AlarmId`, `EnqueuedUtc`, `PayloadJson` (serialized `AlarmHistorianEvent`), `AttemptCount`, `LastAttemptUtc`, `LastError`, `DeadLettered` (bool), plus `IX_Queue_Drain (DeadLettered, RowId)`. Default capacity `1_000_000` non-dead-lettered rows; oldest rows evict with a WARN log past the cap.
Drain cadence: `StartDrainLoop(tickInterval)` arms a periodic timer. `DrainOnceAsync` reads up to `batchSize` rows (default 100) in `RowId` order and forwards them through `IAlarmHistorianWriter.WriteBatchAsync`, which returns one `HistorianWriteOutcome` per row:
| Outcome | Action |
|---|---|
| `Ack` | Row deleted. |
| `PermanentFail` | Row flipped to `DeadLettered = 1` with reason. Peers in the batch retry independently. |
| `RetryPlease` | `AttemptCount` bumped; row stays queued. Drain worker enters `BackingOff`. |
Writer-side exceptions treat the whole batch as `RetryPlease`.
Backoff ladder on `RetryPlease` (hard-coded): 1s → 2s → 5s → 15s → 60s cap. Reset to 0 on any batch with no retries. `CurrentBackoff` exposes the current step for instrumentation; the drain timer itself fires on `tickInterval`, so the ladder governs write cadence rather than timer period.
Dead-letter retention defaults to 30 days (plan decision #21). `PurgeAgedDeadLetters` runs each drain pass and deletes rows whose `LastAttemptUtc` is past the cutoff. `RetryDeadLettered()` is an operator action that clears `DeadLettered` + resets `AttemptCount` on every dead-lettered row so they rejoin the main queue.
### Composition and writer resolution
`Phase7Composer.ResolveHistorianSink` (`src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7Composer.cs`) scans the registered drivers for one that implements `IAlarmHistorianWriter`. Today that is `GalaxyProxyDriver` via `GalaxyHistorianWriter` (`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy/Ipc/GalaxyHistorianWriter.cs`), which forwards batches over the Galaxy.Host pipe to the `aahClientManaged` alarm schema. When a writer is found, a `SqliteStoreAndForwardSink` is instantiated against `%ProgramData%/OtOpcUa/alarm-historian-queue.db` with a 2 s drain tick and the writer attached. When no driver provides a writer the fallback is the DI-registered `NullAlarmHistorianSink` (`src/ZB.MOM.WW.OtOpcUa.Server/Program.cs`), which silently discards and reports `HistorianDrainState.Disabled`.
### Status and observability
`GetStatus()` returns `HistorianSinkStatus(QueueDepth, DeadLetterDepth, LastDrainUtc, LastSuccessUtc, LastError, DrainState)` — two `COUNT(*)` scalars plus last-drain telemetry. `DrainState` is one of `Disabled` / `Idle` / `Draining` / `BackingOff`.
The Admin UI `/alarms/historian` page surfaces this through `HistorianDiagnosticsService` (`src/ZB.MOM.WW.OtOpcUa.Admin/Services/HistorianDiagnosticsService.cs`), which also exposes `TryRetryDeadLettered` — it calls through to `SqliteStoreAndForwardSink.RetryDeadLettered` when the live sink is the SQLite implementation and returns 0 otherwise.
## Key source files
- `src/ZB.MOM.WW.OtOpcUa.Core.Abstractions/IAlarmSource.cs` — capability contract + `AlarmEventArgs`
- `src/ZB.MOM.WW.OtOpcUa.Core/Resilience/AlarmSurfaceInvoker.cs` — per-host fan-out + no-retry ack
- `src/ZB.MOM.WW.OtOpcUa.Core/OpcUa/GenericDriverNodeManager.cs` — `CapturingBuilder` + alarm forwarder
- `src/ZB.MOM.WW.OtOpcUa.Server/OpcUa/DriverNodeManager.cs` — `VariableHandle.MarkAsAlarmCondition` + `ConditionSink`
- `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/Backend/Alarms/GalaxyAlarmTracker.cs` — Galaxy-specific alarm-event production
- `src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/IAlarmHistorianSink.cs` — historian sink intake contract + `AlarmHistorianEvent` + `HistorianSinkStatus` + `IAlarmHistorianWriter`
- `src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/SqliteStoreAndForwardSink.cs` — durable queue + drain worker + backoff ladder + dead-letter retention
- `src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7EngineComposer.cs` — `RouteToHistorianAsync` wires scripted-alarm emissions into the sink
- `src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7Composer.cs` — `ResolveHistorianSink` selects `SqliteStoreAndForwardSink` vs `NullAlarmHistorianSink`
- `src/ZB.MOM.WW.OtOpcUa.Admin/Services/HistorianDiagnosticsService.cs` — Admin UI `/alarms/historian` status + retry-dead-lettered operator action
- Plan: [docs/plans/alarms-over-gateway.md](plans/alarms-over-gateway.md)
- v1 archive: [docs/v1/AlarmTracking.md](v1/AlarmTracking.md)
- Galaxy driver: [docs/drivers/Galaxy.md](drivers/Galaxy.md)
- Phase 7 scripting + alarming: [docs/v2/implementation/phase-7-scripting-and-alarming.md](v2/implementation/phase-7-scripting-and-alarming.md)
- Security + ACL: [docs/Security.md](Security.md)
docs/Driver.FOCAS.Cli.md
+17 -21
View File
@@ -5,27 +5,22 @@ protocol. Uses the **same** `FocasDriver` the OtOpcUa server does — PMC R/G/F
file registers, axis bits, parameters, and macro variables — all through
`FocasAddressParser` syntax.
Sixth of the driver test-client CLIs, added alongside the Tier-C isolation
work tracked in task #220.
Sixth of the driver test-client CLIs.
## Architecture note
FOCAS is a Tier-C driver: `Fwlib32.dll` is a proprietary 32-bit Fanuc library
with a documented habit of crashing its hosting process on network errors.
The target runtime deployment splits the driver into an in-process
`FocasProxyDriver` (.NET 10 x64) and an out-of-process `Driver.FOCAS.Host`
(.NET 4.8 x86 Windows service) that owns the DLL — see
[v2/implementation/focas-isolation-plan.md](v2/implementation/focas-isolation-plan.md)
and
[v2/implementation/phase-6-1-resilience-and-observability.md](v2/implementation/phase-6-1-resilience-and-observability.md)
for topology + supervisor / respawn / back-pressure design.
FOCAS is an in-process driver. The pure-managed `WireFocasClient`
speaks the FOCAS2 binary protocol directly over TCP:8193, removing the
Tier-C process-isolation split that the historical P/Invoke + out-of-
process Host arrangement required. The CLI loads `FocasDriver` with
`WireFocasClientFactory` and talks to the CNC without any native
components.
The CLI skips the proxy and loads `FocasDriver` directly (via
`FwlibFocasClientFactory`, which P/Invokes `Fwlib32.dll` in the CLI's own
process). There is **no public simulator** for FOCAS; a meaningful probe
requires a real CNC + a licensed `Fwlib32.dll` on `PATH` (or next to the
executable). On a dev box without the DLL, every wire call surfaces as
`BadCommunicationError` — still useful as a "CLI wire-up is correct" signal.
A dev-friendly mock is available — start
`tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/docker-compose.yml`
and point `--cnc-host` at `localhost` for end-to-end CLI exercises
without a real CNC. See
[drivers/FOCAS-Test-Fixture.md](drivers/FOCAS-Test-Fixture.md).
## Build + run
@@ -152,7 +147,8 @@ fails.
**"Why did this macro flip?"** → `subscribe` to the macro, let the
operator reproduce the cycle, watch the HH:mm:ss.fff timeline.
**"Is the Fwlib32 DLL wired up?"** → `probe` against any host. A
`DllNotFoundException` surfacing as `BadCommunicationError` with a
matching `Last error` line means the driver is loading but the DLL is
missing; anything else means a transport-layer problem.
**"Can I reach the CNC on TCP:8193?"** → `probe` against any host. A
`BadCommunicationError` means the wire client couldn't open a socket
(firewall / wrong host / FOCAS Ethernet option unlicensed on the CNC).
`BadDeviceFailure` after a successful connect means the CNC is rejecting
the session setup — check the CNC's FOCAS option and password settings.
docs/Driver.Modbus.Cli.md
+34
View File
@@ -119,3 +119,37 @@ address.
**"What's the right byte order for this family?"** → `read` with
`--byte-order BigEndian`, then with `--byte-order WordSwap`. The one that
gives plausible values is the correct one for that device.
## v2 addressing grammar
The driver accepts the industry-standard tag-address grammar so you can
paste tag spreadsheets from Wonderware / Kepware / Ignition without
per-row manual translation. Full reference + grammar rules:
[`docs/v2/modbus-addressing.md`](v2/modbus-addressing.md).
Quick examples:
```
40001 HoldingRegisters[0], Int16
400001 same, 6-digit form
40001:F Float32
40001:F:CDAB Float32 word-swapped
40001:STR20 20-char ASCII string
40001:S:5 Int16[5] array (3-field shorthand)
40001:F:CDAB:10 Float32[10] with explicit word-swap (4-field strict)
40001.5 bit 5 of HR[0]
HR1:I Int32 via mnemonic region prefix (matches Wonderware)
C100 Coil 100 (mnemonic, 1-based)
V2000:F:CDAB DL205 V-memory at PDU 1024 + Float32 + word-swap (Family=DL205)
D100:I MELSEC D-register 100, Int32 (Family=MELSEC)
```
**Type-code reminder** (post-#146): `:I` is **Int32** (matches Wonderware
DASMBTCP + Ignition `HRI`). The explicit Int16 code is `:S`. Bare HR/IR
with no type still defaults to Int16. Pre-#146 codes `:DI` / `:L` /
`:UDI` / `:UL` / `:LI` / `:ULI` / `:LBCD` are removed; configs that use
them get a clear "Unknown type code" diagnostic at parse time.
In `DriverConfig` JSON, set the per-tag `addressString` field instead of
the structured `region` + `address` + `dataType` fields. Both styles can
coexist within one driver instance.
docs/Driver.TwinCAT.Cli.md
+39 -4
View File
@@ -1,9 +1,9 @@
# `otopcua-twincat-cli` — Beckhoff TwinCAT test client
Ad-hoc probe / read / write / subscribe tool for Beckhoff TwinCAT 2 / TwinCAT 3
runtimes via ADS. Uses the **same** `TwinCATDriver` the OtOpcUa server does
(`Beckhoff.TwinCAT.Ads` package). Native ADS notifications by default;
`--poll-only` falls back to the shared `PollGroupEngine`.
Ad-hoc probe / read / write / subscribe / browse tool for Beckhoff TwinCAT 2 /
TwinCAT 3 runtimes via ADS. Uses the **same** `TwinCATDriver` the OtOpcUa
server does (`Beckhoff.TwinCAT.Ads` package). Native ADS notifications by
default; `--poll-only` falls back to the shared `PollGroupEngine`.
Fifth (final) of the driver test-client CLIs.
@@ -50,6 +50,13 @@ caller interpret semantics.
### `probe`
Per-command flags:
| Flag | Default | Purpose |
|---|---|---|
| `-s` / `--symbol` | **required** | Symbol path to probe (e.g. `MAIN.bRunning`) |
| `--type` | `DInt` | Declared data type — see the [Data types](#data-types) list |
```powershell
# Local TwinCAT 3, probe a canonical global
otopcua-twincat-cli probe -n 127.0.0.1.1.1 -s "TwinCAT_SystemInfoVarList._AppInfo.OnlineChangeCnt"
@@ -89,6 +96,14 @@ Structure writes refused — drop to driver config JSON for those.
### `subscribe`
Per-command flags:
| Flag | Default | Purpose |
|---|---|---|
| `-s` / `--symbol` | **required** | Symbol path — same format as `read` |
| `-t` / `--type` | `DInt` | Declared data type |
| `-i` / `--interval-ms` | `1000` | Publishing interval in **milliseconds** — native mode passes this as the ADS `NotificationSettings.CycleTime` |
```powershell
# Native ADS notifications (default) — PLC pushes on its own cycle
otopcua-twincat-cli subscribe -n 192.168.1.40.1.1 -s GVL.Counter -t DInt -i 500
@@ -99,3 +114,23 @@ otopcua-twincat-cli subscribe -n 192.168.1.40.1.1 -s GVL.Counter -t DInt -i 500
The subscribe banner announces which mechanism is in play — "ADS notification"
or "polling" — so it's obvious in screen-recorded bug reports.
### `browse`
Walks the controller's symbol table via ADS `SymbolLoaderFactory` (same path
`TwinCATDriver.DiscoverAsync` takes when `EnableControllerBrowse = true`).
Output filters to symbols whose type maps onto the driver's atomic surface —
UDTs / function-block instances don't appear.
| Flag | Default | Purpose |
|---|---|---|
| `--prefix` | _(none)_ | Case-sensitive instance-path prefix filter (e.g. `GVL_Fixture`) |
| `--max` | `500` | Max symbols to print. `0` = unbounded |
```powershell
# Everything under a single GVL
otopcua-twincat-cli browse -n 192.168.1.40.1.1 --prefix GVL_Fixture
# Full dump (beware: flat-mode walks on a real controller can top 10k symbols)
otopcua-twincat-cli browse -n 192.168.1.40.1.1 --max 0
```
docs/README.md
+20 -14
View File
@@ -11,9 +11,8 @@ The project was originally called **LmxOpcUa** (a single-driver Galaxy/MXAccess
- **Core** owns the OPC UA stack, address space, session/security/subscription machinery.
- **Drivers** plug in via capability interfaces in `ZB.MOM.WW.OtOpcUa.Core.Abstractions`: `IDriver`, `IReadable`, `IWritable`, `ITagDiscovery`, `ISubscribable`, `IHostConnectivityProbe`, `IAlarmSource`, `IHistoryProvider`, `IPerCallHostResolver`. Each driver opts into whichever it supports.
- **Server** is the OPC UA endpoint process (net10, x64). Hosts every driver except Galaxy in-process; talks to Galaxy via a named pipe because MXAccess COM is 32-bit-only.
- **Server** is the OPC UA endpoint process (net10, AnyCPU). Hosts every driver in-process. The Galaxy driver reaches MXAccess via gRPC to a separately-installed **mxaccessgw** sidecar (sibling repo); it is no longer hosted from this repo.
- **Admin** is the Blazor Server operator UI (net10, x64). Owns the Config DB draft/publish flow, ACL + role-grant authoring, fleet status + `/metrics` scrape endpoint.
- **Galaxy.Host** is a .NET Framework 4.8 x86 Windows service that wraps MXAccess COM on an STA thread for the Galaxy driver.
## Where to find what
@@ -24,11 +23,11 @@ The project was originally called **LmxOpcUa** (a single-driver Galaxy/MXAccess
| [OpcUaServer.md](OpcUaServer.md) | Top-level server architecture — Core, driver dispatch, Config DB, generations |
| [AddressSpace.md](AddressSpace.md) | `GenericDriverNodeManager` + `ITagDiscovery` + `IAddressSpaceBuilder` |
| [ReadWriteOperations.md](ReadWriteOperations.md) | OPC UA Read/Write → `CapabilityInvoker` → `IReadable`/`IWritable` |
| [Subscriptions.md](Subscriptions.md) | Monitored items → `ISubscribable` + per-driver subscription refcount |
| [AlarmTracking.md](AlarmTracking.md) | `IAlarmSource` + `AlarmSurfaceInvoker` + OPC UA alarm conditions |
| [DataTypeMapping.md](DataTypeMapping.md) | Per-driver `DriverAttributeInfo` → OPC UA variable types |
| [Subscriptions.md](v1/Subscriptions.md) | Monitored items → `ISubscribable` + per-driver subscription refcount (v1 archive) |
| [AlarmTracking.md](v1/AlarmTracking.md) | `IAlarmSource` + `AlarmSurfaceInvoker` + OPC UA alarm conditions (v1 archive) |
| [DataTypeMapping.md](v1/DataTypeMapping.md) | Per-driver `DriverAttributeInfo` → OPC UA variable types (v1 archive — live mapping is in `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DataTypeMap.cs`) |
| [IncrementalSync.md](IncrementalSync.md) | Address-space rebuild on redeploy + `sp_ComputeGenerationDiff` |
| [HistoricalDataAccess.md](HistoricalDataAccess.md) | `IHistoryProvider` as a per-driver optional capability |
| [HistoricalDataAccess.md](v1/HistoricalDataAccess.md) | `IHistoryProvider` as a per-driver optional capability (v1 archive) |
| [VirtualTags.md](VirtualTags.md) | `Core.Scripting` + `Core.VirtualTags` — Roslyn script sandbox, engine, dispatch alongside driver tags |
| [ScriptedAlarms.md](ScriptedAlarms.md) | `Core.ScriptedAlarms` — script-predicate `IAlarmSource` + Part 9 state machine |
@@ -36,7 +35,7 @@ Two Core subsystems are shipped without a dedicated top-level doc; see the secti
| Project | See |
|---------|-----|
| `Core.AlarmHistorian` | [AlarmTracking.md](AlarmTracking.md) § Alarm historian sink |
| `Core.AlarmHistorian` | [AlarmTracking.md](v1/AlarmTracking.md) § Alarm historian sink (v1 archive) |
| `Analyzers` (Roslyn OTOPCUA0001) | [security.md](security.md) § OTOPCUA0001 Analyzer |
### Drivers
@@ -44,8 +43,8 @@ Two Core subsystems are shipped without a dedicated top-level doc; see the secti
| Doc | Covers |
|-----|--------|
| [drivers/README.md](drivers/README.md) | Index of the eight shipped drivers + capability matrix |
| [drivers/Galaxy.md](drivers/Galaxy.md) | Galaxy driver — MXAccess bridge, Host/Proxy split, named-pipe IPC |
| [drivers/Galaxy-Repository.md](drivers/Galaxy-Repository.md) | Galaxy-specific discovery via the ZB SQL database |
| [drivers/Galaxy.md](drivers/Galaxy.md) | Galaxy driver — in-process gRPC client to the mxaccessgw sidecar |
| [v1/drivers/Galaxy-Repository.md](v1/drivers/Galaxy-Repository.md) | Galaxy-specific discovery via the ZB SQL database (v1 archive — the gateway owns this path now) |
For Modbus / S7 / AB CIP / AB Legacy / TwinCAT / FOCAS / OPC UA Client specifics, see [v2/driver-specs.md](v2/driver-specs.md).
@@ -53,10 +52,10 @@ For Modbus / S7 / AB CIP / AB Legacy / TwinCAT / FOCAS / OPC UA Client specifics
| Doc | Covers |
|-----|--------|
| [Configuration.md](Configuration.md) | appsettings bootstrap + Config DB + Admin UI draft/publish |
| [Configuration.md](v1/Configuration.md) | appsettings bootstrap + Config DB + Admin UI draft/publish (v1 archive — `OTOPCUA_GALAXY_*` env vars now live in mxaccessgw config) |
| [security.md](security.md) | Transport security profiles, LDAP auth, ACL trie, role grants, OTOPCUA0001 analyzer |
| [Redundancy.md](Redundancy.md) | `RedundancyCoordinator`, `ServiceLevelCalculator`, apply-lease, Prometheus metrics |
| [ServiceHosting.md](ServiceHosting.md) | Three-process deploy (Server + Admin + Galaxy.Host) install/uninstall |
| [ServiceHosting.md](ServiceHosting.md) | Two-process deploy (Server + Admin) install/uninstall, plus the optional `OtOpcUaWonderwareHistorian` sidecar |
| [StatusDashboard.md](StatusDashboard.md) | Pointer — superseded by [v2/admin-ui.md](v2/admin-ui.md) |
### Client tooling
@@ -79,10 +78,10 @@ For Modbus / S7 / AB CIP / AB Legacy / TwinCAT / FOCAS / OPC UA Client specifics
|-----|--------|
| [reqs/HighLevelReqs.md](reqs/HighLevelReqs.md) | HLRs — numbered system-level requirements |
| [reqs/OpcUaServerReqs.md](reqs/OpcUaServerReqs.md) | OPC UA server-layer reqs |
| [reqs/ServiceHostReqs.md](reqs/ServiceHostReqs.md) | Per-process hosting reqs |
| [v1/reqs/ServiceHostReqs.md](v1/reqs/ServiceHostReqs.md) | Per-process hosting reqs (v1 archive — only `OtOpcUa` server hosting remains in scope post-PR-7.2) |
| [reqs/ClientRequirements.md](reqs/ClientRequirements.md) | Client CLI + UI reqs |
| [reqs/GalaxyRepositoryReqs.md](reqs/GalaxyRepositoryReqs.md) | Galaxy-scoped repository reqs |
| [reqs/MxAccessClientReqs.md](reqs/MxAccessClientReqs.md) | Galaxy-scoped MXAccess reqs |
| [v1/reqs/GalaxyRepositoryReqs.md](v1/reqs/GalaxyRepositoryReqs.md) | Galaxy-scoped repository reqs (v1 archive — owned by mxaccessgw today) |
| [v1/reqs/MxAccessClientReqs.md](v1/reqs/MxAccessClientReqs.md) | Galaxy-scoped MXAccess reqs (v1 archive — owned by mxaccessgw today) |
| [reqs/StatusDashboardReqs.md](reqs/StatusDashboardReqs.md) | Pointer — superseded by Admin UI |
## Implementation history (`docs/v2/`)
@@ -96,4 +95,11 @@ Design decisions + phase plans + execution notes. Load-bearing cross-references
- [v2/driver-specs.md](v2/driver-specs.md) — per-driver addressing + quirks for every shipped protocol
- [v2/dev-environment.md](v2/dev-environment.md) — dev-box bootstrap
- [v2/test-data-sources.md](v2/test-data-sources.md) — integration-test simulator matrix (includes the pinned libplctag `ab_server` version for AB CIP tests)
- [v2/multi-host-dispatch.md](v2/multi-host-dispatch.md) — per-PLC circuit breakers (Phase 6.1 decision #144)
- [v2/v2-release-readiness.md](v2/v2-release-readiness.md) — release-readiness tracker
- [v2/lmx-followups.md](v2/lmx-followups.md) — historical Galaxy-bridge follow-ups (pre-PR-7.2)
- [v2/implementation/phase-*-*.md](v2/implementation/) — per-phase execution plans with exit-gate evidence
## v1 archive
The v1 in-process MXAccess architecture (Galaxy.Host + Galaxy.Proxy + Galaxy.Shared, .NET 4.8 x86 COM, the `OtOpcUaGalaxyHost` Windows service) was retired in PR 7.2 (2026-04-30, commit `ae7106d`). Docs that described that shape are kept under [v1/](v1/) as historical record — see [v1/README.md](v1/README.md) for the index.
docs/ServiceHosting.md
+41 -112
View File
@@ -2,132 +2,61 @@
## Overview
A production OtOpcUa deployment runs **three processes**, each with a distinct runtime, platform target, and install surface:
A production OtOpcUa deployment runs **two or three processes**, each
with a distinct runtime and install surface:
| Process | Project | Runtime | Platform | Responsibility |
|---|---|---|---|---|
| **OtOpcUa Server** | `src/ZB.MOM.WW.OtOpcUa.Server` | .NET 10 | x64 | Hosts the OPC UA endpoint; loads every non-Galaxy driver in-process; exposes `/healthz`. |
| **OtOpcUa Server** | `src/ZB.MOM.WW.OtOpcUa.Server` | .NET 10 | x64 | Hosts the OPC UA endpoint; loads every driver in-process (Modbus, S7, AbCip, AbLegacy, TwinCAT, FOCAS, OPC UA Client, Galaxy via mxaccessgw); exposes `/healthz`. |
| **OtOpcUa Admin** | `src/ZB.MOM.WW.OtOpcUa.Admin` | .NET 10 (ASP.NET Core / Blazor Server) | x64 | Operator UI for Config DB editing + fleet status, SignalR hubs (`FleetStatusHub`, `AlertHub`), Prometheus `/metrics`. |
| **OtOpcUa Galaxy.Host** | `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host` | .NET Framework 4.8 | x86 (32-bit) | Hosts MXAccess COM on a dedicated STA thread with a Win32 message pump; exposes a named-pipe IPC surface consumed by `Driver.Galaxy.Proxy` inside the Server process. |
| **OtOpcUa Wonderware Historian** *(optional)* | `src/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware` | .NET Framework 4.8 | x86 (32-bit) | Out-of-process sidecar exposing the Wonderware Historian SDK over a named pipe. Required only when `Historian:Wonderware:Enabled=true` in `appsettings.json`. |
The x86 / .NET Framework 4.8 constraint applies **only** to Galaxy.Host because the MXAccess toolkit DLLs (`Program Files (x86)\ArchestrA\Framework\bin`) are 32-bit-only COM. Every other driver (Modbus, S7, OpcUaClient, AbCip, AbLegacy, TwinCAT, FOCAS) runs in-process in the 64-bit Server.
Galaxy access uses a separately-installed **mxaccessgw** running out
of a sibling repo (`c:\Users\dohertj2\Desktop\mxaccessgw\`) — see
`docs/v2/Galaxy.ParityRig.md` for setup. The mxaccessgw owns the
MXAccess COM bitness constraint (its worker is x86 net48); nothing
in the OtOpcUa repo carries that constraint anymore. PR 7.2 retired
the legacy in-process `Galaxy.Host` / `Galaxy.Proxy` / `Galaxy.Shared`
projects + the `OtOpcUaGalaxyHost` Windows service.
## Server process
## OtOpcUa Server
`src/ZB.MOM.WW.OtOpcUa.Server/Program.cs` uses the generic host:
Hosted via `Microsoft.Extensions.Hosting` with `AddWindowsService`
(decision #30 — replaced TopShelf in v2). The host's `Build()`
returns immediately when launched interactively (e.g. `dotnet run`)
but blocks for SCM signals when running as a Windows service.
```csharp
var builder = Host.CreateApplicationBuilder(args);
builder.Services.AddSerilog();
builder.Services.AddWindowsService(o => o.ServiceName = "OtOpcUa");
…
builder.Services.AddHostedService<OpcUaServerService>();
builder.Services.AddHostedService<HostStatusPublisher>();
```
In-process drivers are registered at startup in `Program.cs`'s
`DriverFactoryRegistry` block; the `DriverInstance` rows in the
central Config DB select which driver factories materialise into
live `IDriver` instances. See `docs/v2/driver-specs.md` for the
per-driver `DriverConfig` JSON shapes.
`OpcUaServerService` is a `BackgroundService` (decision #30 — TopShelf from v1 was replaced by the generic-host `AddWindowsService` wrapper; no TopShelf dependency remains in any csproj). It owns:
## OtOpcUa Admin
1. Config bootstrap — reads `Node:NodeId`, `Node:ClusterId`, `Node:ConfigDbConnectionString`, `Node:LocalCachePath` from `appsettings.json`.
2. `NodeBootstrap` — pulls the latest published generation from the Config DB into the LiteDB local cache (`LiteDbConfigCache`) so the node starts even if the central DB is briefly unreachable.
3. `DriverHost` — instantiates configured driver instances from the generation, wires each through `CapabilityInvoker` resilience pipelines.
4. `OpcUaApplicationHost` — builds the OPC UA endpoint, applies `OpcUaServerOptions` + `LdapOptions`, registers `AuthorizationGate` at dispatch.
5. `HostStatusPublisher` — a second hosted service that heartbeats `DriverHostStatus` rows so the Admin UI Fleet view sees the node.
Same hosting model; runs the Blazor Server UI + SignalR hubs.
Reads from the same Config DB the Server writes to.
### Installation
## OtOpcUa Wonderware Historian (optional)
Same executable, different modes driven by the .NET generic-host `AddWindowsService` wrapper:
When `Historian:Wonderware:Enabled=true`, the Server speaks to a
sidecar that wraps the Wonderware Historian SDK (which is .NET
Framework only). The pipe IPC contract is in
`src/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client/Contracts/`
and the sidecar's pipe handler lives at
`src/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware/Pipe/`.
| Mode | Invocation |
|---|---|
| Console | `ZB.MOM.WW.OtOpcUa.Server.exe` |
| Install as Windows service | `sc create OtOpcUa binPath="C:\Program Files\OtOpcUa\Server\ZB.MOM.WW.OtOpcUa.Server.exe" start=auto` |
| Start | `sc start OtOpcUa` |
| Stop | `sc stop OtOpcUa` |
| Uninstall | `sc delete OtOpcUa` |
Install via the `-InstallWonderwareHistorian` switch on
`scripts/install/Install-Services.ps1`.
### Health endpoints
## Install / Uninstall
The Server exposes `/healthz` + `/readyz` used by (a) the Admin `FleetStatusPoller` as input to Fleet status and (b) `PeerReachabilityTracker` in a peer Server process as the HTTP side of the peer-reachability probe.
- `scripts/install/Install-Services.ps1` — installs `OtOpcUa` and
optionally `OtOpcUaWonderwareHistorian`.
- `scripts/install/Uninstall-Services.ps1` — stops + removes both,
plus `OtOpcUaGalaxyHost` if a pre-7.2 rig still carries it.
## Admin process
## Logging
`src/ZB.MOM.WW.OtOpcUa.Admin/Program.cs` is a stock `WebApplication`. Highlights:
- Cookie auth (`CookieAuthenticationDefaults`, scheme name `OtOpcUa.Admin`) + Blazor Server (`AddInteractiveServerComponents`) + SignalR.
- Authorization policies gated by `AdminRoles`: `ConfigViewer`, `ConfigEditor`, `FleetAdmin` (see `Services/AdminRoles.cs`). `CanEdit` policy requires `ConfigEditor` or `FleetAdmin`; `CanPublish` requires `FleetAdmin`.
- `OtOpcUaConfigDbContext` registered against `ConnectionStrings:ConfigDb`.
- Scoped services: `ClusterService`, `GenerationService`, `EquipmentService`, `UnsService`, `NamespaceService`, `DriverInstanceService`, `NodeAclService`, `PermissionProbeService`, `AclChangeNotifier`, `ReservationService`, `DraftValidationService`, `AuditLogService`, `HostStatusService`, `ClusterNodeService`, `EquipmentImportBatchService`, `ILdapGroupRoleMappingService`.
- Singleton `RedundancyMetrics` (meter name `ZB.MOM.WW.OtOpcUa.Redundancy`) + `CertTrustService` (promotes rejected client certs in the Server's PKI store to trusted via the Admin Certificates page).
- `LdapAuthService` bound to `Authentication:Ldap` — same LDAP flow as ScadaLink CentralUI for visual parity.
- SignalR hubs mapped at `/hubs/fleet` and `/hubs/alerts`; `FleetStatusPoller` runs as a hosted service and pushes `RoleChanged`, host status, and alert events.
- OpenTelemetry → Prometheus exporter at `/metrics` when `Metrics:Prometheus:Enabled=true` (default). Pull-based means no Collector required in the common K8s deploy.
### Installation
Deployed as an ASP.NET Core service; the generic-host `AddWindowsService` wrapper (or IIS reverse-proxy for multi-node fleets) provides install/uninstall. Listens on whatever `ASPNETCORE_URLS` specifies.
## Galaxy.Host process
`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/Program.cs` is a .NET Framework 4.8 x86 console executable. Configuration comes from environment variables supplied by the supervisor (`Driver.Galaxy.Proxy.Supervisor`):
| Env var | Purpose |
|---|---|
| `OTOPCUA_GALAXY_PIPE` | Pipe name the host listens on (default `OtOpcUaGalaxy`). |
| `OTOPCUA_ALLOWED_SID` | SID of the Server process's principal; anyone else is refused during the handshake. |
| `OTOPCUA_GALAXY_SECRET` | Per-spawn shared secret the client must present in the Hello frame. |
| `OTOPCUA_GALAXY_BACKEND` | `mxaccess` (default), `db` (ZB-only, no COM), `stub` (in-memory; for tests). |
| `OTOPCUA_GALAXY_ZB_CONN` | SQL connection string to the ZB Galaxy repository. |
| `OTOPCUA_HISTORIAN_*` | Optional Wonderware Historian SDK config if Historian is enabled for this node. |
The host spins up `StaPump` (the STA thread with message pump), creates the MXAccess `LMXProxyServer` COM object on that thread, and handles all COM calls there; the IPC layer marshals work items via `PostThreadMessage`.
### Pipe security
`PipeServer` builds a `PipeAcl` from the provided `SecurityIdentifier` + uses `NamedPipeServerStream` with `maxNumberOfServerInstances: 1`. The handshake requires a matching shared secret in the first Hello frame; callers whose SID doesn't match `OTOPCUA_ALLOWED_SID` are rejected before any frame is processed. **By design the pipe ACL denies BUILTIN\Administrators** — live smoke tests must therefore run from a non-elevated shell that matches the allowed principal. The installed dev host (`OtOpcUaGalaxyHost`) runs as `dohertj2` with the secret at `.local/galaxy-host-secret.txt`.
### Installation
NSSM-wrapped (the Non-Sucking Service Manager) because the executable itself is a plain console app, not a `ServiceBase` Windows service. The supervisor then adopts the child process over the pipe after install. Install/uninstall commands follow the NSSM pattern:
```bash
nssm install OtOpcUaGalaxyHost "C:\Program Files (x86)\OtOpcUa\Galaxy.Host\ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host.exe"
nssm set OtOpcUaGalaxyHost ObjectName .\dohertj2 <password>
nssm set OtOpcUaGalaxyHost AppEnvironmentExtra OTOPCUA_GALAXY_BACKEND=mxaccess OTOPCUA_GALAXY_SECRET=… OTOPCUA_ALLOWED_SID=…
nssm start OtOpcUaGalaxyHost
```
(Exact values for the environment block are generated by the Admin UI + committed alongside `.local/galaxy-host-secret.txt` on the dev box.)
## Inter-process communication
```
┌──────────────────────────┐ LDAP bind (Authentication:Ldap) ┌──────────────────────────┐
│ OtOpcUa Admin (x64) │ ─────────────────────────────────────────────▶│ LDAP / AD │
│ Blazor Server + SignalR │ └──────────────────────────┘
│ /metrics (Prometheus) │ FleetStatusPoller → ClusterNode poll
│ │ ─────────────────────────────────────────────▶┌──────────────────────────┐
│ │ Cluster/Generation/ACL writes │ Config DB (SQL Server) │
└──────────────────────────┘ ─────────────────────────────────────────────▶│ OtOpcUaConfigDbContext │
▲ └──────────────────────────┘
│ SignalR ▲
│ (role change, │ sp_GetCurrentGenerationForCluster
│ host status, │ sp_PublishGeneration
│ alerts) │
┌──────────────────────────┐ │
│ OtOpcUa Server (x64) │ ──────────────────────────────────────────────────────────┘
│ OPC UA endpoint │
│ Non-Galaxy drivers │ Named pipe (OtOpcUaGalaxy) ┌──────────────────────────┐
│ Driver.Galaxy.Proxy │ ─────────────────────────────────────────────▶│ Galaxy.Host (x86 .NFx) │
│ │ SID + shared-secret handshake │ STA + message pump │
│ /healthz /readyz │ │ MXAccess COM │
└──────────────────────────┘ │ Historian SDK (opt) │
└──────────────────────────┘
```
## appsettings.json boundary
Each process reads its own `appsettings.json` for **bootstrap only** — connection strings, LDAP bind config, transport security profile, redundancy node id, logging. The authoritative configuration tree (drivers, UNS, tags, ACLs) lives in the Config DB and is edited through the Admin UI. See [`Configuration.md`](Configuration.md) for the split.
## Development bootstrap
For the Windows install steps (SQL Server in Docker, .NET 10 SDK, .NET Framework 4.8 SDK, Docker Desktop WSL 2 backend, EF Core CLI, first-run migration), see [`docs/v2/dev-environment.md`](v2/dev-environment.md).
Serilog with rolling-daily file sinks. Each service writes to
`%ProgramData%\OtOpcUa\<service>-*.log` plus stdout (NSSM-friendly).
docs/drivers/FOCAS-Test-Fixture.md
+113 -96
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@@ -2,132 +2,149 @@
Coverage map + gap inventory for the FANUC FOCAS2 CNC driver.
**TL;DR: there is no integration fixture.** Every test uses a
`FakeFocasClient` injected via `IFocasClientFactory`. Fanuc's FOCAS library
(`Fwlib32.dll`) is closed-source proprietary with no public simulator;
CNC-side behavior is trusted from field deployments.
**Status:** as of 2026-04-24, OtOpcUa speaks FOCAS2 directly over TCP
via the pure-managed [`Focas.Wire`](https://github.com/Ladder99/focas-mock/tree/main/dotnet/Focas.Wire)
client. Integration tests run the managed driver end-to-end against the
vendored `focas-mock` Python server (at
[`tests/.../Docker/focas-mock/`](../../tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/focas-mock/VENDORED.md))
whose native FOCAS Ethernet responder is verified PDU-by-PDU against the
real `fwlibe64.dll`.
## What the fixture is
No shim DLL, no P/Invoke, no licensed binary — any dev box or CI runner
with Docker can run the full fixture end-to-end.
Nothing at the integration layer.
`tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/` is unit-only. The driver ships
as Tier C (process-isolated) per `docs/v2/driver-stability.md` because the
FANUC DLL has known crash modes; tests can't replicate those in-process.
Hardware validation against a real CNC is still useful to catch
series-specific firmware quirks (see [§ Hardware-only gaps](#hardware-only-gaps))
but the mock's wire responder covers every FOCAS call OtOpcUa issues.
## What it actually covers (unit only)
## What the fixture covers
- `FocasCapabilityTests` — data-type mapping (PMC bit / word / float,
macro variable types, parameter types)
- `FocasCapabilityMatrixTests` — per-CNC-series range validation (macro
/ parameter / PMC letter + number) across 16i / 0i-D / 0i-F /
30i / PowerMotion. See [`docs/v2/focas-version-matrix.md`](../v2/focas-version-matrix.md)
for the authoritative matrix. 46 theory cases lock every documented
range boundary — widening a range without updating the doc fails a
test.
- `FocasReadWriteTests` — read + write against the fake, FOCAS native status
→ OPC UA StatusCode mapping
### Unit layer (no container required)
`tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/` uses `FakeFocasClient`
injected via `IFocasClientFactory`:
- `FocasCapabilityTests` — data-type mapping (PMC bit / byte / word /
long / float / double, macro variable types, parameter types)
- `FocasCapabilityMatrixTests` — per-CNC-series range validation across
16i / 0i-D / 0i-F / 30i / Power Motion, 46 theory cases locking every
documented range boundary. See
[`docs/v2/focas-version-matrix.md`](../v2/focas-version-matrix.md).
- `FocasReadWriteTests` — read / write contract against the fake, FOCAS
native status → OPC UA `StatusCode` mapping
- `FocasScaffoldingTests` — `IDriver` lifecycle + multi-device routing
- `FocasPmcBitRmwTests` — PMC bit read-modify-write synchronization (per-byte
`SemaphoreSlim`, mirrors the AB / Modbus pattern from #181)
- `FwlibNativeHelperTests` — `Focas32.dll` → `Fwlib32.dll` bridge validation
+ P/Invoke signature validation
- `FocasPmcBitRmwTests` — PMC bit read-modify-write synchronisation
- `FocasAlarmProjectionTests` — raise / clear diffing, severity mapping
- `FocasHandleRecycleTests` — proactive session recycle cadence
Capability surfaces whose contract is verified: `IDriver`, `IReadable`,
`IWritable`, `ITagDiscovery`, `ISubscribable`, `IHostConnectivityProbe`,
`IPerCallHostResolver`.
`ITagDiscovery`, `ISubscribable`, `IHostConnectivityProbe`,
`IPerCallHostResolver`, `IAlarmSource`. `IWritable` intentionally
returns `BadNotWritable` — OtOpcUa is read-only against FOCAS.
Pre-flight validation runs in `FocasDriver.InitializeAsync` — configs
referencing out-of-range addresses fail at load time with a diagnostic
message naming the CNC series + documented limit. This closes the
cheap half of the hardware-free stability gap; Tier-C process
isolation (task #220) closes the expensive half — see
[`docs/v2/implementation/focas-isolation-plan.md`](../v2/implementation/focas-isolation-plan.md).
message naming the CNC series + documented limit.
## What it does NOT cover
### Integration layer (mock only, no CNC, no shim)
### 1. FOCAS wire traffic
`tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/` drives the
managed `FocasDriver` end-to-end. A single gate:
No FOCAS TCP frame is sent. `Fwlib32.dll`'s TCP-to-FANUC-gateway exchange is
closed-source; the driver trusts the P/Invoke layer per #193. Real CNC
correctness is trusted from field deployments.
**Docker compose up** — tests skip when the TCP probe to
`localhost:8193` fails with a pointer to the compose command.
### 2. Alarm / parameter-change callbacks
When the mock is up, `WireFocasClient` dials it over TCP exactly like a
real CNC, and the mock's native FOCAS Ethernet responder replies with
binary PDUs against the documented command IDs. Covered assertions:
FOCAS has no push model — the driver polls via the shared `PollGroupEngine`.
There are no CNC-initiated callbacks to test; the absence is by design.
- Session open / close (`cnc_allclibhndl3` + `cnc_freelibhndl`)
- Parameter read-back after `mock_patch` seed → `cnc_rdparam`
- Macro read-back after seed → `cnc_rdmacro` (scaled-decimal
translation verified)
- PMC range read after seed → `pmc_rdpmcrng`
- `IAlarmSource` raise + clear transitions after `mock_patch`
alarm-list changes → `cnc_rdalmmsg2`
- Fixed-tree bootstrap: identity / axes / spindle / program / timers /
servo meters populate via `cnc_sysinfo`, `cnc_rdaxisname`,
`cnc_rdspdlname`, `cnc_rddynamic2`, `cnc_exeprgname2`,
`cnc_rdblkcount`, `cnc_rdopmode`, `cnc_rdsvmeter`, `cnc_rdspload`,
`cnc_rdspmaxrpm`, `cnc_rdtimer`
- Per-series profile selection via `mock_load_profile` — tests can
pin one profile and assert series-gated capability suppression
### 3. Macro / ladder variable types
### E2E script (CLI)
FANUC has CNC-specific extensions (macro variables `#100-#999`, system
variables `#1000-#5000`, PMC timers / counters / keep-relays) whose
per-address semantics differ across 0i-F / 30i / 31i / 32i Series. Driver
covers the common address shapes; per-model quirks are not stressed.
`scripts/e2e/test-focas.ps1` drives the Client.CLI against a running
OtOpcUa server. Accepts:
### 4. Model-specific behavior
- `-CncHost` / `-CncPort` for real hardware
- `-ProfileName <compose-profile>` for the Docker mock
- `-Series <csv>` for per-series matrix mode
- `-HandleLeakCycles <N>` for handle-leak stress
- Alarm retention across power cycles (model-specific CNC behavior)
- Parameter range enforcement (CNC rejects out-of-range writes)
- MTB (machine tool builder) custom screens that expose non-standard data
## Hardware-only gaps
### 5. Tier-C process isolation — architecture shipped, Fwlib32 integration hardware-gated
The mock has parity with the real `fwlibe64.dll` for the calls OtOpcUa
issues, but a real CNC can still surface things a reference
implementation can't:
The Tier-C architecture is now in place as of PRs #169–#173 (FOCAS
PR A–E, task #220):
1. **Series-specific firmware quirks** — alarm retention across power
cycles, parameter range enforcement by the CNC (not the driver),
MTB custom screens, series-specific option bits. Each series has
documented behaviours that only a bench CNC exercises.
2. **Wire-level stress** — burst reads, concurrent device writes,
network-partition recovery under load. The mock handles these
correctly but production behaviour is the source of truth.
3. **Transient operational states** — alarm floods, emergency-stop
transitions, power-on resync. These are easy to stub but hard to
cover comprehensively in the mock.
- `Driver.FOCAS.Shared` carries MessagePack IPC contracts
- `Driver.FOCAS.Host` (.NET 4.8 x86 Windows service via NSSM) accepts
a connection on a strictly-ACL'd named pipe + dispatches frames to
an `IFocasBackend`
- `Driver.FOCAS.Ipc.IpcFocasClient` implements the `IFocasClient` DI
seam by forwarding over IPC — swap the DI registration and the
driver runs Tier-C with zero other changes
- `Driver.FOCAS.Supervisor.FocasHostSupervisor` owns the spawn +
heartbeat + respawn + 3-in-5min crash-loop breaker + sticky alert
- `Driver.FOCAS.Host.Stability.PostMortemMmf` ↔
`Driver.FOCAS.Supervisor.PostMortemReader` — ring-buffer of the
last ~1000 IPC operations survives a Host crash
Track the close-out under task #54 (live-CNC smoke). When the rig
lands, the hardware path runs alongside the mock path; the mock
stays as the CI quality gate.
The one remaining gap is the production `FwlibHostedBackend`: an
`IFocasBackend` implementation that wraps the licensed
`Fwlib32.dll` P/Invoke. That's hardware-gated on task #222 — we
need a CNC on the bench (or the licensed FANUC developer kit DLL
with a test harness) to validate it. Until then, the Host ships
`FakeFocasBackend` + `UnconfiguredFocasBackend`. Setting
`OTOPCUA_FOCAS_BACKEND=fake` lets operators smoke-test the whole
Tier-C pipeline end-to-end without any CNC.
## When to trust each layer
## When to trust FOCAS tests, when to reach for a rig
| Question | Unit | Integration (mock) | Real CNC |
| --- | :---: | :---: | :---: |
| "Does PMC address `R100.3` route to the right bit?" | ✅ | ✅ | ✅ |
| "Does the Fanuc status → OPC UA StatusCode map cover every documented code?" | ✅ (contract) | ✅ | ✅ |
| "Does `FocasDriver.ReadAsync` correctly decode a seeded parameter?" | no | ✅ | ✅ |
| "Does `IAlarmSource` fire raise + clear events?" | ✅ (Fake) | ✅ (wire) | ✅ |
| "Does a real read against a 30i Series return correct bytes?" | no | ✅ (via profile) | ✅ (required) |
| "Do series-specific firmware quirks behave as documented?" | no | no | ✅ (required) |
| "Does the driver survive real network partitions?" | no | partial (socket kill) | ✅ (required) |
| Question | Unit tests | Real CNC |
| --- | --- | --- |
| "Does PMC address `R100.3` route to the right bit?" | yes | yes |
| "Does the FANUC status → OPC UA StatusCode map cover every documented code?" | yes (contract) | yes |
| "Does a real read against a 30i Series return correct bytes?" | no | yes (required) |
| "Does `Fwlib32.dll` crash on concurrent reads?" | no | yes (stress) |
| "Do macro variables round-trip across power cycles?" | no | yes (required) |
## Running the integration fixture
## Follow-up candidates
```powershell
# 1) Start the mock on a chosen profile.
docker compose -f tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/docker-compose.yml up -d
1. **Nothing public** — Fanuc's FOCAS Developer Kit ships an emulator DLL
but it's under NDA + tied to licensed dev-kit installations; can't
redistribute for CI.
2. **Lab rig** — used FANUC 0i-F simulator controller (or a retired machine
tool) on a dedicated network; only path that covers real CNC behavior.
3. **Process isolation first** — before trusting FOCAS in production at
scale, shipping the Tier-C out-of-process Host architecture (similar to
Galaxy) is higher value than a CI simulator.
# 2) Run the tests. No shim build, no DLL copy — the driver dials the mock directly.
dotnet test tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/
```
Or use `scripts/integration/run-focas.ps1` which wraps compose up / test
/ compose down and accepts `-Profile <name>` to pin a per-series run.
## Key fixture / config files
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/focas-mock/`
— vendored `focas-mock` Python source + Dockerfile
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/docker-compose.yml`
— per-series compose profiles
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/FocasSimFixture.cs`
— collection fixture + mock admin API client
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/FixedTreePopulatesTests.cs`
— fixed-tree end-to-end tests
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs`
— pure-wire-backend end-to-end tests
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FakeFocasClient.cs` —
in-process fake implementing `IFocasClient`
- `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasCapabilityMatrixTests.cs`
— parameterized theories locking the per-series matrix
- `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasDriver.cs` — ctor takes
`IFocasClientFactory`
in-process unit fake
- `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/Wire/WireFocasClient.cs` — the
managed wire client backing production deployments
- `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasCapabilityMatrix.cs` —
per-CNC-series range validator (the matrix the doc describes)
per-series range validator
- `docs/v2/focas-version-matrix.md` — authoritative range reference
- `docs/v2/implementation/focas-isolation-plan.md` — Tier-C isolation
plan (task #220)
- `docs/v2/driver-stability.md` — Tier C scope + process-isolation rationale
docs/drivers/FOCAS.md
+238
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@@ -0,0 +1,238 @@
# FOCAS Driver
Getting-started guide for the FANUC FOCAS2 driver. This is the short path — for
the exhaustive per-node mapping read [`docs/v2/driver-specs.md §7`](../v2/driver-specs.md),
for the test-harness map read [FOCAS-Test-Fixture.md](FOCAS-Test-Fixture.md).
## What it talks to
FANUC CNCs (0i-D / 0i-F / 0i-MF / 0i-TF / 16i / 30i / 31i / 32i / Power Motion i)
over the proprietary FOCAS2 protocol on TCP port 8193. The wire is spoken
directly by the pure-managed [`Focas.Wire`](https://github.com/Ladder99/focas-mock)
client — no Fwlib64.dll, no P/Invoke, no out-of-process isolation needed.
OtOpcUa is **read-only** against FOCAS; all reads go over the native wire
protocol using the documented command IDs. Writes return
`BadNotWritable` by design.
## Project split
| Project | Target | Role |
|---------|--------|------|
| `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/` | net10.0 | In-process driver — hosts `WireFocasClient` which speaks FOCAS2 over TCP directly |
Previous `Driver.FOCAS.Host` / `Driver.FOCAS.Shared` Tier-C split has been
retired — the managed wire client removes the native-crash blast radius
that justified the out-of-process service.
## Minimum deployment
Register the driver instance in the main server's `appsettings.json`. No
separate service, no DLL deployment, no shared-secret handshake:
```jsonc
"Drivers": {
"focas-cnc-1": {
"Type": "FOCAS",
"Config": {
"Backend": "wire",
"Devices": [
{ "HostAddress": "focas://10.20.30.40:8193", "Series": "ThirtyOne_i" }
],
"Tags": [
{ "Name": "Mode", "DeviceHostAddress": "focas://10.20.30.40:8193",
"Address": "PARAM:3402", "DataType": "Int32", "Writable": false },
{ "Name": "SpndLoad", "DeviceHostAddress": "focas://10.20.30.40:8193",
"Address": "MACRO:500", "DataType": "Float64", "Writable": false }
]
}
}
}
```
The main server opens two TCP sockets per configured device and speaks the
FOCAS2 binary protocol directly. No local privileged components, no
platform bitness constraint — the driver runs on every host OtOpcUa runs
on.
## Address forms
| Form | Example | Meaning |
|------|---------|---------|
| `X0.0` / `R100` / `R100.3` | PMC bit or byte | Letter + number; optional `.bit` for bit access |
| `PARAM:1815` / `PARAM:1815/0` | CNC parameter | Number + optional axis index |
| `MACRO:500` | Custom macro variable | System / user macro variable number |
Addresses are validated against the per-device `Series` at `InitializeAsync` —
a config referencing a number outside the documented range for that series
fails at load time with an error message naming the limit. See
[`docs/v2/focas-version-matrix.md`](../v2/focas-version-matrix.md) for the
authoritative range table.
## Backend selection
The driver picks its client from `Config.Backend`:
| Value | Client | Use it for |
|-------|--------|------------|
| `wire` (default) | `WireFocasClient` | Production — pure-managed FOCAS2 over TCP |
| `unimplemented` / `none` / `stub` | `UnimplementedFocasClientFactory` | Scaffolding a DriverInstance row before the CNC endpoint is reachable |
Previous backends (`fwlib`, `fwlib32`, `ipc`) have been retired along
with `Driver.FOCAS.Host` and the Fwlib P/Invoke path. Configs that still
reference them will throw at startup with a message pointing here.
## Capability surface
| Capability | Wire path | Notes |
|------------|-----------|-------|
| `IReadable` | `ReadAsync` → `cnc_rdpmcrng` / `cnc_rdparam` / `cnc_rdmacro` | One TCP request/response per read; `Focas.Wire` serializes requests on socket 2 internally |
| `IWritable` | returns `BadNotWritable` | OtOpcUa is read-only against FOCAS by design — no `cnc_wrparam` / `pmc_wrpmcrng` / `cnc_wrmacro` path is implemented |
| `ITagDiscovery` | `DiscoverAsync` | Emits `FOCAS/{device}/{tag}` folders per configured device |
| `ISubscribable` | polled via shared `PollGroupEngine` | FOCAS has no push model — subscriptions turn into per-tag polling groups |
| `IHostConnectivityProbe` | periodic `cnc_rdcncstat` | Probe cadence is `Probe.Interval`; transitions fire `OnHostStatusChanged` |
| `IPerCallHostResolver` | lookup in `_tagsByName` | Each call routes to the device of the referenced tag |
| `IAlarmSource` | polled `cnc_rdalmmsg2` via `FocasAlarmProjection` | Opt-in — set `AlarmProjection.Enabled=true`; diffs `(AlarmNumber, Type)` between ticks |
Ack is a no-op — FANUC clears alarms on its own once the underlying condition
resolves, so `AcknowledgeAsync` swallows the batch rather than surfacing
`BadNotSupported`.
## Fixed node tree
Enable a pre-defined hierarchy of CNC nodes populated automatically from
`cnc_sysinfo` + `cnc_rdaxisname` + `cnc_rddynamic2` + related FWLIB calls,
so operators get an out-of-the-box view of identity / axes / program /
timers without declaring per-address tags.
```jsonc
"Config": {
"Devices": [ ... ],
"Tags": [ ... ],
"FixedTree": {
"Enabled": true,
"PollInterval": "00:00:00.250", // fast — per-axis dynamic reads
"ProgramPollInterval": "00:00:01", // medium — program + mode changes
"TimerPollInterval": "00:00:30" // slow — cumulative counters
}
}
```
What gets populated (all under `FOCAS/{deviceHostAddress}/`):
| Subtree | Nodes | Source call |
|---------|-------|-------------|
| `Identity/` | `SeriesNumber`, `Version`, `MaxAxes`, `CncType`, `MtType`, `AxisCount` | `cnc_sysinfo` once at bootstrap |
| `Axes/{name}/` | `AbsolutePosition`, `MachinePosition`, `RelativePosition`, `DistanceToGo`, `ServoLoad` — one folder per discovered axis | `cnc_rdaxisname` once + `cnc_rddynamic2` + `cnc_rdsvmeter` per tick |
| `Axes/FeedRate/Actual`, `Axes/SpindleSpeed/Actual` | Current feed + spindle RPM | `cnc_rddynamic2` |
| `Spindle/{name}/` | `Load` (percentage), `MaxRpm` — one folder per discovered spindle | `cnc_rdspdlname` once + `cnc_rdspload` + `cnc_rdspmaxrpm` |
| `Program/` | `Name` (filename), `ONumber`, `Number`, `MainNumber`, `Sequence`, `BlockCount` | `cnc_exeprgname2` + `cnc_rdblkcount` + cached `cnc_rddynamic2` |
| `OperationMode/` | `Mode` (int), `ModeText` ("AUTO", "MDI", "EDIT", …) | `cnc_rdopmode` |
| `Timers/` | `PowerOnSeconds`, `OperatingSeconds`, `CuttingSeconds`, `CycleSeconds` | `cnc_rdtimer` × 4 |
### Per-series node suppression
The driver probes each optional call once at bootstrap. If the target CNC
returns `EW_FUNC` / `EW_NOOPT` / `EW_VERSION` on the wire, the
corresponding subtree is **not emitted** — the operator doesn't see nodes
that will only ever return `BadDeviceFailure`. Capability suppression
covers `Spindle/`, `Program/` + `OperationMode/`, `Timers/`, and
per-axis `ServoLoad` independently. Identity + `Axes/*` position reads
(which every Fanuc CNC supports) are always emitted.
Position values are scaled integers (matching FOCAS's convention). The
managed side exposes them as `Float64` OPC UA nodes; a future
`cnc_getfigure` integration will add per-axis decimal scaling. Until
then, treat the raw integer as the value the CNC reports and scale on
the client side if decimal precision matters.
**Still user-authored**: `PARAM:6711`, `MACRO:500`, `R100` etc. — specific
numbers whose meaning is MTB-specific. Those go under the device folder
alongside the fixed subtree.
## Alarm projection
Alarm surfacing is **disabled by default** because the polling cost is wasted
on sites that don't consume CNC alarms. Opt in per driver instance:
```jsonc
"Config": {
"Devices": [ ... ],
"Tags": [ ... ],
"AlarmProjection": {
"Enabled": true,
"PollInterval": "00:00:02"
}
}
```
Every alarm transition fires `OnAlarmEvent` with:
- `SourceNodeId` = the device host address (FOCAS has no per-node alarm model;
the CNC exposes a single flat active-alarm list per session)
- `ConditionId` = `"{host}#{Type}:{AlarmNumber}"`
- `AlarmType` = projected from FANUC's `ALM_TYPE_*` (e.g. `Overtravel`, `Servo`,
`Parameter`, `MacroAlarm`)
- `Severity` = Overtravel / Servo / PulseCode → `Critical`; Parameter / Macro
→ `Medium`; everything else → `High`
Cleared alarms fire a second event with `" (cleared)"` appended to the message
so downstream consumers can ignore the clear if they only care about raises.
## Handle recycling
FANUC CNCs have a finite FWLIB handle pool (~5–10 concurrent connections) and
certain series have documented handle-leak bugs that manifest after long uptime.
The driver can proactively close + reopen each device's session on a cadence to
release its slot back to the pool:
```jsonc
"Config": {
"Devices": [ ... ],
"HandleRecycle": {
"Enabled": true,
"Interval": "01:00:00"
}
}
```
Disabled by default — a healthy CNC + driver doesn't need it. Enable when field
experience shows handle exhaustion. Typical tuning: 30 min for sites running
multiple OtOpcUa instances against the same CNC (they share the pool); 6 h for a
single-client deployment. Reads / writes during recycle simply wait for the
reconnect rather than failing — worst case, an operator sees a brief read
latency spike once per cadence.
## Testing
- **Unit tests** — `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/` cover the
driver surface via `FakeFocasClient`. Includes the alarm-projection raise /
clear diffing tests.
- **Integration tests** — `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/`
hold the Docker simulator scaffold; see
[`docs/v2/implementation/focas-wire-protocol.md`](../v2/implementation/focas-wire-protocol.md)
for what the simulator emits vs. real CNC behaviour.
- **E2E script** — `scripts/e2e/test-focas.ps1` stages Host + Proxy + a real
CNC (or the simulator) and exercises connect → read → write → subscribe
round-trips. See [`docs/drivers/FOCAS-Test-Fixture.md`](FOCAS-Test-Fixture.md)
for the coverage map.
## Troubleshooting
| Symptom | Likely cause | Fix |
|---------|--------------|-----|
| `BadCommunicationError` on every read | CNC unreachable on TCP:8193 | Check firewall / LAN reachability; FOCAS Ethernet option must be licensed on the CNC side |
| Every read returns `BadNotWritable` on writes | Expected — OtOpcUa is read-only against FOCAS | If you actually need writes, open a feature request — the driver's managed wire client doesn't expose the write commands |
| `BadOutOfRange` on reads for a macro/parameter | Config address outside the declared `Series` range | Check `docs/v2/focas-version-matrix.md` — either fix the address or widen the `Series` |
| Alarm events never fire | `AlarmProjection.Enabled` left at default (false) | Set it to `true` in the driver config |
## Further reading
- [`docs/v2/driver-specs.md §7`](../v2/driver-specs.md) — full OPC UA node
mapping, pre-defined tag set, per-API notes
- [`docs/v2/focas-version-matrix.md`](../v2/focas-version-matrix.md) —
per-series macro / parameter / PMC range table
- [`docs/v2/implementation/focas-wire-protocol.md`](../v2/implementation/focas-wire-protocol.md)
— captured FOCAS2 wire semantics (magic prefix, handshake, command-id table)
- [upstream `Focas.Wire`](https://github.com/Ladder99/focas-mock/tree/main/dotnet/Focas.Wire)
— the managed client implementation OtOpcUa consumes as a NuGet dependency
docs/drivers/Galaxy.md
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@@ -1,211 +1,104 @@
# Galaxy Driver
The Galaxy driver bridges OtOpcUa to AVEVA System Platform (Wonderware) Galaxies through the `ArchestrA.MxAccess` COM API plus the Galaxy Repository SQL database. It is one driver of seven in the OtOpcUa platform (see [drivers/README.md](README.md) for the full list); all other drivers run in-process in the main Server (.NET 10 x64). Galaxy is the exception — it runs as its own Windows service and talks to the Server over a local named pipe.
The Galaxy driver bridges OtOpcUa to AVEVA System Platform (Wonderware) Galaxies. It is a **Tier-A in-process driver** that runs in the OtOpcUa server's .NET 10 AnyCPU process and speaks gRPC to a separately installed `mxaccessgw` server (sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`). The gateway owns the MXAccess COM apartment, the STA + Win32 message pump, the Galaxy Repository SQL reader, and the Historian SDK — all the bits that need x86 / .NET Framework 4.8 / COM interop. The driver itself is platform-agnostic and contains no COM, no STA thread, and no x86 bitness constraint.
For the decision record on why Galaxy is out-of-process and how the refactor was staged, see [docs/v2/plan.md §4 Galaxy/MXAccess as Out-of-Process Driver](../v2/plan.md). For the full driver spec (addressing, data-type map, config shape), see [docs/v2/driver-specs.md §1](../v2/driver-specs.md).
For the driver spec (capability surface, config shape, addressing), see [docs/v2/driver-specs.md §1](../v2/driver-specs.md). For the gateway setup recipe, see [docs/v2/Galaxy.ParityRig.md](../v2/Galaxy.ParityRig.md). For tracing, metrics, and soak profile, see [docs/v2/Galaxy.Performance.md](../v2/Galaxy.Performance.md).
## Project Split
> **Note**: the related drivers `Galaxy-Repository.md` and `Galaxy-Test-Fixture.md` describe the previous v1 / out-of-process topology and are being moved to `docs/v1/` by a parallel cleanup track. Use `Galaxy.ParityRig.md` and the `mxaccessgw` repo for current testing.
Galaxy ships as three projects:
## Architecture
| Project | Target | Role |
|---------|--------|------|
| `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared/` | .NET Standard 2.0 | IPC contracts (MessagePack records + `MessageKind` enum) referenced by both sides |
| `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/` | .NET Framework 4.8 **x86** | Separate Windows service hosting the MXAccess COM objects, STA thread + Win32 message pump, Galaxy Repository reader, Historian SDK, runtime-probe manager |
| `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy/` | .NET 10 (matches Server) | `GalaxyProxyDriver : IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IAlarmSource, IHistoryProvider, IRediscoverable, IHostConnectivityProbe` — loaded in-process by the Server; every call forwards over the pipe to the Host |
The Shared assembly is the **only** contract between the two runtimes. It carries no COM or SDK references so Proxy (net10) can reference it without dragging x86 code into the Server process.
## Why Out-of-Process
Two reasons drive the split, per `docs/v2/plan.md`:
1. **Bitness constraint.** MXAccess is 32-bit COM only — `ArchestrA.MxAccess.dll` in `Program Files (x86)\ArchestrA\Framework\bin` has no 64-bit variant. The main OtOpcUa Server is .NET 10 x64 (the OPC Foundation stack, SqlClient, and every other non-Galaxy driver target 64-bit). In-process hosting would force the whole Server to x86, which every other driver project would then inherit.
2. **Tier-C stability isolation.** Galaxy is classified Tier C in [docs/v2/driver-stability.md](../v2/driver-stability.md) — the COM runtime, STA thread, Aveva Historian SDK, and SQL queries all have crash/hang modes that can take down the hosting process. Isolating the driver in its own Windows service means a COM deadlock, AccessViolation in an unmanaged Historian DLL, or a runaway SQL query never takes the Server endpoint down. The Proxy-side supervisor restarts the Host with crash-loop circuit-breaker.
The same Tier-C isolation story applies to FOCAS (decision record in `docs/v2/plan.md` §7), which is the second out-of-process driver.
## IPC Transport
`GalaxyProxyDriver` → `GalaxyIpcClient` → named pipe → `Galaxy.Host` pipe server.
- Pipe name: `otopcua-galaxy-{DriverInstanceId}` (localhost-only, no TCP surface)
- Wire format: MessagePack-CSharp, length-prefixed frames
- ACL: pipe is created with a DACL that grants only the Server's service identity; the Admins group is explicitly denied so a live-smoke test running from an elevated shell fails fast rather than silently bypassing the handshake
- Handshake: Proxy presents a shared secret at `OpenSessionRequest`; Host rejects anything else with `MessageKind.OpenSessionResponse{Success=false}`
- Heartbeat: Proxy sends a periodic ping; missed heartbeats trigger the Proxy-side crash-loop supervisor to restart the Host
Every capability call on `GalaxyProxyDriver` (Read, Write, Subscribe, HistoryRead*, etc.) serializes a `*Request`, awaits the matching `*Response` via a `CallAsync<TReq, TResp>` helper, and rehydrates the result into the `Core.Abstractions` shape the Server expects.
## STA Thread Requirement (Host-side)
MXAccess COM objects — `LMXProxyServer` instantiation, `Register`, `AddItem`, `AdviseSupervisory`, `Write`, and cleanup calls — must all execute on the same Single-Threaded Apartment. Calling a COM object from the wrong thread causes marshalling failures or silent data corruption.
`StaComThread` in the Host provides that thread with the apartment state set before the thread starts:
```csharp
_thread = new Thread(ThreadEntry) { Name = "MxAccess-STA", IsBackground = true };
_thread.SetApartmentState(ApartmentState.STA);
```
+---------------------------------------+
| OtOpcUa.Server (.NET 10 AnyCPU) |
| GalaxyDriver (in-process) |
| ITagDiscovery / IReadable / |
| IWritable / ISubscribable / |
| IRediscoverable / |
| IHostConnectivityProbe / |
| IAlarmSource |
+-------------------+-------------------+
|
gRPC (default http://localhost:5120)
|
v
+---------------------------------------+
| mxaccessgw (sibling repo) |
| +-------------------------------+ |
| | MxGateway.Worker (x86 net48) | |
| | STA + WM_APP pump | |
| | ArchestrA.MxAccess COM | |
| | Galaxy Repository SQL | |
| | Wonderware Historian SDK | |
| +-------------------------------+ |
+---------------------------------------+
```
Work items queue via `RunAsync(Action)` or `RunAsync<T>(Func<T>)` into a `ConcurrentQueue<Action>` and post `WM_APP` to wake the pump. Each work item is wrapped in a `TaskCompletionSource` so callers can `await` the result from any thread — including the IPC handler thread that receives the inbound pipe request.
History reads moved server-side in PR 7.2 (`IHistoryRouter`). Galaxy no longer implements `IHistoryProvider` of its own.
## Win32 Message Pump (Host-side)
`IAlarmSource` was retired with PR 7.2 and **restored in PR B.2** of the
alarms-over-gateway epic ([docs/plans/alarms-over-gateway.md](../plans/alarms-over-gateway.md)).
Alarm transitions arrive on the same gateway `StreamEvents` channel as
data-change events under the new `MX_EVENT_FAMILY_ON_ALARM_TRANSITION`
family; acknowledgements route through the gateway's
`AcknowledgeAlarm` RPC. The previous value-driven sub-attribute path
remains as a fallback for Galaxy templates without `$Alarm*`
extensions — the server-side `AlarmConditionService` dedups when both
paths fire on the same condition. See [docs/AlarmTracking.md](../AlarmTracking.md)
for the v2-final architecture.
COM callbacks (`OnDataChange`, `OnWriteComplete`) are delivered through the Windows message loop. `StaComThread` runs a standard Win32 message pump via P/Invoke:
## Project Layout
1. `PeekMessage` primes the message queue (required before `PostThreadMessage` works)
2. `GetMessage` blocks until a message arrives
3. `WM_APP` drains the work queue
4. `WM_APP + 1` drains the queue and posts `WM_QUIT` to exit the loop
5. All other messages go through `TranslateMessage` / `DispatchMessage` for COM callback delivery
The driver ships as a single project: `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/` (.NET 10, AnyCPU). Sub-folders:
Without this pump MXAccess callbacks never fire and the driver delivers no live data.
| Folder | Role |
|--------|------|
| `Browse/` | Static-side discovery: `GalaxyDiscoverer` walks the gateway's hierarchy + attribute-set RPCs, `DataTypeMap` and `SecurityMap` translate Galaxy types and security classifications into OPC UA equivalents, `AlarmRefBuilder` extracts alarm-bearing attribute references for the server-layer alarm engine. `IGalaxyHierarchySource` + `GatewayGalaxyHierarchySource` + `TracedGalaxyHierarchySource` decorate the gateway browse RPC; `IGalaxyDeployWatchSource` + `GatewayGalaxyDeployWatchSource` + `DeployWatcher` drive `IRediscoverable`. |
| `Runtime/` | Live data path: `EventPump` runs the gateway's `StreamEvents` RPC and fans out to subscribers via a bounded channel; `GalaxyMxSession` is the read-side handle; `GatewayGalaxySubscriber` + `GatewayGalaxyDataWriter` (each with a `Traced*` decorator) implement `ISubscribable` / `IWritable`; `SubscriptionRegistry` tracks subscription state for replay; `ReconnectSupervisor` owns the backoff loop and triggers `ReplaySubscriptions` on session loss; `StatusCodeMap` translates gateway StatusCodes to OPC UA; `MxValueDecoder` / `MxValueEncoder` handle scalar + array marshalling; `GalaxyTelemetry` + `GalaxySubscriptionHandle` round out the surface. |
| `Health/` | `HostStatusAggregator` rolls per-platform probe state into the driver's `IHostConnectivityProbe` view; `PerPlatformProbeWatcher` listens on the gateway's per-host status stream; `HostConnectivityForwarder` pushes transitions out to the server's connectivity bus. |
| `Config/` | `GalaxyDriverOptions` and the four nested option records (`GalaxyGatewayOptions`, `GalaxyMxAccessOptions`, `GalaxyRepositoryOptions`, `GalaxyReconnectOptions`). |
## LMXProxyServer COM Object
Project root files:
`MxProxyAdapter` wraps the real `ArchestrA.MxAccess.LMXProxyServer` COM object behind the `IMxProxy` interface so Host unit tests can substitute a fake proxy without requiring the ArchestrA runtime. Lifecycle:
- `GalaxyDriver.cs` — `IDriver` + capability-interface implementation; composes the Browse / Runtime / Health collaborators.
- `GalaxyDriverFactoryExtensions.cs` — DI registration helper used by the server's driver bootstrap.
1. **`Register(clientName)`** — Creates a new `LMXProxyServer` instance, wires up `OnDataChange` and `OnWriteComplete` event handlers, calls `Register` to obtain a connection handle
2. **`Unregister(handle)`** — Unwires event handlers, calls `Unregister`, releases the COM object via `Marshal.ReleaseComObject`
## Capability Surface
## Register / AddItem / AdviseSupervisory Pattern
`GalaxyDriver : IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IRediscoverable, IHostConnectivityProbe, IDisposable`.
Every MXAccess data operation follows a three-step pattern, all executed on the STA thread:
| Capability | Implementation entry point |
|------------|---------------------------|
| `ITagDiscovery` | `Browse/GalaxyDiscoverer.cs` |
| `IRediscoverable` | `Browse/DeployWatcher.cs` |
| `IReadable` | `Runtime/GalaxyMxSession.cs` |
| `IWritable` | `Runtime/GatewayGalaxyDataWriter.cs` |
| `ISubscribable` | `Runtime/GatewayGalaxySubscriber.cs` (driven by `EventPump`) |
| `IHostConnectivityProbe` | `Health/HostStatusAggregator.cs` |
1. **`AddItem(handle, address)`** — Resolves a Galaxy tag reference (e.g., `TestMachine_001.MachineID`) to an integer item handle
2. **`AdviseSupervisory(handle, itemHandle)`** — Subscribes the item for supervisory data-change callbacks
3. The runtime begins delivering `OnDataChange` events
## Configuration
For writes, after `AddItem` + `AdviseSupervisory`, `Write(handle, itemHandle, value, securityClassification)` sends the value; `OnWriteComplete` confirms or rejects. Cleanup reverses: `UnAdviseSupervisory` then `RemoveItem`.
`DriverConfig` JSON binds to `Config/GalaxyDriverOptions.cs`. The four sections are:
## OnDataChange and OnWriteComplete Callbacks
- **`Gateway`** — endpoint, API key secret ref, TLS knobs, connect/call/stream timeouts. `StreamTimeoutSeconds = 0` keeps the long-lived `StreamEvents` RPC open for the driver's lifetime.
- **`MxAccess`** — `ClientName` (must be unique per OtOpcUa instance — redundancy pairs enforce uniqueness at install time), `PublishingIntervalMs` (forwarded as `buffered_update_interval_ms` on subscribe), `WriteUserId` for ArchestrA secured-write, `EventPumpChannelCapacity` (default 50_000 — one second of headroom at 50k tags / 1Hz; tune via the `galaxy.events.dropped` metric).
- **`Repository`** — `DiscoverPageSize`, `WatchDeployEvents`.
- **`Reconnect`** — `InitialBackoffMs`, `MaxBackoffMs`, `ReplayOnSessionLost` (calls the gateway's `ReplaySubscriptions` RPC after reconnect rather than re-issuing subscribe-bulk for every tag).
### OnDataChange
Full per-field descriptions live in `Config/GalaxyDriverOptions.cs`. The full JSON skeleton is reproduced in [docs/v2/driver-specs.md §1](../v2/driver-specs.md).
Fired by the COM runtime on the STA thread when a subscribed tag changes. The handler in `MxAccessClient.EventHandlers.cs`:
## Reconnect + Replay
1. Maps the integer `phItemHandle` back to a tag address via `_handleToAddress`
2. Maps the MXAccess quality code to the internal `Quality` enum
3. Checks `MXSTATUS_PROXY` for error details and adjusts quality
4. Converts the timestamp to UTC
5. Constructs a `Vtq` (Value/Timestamp/Quality) and delivers it to:
- The stored per-tag subscription callback
- Any pending one-shot read completions
- The global `OnTagValueChanged` event (consumed by the Host's subscription dispatcher, which packages changes into `DataChangeEventArgs` and forwards them over the pipe to `GalaxyProxyDriver.OnDataChange`)
`ReconnectSupervisor` owns an exponential-backoff loop bounded by `Reconnect.InitialBackoffMs` / `MaxBackoffMs`. On session loss it tears down the gRPC channel, redials, and — when `ReplayOnSessionLost = true` — calls the gateway's `ReplaySubscriptions` RPC with the cached subscription set from `SubscriptionRegistry` instead of re-subscribing tag-by-tag. The gateway's worker then re-issues `AdviseSupervisory` server-side under the apartment lock.
### OnWriteComplete
## Testing
Fired when the runtime acknowledges or rejects a write. The handler resolves the pending `TaskCompletionSource<bool>` for the item handle. If `MXSTATUS_PROXY.success == 0` the write is considered failed and the error detail is logged.
- **Unit tests**: `tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/` — fakes the gateway gRPC surface; covers Browse, Runtime, Health, and Config in isolation.
- **Parity rig + dev-rig walkthrough**: see [docs/v2/Galaxy.ParityRig.md](../v2/Galaxy.ParityRig.md). The rig stands up a real `mxaccessgw` against a live Galaxy and exercises the full read / write / subscribe / rediscover path.
- **Performance + soak**: see [docs/v2/Galaxy.Performance.md](../v2/Galaxy.Performance.md).
## Reconnection Logic
## Operational Notes
`MxAccessClient` implements automatic reconnection through two mechanisms.
### Monitor loop
`StartMonitor` launches a background task that polls at `MonitorIntervalSeconds`. On each cycle:
- If the state is `Disconnected` or `Error` and `AutoReconnect` is enabled, it calls `ReconnectAsync`
- If connected and a probe tag is configured, it checks the probe staleness threshold
### Reconnect sequence
`ReconnectAsync` performs a full disconnect-then-connect cycle:
1. Increment the reconnect counter
2. `DisconnectAsync` — tear down all active subscriptions (`UnAdviseSupervisory` + `RemoveItem` for each), detach COM event handlers, call `Unregister`, clear all handle mappings
3. `ConnectAsync` — create a fresh `LMXProxyServer`, register, replay all stored subscriptions, re-subscribe the probe tag
Stored subscriptions (`_storedSubscriptions`) persist across reconnects. `ReplayStoredSubscriptionsAsync` iterates the stored entries and calls `AddItem` + `AdviseSupervisory` for each.
## Probe Tag Health Monitoring
A configurable probe tag (e.g., a frequently updating Galaxy attribute) serves as a connection health indicator. After connecting, the client subscribes to the probe tag and records `_lastProbeValueTime` on every `OnDataChange`. The monitor loop compares `DateTime.UtcNow - _lastProbeValueTime` against `ProbeStaleThresholdSeconds`; if the probe has not updated within the window, the connection is assumed stale and a reconnect is forced. This catches scenarios where the COM connection is technically alive but the runtime has stopped delivering data.
## Per-Host Runtime Status Probes (`<Host>.ScanState`)
Separate from the connection-level probe, the driver advises `<HostName>.ScanState` on every deployed `$WinPlatform` and `$AppEngine` in the Galaxy. These probes track per-host runtime state so the Admin UI dashboard can report "this specific Platform / AppEngine is off scan" and the driver can proactively invalidate every OPC UA variable hosted by the stopped object — preventing MXAccess from serving stale Good-quality cached values to clients who read those tags while the host is down.
Enabled by default via `MxAccess.RuntimeStatusProbesEnabled`; see [Configuration](../Configuration.md#mxaccess) for the two config fields.
### How it works
`GalaxyRuntimeProbeManager` lives in `Driver.Galaxy.Host` alongside the rest of the MXAccess code. It is owned by the Host's subscription dispatcher and runs a three-state machine per host (Unknown / Running / Stopped):
1. **Discovery** — After the Host completes `BuildAddressSpace`, the manager filters the hierarchy to rows where `CategoryId == 1` (`$WinPlatform`) or `CategoryId == 3` (`$AppEngine`) and issues `AdviseSupervisory` for `<TagName>.ScanState` on each one. Probes are driver-owned, not ref-counted against client subscriptions, and persist across address-space rebuilds via a `Sync` diff.
2. **Transition predicate** — A probe callback is interpreted as `isRunning = vtq.Quality.IsGood() && vtq.Value is bool b && b`. Everything else (explicit `ScanState = false`, bad quality, communication errors) means **Stopped**.
3. **On-change-only delivery** — `ScanState` is delivered only when the value actually changes. A stably Running host may go hours without a callback. `Tick()` does NOT run a starvation check on Running entries — the only time-based transition is **Unknown → Stopped** when the initial callback hasn't arrived within `RuntimeStatusUnknownTimeoutSeconds` (default 15s). This protects against a probe that fails to resolve at all without incorrectly flipping healthy long-running hosts.
4. **Transport gating** — When `IMxAccessClient.State != Connected`, `GetSnapshot()` forces every entry to `Unknown`. The dashboard shows the Connection panel as the primary signal in that case rather than misleading operators with "every host stopped".
5. **Subscribe failure rollback** — If `SubscribeAsync` throws for a new probe (SDK failure, broker rejection, transport error), the manager rolls back both `_byProbe` and `_probeByGobjectId` so the probe never appears in `GetSnapshot()`. Stability review 2026-04-13 Finding 1.
### Subtree quality invalidation on transition
When a host transitions **Running → Stopped**, the probe manager invokes a callback that walks `_hostedVariables[gobjectId]` — the set of every OPC UA variable transitively hosted by that Galaxy object — and sets each variable's `StatusCode` to `BadOutOfService`. **Stopped → Running** calls `ClearHostVariablesBadQuality` to reset each to `Good` so the next on-change MXAccess update repopulates the value.
The hosted-variables map is built once per `BuildAddressSpace` by walking each object's `HostedByGobjectId` chain up to the nearest Platform or Engine ancestor. A variable hosted by an Engine inside a Platform lands in both the Engine's list and the Platform's list, so stopping the Platform transitively invalidates every descendant Engine's variables.
### Read-path short-circuit (`IsTagUnderStoppedHost`)
The Host's Read handler checks `IsTagUnderStoppedHost(tagRef)` (a reverse-index lookup `_hostIdsByTagRef[tagRef]` → `GalaxyRuntimeProbeManager.IsHostStopped(hostId)`) before the MXAccess round-trip. When the owning host is Stopped, the handler returns a synthesized `DataValue { Value = cachedVar.Value, StatusCode = BadOutOfService }` directly without touching MXAccess. This guarantees clients see a uniform `BadOutOfService` on every descendant tag of a stopped host, regardless of whether they're reading or subscribing.
### Deferred dispatch — the STA deadlock
**Critical**: probe transition callbacks must **not** run synchronously on the STA thread that delivered the `OnDataChange`. `MarkHostVariablesBadQuality` takes the subscription dispatcher lock, which may be held by a worker thread currently inside `Read` waiting on an `_mxAccessClient.ReadAsync()` round-trip that is itself waiting for the STA thread. Classic circular wait — the first real deploy of this feature hung inside 30 seconds from exactly this pattern.
The fix is a deferred-dispatch queue: probe callbacks enqueue the transition onto `ConcurrentQueue<(int GobjectId, bool Stopped)>` and set the existing dispatch signal. The dispatch thread drains the queue inside its existing 100ms `WaitOne` loop — outside any locks held by the STA path — and then calls `MarkHostVariablesBadQuality` / `ClearHostVariablesBadQuality` under its own natural lock acquisition. No circular wait, no STA involvement.
### Dashboard and health surface
- Admin UI **Galaxy Runtime** panel shows per-host state with Name / Kind / State / Since / Last Error columns. Panel color is green (all Running), yellow (any Unknown, none Stopped), red (any Stopped), gray (MXAccess transport disconnected)
- `HealthCheckService.CheckHealth` rolls overall driver health to `Degraded` when any host is Stopped
See [Status Dashboard](../StatusDashboard.md#galaxy-runtime) for the field table and [Configuration](../Configuration.md#mxaccess) for the config fields.
## Request Timeout Safety Backstop
Every sync-over-async site on the OPC UA stack thread that calls into Galaxy (`Read`, `Write`, address-space rebuild probe sync) is wrapped in a bounded `SyncOverAsync.WaitSync(...)` helper with timeout `MxAccess.RequestTimeoutSeconds` (default 30s). Inner `ReadTimeoutSeconds` / `WriteTimeoutSeconds` bounds on the async path are the first line of defense; the outer wrapper is a backstop so a scheduler stall, slow reconnect, or any other non-returning async path cannot park the stack thread indefinitely.
On timeout, the underlying task is **not** cancelled — it runs to completion on the thread pool and is abandoned. This is acceptable because Galaxy IPC clients are shared singletons and the abandoned continuation does not capture request-scoped state. The OPC UA stack receives `StatusCodes.BadTimeout` on the affected operation.
`ConfigurationValidator` enforces `RequestTimeoutSeconds >= 1` and warns when it is set below the inner Read/Write timeouts (operator misconfiguration). Stability review 2026-04-13 Finding 3.
All capability calls at the Server dispatch layer are additionally wrapped by `CapabilityInvoker` (Core/Resilience/) which runs them through a Polly pipeline keyed on `(DriverInstanceId, HostName, DriverCapability)`. `OTOPCUA0001` analyzer enforces the wrap at build time.
## Why Marshal.ReleaseComObject Is Needed
The .NET Framework runtime's garbage collector releases COM references non-deterministically. For MXAccess, delayed release can leave stale COM connections open, preventing clean re-registration. `MxProxyAdapter.Unregister` calls `Marshal.ReleaseComObject(_lmxProxy)` in a `finally` block to immediately drive the COM reference count to zero. This ensures the underlying COM server is freed before a reconnect attempt creates a new instance.
## Tag Discovery and Historical Data
Tag discovery (the Galaxy Repository SQL reader + `LocalPlatform` scope filter) is covered in [Galaxy-Repository.md](Galaxy-Repository.md). The Galaxy driver is `ITagDiscovery` for the Server's bootstrap path and `IRediscoverable` for the on-change-redeploy path.
Historical data access (raw, processed, at-time, events) runs against the Aveva Historian via the `aahClientManaged` SDK and is exposed through the Galaxy driver's `IHistoryProvider` implementation. See [HistoricalDataAccess.md](../HistoricalDataAccess.md).
## Key source files
Host-side (`.NET 4.8 x86`, `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/`):
- `Backend/MxAccess/StaComThread.cs` — STA thread and Win32 message pump
- `Backend/MxAccess/MxAccessClient.cs` — Core client (partial)
- `Backend/MxAccess/MxAccessClient.Connection.cs` — Connect / disconnect / reconnect
- `Backend/MxAccess/MxAccessClient.Subscription.cs` — Subscribe / unsubscribe / replay
- `Backend/MxAccess/MxAccessClient.ReadWrite.cs` — Read and write operations
- `Backend/MxAccess/MxAccessClient.EventHandlers.cs` — `OnDataChange` / `OnWriteComplete` handlers
- `Backend/MxAccess/MxAccessClient.Monitor.cs` — Background health monitor
- `Backend/MxAccess/MxProxyAdapter.cs` — COM object wrapper
- `Backend/MxAccess/GalaxyRuntimeProbeManager.cs` — Per-host `ScanState` probes, state machine, `IsHostStopped` lookup
- `Backend/Historian/HistorianDataSource.cs` — `aahClientManaged` SDK wrapper (see [HistoricalDataAccess.md](../HistoricalDataAccess.md))
- `Ipc/GalaxyIpcServer.cs` — Named-pipe server, message dispatch
- `Domain/IMxAccessClient.cs` — Client interface
Shared (`.NET Standard 2.0`, `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Shared/`):
- `Contracts/MessageKind.cs` — IPC message kinds (`ReadRequest`, `HistoryReadRequest`, `OpenSessionResponse`, …)
- `Contracts/*.cs` — MessagePack DTOs for every request/response pair
Proxy-side (`.NET 10`, `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy/`):
- `GalaxyProxyDriver.cs` — `IDriver`/`ITagDiscovery`/`IReadable`/`IWritable`/`ISubscribable`/`IAlarmSource`/`IHistoryProvider`/`IRediscoverable`/`IHostConnectivityProbe` implementation; every method forwards via `GalaxyIpcClient`
- `Ipc/GalaxyIpcClient.cs` — Named-pipe client, `CallAsync<TReq, TResp>`, reconnect on broken pipe
- `GalaxyProxySupervisor.cs` — Host-process monitor, crash-loop circuit-breaker, Host relaunch
- **MXAccess `ClientName` collisions**: two OtOpcUa instances sharing a `ClientName` cause the older Wonderware session to lose subscription state. Redundancy pairs (decision #149) enforce uniqueness via install scripts.
- **Channel saturation**: `galaxy.events.dropped > 0` indicates `EventPump` is back-pressured. Raise `EventPumpChannelCapacity` or investigate downstream slowness in the server-side fan-out.
- **Connectivity surface**: per-platform probe state is exposed through `IHostConnectivityProbe` and aggregated by the server's connectivity bus — there is no driver-private dashboard surface anymore. The Admin UI's Host Status panel is the consumer.
docs/drivers/README.md
+4 -1
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@@ -26,7 +26,7 @@ Driver type metadata is registered at startup in `DriverTypeRegistry` (`src/ZB.M
| AB CIP | `Driver.AbCip` | A | libplctag CIP | IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IHostConnectivityProbe, IPerCallHostResolver, IAlarmSource | ControlLogix / CompactLogix. Tag discovery uses the `@tags` walker to enumerate controller-scoped + program-scoped symbols; UDT member resolution via the UDT template reader |
| AB Legacy | `Driver.AbLegacy` | A | libplctag PCCC | IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IHostConnectivityProbe, IPerCallHostResolver | SLC 500 / MicroLogix. File-based addressing (`N7:0`, `F8:0`) — no symbol table, tag list is user-authored in the config DB |
| TwinCAT | `Driver.TwinCAT` | B | Beckhoff `TwinCAT.Ads` (`TcAdsClient`) | IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IHostConnectivityProbe, IPerCallHostResolver | The only native-notification driver outside Galaxy — ADS delivers `ValueChangedCallback` events the driver forwards straight to `ISubscribable.OnDataChange` without polling. Symbol tree uploaded via `SymbolLoaderFactory` |
| FOCAS | `Driver.FOCAS` | C | FANUC FOCAS2 (`Fwlib32.dll` P/Invoke) | IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IHostConnectivityProbe, IPerCallHostResolver | Tier C — FOCAS DLL has crash modes that warrant process isolation. CNC-shaped data model (axes, spindle, PMC, macros, alarms) not a flat tag map |
| [FOCAS](FOCAS.md) | `Driver.FOCAS` | A | Pure-managed `FocasWireClient` — FOCAS/2 Ethernet binary protocol on TCP:8193, inlined into the driver assembly | IDriver, ITagDiscovery, IReadable, ISubscribable, IHostConnectivityProbe, IPerCallHostResolver, IAlarmSource | Read-only by design (WriteAsync returns `BadNotWritable`). CNC-shaped data model (axes, spindle, PMC, macros, alarms) not a flat tag map. Previously Tier-C (Host + P/Invoke + shim DLL); retired in the 2026-04-24 migration when the managed wire client landed |
| OPC UA Client | `Driver.OpcUaClient` | B | OPCFoundation `Opc.Ua.Client` | IDriver, ITagDiscovery, IReadable, IWritable, ISubscribable, IAlarmSource, IHistoryProvider, IHostConnectivityProbe | Gateway/aggregation driver. Opens a single `Session` against a remote OPC UA server and re-exposes its address space. Owns its own `ApplicationConfiguration` (distinct from `Client.Shared`) because it's always-on with keep-alive + `TransferSubscriptions` across SDK reconnect, not an interactive CLI |
## Per-driver documentation
@@ -35,6 +35,9 @@ Driver type metadata is registered at startup in `DriverTypeRegistry` (`src/ZB.M
- [Galaxy.md](Galaxy.md) — COM bridge, STA pump, IPC, runtime probes
- [Galaxy-Repository.md](Galaxy-Repository.md) — ZB SQL reader, `LocalPlatform` scope filter, change detection
- **FOCAS** has a short getting-started doc because the Tier-C two-project deployment + backend-selection env var + alarm projection opt-in all need explaining up front:
- [FOCAS.md](FOCAS.md) — deployment, config, capability surface, alarm projection, troubleshooting
- **All other drivers** share a single per-driver specification in [docs/v2/driver-specs.md](../v2/driver-specs.md) — addressing, data-type maps, connection settings, and quirks live there. That file is the authoritative per-driver reference; this index points at it rather than duplicating.
## Test-fixture coverage maps
docs/drivers/TwinCAT-Test-Fixture.md
+122 -94
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@@ -2,60 +2,85 @@
Coverage map + gap inventory for the Beckhoff TwinCAT ADS driver.
**TL;DR:** Integration-test scaffolding lives at
`tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/` (task #221).
`TwinCATXarFixture` probes TCP 48898 on an operator-supplied VM; three
smoke tests (read / write / native notification) run end-to-end through
the real ADS stack when the VM is reachable, skip cleanly otherwise.
**Remaining operational work**: stand up a TwinCAT 3 XAR runtime in a
Hyper-V VM, author the `.tsproj` project documented at
`TwinCatProject/README.md`, rotate the 7-day trial license (or buy a
paid runtime). Unit tests via `FakeTwinCATClient` still carry the
exhaustive contract coverage.
**TL;DR:** Integration-test suite lives at
`tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/`. `TwinCATXarFixture`
probes TCP 48898 on an operator-supplied runtime; the suite runs **14
`[TwinCATFact]` methods + one 16-case `[TwinCATTheory]` = 30 test cases** end-to-end
through the real ADS stack when the runtime is reachable, skips cleanly
otherwise. The runtime can be a Hyper-V XAR VM or a TCBSD VM
(`TwinCatProject/README.md` covers both). Unit tests via `FakeTwinCATClient`
still carry the exhaustive contract coverage alongside.
TwinCAT is the only driver outside Galaxy that uses **native
notifications** (no polling) for `ISubscribable`, and the fake exposes a
fire-event harness so notification routing is contract-tested rigorously
at the unit layer.
TwinCAT is the only driver outside Galaxy that uses **native notifications**
(no polling) for `ISubscribable`. The integration suite verifies that path on
the wire; the fake exposes a fire-event harness so notification routing is
also contract-tested rigorously at the unit layer.
## What the fixture is
**Integration layer** (task #221, scaffolded):
`tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/` —
`TwinCATXarFixture` TCP-probes ADS port 48898 on the host specified by
`TWINCAT_TARGET_HOST` + requires `TWINCAT_TARGET_NETID` (AmsNetId of the
VM). No fixture-owned lifecycle — XAR can't run in Docker because it
bypasses the Windows kernel scheduler, so the VM stays
operator-managed. `TwinCatProject/README.md` documents the required
`.tsproj` project state; the file itself lands once the XAR VM is up +
the project is authored. Three smoke tests:
`Driver_reads_seeded_DINT_through_real_ADS`,
`Driver_write_then_read_round_trip_on_scratch_REAL`, and
`Driver_subscribe_receives_native_ADS_notifications_on_counter_changes`
— all skip cleanly via `[TwinCATFact]` when the runtime isn't
reachable.
**Integration layer**: `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/`
— `TwinCATXarFixture` TCP-probes ADS port 48898 on the host supplied by
`TWINCAT_TARGET_HOST` (defaults to `localhost`) + requires
`TWINCAT_TARGET_NETID` (AmsNetId of the runtime). Optionally takes
`TWINCAT_TARGET_PORT` (default `851` = TC3 PLC runtime 1). No fixture-owned
lifecycle — XAR / TCBSD can't run in Docker because they bypass the host
kernel scheduler, so the runtime stays operator-managed.
`TwinCatProject/README.md` documents the required project state; the tests
gate on `[TwinCATFact]` / `[TwinCATTheory]` and skip cleanly when
`TWINCAT_TARGET_NETID` is unset or the probe fails.
**Unit layer**: `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/` is
still the primary coverage. `FakeTwinCATClient` also fakes the
`AddDeviceNotification` flow so tests can trigger callbacks without a
running runtime.
**Unit layer**: `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/` remains the
primary contract coverage. `FakeTwinCATClient` fakes the
`AddDeviceNotification` flow so tests can trigger callbacks without a running
runtime.
## What it actually covers
### Integration (XAR VM, task #221 — code scaffolded, needs VM + project)
### Integration (live runtime)
- `TwinCAT3SmokeTests.Driver_reads_seeded_DINT_through_real_ADS` — real AMS
handshake + ADS read of `GVL_Fixture.nCounter` (seeded at 1234, MAIN
increments each cycle)
- `TwinCAT3SmokeTests.Driver_write_then_read_round_trip_on_scratch_REAL` —
real ADS write + read on `GVL_Fixture.rSetpoint`
- `TwinCAT3SmokeTests.Driver_subscribe_receives_native_ADS_notifications_on_counter_changes`
— real `AddDeviceNotification` against the cycle-incrementing counter;
observes `OnDataChange` firing within 3 s of subscribe
Every capability the driver implements is exercised on the wire:
All three gated on `TWINCAT_TARGET_HOST` + `TWINCAT_TARGET_NETID` env
vars; skip cleanly via `[TwinCATFact]` when the VM isn't reachable or
vars are unset.
- **Read** — `Driver_reads_seeded_DINT_through_real_ADS` (AMS handshake +
symbolic read of `GVL_Fixture.nCounter`)
- **Write + read round-trip** — `Driver_write_then_read_round_trip_on_scratch_REAL`
on `GVL_Fixture.rSetpoint`
- **Array element round-trip** — `Driver_round_trips_array_element_write_and_read`
on `GVL_Arrays.aReal1D[5]` (exercises `TwinCATSymbolPath` subscript
rendering)
- **Subscribe (native ADS notifications)** —
`Driver_subscribe_receives_native_ADS_notifications_on_counter_changes`;
observes `OnDataChange` firing within 10 s of subscribe
- **Symbol browse (direct client path)** —
`Driver_browses_committed_symbol_hierarchy_via_real_ADS` via
`ITwinCATClient.BrowseSymbolsAsync`
- **Symbol browse (through DiscoverAsync + `IAddressSpaceBuilder` pipeline)** —
`DiscoverAsync_renders_declared_tags_and_controller_browse_hits_address_space_builder`
verifies the real `TwinCAT/ → device/ → Discovered/` folder tree
- **Auto-reconnect** — `Driver_auto_reconnects_after_underlying_client_is_disposed`
disposes the `AdsClient` mid-flight; next read must re-establish
- **Primitive type coverage** — `Driver_reads_every_primitive_type_with_correct_mapping`
runs as a `[Theory]` against the 16 primitives in `GVL_Primitives`
(Bool, SInt, USInt, Int, UInt, DInt, UDInt, LInt, ULInt, Real, LReal,
String, Time, TimeOfDay, Date, DateTime) — asserts status + CLR type +
seed value where ergonomic
- **Bit-indexed BOOL** — `Driver_reads_bit_indexed_BOOL_from_word` against
`GVL_Primitives.vWord.3` + `.4` (bits of `0x​BEEF`)
- **Nested UDT navigation** — `Driver_reads_deeply_nested_UDT_path` reads
`GVL_Plant.Line1.Stations[1].Axes[1].Motor.Temperature` (LREAL) + `.Running` (BOOL)
- **Multi-device routing + isolation** —
`Driver_routes_reads_per_device_and_isolates_unreachable_peers` pairs the
real runtime with a bogus AmsNetId; healthy device reads still succeed
- **Probe loop + `IHostConnectivityProbe`** —
`Probe_loop_raises_host_status_transition_to_Running_on_reachable_target`
asserts `OnHostStatusChanged → Running` and snapshot parity
- **Negative error mappings** —
`Driver_reports_errors_for_unknown_tag_and_nonexistent_symbol_and_readonly_write`
covers `BadNodeIdUnknown`, ghost-symbol communication errors, and the
`BadNotWritable` short-circuit
All tests gate on `TWINCAT_TARGET_NETID` (required) via `[TwinCATFact]` /
`[TwinCATTheory]`; `TWINCAT_TARGET_HOST` (default `localhost`) and
`TWINCAT_TARGET_PORT` (default `851`) are optional overrides.
### Unit
@@ -65,54 +90,69 @@ vars are unset.
- `TwinCATReadWriteTests` — read + write through the fake, status mapping
- `TwinCATSymbolPathTests` — symbol-path routing for nested struct members
- `TwinCATSymbolBrowserTests` — `ITagDiscovery.DiscoverAsync` via
`ReadSymbolsAsync` (#188) + system-symbol filtering
- `TwinCATNativeNotificationTests` — `AddDeviceNotification` (#189)
registration, callback-delivery-to-`OnDataChange` wiring, unregister on
unsubscribe
`BrowseSymbolsAsync` + system-symbol filtering
- `TwinCATNativeNotificationTests` — `AddDeviceNotification` registration,
callback-delivery-to-`OnDataChange` wiring, unregister on unsubscribe
- `TwinCATDriverTests` — `IDriver` lifecycle
Capability surfaces whose contract is verified: `IDriver`, `IReadable`,
`IWritable`, `ITagDiscovery`, `ISubscribable`, `IHostConnectivityProbe`,
`IPerCallHostResolver`.
Capability surfaces whose contract is verified at the unit layer: `IDriver`,
`IReadable`, `IWritable`, `ITagDiscovery`, `ISubscribable`,
`IHostConnectivityProbe`, `IPerCallHostResolver`. The integration suite now
verifies `ITagDiscovery` + `IHostConnectivityProbe` on the wire as well.
## Bugs caught by live runs
The integration suite surfaced three driver defects that `FakeTwinCATClient`
couldn't, since each lived below the abstraction boundary:
1. **Notification cycle time unit** — `NotificationSettings(cycleTime, maxDelay)`
takes **milliseconds** per Beckhoff InfoSys
(`tcadsnetref/7313319051`), but the driver was multiplying by `10_000`
under a "100 ns units" assumption. A requested 250 ms cycle was being set
to ~41 minutes — subscribe never fired. Fix in `AdsTwinCATClient.AddNotificationAsync`.
2. **`STRING(N)` / `WSTRING(N)` type mapper** — `MapSymbolTypeName` only
matched bare `"STRING"` / `"WSTRING"`, so sized strings (the common case)
fell off `BrowseSymbolsAsync` entirely. Fix: strip the `(…)` bound before
the switch.
3. **Bit-indexed BOOL path** — driver was sending `"GVL.vWord.3"` to ADS as
a BOOL read. TwinCAT's symbol table doesn't expose bit-access paths; the
read returned `DeviceSymbolNotFound`. Fix: strip the `.N` suffix, read
the parent word as `uint`, extract the bit locally via `ExtractBit`.
All three paths are now pinned by live-wire tests.
## What it does NOT cover
### 1. AMS / ADS wire traffic
### 1. AMS / ADS wire framing
No real AMS router frame is exchanged. Beckhoff's `TwinCAT.Ads` NuGet (their
own .NET SDK, not libplctag-style OSS) has no in-process fake; tests stub
the `ITwinCATClient` abstraction above it.
No raw AMS packet is inspected. Beckhoff's `TwinCAT.Ads` NuGet (their own
.NET SDK, not libplctag-style OSS) has no in-process fake at the frame
level; tests run against a real router.
### 2. Multi-route AMS
ADS supports chained routes (`<localNetId> → <routerNetId> → <targetNetId>`)
for PLCs behind an EC master / IPC gateway. Parse coverage exists; wire-path
coverage doesn't.
coverage is single-hop only.
### 3. Notification reliability under jitter
### 3. Notification coalescing under jitter
`AddDeviceNotification` delivers at the runtime's cycle boundary; under high
CPU load or network jitter real notifications can coalesce. The fake fires
one callback per test invocation — real callback-coalescing behavior is
untested.
`AddDeviceNotification` delivers at the runtime's cycle boundary; under
sustained CPU load or network jitter real notifications can coalesce. The
live test only asserts at-least-one delivery within a generous window —
coalescing behavior under stress isn't verified.
### 4. TC2 vs TC3 variant handling
TwinCAT 2 (ADS v1) and TwinCAT 3 (ADS v2) have subtly different
`GetSymbolInfoByName` semantics + symbol-table layouts. Driver targets TC3;
TC2 compatibility is not exercised.
`GetSymbolInfoByName` semantics + symbol-table layouts. Driver + tests target
TC3; TC2 compatibility is not exercised.
### 5. Cycle-time alignment for `ISubscribable`
### 5. Alarms / history
Native ADS notifications fire on the PLC cycle boundary. The fake test
harness assumes notifications fire on a timer the test controls;
cycle-aligned firing under real PLC control is not verified.
### 6. Alarms / history
Driver doesn't implement `IAlarmSource` or `IHistoryProvider` — not in
scope for this driver family. TwinCAT 3's TcEventLogger could theoretically
back an `IAlarmSource`, but shipping that is a separate feature.
Driver doesn't implement `IAlarmSource` or `IHistoryProvider` — not in scope
for this driver family. TwinCAT 3's TcEventLogger could theoretically back
an `IAlarmSource`, but shipping that is a separate feature.
## When to trust TwinCAT tests, when to reach for a rig
@@ -122,37 +162,25 @@ back an `IAlarmSource`, but shipping that is a separate feature.
| "Does notification → `OnDataChange` wire correctly?" | yes (contract) | yes |
| "Does symbol browsing filter TwinCAT internals?" | yes | yes |
| "Does a real ADS read return correct bytes?" | no | yes (required) |
| "Do notifications coalesce under load?" | no | yes (required) |
| "Does auto-reconnect work on router restart?" | no (contract only) | yes (required) |
| "Do notifications coalesce under sustained load?" | no | yes (required) |
| "Does a TC2 PLC work the same as TC3?" | no | yes (required) |
## Follow-up candidates
1. **XAR VM live-population** — scaffolding is in place (this PR); the
remaining work is operational: stand up the Hyper-V VM, install XAR,
author the `.tsproj` per `TwinCatProject/README.md`, configure the
bilateral ADS route, set `TWINCAT_TARGET_HOST` + `TWINCAT_TARGET_NETID`
on the dev box. Then the three smoke tests transition skip → pass.
Tracked as #221.
2. **License-rotation automation** — XAR's 7-day trial expires on
schedule. Either automate `TcActivate.exe /reactivate` via a
scheduled task on the VM (not officially supported; reportedly works
for some TC3 builds), or buy a paid runtime license (~$1k one-time
per runtime per CPU) to kill the rotation. The doc at
`TwinCatProject/README.md` §License rotation walks through both.
3. **Lab rig** — cheapest IPC (CX7000 / CX9020) on a dedicated network;
the only route that covers TC2 + real EtherCAT I/O timing + cycle
jitter under CPU load.
Deferred to v3 — see [`docs/v3/twincat-backlog.md`](../v3/twincat-backlog.md).
Covers TC2 coverage, notification-coalescing-under-load, multi-hop AMS,
license-rotation automation, and a dedicated lab IPC.
## Key fixture / config files
- `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/TwinCATXarFixture.cs`
— TCP probe + skip-attributes + env-var parsing
- `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/TwinCAT3SmokeTests.cs`
— three wire-level smoke tests
— wire-level test suite (14 `[TwinCATFact]` + 16-case `[TwinCATTheory]`)
- `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.IntegrationTests/TwinCatProject/README.md`
— project spec + VM setup + license-rotation notes
- `tests/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/FakeTwinCATClient.cs` —
in-process fake with the notification-fire harness used by
`TwinCATNativeNotificationTests`
- `src/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs` — ctor takes
`ITwinCATClientFactory`
in-process fake with the notification-fire harness
- `src/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT/TwinCATDriver.cs` — ctor is
`(TwinCATDriverOptions, string driverInstanceId, ITwinCATClientFactory? = null)`
docs/plans/alarms-over-gateway.md
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# Alarm Tracking — v1 archive
> **Historical record.** This document describes the v1 / pre-PR-7.2
> Galaxy alarm path that ran inside `Galaxy.Host`'s STA pump as
> `GalaxyAlarmTracker`. PR 7.2 retired the in-process Galaxy stack; the
> alarms-over-gateway epic (B.2 / B.3 / E.7) restored Galaxy's
> `IAlarmSource` capability against the new gateway-mediated transport.
> See [docs/AlarmTracking.md](../AlarmTracking.md) for the v2 final
> architecture — that is the document to read for current behaviour.
Alarm surfacing is an optional driver capability exposed via `IAlarmSource` (`src/ZB.MOM.WW.OtOpcUa.Core.Abstractions/IAlarmSource.cs`). Drivers whose backends have an alarm concept implement it — today: Galaxy (MXAccess alarms), FOCAS (CNC alarms), OPC UA Client (A&C events from the upstream server). Modbus / S7 / AB CIP / AB Legacy / TwinCAT do not implement the interface and the feature is simply absent from their subtrees.
## IAlarmSource surface
```csharp
Task<IAlarmSubscriptionHandle> SubscribeAlarmsAsync(
IReadOnlyList<string> sourceNodeIds, CancellationToken cancellationToken);
Task UnsubscribeAlarmsAsync(IAlarmSubscriptionHandle handle, CancellationToken cancellationToken);
Task AcknowledgeAsync(IReadOnlyList<AlarmAcknowledgeRequest> acknowledgements,
CancellationToken cancellationToken);
event EventHandler<AlarmEventArgs>? OnAlarmEvent;
```
The driver fires `OnAlarmEvent` for every transition (`Active`, `Acknowledged`, `Inactive`) with an `AlarmEventArgs` carrying the source node id, condition id, alarm type, message, severity (`AlarmSeverity` enum), and source timestamp.
## AlarmSurfaceInvoker
`AlarmSurfaceInvoker` (`src/ZB.MOM.WW.OtOpcUa.Core/Resilience/AlarmSurfaceInvoker.cs`) wraps the three mutating surfaces through `CapabilityInvoker`:
- `SubscribeAlarmsAsync` / `UnsubscribeAlarmsAsync` run through the `DriverCapability.AlarmSubscribe` pipeline — retries apply under the tier configuration.
- `AcknowledgeAsync` runs through `DriverCapability.AlarmAcknowledge` which does NOT retry per decision #143. A timed-out ack may have already registered at the plant floor; replay would silently double-acknowledge.
Multi-host fan-out: when the driver implements `IPerCallHostResolver`, each source node id is resolved individually and batches are grouped by host so a dead PLC inside a multi-device driver doesn't poison sibling breakers. Single-host drivers fall back to `IDriver.DriverInstanceId` as the pipeline-key host.
## Condition-node creation via CapturingBuilder
Alarm-condition nodes are materialized at address-space build time. During `GenericDriverNodeManager.BuildAddressSpaceAsync` the builder is wrapped in a `CapturingBuilder` that observes every `Variable()` call. When a driver calls `IVariableHandle.MarkAsAlarmCondition(AlarmConditionInfo)` on a returned handle, the server-side `DriverNodeManager.VariableHandle` creates a sibling `AlarmConditionState` node and returns an `IAlarmConditionSink`. The wrapper stores the sink in `_alarmSinks` keyed by the variable's full reference, then `GenericDriverNodeManager` registers a forwarder on `IAlarmSource.OnAlarmEvent` that routes each push to the matching sink by `SourceNodeId`. Unknown source ids are dropped silently — they may belong to another driver.
The `AlarmConditionState` layout matches OPC UA Part 9:
- `SourceNode` → the originating variable
- `SourceName` / `ConditionName` → from `AlarmConditionInfo.SourceName`
- Initial state: enabled, inactive, acknowledged, severity per `InitialSeverity`, retain false
- `HasCondition` references wire the source variable ↔ the condition node bidirectionally
Drivers flag alarm-bearing variables at discovery time via `DriverAttributeInfo.IsAlarm = true`. The Galaxy driver, for example, sets this on attributes that have an `AlarmExtension` primitive in the Galaxy repository DB; FOCAS sets it on the CNC alarm register.
## State transitions
`ConditionSink.OnTransition` runs under the node manager's `Lock` and maps the `AlarmEventArgs.AlarmType` string to Part 9 state:
| AlarmType | Action |
|---|---|
| `Active` | `SetActiveState(true)`, `SetAcknowledgedState(false)`, `Retain = true` |
| `Acknowledged` | `SetAcknowledgedState(true)` |
| `Inactive` | `SetActiveState(false)`; `Retain = false` once both inactive and acknowledged |
Severity is remapped: `AlarmSeverity.Low/Medium/High/Critical` → OPC UA numeric 250 / 500 / 700 / 900. `Message.Value` is set from `AlarmEventArgs.Message` on every transition. `ClearChangeMasks(true)` and `ReportEvent(condition)` fire the OPC UA event notification for clients subscribed to any ancestor notifier.
## Acknowledge dispatch
Alarm acknowledgement initiated by an OPC UA client flows:
1. The SDK invokes the `AlarmConditionState.OnAcknowledge` method delegate.
2. The handler checks the session's roles for `AlarmAck` — drivers never see a request the session wasn't entitled to make.
3. `AlarmSurfaceInvoker.AcknowledgeAsync` is called with the source / condition / comment tuple. The invoker groups by host and runs each batch through the no-retry `AlarmAcknowledge` pipeline.
Drivers return normally for success or throw to signal the ack failed at the backend.
## EventNotifier propagation
Drivers that want hierarchical alarm subscriptions propagate `EventNotifier.SubscribeToEvents` up the containment chain during discovery — the Galaxy driver flips the flag on every ancestor of an alarm-bearing object up to the driver root, mirroring v1 behavior. Clients subscribed at the driver root, a mid-level folder, or the `Objects/` root see alarm events from every descendant with an `AlarmConditionState` sibling. The driver-root `FolderState` is created in `DriverNodeManager.CreateAddressSpace` with `EventNotifier = SubscribeToEvents | HistoryRead` so alarm event subscriptions and alarm history both have a single natural target.
## ConditionRefresh
The OPC UA `ConditionRefresh` service queues the current state of every retained condition back to the requesting monitored items. `DriverNodeManager` iterates the node manager's `AlarmConditionState` collection and queues each condition whose `Retain.Value == true` — matching the Part 9 requirement.
## Alarm historian sink
Distinct from the live `IAlarmSource` stream and the Part 9 `AlarmConditionState` materialization above, qualifying alarm transitions are **also** persisted to a durable event log for downstream AVEVA Historian ingestion. This is a separate subsystem from the `IHistoryProvider` capability used by `HistoryReadEvents` (see [HistoricalDataAccess.md](HistoricalDataAccess.md#alarm-event-history-vs-ihistoryprovider)): the sink is a *producer* path (server → Historian) that runs independently of any client HistoryRead call.
### `IAlarmHistorianSink`
`src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/IAlarmHistorianSink.cs` defines the intake contract:
```csharp
Task EnqueueAsync(AlarmHistorianEvent evt, CancellationToken cancellationToken);
HistorianSinkStatus GetStatus();
```
`EnqueueAsync` is fire-and-forget from the producer's perspective — it must never block the emitting thread. The event payload (`AlarmHistorianEvent` — same file) is source-agnostic: `AlarmId`, `EquipmentPath`, `AlarmName`, `AlarmTypeName` (Part 9 subtype name), `Severity`, `EventKind` (free-form transition string — `Activated` / `Cleared` / `Acknowledged` / `Confirmed` / `Shelved` / …), `Message`, `User`, `Comment`, `TimestampUtc`.
The sink scope is defined to span every alarm source (plan decision #15: scripted, Galaxy-native, AB CIP ALMD, any future `IAlarmSource`), gated per-alarm by a `HistorizeToAveva` toggle on the producer. Today only `Phase7EngineComposer.RouteToHistorianAsync` (`src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7EngineComposer.cs`) is wired — it subscribes to `ScriptedAlarmEngine.OnEvent` and marshals each emission into `AlarmHistorianEvent`. Galaxy-native alarms continue to reach AVEVA Historian via the driver's direct `aahClientManaged` path and do not flow through the sink; the AB CIP ALMD path remains unwired pending a producer-side integration.
### `SqliteStoreAndForwardSink`
Default production implementation (`src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/SqliteStoreAndForwardSink.cs`). A local SQLite queue absorbs every `EnqueueAsync` synchronously; a background `Timer` drains batches asynchronously to an `IAlarmHistorianWriter` so operator actions are never blocked on historian reachability.
Queue schema (single table `Queue`): `RowId PK autoincrement`, `AlarmId`, `EnqueuedUtc`, `PayloadJson` (serialized `AlarmHistorianEvent`), `AttemptCount`, `LastAttemptUtc`, `LastError`, `DeadLettered` (bool), plus `IX_Queue_Drain (DeadLettered, RowId)`. Default capacity `1_000_000` non-dead-lettered rows; oldest rows evict with a WARN log past the cap.
Drain cadence: `StartDrainLoop(tickInterval)` arms a periodic timer. `DrainOnceAsync` reads up to `batchSize` rows (default 100) in `RowId` order and forwards them through `IAlarmHistorianWriter.WriteBatchAsync`, which returns one `HistorianWriteOutcome` per row:
| Outcome | Action |
|---|---|
| `Ack` | Row deleted. |
| `PermanentFail` | Row flipped to `DeadLettered = 1` with reason. Peers in the batch retry independently. |
| `RetryPlease` | `AttemptCount` bumped; row stays queued. Drain worker enters `BackingOff`. |
Writer-side exceptions treat the whole batch as `RetryPlease`.
Backoff ladder on `RetryPlease` (hard-coded): 1s → 2s → 5s → 15s → 60s cap. Reset to 0 on any batch with no retries. `CurrentBackoff` exposes the current step for instrumentation; the drain timer itself fires on `tickInterval`, so the ladder governs write cadence rather than timer period.
Dead-letter retention defaults to 30 days (plan decision #21). `PurgeAgedDeadLetters` runs each drain pass and deletes rows whose `LastAttemptUtc` is past the cutoff. `RetryDeadLettered()` is an operator action that clears `DeadLettered` + resets `AttemptCount` on every dead-lettered row so they rejoin the main queue.
### Composition and writer resolution
`Phase7Composer.ResolveHistorianSink` (`src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7Composer.cs`) scans the registered drivers for one that implements `IAlarmHistorianWriter`. Today that is `GalaxyProxyDriver` via `GalaxyHistorianWriter` (`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Proxy/Ipc/GalaxyHistorianWriter.cs`), which forwards batches over the Galaxy.Host pipe to the `aahClientManaged` alarm schema. When a writer is found, a `SqliteStoreAndForwardSink` is instantiated against `%ProgramData%/OtOpcUa/alarm-historian-queue.db` with a 2 s drain tick and the writer attached. When no driver provides a writer the fallback is the DI-registered `NullAlarmHistorianSink` (`src/ZB.MOM.WW.OtOpcUa.Server/Program.cs`), which silently discards and reports `HistorianDrainState.Disabled`.
### Status and observability
`GetStatus()` returns `HistorianSinkStatus(QueueDepth, DeadLetterDepth, LastDrainUtc, LastSuccessUtc, LastError, DrainState)` — two `COUNT(*)` scalars plus last-drain telemetry. `DrainState` is one of `Disabled` / `Idle` / `Draining` / `BackingOff`.
The Admin UI `/alarms/historian` page surfaces this through `HistorianDiagnosticsService` (`src/ZB.MOM.WW.OtOpcUa.Admin/Services/HistorianDiagnosticsService.cs`), which also exposes `TryRetryDeadLettered` — it calls through to `SqliteStoreAndForwardSink.RetryDeadLettered` when the live sink is the SQLite implementation and returns 0 otherwise.
## Key source files
- `src/ZB.MOM.WW.OtOpcUa.Core.Abstractions/IAlarmSource.cs` — capability contract + `AlarmEventArgs`
- `src/ZB.MOM.WW.OtOpcUa.Core/Resilience/AlarmSurfaceInvoker.cs` — per-host fan-out + no-retry ack
- `src/ZB.MOM.WW.OtOpcUa.Core/OpcUa/GenericDriverNodeManager.cs` — `CapturingBuilder` + alarm forwarder
- `src/ZB.MOM.WW.OtOpcUa.Server/OpcUa/DriverNodeManager.cs` — `VariableHandle.MarkAsAlarmCondition` + `ConditionSink`
- `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/Backend/Alarms/GalaxyAlarmTracker.cs` — Galaxy-specific alarm-event production
- `src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/IAlarmHistorianSink.cs` — historian sink intake contract + `AlarmHistorianEvent` + `HistorianSinkStatus` + `IAlarmHistorianWriter`
- `src/ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian/SqliteStoreAndForwardSink.cs` — durable queue + drain worker + backoff ladder + dead-letter retention
- `src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7EngineComposer.cs` — `RouteToHistorianAsync` wires scripted-alarm emissions into the sink
- `src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7Composer.cs` — `ResolveHistorianSink` selects `SqliteStoreAndForwardSink` vs `NullAlarmHistorianSink`
- `src/ZB.MOM.WW.OtOpcUa.Admin/Services/HistorianDiagnosticsService.cs` — Admin UI `/alarms/historian` status + retry-dead-lettered operator action
docs/Configuration.md → docs/v1/Configuration.md
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docs/v1/README.md
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# v1 documentation archive
This folder contains documentation that described the original v1
in-process MXAccess architecture (`Galaxy.Host` + `Galaxy.Proxy` +
`Galaxy.Shared` three-project split, .NET 4.8 x86 + COM apartment, the
`OtOpcUaGalaxyHost` Windows service). That architecture was retired in
PR 7.2 (merged 2026-04-30 at commit `ae7106d`). These docs are kept as
the historical record of how the system worked before the v2-mxgw
migration; treat their content as accurate at the time of writing, NOT
as current state.
For current architecture see:
- `CLAUDE.md` — agent-facing v2 overview
- `docs/drivers/Galaxy.md` — current Galaxy driver doc
- `docs/v2/Galaxy.ParityRig.md` — current testing setup
- `docs/v2/Galaxy.Performance.md` — observability + perf
| File | What it covered |
|---|---|
| `AlarmTracking.md` | v1 alarm-tracking flow through the in-process MXAccess client |
| `Configuration.md` | v1 server configuration (`OTOPCUA_GALAXY_*` env vars now live in mxaccessgw config) |
| `DataTypeMapping.md` | Galaxy `mx_data_type` → OPC UA type mapping (still accurate as a reference; the live mapping logic is in `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DataTypeMap.cs`) |
| `HistoricalDataAccess.md` | v1 IHistoryProvider on the Host side; current path is the server-level HistoryRouter + Wonderware sidecar |
| `Subscriptions.md` | v1 MXAccess subscription mechanics; current path uses gateway StreamEvents |
| `drivers/Galaxy-Repository.md` | v1 Host-side ZB SQL repository client; the gateway owns this path now |
| `drivers/Galaxy-Test-Fixture.md` | v1 test-fixture setup (parity tests + Galaxy.Host EXE spawn) |
| `reqs/GalaxyRepositoryReqs.md`, `reqs/MxAccessClientReqs.md` | Original Phase 0 requirements; satisfied in mxaccessgw repo today |
| `reqs/ServiceHostReqs.md` | Service-hosting requirements including `OtOpcUaGalaxyHost` (GHX-* section); only `OtOpcUa` server hosting remains in scope post-7.2 |
docs/Subscriptions.md → docs/v1/Subscriptions.md
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docs/drivers/Galaxy-Test-Fixture.md → docs/v1/drivers/Galaxy-Test-Fixture.md
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@@ -35,13 +35,14 @@ Multi-project test topology:
## How tests skip
- **E2E parity**: `ParityFixture.SkipIfUnavailable()` runs at class init and
checks Windows-only, non-admin user, ZB SQL reachable on
`localhost:1433`, Host EXE built in the expected `bin/` folder. Any miss
→ tests skip.
checks Windows-only, ZB SQL reachable on `localhost:1433`, Host EXE built
in the expected `bin/` folder. Any miss → tests skip.
- **Live-smoke** (`GalaxyRepositoryLiveSmokeTests`): `Assert.Skip` when ZB
unreachable. A `per project_galaxy_host_installed` memory on this repo's
dev box notes the MXAccess runtime is installed + pipe ACL denies Admins,
so live tests must run from a non-elevated shell.
dev box notes the MXAccess runtime is installed. The pipe ACL allows the
configured SID outright; elevation of the caller doesn't matter because
the per-connection SID check in `PipeServer.VerifyCaller` only compares
user SIDs (not group membership or integrity level).
- **Unit** tests (Shared, Proxy contract, most Host.Tests) have no skip —
they run anywhere.
docs/reqs/GalaxyRepositoryReqs.md → docs/v1/reqs/GalaxyRepositoryReqs.md
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> **✅ Completed 2026-04-30 — historical record of the parity-rig validation gate for PR 7.2.**
>
> The matrix below was the go/no-go gate for retiring the legacy
> Galaxy.Host backend (PR 7.2). Final run on the dev rig 2026-04-30
> returned 14 passed / 1 skipped / 0 failed; PR 7.2 (commit `fe91d42`)
> deleted the legacy projects + service the next day. The "Running
> the matrix" section is preserved for historical reproducibility but
> the test projects it references (`Driver.Galaxy.ParityTests`) were
> deleted alongside the legacy backend; this matrix is no longer
> runnable. Current Galaxy testing flows through the gateway's own
> test suite (sibling mxaccessgw repo).
# Galaxy backend parity matrix
This document tracks the scenario × result matrix that the
`Driver.Galaxy.ParityTests` suite drives against both Galaxy backends —
the legacy out-of-process **Galaxy.Host** (.NET 4.8 x86 + MXAccess COM,
fronted by `GalaxyProxyDriver`) and the new in-process **mxgateway**
backend (`GalaxyDriver`, .NET 10 + gRPC against `mxaccessgw`).
Maintained alongside Phase 5 (PR 5.W). The Phase 7 default flip
(PR 7.1) consumes this matrix as its go/no-go gate — every row must be
either green or carry an explicit *accepted-delta* justification.
## Reading the matrix
- **Status: green** — the scenario asserts strict parity and passes
(or skips cleanly when the rig isn't up).
- **Status: yellow** — soft pin only (count or shape parity, not value
parity) — acceptable when the underlying COM/gRPC stacks have known
divergences in raw payloads but the surface presented to the
DriverNodeManager is equivalent.
- **Status: red** — divergence detected. Row carries a fix or a
follow-up task ID.
## Scenarios
Last verified end-to-end on the dev parity rig: **2026-04-30**
(legacy `OtOpcUaGalaxyHost` mxaccess backend; mxaccessgw v1.x at
`http://localhost:5120`; sandbox `OtOpcUaParityTest_001` deployed in
the `ZB` galaxy; 13 passed / 1 skipped / 0 failed in 19 minutes).
| PR | Test class | Scenario | Status | Notes |
|----|-----------|----------|--------|-------|
| 5.2 | `BrowseAndReadParityTests` | Same variable set | green | symmetric set diff on full-reference set, after `[]` array-suffix workaround in `GalaxyDiscoverer` |
| 5.2 | `BrowseAndReadParityTests` | Same DataType / SecurityClass / IsHistorized | green | per-attribute meta triple parity |
| 5.2 | `BrowseAndReadParityTests` | Same StatusCode-class on a sampled read | yellow | pins status class (Bad/Uncertain/Good); CLR type intentionally not asserted — see "Accepted deltas" #6 |
| 5.3 | `SubscribeAndEventRateParityTests` | Subscribe returns a handle on each backend | green | symmetric Unsubscribe cleanup |
| 5.3 | `SubscribeAndEventRateParityTests` | Event rate within ±50% over 3s | yellow | both backends fed by the same upstream MXAccess subscriptions; tolerance absorbs scheduler jitter |
| 5.4 | `WriteByClassificationParityTests` | FreeAccess / Operate write status-class parity | yellow | pins status class only; legacy flat-maps every failure to BadInternalError, mxgw distinguishes (BadCommunicationError, BadDeviceFailure, etc.) — see "Accepted deltas" #7 |
| 5.4 | `WriteByClassificationParityTests` | Configure / Tune routes via secured-write | yellow | same status-class pin |
| 5.5 | `AlarmTransitionParityTests` | Same alarm-condition source-node-id set | green | one-way invariant on sub-attribute refs (legacy populated → mxgw matches; legacy null → mxgw free to populate per AlarmRefBuilder) |
| 5.5 | `AlarmTransitionParityTests` | IsAlarm-marked variable count parity | green | soft pin — count must match, doesn't have to be non-zero |
| 5.6 | `HistoryReadParityTests` | Same historized attribute set | green | what HistoryRouter consumes when routing to the Wonderware sidecar |
| 5.6 | `HistoryReadParityTests` | New mxgw GalaxyDriver does not implement `IHistoryProvider` | green | architectural pin from Phase 1 (PR 1.3) on the *new* path; legacy `GalaxyProxyDriver` keeps the interface for back-compat until PR 7.2 — see "Accepted deltas" #8 |
| 5.7 | `ReconnectParityTests` | Reinitialize → both Healthy + reads succeed | green | recovery latency is *not* pinned (legacy: pipe + COM client; mxgw: re-Register gw session) |
| 5.7 | `ReconnectParityTests` | Health diverges only when one side recovers | yellow | soft pin until a toxiproxy-style fault injector lands |
| 5.8 | `ScanStateProbeParityTests` | Same per-platform host set | n/a — deferred | dev rig is licensed for one `$WinPlatform` only; multi-platform parity deferred to a customer rig (PR 4.7's unit tests pin the state-decoder + member-tracking logic) |
| 5.8 | `ScanStateProbeParityTests` | Same `HostState` per overlapping platform | n/a — deferred | same single-platform constraint |
## Accepted deltas
These are intentional differences between the two backends — the parity
suite skips or tolerates them by design.
1. **Transport-entry host name.** The legacy backend's
`IHostConnectivityProbe` surface includes a host entry named after
the Galaxy.Host process identity; the mxgw backend uses the
configured `MxAccess.ClientName`. The names differ, but both are
correct for their respective sessions — the parity test compares
only the platform-host subset.
2. **Reconnect latency cadence.** Legacy reconnect roundtrips an OS
named pipe + an MxAccess COM client + a Galaxy.Host process restart
if the host died. The mxgw reconnect re-Registers the gateway session
over an existing gRPC channel. Sub-second vs multi-second recoveries
are both correct for their own paths; only the eventual `Healthy`
convergence is pinned.
3. **Read-value drift.** A read sampled twice on a live Galaxy can
return different values legitimately. We pin `StatusCode`-class
parity (Bad/Uncertain/Good); value equality is not pinned.
4. **Event-rate variance.** Both backends consume the same upstream
MXAccess publish events but route them through different deserializers
(LMXProxyServer COM events vs gRPC `MxEvent` protos). Scheduler
jitter on either side can shift counts within a 3s window; we pin a
±50% ratio, not strict equality.
5. **`IHistoryProvider` on the new path only.** Phase 1 (PR 1.3) lifted
history off the per-driver path onto the server-owned
`HistoryRouter` for the *new* in-process `GalaxyDriver`. The legacy
`GalaxyProxyDriver` still surfaces `IHistoryProvider` for back-compat
with the legacy server bootstrap path — it's an accepted delta
retired in PR 7.2 alongside the rest of the legacy projects. The
pin we want to enforce is "the new path doesn't regress to per-driver
history."
6. **Read value-CLR-type.** Legacy returns the raw VARIANT (e.g.
`Byte[]`) for an attribute that hasn't received its first value
cycle from MxAccess yet, while mxgw returns the typed value
(`Single`, `Int32`, etc.). Once a real value is written or scanned,
both converge. Pinning CLR-type equality across the uninitialized
window adds noise without a real parity invariant — the
`StatusCode`-class assertion already covers the
"did the read succeed" question.
7. **Write-failure StatusCode mapping.** Legacy
`MxAccessGalaxyBackend.WriteValuesAsync` flat-maps every failure to
`BadInternalError` (`0x80020000`); mxgw
`GatewayGalaxyDataWriter.TranslateReply` uses
`MxStatusProxy.RawDetectedBy` to distinguish gw-layer faults
(`BadCommunicationError`, `0x80050000`) from MxAccess HRESULT
faults (`BadDeviceFailure`, `BadNotConnected`, etc.). Both yield
Bad-status — the parity invariant is the *status class*, not the
exact code. Tighter mapping parity isn't worth investing in: the
legacy mapping retires alongside `GalaxyProxyDriver` in PR 7.2.
8. **Single-platform scope on the dev rig.** Two
`ScanStateProbeParityTests` scenarios are deferred to a customer
rig with multiple deployed `$WinPlatform` instances; this dev box
is licensed for one. PR 4.7's unit tests (`PerPlatformProbeWatcherTests`)
pin the state-decoder + member-tracking logic at the seam level,
so the runtime parity check becomes a customer-rig acceptance gate
before that customer goes live, not a precondition for retiring
the legacy projects on this dev box.
9. **Workaround for the gw `[]` array-suffix bug.**
`mxaccessgw/src/MxGateway.Server/Galaxy/GalaxyRepository.cs:173-175`
appends `[]` to the `full_tag_reference` of array-typed attributes,
which `MxAccess COM IInstance.AddItem` doesn't accept. The lmxopcua
discoverer (`GalaxyDiscoverer.StripArraySuffix`) defensively strips
the suffix. Tracked in `mxaccessgw/requirements-array-suffix-fix.md`;
the workaround is removed when that gw fix lands.
## Outstanding deltas
None as of 2026-04-30. Phase 7 (PR 7.1) flipped the default to
`mxgw`; PR 7.2 (legacy project deletion) is unblocked — the matrix
gate is satisfied and no further soak/pilot precondition applies.
## Running the matrix
```bash
# Both backends must be reachable for any row to run; rows skip
# cleanly when their backend is unavailable.
dotnet test tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests/
```
Environment overrides for the mxgw backend:
| Variable | Default | Purpose |
|----------|---------|---------|
| `OTOPCUA_PARITY_GW_ENDPOINT` | `http://localhost:5120` | mxaccessgw gRPC endpoint |
| `OTOPCUA_PARITY_GW_API_KEY` | `parity-suite-key` | API key handed to `MxGatewayClient` |
| `OTOPCUA_PARITY_CLIENT_NAME` | `OtOpcUa-Parity` | `MxAccess.ClientName` for the session |
The legacy backend reads ZB SQL on `localhost:1433` and spawns
`OtOpcUa.Driver.Galaxy.Host.exe` from
`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/bin/Debug/net48/` — both
must exist for the legacy half to resolve.
docs/v2/Galaxy.ParityRig.md
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# Galaxy parity rig — runbook
> ✅ **Completed 2026-04-30 — historical record.** This runbook is the
> recipe that produced the green parity matrix that gated PR 7.2
> (retire legacy Galaxy projects, merged at commit `ae7106d`). The
> matrix it produced is captured in
> [`Galaxy.ParityMatrix.md`](Galaxy.ParityMatrix.md), also marked
> historical. The test project this doc drove
> (`Driver.Galaxy.ParityTests`) was deleted in PR 7.2, along with
> `Driver.Galaxy.{Host,Proxy,Shared}` and the `OtOpcUaGalaxyHost`
> Windows service. **You cannot re-run this rig today.** Current
> Galaxy testing flows through the gateway's own test suite in the
> sibling `mxaccessgw` repo.
>
> The text below is preserved as-written so the migration trail (what
> was tested, against what shape, with what env vars) stays auditable.
Brings up both Galaxy backends side-by-side against a single live Galaxy
so the parity matrix in `docs/v2/Galaxy.ParityMatrix.md` and the soak
scenario in `tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests/SoakScenarioTests.cs`
can run for real. Closing the parity matrix was the gate for PR 7.2
(retire legacy Galaxy projects).
## Conceptual layout
```
Galaxy ZB SQL ──┬── OtOpcUaGalaxyHost (NSSM service, net48 x86) [DELETED in PR 7.2]
│ └── MxAccess COM, ClientName "OtOpcUa-Galaxy.Host"
│ └── named pipe "OtOpcUaGalaxy"
│ ▲
│ │ pipe IPC
│ │
│ GalaxyProxyDriver ◄── parity test (legacy half)
│
└── mxaccessgw service
└── MxAccess COM, ClientName "OtOpcUa-Parity"
└── gRPC on http://localhost:5120
▲
│ gRPC
│
GalaxyDriver (in-process) ◄── parity test (mxgw half)
```
Both halves talk to the **same Galaxy** through **two distinct MxAccess
sessions** (different ClientNames so they don't evict each other).
## What was on the dev box at the time
Per `~/.claude/projects/.../memory/` *as of the rig run*:
- **AVEVA System Platform + Galaxy + MXAccess runtime** — `project_aveva_platform_installed.md`.
- **`OtOpcUaGalaxyHost`** Windows service running as `dohertj2`, NSSM-wrapped,
binary at `C:\publish\OtOpcUaGalaxyHost\OtOpcUa.Driver.Galaxy.Host.exe`,
shared secret at `.local/galaxy-host-secret.txt`, ZB SQL on `localhost:1433`
— `project_galaxy_host_installed.md`. **(Service uninstalled and binary
retired as part of PR 7.2; the host source project no longer exists in
this repo.)**
- **Parity test project** (`Driver.Galaxy.ParityTests`) — committed and
skip-clean at the time of the rig run. **Deleted in PR 7.2.**
## Setup steps (one-time)
### 1. Build + run mxaccessgw
The gateway source is at `c:\Users\dohertj2\Desktop\mxaccessgw\`.
Build both halves — the worker has to be x86 net48 (MxAccess COM
bitness), the server is .NET 10:
```powershell
cd C:\Users\dohertj2\Desktop\mxaccessgw
dotnet build src\MxGateway.Worker -c Release # produces bin\x86\Release\net48\MxGateway.Worker.exe
dotnet build src\MxGateway.Server -c Release # produces bin\Release\net10.0\MxGateway.Server.dll
```
Initialize the auth database and mint an API key. The CLI mode is
gated by an `apikey` first-arg prefix:
```powershell
$env:MxGateway__ApiKeyPepper = "parity-rig-dev-pepper" # any stable string for dev
$srv = "C:\Users\dohertj2\Desktop\mxaccessgw\src\MxGateway.Server\bin\Release\net10.0\MxGateway.Server.dll"
dotnet $srv apikey init-db # → "init-db: initialized"
dotnet $srv apikey create-key `
--key-id parity-rig `
--display-name "OtOpcUa-Parity" `
--scopes "session:open,session:close,invoke:read,invoke:write,invoke:secure,events:read,metadata:read"
# → "API key: mxgw_parity-rig_<base64suffix>" ← capture this; you can't list secrets later
```
Save that exact key string for `OTOPCUA_PARITY_GW_API_KEY` in step 2.
Run the server with three env-var overrides — the defaults don't
quite match what gRPC + the parity test need:
```powershell
$env:MxGateway__ApiKeyPepper = "parity-rig-dev-pepper" # MUST match the create-key invocation
$env:Kestrel__Endpoints__Http__Url = "http://localhost:5120"
$env:Kestrel__Endpoints__Http__Protocols = "Http2" # gRPC needs h2c on plain HTTP
$env:MxGateway__Worker__ExecutablePath = `
"C:\Users\dohertj2\Desktop\mxaccessgw\src\MxGateway.Worker\bin\x86\Release\net48\MxGateway.Worker.exe"
# appsettings.json's relative path is missing the \net48 segment; absolute path sidesteps that
dotnet $srv
# → "Now listening on: http://localhost:5120"
```
The worker spawns lazily on the first OpenSession RPC — there's no
worker process visible in Task Manager until the first session. If
the worker can't spawn, the server returns `Failed to open session
session-…` with a `WorkerProcessLaunchException` in the server log.
NSSM-wrap it later if the rig becomes long-lived; for first-pass
provisioning a console window is easier to inspect.
### 2. Set the parity env vars
In the test-runner shell:
```powershell
$env:OTOPCUA_PARITY_GW_ENDPOINT = "http://localhost:5120"
$env:OTOPCUA_PARITY_GW_API_KEY = "parity-suite-key" # match the gw config
$env:OTOPCUA_PARITY_CLIENT_NAME = "OtOpcUa-Parity"
```
Elevation status doesn't matter — the legacy Galaxy.Host pipe ACL accepts
elevated and non-elevated `dohertj2` shells alike (the Administrators deny
ACE was removed 2026-04-24; see `project_galaxy_host_installed.md`).
### 3. Verify both halves resolve
```powershell
cd C:\Users\dohertj2\Desktop\lmxopcua
dotnet test tests\ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests\ `
--filter "FullyQualifiedName~HarnessShapeTests"
```
`Harness_records_a_skip_reason_for_each_unavailable_backend` is the
two-line truth-teller:
- Both `LegacyDriver` non-null + both `MxGatewayDriver` non-null → rig is up.
- One side null → read its `LegacySkipReason` / `MxGatewaySkipReason` and fix.
## Running the matrix
Once both halves resolve:
```powershell
dotnet test tests\ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests\ `
--filter "Category=ParityE2E"
```
This runs all 17 scenario tests across the seven scenario classes
(BrowseAndRead / Subscribe / Write / Alarm / History / Reconnect /
ScanState). Each scenario class is independent — failures in one don't
block the rest.
Track the result against `docs/v2/Galaxy.ParityMatrix.md`. Update each
row to:
- **green** if the scenario passes
- **yellow** if it skipped because the dev Galaxy doesn't have the right
shape (see coverage matrix below)
- **red** if it asserted a real delta — those are the deltas that block
PR 7.2; chase each before retiring the legacy backend
## Galaxy shape needed for full coverage
Skip-on-empty-shape scenarios fail-soft today. To turn a skip into a
real result, the dev Galaxy needs the shape in the right column:
| Scenario | Needs | Local rig |
|---|---|---|
| `BrowseAndReadParityTests` (3 tests) | Any deployed objects with attributes | ✅ existing seed |
| `SubscribeAndEventRateParityTests` event-rate | ≥5 attributes whose values *change* in 3s | ⚙ scriptable via graccess-cli |
| `WriteByClassificationParityTests` (FreeAccess/Operate) | A FreeAccess/Operate numeric attribute | ⚙ scriptable via graccess-cli |
| `WriteByClassificationParityTests` (Configure/Tune) | A Configure/Tune attribute | ⚙ scriptable via graccess-cli |
| `AlarmTransitionParityTests` (2 tests) | Attributes with the `$Alarm*` extension | ⚙ scriptable via graccess-cli |
| `HistoryReadParityTests` (historized set) | Attributes with the History extension | ⚙ scriptable via graccess-cli |
| `ScanStateProbeParityTests` (2 tests) | Multiple `$WinPlatform` / `$AppEngine` objects | ❌ **deferred to customer rig** — this dev box is provisioned for one platform only |
### The single-platform constraint
The dev box at `DESKTOP-6JL3KKO` is licensed / configured for a single
deployed `$WinPlatform`. Adding a second platform isn't feasible here,
so `ScanStateProbeParityTests` will skip in a "no overlap" branch on
this rig. Both of its scenarios already handle that case gracefully
(`Assert.Skip("no overlapping platform hosts between backends — likely
the transport names differ but no $WinPlatform was discovered")`), so
the matrix reports them as **n/a (deferred)** rather than red.
Plan: defer the two ScanState scenarios to a customer rig with multiple
platforms. The PR 7.2 gate accepts "n/a, deferred" on these rows
provided the legacy `GalaxyRuntimeProbeManager` and the in-process
`PerPlatformProbeWatcher` have matching unit-test coverage of the
state-decoder + member-tracking logic — which they do (PR 4.7's tests).
Treat the runtime parity check as a customer-rig acceptance gate before
that customer goes live, not a precondition for retiring the legacy
projects on this dev box.
### Provisioning the rest via graccess-cli
`C:\Users\dohertj2\Desktop\graccess\graccess_cli\` is a .NET Framework
4.8 console app over the ArchestrA GRAccess COM API. It can configure
templates, instances, attributes, UDAs, extensions, and attribute
security — i.e. every row above marked ⚙ scriptable. Full surface in
`graccess/graccess_cli/docs/usage.md` and per-area workflow guides
(`attribute-editing.md`, `template-editing.md`,
`template-instance-editing.md`).
Reserve a sandbox UDO (e.g. `OtOpcUaParityTest`) to avoid mutating
attributes on plant-relevant objects. Concrete commands per requirement:
**A FreeAccess/Operate numeric attribute** (covers WriteByClassification
FreeAccess/Operate scenario):
```powershell
graccess object uda add `
--galaxy ZB --name OtOpcUaParityTest --type template `
--uda OperateValue --data-type MxFloat `
--category MxCategoryWriteable_C --security MxSecurityOperate `
--confirm --confirm-target OtOpcUaParityTest
```
**A Configure / Tune attribute** (covers WriteByClassification
Configure/Tune scenario):
```powershell
# Tune
graccess object uda add `
--galaxy ZB --name OtOpcUaParityTest --type template `
--uda TuneValue --data-type MxFloat `
--category MxCategoryWriteable_T --security MxSecurityTune `
--confirm --confirm-target OtOpcUaParityTest
# Configure
graccess object uda add `
--galaxy ZB --name OtOpcUaParityTest --type template `
--uda ConfigValue --data-type MxFloat `
--category MxCategoryWriteable_C --security MxSecurityConfigure `
--confirm --confirm-target OtOpcUaParityTest
```
**A changing-value attribute** (covers Subscribe event-rate scenario).
Two ways:
1. *On-scan increment* — bind a script extension that bumps a counter
each scan. Simplest to author with `object extension add` against
`ScriptExtension` plus `object attribute set` for the script body
(see `attribute-editing.md` §"Edit Extensions" for the pattern).
2. *External writer loop* — leave the attribute as plain Float and run
a one-liner that writes incrementing values from the parity-test
shell. Uses the legacy backend path so it's available before the
mxgw subscriber is up. This keeps the Galaxy template clean.
For first-pass validation pick #2 — no template surgery needed, and the
write loop runs only during `dotnet test`.
**Attributes with the `$Alarm*` extension** (covers AlarmTransition
scenario). Per `attribute-editing.md` §"Edit Alarm Settings" the
likely-named attributes vary by extension type
(`Limit`, `RateOfChange`, etc.). Add the extension via:
```powershell
graccess object extension add `
--galaxy ZB --name OtOpcUaParityTest --type template `
--extension-type AnalogLimitAlarm --primitive AlarmInput `
--object-extension `
--confirm --confirm-target OtOpcUaParityTest
```
Then set HiHi/Hi/Lo/LoLo limit values + priority on the resulting
attributes via `object attribute set`. Inspect first via
`object attributes` to see the names the extension introduces — they
differ across Aveva versions.
**Attributes with the History extension** (covers HistoryRead routing
scenario). History settings are usually attribute or extension
attributes; `attribute-editing.md` §"Edit History Settings" covers the
discovery flow. Quick start:
```powershell
graccess object extension add `
--galaxy ZB --name OtOpcUaParityTest --type template `
--extension-type HistoryExtension --primitive HistoryRecord `
--object-extension `
--confirm --confirm-target OtOpcUaParityTest
# Then enable history on whichever attribute the extension points at
graccess object attribute set `
--galaxy ZB --name OtOpcUaParityTest --type template `
--attribute HistoryEnabled --value true --data-type bool `
--confirm --confirm-target OtOpcUaParityTest
```
**Deploy + restart Galaxy.Host after any of the above** so MxAccess
sees the change:
```powershell
graccess object deploy --galaxy ZB --name OtOpcUaParityTest_001 `
--confirm --confirm-target OtOpcUaParityTest_001
sc.exe restart OtOpcUaGalaxyHost # service no longer exists post-PR-7.2; in the modern shape, restart mxaccessgw instead
```
Then re-run the parity matrix. The previously-skipped scenarios should
now find a sandbox attribute matching their selector and assert.
## Soak run
The 24h × 50k soak gates the production confidence half of PR 7.2.
```powershell
$env:OTOPCUA_SOAK_RUN = "1"
$env:OTOPCUA_SOAK_TAGS = "<actual tag count if Galaxy < 50k>"
$env:OTOPCUA_SOAK_MINUTES = "1440" # default 24h; compress for first runs
$env:OTOPCUA_SOAK_DROP_PCT = "0.5"
dotnet test tests\ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests\ `
--filter "Category=Soak"
```
The test logs a per-minute CSV-style line to stdout:
```
soak,1.0,received=51234,dispatched=51234,dropped=0,ws_mb=412
soak,2.0,received=102468,dispatched=102468,dropped=0,ws_mb=415
...
```
Capture stdout to a file for post-run analysis. The three guards
(`received` growing, `dropped/received` ratio, working-set delta) all
fire mid-run rather than at end-of-test, so a failure surfaces within
the first few minutes if the architecture is wrong.
## Compressed-tag soak (when Galaxy isn't 50k tags)
A first-pass validation is fine with the override:
```powershell
$env:OTOPCUA_SOAK_RUN = "1"
$env:OTOPCUA_SOAK_TAGS = "500" # whatever the dev Galaxy has
$env:OTOPCUA_SOAK_MINUTES = "60" # one hour is enough to surface plumbing bugs
$env:OTOPCUA_SOAK_DROP_PCT = "1.0"
```
This validates the *plumbing* (bounded channel, pump invariants, leak
guard) but doesn't pin the 50k-tag scaling assertion. Defer the full
50k validation to a customer rig with that scale, or build a synthetic
Galaxy with a script that imports 50k attributes onto a generated UDO
(~2 hours of one-off work).
## Troubleshooting
- **`MxGatewaySkipReason` says "mxaccessgw not reachable"** — the gw
isn't listening, or it's on a different port. `Test-NetConnection
localhost -Port 5120` is the quick check.
- **`MxGatewaySkipReason` says "mxgateway backend boot failed:
RpcException: Unauthenticated"** — API key mismatch. Verify the
`OTOPCUA_PARITY_GW_API_KEY` env var matches the gw's configured key.
- **`LegacySkipReason` says "Galaxy ZB SQL not reachable on
localhost:1433"** — SQL Server isn't running, or its TCP listener is
off. Check `services.msc` for the SQL Server (default) instance.
- **`LegacySkipReason` says "Galaxy.Host EXE not built"** — at rig time
the parity harness looked under
`src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/bin/Debug/net48/` for the
EXE it spawned as a subprocess, separate from the published copy at
`C:\publish\OtOpcUaGalaxyHost\` used by the Windows service. **Both
the source project and the published binary were removed in PR 7.2,
so this troubleshooting branch no longer applies — the legacy half
cannot be brought up at all.**
- **Both halves resolve but parity scenarios assert deltas** — that's
the expected outcome the rig exists to surface. Review each delta
against `docs/v2/Galaxy.ParityMatrix.md`'s "Accepted deltas" section
to decide whether it's a real bug or a pre-accepted divergence.
## After the rig is green
When the matrix is fully green or carries documented accepted-deltas,
PR 7.2 (legacy project deletion) is unblocked. The only follow-up is
to promote any newly-discovered accepted-delta to the matrix doc with
the why so the matrix history stays auditable.
docs/v2/Galaxy.Performance.md
+152
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@@ -0,0 +1,152 @@
# Galaxy backend performance
This document covers the performance surface of the in-process
`GalaxyDriver` (the v2 mxgw backend) — the ActivitySource it emits, the
metrics on its EventPump, the soak scenario that validates it, and the
tuning knobs you can reach for when the dev parity rig surfaces a hot
spot.
## Tracing surface (PR 6.1)
The driver emits spans on the `ZB.MOM.WW.OtOpcUa.Driver.Galaxy`
ActivitySource. No package dependency on OpenTelemetry — the host
process picks the listener (OTLP exporter, dotnet-trace, Application
Insights). Wire it via `OpenTelemetry.Trace.AddSource(...)` in the
host's tracing pipeline.
| Span | Source | Tags |
|------|--------|------|
| `galaxy.subscribe_bulk` | `TracedGalaxySubscriber` | `galaxy.client`, `galaxy.tag_count`, `galaxy.buffered_interval_ms`, `galaxy.success_count` |
| `galaxy.unsubscribe_bulk` | `TracedGalaxySubscriber` | `galaxy.client`, `galaxy.tag_count` |
| `galaxy.stream_events` | `TracedGalaxySubscriber` | `galaxy.client`, `galaxy.event_count` (set on stream end) |
| `galaxy.write` | `TracedGalaxyDataWriter` | `galaxy.client`, `galaxy.tag_count`, `galaxy.secured_write_count`, `galaxy.success_count` |
| `galaxy.get_hierarchy` | `TracedGalaxyHierarchySource` | `galaxy.client`, `galaxy.object_count` |
The stream-events span deliberately covers the *entire* stream lifetime
rather than per-event spans — at 50k tags / 1Hz the per-event volume
would dominate the trace pipeline. Per-event visibility flows through
the metrics surface instead.
## Metrics surface (PR 6.2)
`EventPump` publishes three counters on the
`ZB.MOM.WW.OtOpcUa.Driver.Galaxy` meter, each tagged with
`galaxy.client` so multi-driver hosts can split by source:
| Counter | Unit | Meaning |
|---------|------|---------|
| `galaxy.events.received` | `{event}` | MxEvents read from the gateway StreamEvents stream |
| `galaxy.events.dispatched` | `{event}` | MxEvents that made it through the bounded channel into `OnDataChange` |
| `galaxy.events.dropped` | `{event}` | MxEvents discarded because the bounded channel was full (newest-dropped) |
The invariant is `received = dispatched + dropped + (in-flight in the
channel)`. Watch the dropped counter — it is the leading indicator of
listener back-pressure. A non-zero dropped rate means a downstream
consumer (DriverNodeManager → UA notification queue → client) is
slower than the gw event stream; investigate that consumer before
raising `EventPump` channel capacity.
### Bounded channel design
The pump runs two background tasks:
1. **Producer** — reads from `IGalaxySubscriber.StreamEventsAsync`,
increments `events.received`, and `TryWrite`s into a bounded
`Channel<MxEvent>`. When the channel is full, the producer counts
the drop and continues reading the gw stream so back-pressure does
not propagate upstream (which would stall the gw worker and cascade
to *all* driver instances sharing that worker).
2. **Consumer** — reads from the channel, fans out via
`SubscriptionRegistry`, increments `events.dispatched`.
Default channel capacity is 50_000 (one second of headroom at 50k
tags / 1Hz). Override via the `EventPump` constructor's
`channelCapacity` parameter; the public-facing wiring path in
`GalaxyDriver.EnsureEventPumpStarted` does not yet expose this through
`GalaxyDriverOptions` because no parity scenario has needed it. Add it
when soak data does.
## Buffered update interval (PR 6.3)
`MxAccess.PublishingIntervalMs` (default 1000) flows through both
subscribe paths:
- `GalaxyDriver.SubscribeAsync` — the caller's `publishingInterval`
wins when non-zero (the server's UA subscription publishingInterval
drives this in production). When the caller passes
`TimeSpan.Zero`, the configured option is the fallback.
- `PerPlatformProbeWatcher` — the watcher passes the configured value
through `SubscribeBulkAsync` so probe `ScanState` changes publish at
the deployment's chosen cadence.
A session-level `SetBufferedUpdateInterval` RPC exists in the gw
protocol but the .NET client doesn't expose a typed helper yet —
adjusting an existing subscription's interval mid-flight is a
follow-up. Today's path subscribes once at the right interval, which
covers the common case.
## Soak scenario (PR 6.4)
`SoakScenarioTests.Soak_HoldsSubscription_AndKeepsEventStreamFlowing`
in `Driver.Galaxy.ParityTests` is the long-running validation. It
subscribes a configurable tag count (default 50_000), holds the
subscription for a configurable duration (default 24h), polls the
three counters every minute, and asserts:
- `events.received` continues to grow (gw stream isn't stuck)
- `events.dropped / events.received` stays under the configured
ceiling (default 0.5%)
- process working-set doesn't grow more than 1 GB above baseline
(leak guard)
Always skipped unless the operator opts in:
```bash
# Full 24h × 50k soak (production validation)
OTOPCUA_SOAK_RUN=1 dotnet test tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests/
# Compressed CI-friendly run (10min × 1k tags, 1% drop ceiling)
OTOPCUA_SOAK_RUN=1 OTOPCUA_SOAK_MINUTES=10 OTOPCUA_SOAK_TAGS=1000 \
OTOPCUA_SOAK_DROP_PCT=1.0 \
dotnet test tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.ParityTests/
```
The scenario writes a per-minute CSV-style row to stdout
(`soak,<minutes>,received=…,dispatched=…,dropped=…,ws_mb=…`) so an
operator can grep the test runner output mid-run.
## Tuned defaults (PR 6.5)
| Option | Default | Source | Notes |
|--------|---------|--------|-------|
| `Gateway.ConnectTimeoutSeconds` | 10 | unchanged | Cold-start network paths fit comfortably; soak never observed >2s |
| `Gateway.DefaultCallTimeoutSeconds` | 30 | **bumped from 5** in PR 6.5 | A 50k-tag `SubscribeBulk` can exceed 5s under MxAccess COM apartment lock contention; 30s leaves headroom while still failing fast on a wedged worker |
| `Gateway.StreamTimeoutSeconds` | 0 (unlimited) | unchanged | The stream must run for the lifetime of the driver |
| `MxAccess.PublishingIntervalMs` | 1000 | unchanged | Matches the legacy `LMXProxyServer` cadence; deployments needing tighter health visibility can dial down |
| `Reconnect.InitialBackoffMs` | 500 | unchanged | First retry shouldn't dogpile a recovering gw |
| `Reconnect.MaxBackoffMs` | 30_000 | unchanged | 30s ceiling so a long-down gw doesn't sit in 5+ min backoff |
| `Repository.DiscoverPageSize` | 5000 | unchanged | One Galaxy page round-trip per ~5k objects; soak hadn't surfaced pressure |
| `EventPump` channel capacity | 50_000 | unchanged | One second of headroom at 50k tags / 1Hz |
The unchanged rows are not "definitely correct" — they are "no live
data argues for changing them." Re-run the soak scenario after every
substantive driver change, and revise this table when the data does.
## Where to look first when something's slow
1. **Slow `Discover`?** Inspect `galaxy.get_hierarchy` span duration
and `galaxy.object_count`. The gw walks the Galaxy DB serially;
slow Discovers usually mean a slow ZB SQL.
2. **Subscribe pile-up?** `galaxy.subscribe_bulk` span duration
correlates with `galaxy.tag_count`. If duration ÷ tag_count starts
climbing, the gw worker is probably under apartment-lock pressure.
3. **Events stalled?** Watch `galaxy.events.received`. Flat-lined
means the gw stream is wedged — kick the reconnect supervisor by
forcing a `ReinitializeAsync`.
4. **Dropped events?** Non-zero `galaxy.events.dropped` means a slow
downstream consumer. Profile `OnDataChange` handlers in
`DriverNodeManager` before bumping the channel capacity.
5. **Memory growing?** Confirm with the soak scenario's working-set
leak guard. Likely culprits: lingering subscription handles in
`SubscriptionRegistry`, or a downstream consumer retaining
`DataValueSnapshot` references past their useful life.
docs/v2/dev-environment.md
+88 -42
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@@ -4,6 +4,7 @@
>
> **Branch**: `v2`
> **Created**: 2026-04-17
> **Updated 2026-04-28**: Docker workloads moved off the Windows dev VM to a shared Linux Docker host at `10.100.0.35` so the dev VM can have its GPU re-attached via ESXi passthrough (Hyper-V/WSL2 was blocking it). The two-tier model below is updated accordingly: per-developer Docker Desktop is gone; SQL Server + driver fixtures all live on the central Linux host, identifiable via `docker ps --filter label=project=lmxopcua`.
## Scope
@@ -13,30 +14,31 @@ Every external resource a developer needs on their machine, plus the dedicated i
## Two Environment Tiers
Per decision #99:
Per decision #99 (updated 2026-04-28):
| Tier | Purpose | Where it runs | Resources |
|------|---------|---------------|-----------|
| **PR-CI / inner-loop dev** | Fast, runs on minimal Windows + Linux build agents and developer laptops | Each developer's machine; CI runners | Pure-managed in-process simulators (NModbus, OPC Foundation reference server, FOCAS TCP stub from test project). No Docker, no VMs. |
| **Nightly / integration CI** | Full driver-stack validation against real wire protocols | One dedicated Windows host with Docker Desktop + Hyper-V + a TwinCAT XAR VM | All Docker simulators (`oitc/modbus-server`, `ab_server`, Snap7), TwinCAT XAR VM, Galaxy.Host installer + dev Galaxy access, FOCAS TCP stub binary, FOCAS FaultShim assembly |
| **PR-CI / inner-loop dev** | Fast, runs on minimal Windows + Linux build agents and developer laptops | Each developer's machine; CI runners | Pure-managed in-process simulators (NModbus, OPC Foundation reference server, FOCAS TCP stub from test project). No Docker, no VMs locally. |
| **Integration / nightly CI** | Full driver-stack validation against real wire protocols | **Shared Linux Docker host at `10.100.0.35`** (Debian 13, Docker 29.2.1) — one host for all developers; replaces the former per-developer Docker Desktop + Hyper-V model | All Docker simulators (pymodbus, ab_server, python-snap7, opc-plc) + central SQL Server, all running as `/opt/otopcua-<driver>/` stacks with the `project=lmxopcua` label. TwinCAT XAR + the Galaxy/mxaccessgw stack stay on the Windows dev VM (license + Hyper-V constraints unchanged) |
The tier split keeps developer onboarding fast (no Docker required for first build) while concentrating the heavy simulator setup on one machine the team maintains.
The Linux Docker host is shared because (a) only one team member needs it active at a time, (b) it removes the per-developer Docker Desktop install, and (c) the dev VM no longer needs Hyper-V/WSL2 — freeing it for GPU passthrough.
## Installed Inventory — This Machine
## Installed Inventory — Dev VM (`DESKTOP-6JL3KKO`)
Running record of every v2 dev service stood up on this developer machine. Updated on every install / config change. Credentials here are **dev-only** per decision #137 — production uses Integrated Security / gMSA per decision #46 and never any value in this table.
Running record of v2 dev services on the Windows dev VM. Updated on every install / config change. Credentials here are **dev-only** per decision #137 — production uses Integrated Security / gMSA per decision #46 and never any value in this table.
**Last updated**: 2026-04-17
**Last updated**: 2026-04-28 — Docker Desktop + WSL2 removed; Docker workloads now live on the Linux Docker host (see next section).
### Host
| Attribute | Value |
|-----------|-------|
| Machine name | `DESKTOP-6JL3KKO` |
| User | `dohertj2` (member of local Administrators + `docker-users`) |
| VM platform | VMware (`VMware20,1`), nested virtualization enabled |
| Machine name | `DESKTOP-6JL3KKO` (10.100.0.48) |
| User | `dohertj2` (local Administrators) |
| VM platform | VMware ESXi |
| CPU | Intel Xeon E5-2697 v4 @ 2.30GHz (3 vCPUs) |
| OS | Windows (WSL2 + Hyper-V Platform features installed) |
| OS | Windows 10 Enterprise (10.0.19045) |
| GPU | (Re-attached after WSL2/Hyper-V removal) |
### Toolchain
@@ -46,36 +48,40 @@ Running record of every v2 dev service stood up on this developer machine. Updat
| .NET AspNetCore runtime | 10.0.5 | `C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\` | Pre-installed |
| .NET NETCore runtime | 10.0.5 | `C:\Program Files\dotnet\shared\Microsoft.NETCore.App\` | Pre-installed |
| .NET WindowsDesktop runtime | 10.0.5 | `C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\` | Pre-installed |
| .NET Framework 4.8 SDK | — | Pending (needed for Phase 2 Galaxy.Host; not yet required) | — |
| .NET Framework 4.8 SDK | — | Optional — only needed when building the mxaccessgw worker (sibling repo, x86 net48) | — |
| Git | Pre-installed | Standard | — |
| PowerShell 7 | Pre-installed | Standard | — |
| winget | v1.28.220 | Standard Windows feature | — |
| WSL | Default v2, distro `docker-desktop` `STATE Running` | — | `wsl --install --no-launch` (2026-04-17) |
| Docker Desktop | 29.3.1 (engine) / Docker Desktop 4.68.0 (app) | Standard | `winget install --id Docker.DockerDesktop` (2026-04-17) |
| Docker CLI (standalone, no daemon) | 29.3.1 | `%USERPROFILE%\bin\docker.exe` | Static binary from download.docker.com (2026-04-28) |
| Docker Compose CLI plugin | latest | `%USERPROFILE%\.docker\cli-plugins\docker-compose.exe` | Direct download from github.com/docker/compose (2026-04-28) |
| `lmxopcua-fix.ps1` helper | n/a | `%USERPROFILE%\bin\lmxopcua-fix.ps1` | See "Docker host" section below |
| `dotnet-ef` CLI | 10.0.6 | `%USERPROFILE%\.dotnet\tools\dotnet-ef.exe` | `dotnet tool install --global dotnet-ef --version 10.0.*` (2026-04-17) |
| ~~Docker Desktop~~ | — | Removed 2026-04-28 — replaced by remote Linux Docker host | — |
| ~~WSL2 (`docker-desktop` distro)~~ | — | Removed 2026-04-28 (frees Hyper-V for GPU passthrough) | — |
### Services
| Service | Container / Process | Version | Host:Port | Credentials (dev-only) | Data location | Status |
|---------|---------------------|---------|-----------|------------------------|---------------|--------|
| **Central config DB** | Docker container `otopcua-mssql` (image `mcr.microsoft.com/mssql/server:2022-latest`) | 16.0.4250.1 (RTM-CU24-GDR, KB5083252) | `localhost:14330` (host) → `1433` (container) — remapped from 1433 to avoid collision with the native MSSQL14 instance that hosts the Galaxy `ZB` DB (both bind 0.0.0.0:1433; whichever wins the race gets connections) | User `sa` / Password `OtOpcUaDev_2026!` | Docker named volume `otopcua-mssql-data` (mounted at `/var/opt/mssql` inside container) | ✅ Running — `InitialSchema` migration applied, 16 entity tables live |
| **Central config DB** | Docker container `otopcua-mssql` on the Linux Docker host (image `mcr.microsoft.com/mssql/server:2022-latest`) | 16.0.4250.1 (RTM-CU24-GDR, KB5083252) | `10.100.0.35:14330` → `1433` (container) — port 14330 retained from the previous local-container setup so connection-string ports don't churn | User `sa` / Password `OtOpcUaDev_2026!` | Docker named volume `otopcua-mssql-data` on the Docker host | ✅ Running on Docker host (`/opt/otopcua-mssql/`) since 2026-04-28; carries `project=lmxopcua` label |
| Dev Galaxy (AVEVA System Platform) | Local install on this dev box — full ArchestrA + Historian + OI-Server stack | v1 baseline | Local COM via MXAccess (`C:\Program Files (x86)\ArchestrA\Framework\bin\ArchestrA.MXAccess.dll`); Historian via `aaH*` services; SuiteLink via `slssvc` | Windows Auth | Galaxy repository DB `ZB` on local SQL Server (separate instance from `otopcua-mssql` — legacy v1 Galaxy DB, not related to v2 config DB) | ✅ **Fully available — Phase 2 lift unblocked.** 27 ArchestrA / AVEVA / Wonderware services running incl. `aaBootstrap`, `aaGR` (Galaxy Repository), `aaLogger`, `aaUserValidator`, `aaPim`, `ArchestrADataStore`, `AsbServiceManager`, `AutoBuild_Service`; full Historian set (`aahClientAccessPoint`, `aahGateway`, `aahInSight`, `aahSearchIndexer`, `aahSupervisor`, `InSQLStorage`, `InSQLConfiguration`, `InSQLEventSystem`, `InSQLIndexing`, `InSQLIOServer`, `InSQLManualStorage`, `InSQLSystemDriver`, `HistorianSearch-x64`); `slssvc` (Wonderware SuiteLink); `OI-Gateway` install present at `C:\Program Files (x86)\Wonderware\OI-Server\OI-Gateway\` (decision #142 AppServer-via-OI-Gateway smoke test now also unblocked) |
| GLAuth (LDAP) | Local install at `C:\publish\glauth\` | v2.4.0 | `localhost:3893` (LDAP) / `3894` (LDAPS, disabled) | Direct-bind `cn={user},dc=lmxopcua,dc=local` per `auth.md`; users `readonly`/`writeop`/`writetune`/`writeconfig`/`alarmack`/`admin`/`serviceaccount` (passwords in `glauth.cfg` as SHA-256) | `C:\publish\glauth\` | ✅ Running (NSSM service `GLAuth`). Phase 1 Admin uses GroupToRole map `ReadOnly→ConfigViewer`, `WriteOperate→ConfigEditor`, `AlarmAck→FleetAdmin`. v2-rebrand to `dc=otopcua,dc=local` is a future cosmetic change |
| OPC Foundation reference server | Not yet built | — | `localhost:62541` (target) | `user1` / `password1` (reference-server defaults) | — | Pending (needed for Phase 5 OPC UA Client driver testing) |
| FOCAS TCP stub | Not yet built | — | `localhost:8193` (target) | n/a | — | Pending (built in Phase 5) |
| Modbus simulator (`oitc/modbus-server`) | — | — | `localhost:502` (target) | n/a | — | Pending (needed for Phase 3 Modbus driver; moves to integration host per two-tier model) |
| libplctag `ab_server` | — | — | `localhost:44818` (target) | n/a | — | Pending (Phase 3/4 AB CIP and AB Legacy drivers) |
| Snap7 Server | — | — | `localhost:102` (target) | n/a | — | Pending (Phase 4 S7 driver) |
| TwinCAT XAR VM | — | — | `localhost:48898` (ADS) (target) | TwinCAT default route creds | — | Pending — runs in Hyper-V VM, not on this dev box (per decision #135) |
| OPC Foundation reference server | Not yet built | — | `10.100.0.35:62541` (target) | `user1` / `password1` (reference-server defaults) | — | Pending (needed for Phase 5 OPC UA Client driver testing) |
| FOCAS TCP stub | Not yet built | — | `10.100.0.35:8193` (target) | n/a | — | Pending (built in Phase 5; runs on Docker host) |
| Modbus simulator (`otopcua-pymodbus:3.13.0`) | Docker compose at `/opt/otopcua-modbus/` on Docker host | pinned 3.13.0 | `10.100.0.35:5020` | n/a | n/a | Stack staged; bring up with `lmxopcua-fix up modbus <profile>` from this VM |
| AB CIP fixture (`otopcua-ab-server:libplctag-release`) | Docker compose at `/opt/otopcua-abcip/` on Docker host | source-pinned `release` tag | `10.100.0.35:44818` | n/a | n/a | Stack staged; bring up with `lmxopcua-fix up abcip <profile>` from this VM |
| S7 fixture (`otopcua-python-snap7:1.0`) | Docker compose at `/opt/otopcua-s7/` on Docker host | python-snap7 ≥2.0 | `10.100.0.35:1102` | n/a | n/a | Stack staged; bring up with `lmxopcua-fix up s7 s7_1500` from this VM |
| OPC UA simulator (`mcr.microsoft.com/iotedge/opc-plc:2.14.10`) | Docker compose at `/opt/otopcua-opcuaclient/` on Docker host | pinned 2.14.10 | `10.100.0.35:50000` | anonymous | n/a | Stack staged; bring up with `lmxopcua-fix up opcuaclient` from this VM |
| TwinCAT XAR VM | — | — | TBD via Hyper-V on a separate Windows host (NOT this dev VM) | TwinCAT default route creds | — | Pending — Hyper-V removed from this dev VM; XAR will live on a separate dedicated Windows machine if needed |
### Connection strings for `appsettings.Development.json`
Copy-paste-ready. **Never commit these to the repo** — they go in `appsettings.Development.json` (gitignored per the standard .NET convention) or in user-scoped dotnet secrets.
Copy-paste-ready. The checked-in `appsettings.json` defaults already point at the Docker host (`10.100.0.35,14330`), so `appsettings.Development.json` is only needed for per-developer overrides.
```jsonc
{
"ConfigDatabase": {
"ConnectionString": "Server=localhost,14330;Database=OtOpcUaConfig_Dev;User Id=sa;Password=OtOpcUaDev_2026!;TrustServerCertificate=true;Encrypt=false;"
"ConnectionString": "Server=10.100.0.35,14330;Database=OtOpcUaConfig_Dev;User Id=sa;Password=OtOpcUaDev_2026!;TrustServerCertificate=true;Encrypt=false;"
},
"Authentication": {
"Ldap": {
@@ -89,29 +95,26 @@ Copy-paste-ready. **Never commit these to the repo** — they go in `appsettings
}
```
LDAP host stays `localhost` because GLAuth still runs as a native NSSM service on this dev VM (not yet migrated to the Docker host).
For xUnit test fixtures that need a throwaway DB per test run, build connection strings with `Database=OtOpcUaConfig_Test_{timestamp}` to avoid cross-run pollution.
### Container management quick reference
All commands SSH into the Docker host. The standalone Windows `docker.exe` on this VM has no daemon — every operation runs server-side via the helper.
```powershell
# Start / stop the SQL Server container (survives reboots via Docker Desktop auto-start)
docker stop otopcua-mssql
docker start otopcua-mssql
# Status / log / lifecycle from this VM
lmxopcua-fix ls # list lmxopcua-tagged containers + status
lmxopcua-fix logs mssql # SQL Server log tail
ssh dohertj2@10.100.0.35 'docker stop otopcua-mssql; docker start otopcua-mssql'
ssh dohertj2@10.100.0.35 'docker logs otopcua-mssql --tail 50'
# Logs (useful for diagnosing startup failures or login issues)
docker logs otopcua-mssql --tail 50
# sqlcmd inside the container (run on the Docker host)
ssh dohertj2@10.100.0.35 'docker exec otopcua-mssql /opt/mssql-tools18/bin/sqlcmd -S localhost -U sa -P "OtOpcUaDev_2026!" -C -Q "SELECT @@VERSION"'
# Shell into the container (rarely needed; sqlcmd is the usual tool)
docker exec -it otopcua-mssql bash
# Query via sqlcmd inside the container (Git Bash needs MSYS_NO_PATHCONV=1 to avoid path mangling)
MSYS_NO_PATHCONV=1 docker exec otopcua-mssql /opt/mssql-tools18/bin/sqlcmd -S localhost -U sa -P "OtOpcUaDev_2026!" -C -Q "SELECT @@VERSION"
# Nuclear reset: drop the container + volume (destroys all DB data)
docker stop otopcua-mssql
docker rm otopcua-mssql
docker volume rm otopcua-mssql-data
# …then re-run the docker run command from Bootstrap Step 6
# Nuclear reset (destroys dev DB data)
ssh dohertj2@10.100.0.35 'cd /opt/otopcua-mssql && docker compose down -v && docker compose up -d'
```
### Credential rotation
@@ -125,7 +128,7 @@ Dev credentials in this inventory are convenience defaults, not secrets. Change
| Resource | Purpose | Type | Default port | Default credentials | Owner |
|----------|---------|------|--------------|---------------------|-------|
| **.NET 10 SDK** | Build all .NET 10 x64 projects | OS install | n/a | n/a | Developer |
| **.NET Framework 4.8 SDK + targeting pack** | Build `Driver.Galaxy.Host` (Phase 2+) | Windows install | n/a | n/a | Developer |
| **.NET Framework 4.8 SDK + targeting pack** | Optional — build the mxaccessgw worker (sibling repo, x86 net48) | Windows install | n/a | n/a | Developer |
| **Visual Studio 2022 17.8+ or Rider 2024+** | IDE (any C# IDE works; these are the supported configs) | OS install | n/a | n/a | Developer |
| **Git** | Source control | OS install | n/a | n/a | Developer |
| **PowerShell 7.4+** | Compliance scripts (`phase-N-compliance.ps1`) | OS install | n/a | n/a | Developer |
@@ -247,7 +250,7 @@ Order matters because some installs have prerequisites and several need admin el
winget install --id Microsoft.DotNet.SDK.10 --accept-package-agreements --accept-source-agreements
```
2. **Install .NET Framework 4.8 SDK + targeting pack** — only needed when starting Phase 2 (Galaxy.Host); skip for Phase 0–1 if not yet there
2. **Install .NET Framework 4.8 SDK + targeting pack** — optional, only needed when building the mxaccessgw worker (sibling repo, x86 net48). Not required by anything in this repo.
```powershell
winget install --id Microsoft.DotNet.Framework.DeveloperPack_4 --accept-package-agreements --accept-source-agreements
```
@@ -405,6 +408,49 @@ For production:
- Per-NodeId credentials in `ClusterNodeCredential` table (per decision #83)
- Admin app uses LDAP (no SQL credential at all on the user-facing side)
## Service Refresh — `Refresh-Services.ps1`
The deploy host hosts three NSSM-wrapped services (`MxAccessGw`,
`OtOpcUaWonderwareHistorian`, `OtOpcUa`) that consume binaries from
`C:\publish\`. After landing changes in either repo, refresh the
deployed bits with `scripts\install\Refresh-Services.ps1`:
```powershell
# Default invocation (dev rig).
& C:\Users\dohertj2\Desktop\lmxopcua\scripts\install\Refresh-Services.ps1
# Skip the timestamped backup (faster on iterative dev cycles).
& Refresh-Services.ps1 -SkipBackup
# Dry-run — print the actions without doing them.
& Refresh-Services.ps1 -WhatIf
```
The script:
1. Stops services in reverse-dependency order (`OtOpcUa` →
`OtOpcUaWonderwareHistorian` → `MxAccessGw`) and force-kills
any residual processes.
2. Snapshots the existing `C:\publish\mxaccessgw\` and
`C:\publish\lmxopcua\` trees to `C:\publish\.backup-<timestamp>\`
for rollback (skip with `-SkipBackup`).
3. Builds + copies mxaccessgw worker (x86 net48) + server (net10.0)
binaries from the sibling repo.
4. `dotnet publish`-es the OtOpcUa server + Wonderware historian
sidecar from this repo.
5. Ensures `OTOPCUA_HISTORIAN_ALARM_WRITE_ENABLED=true` is set on
the historian service env block (PR C.2 toggle).
6. Starts services in forward-dependency order (`MxAccessGw` →
`OtOpcUaWonderwareHistorian` → `OtOpcUa`).
7. Smoke-verifies — service status, listening ports (5120 / 4840 /
4841), recent log tails.
Functional verification (alarm raise / scripted alarm historian
round-trip / sub-attribute fallback) is the operator's next step
after the refresh; see
[docs/plans/alarms-over-gateway.md](../plans/alarms-over-gateway.md)
§Track D for the scenarios.
## Test Data Seed
Each environment needs a baseline data set so cross-developer tests are reproducible. Lives in `tests/ZB.MOM.WW.OtOpcUa.IntegrationTests/SeedData/`:
@@ -482,7 +528,7 @@ Seeds are idempotent (re-runnable) and gitignored where they contain credentials
| Docker Desktop license terms change for org use | Track Docker pricing; budget approved or fall back to Podman if license becomes blocking |
| Integration host single point of failure | Document the setup so a second host can be provisioned in <2 days; test fixtures pin to a hostname so failover changes one DNS entry |
| GLAuth dev config drifts between developers | Sync script + template (Step 4) keep configs aligned; periodic review |
| Galaxy / MXAccess licensing for non-dev-machine | Galaxy stays on the dev machines that already have Aveva licenses; integration host does NOT run Galaxy (Galaxy.Host integration tests run on the dev box, not the shared host) |
| Galaxy / MXAccess licensing for non-dev-machine | Galaxy stays on the dev machines that already have Aveva licenses; integration host does NOT run Galaxy (the mxaccessgw worker requires the AVEVA stack and runs on the dev box, not the shared host) |
| Long-lived dev env credentials in dev `appsettings.Development.json` | Gitignored; documented as dev-only; production never uses these |
## Decisions to Add to plan.md
docs/v2/driver-specs.md
+59 -283
View File
@@ -10,289 +10,65 @@
### Summary
Out-of-process **Tier C** driver bridging AVEVA System Platform (Wonderware) Galaxies. The existing v1 implementation is refactored behind the new driver capability interfaces and hosted in a separate Windows service (.NET 4.8 x86) that communicates with the main OtOpcUa server (.NET 10 x64) via named pipes + MessagePack. Hosted out-of-process for **two reasons**: COM/.NET 4.8 x86 bitness constraint **and** Tier C stability isolation (per `driver-stability.md`). FOCAS is the second Tier C driver, also out-of-process — see §7.
### Library & Dependencies
| Component | Package / Source | Version | Target | Notes |
|-----------|------------------|---------|--------|-------|
| **MXAccess COM** | `ArchestrA.MxAccess` (GAC / `lib/ArchestrA.MxAccess.dll`) | version-neutral late-bound | .NET 4.8 x86 | Pinned via `<Reference Include="ArchestrA.MxAccess">` with `EmbedInteropTypes=false`; interfaces: `LMXProxyServer`, `ILMXProxyServerEvents`, `MXSTATUS_PROXY` |
| **Galaxy DB client** | `System.Data.SqlClient` (BCL) | BCL | .NET 4.8 x86 | Direct SQL for hierarchy/attribute/change-detection queries |
| **Wonderware Historian SDK** | `aahClientManaged`, `aahClientCommon` | Historian-shipped | .NET 4.8 x86 | Optional — loaded only when `Historian.Enabled=true` |
| **MessagePack-CSharp** | `MessagePack` NuGet | 2.x | .NET Standard 2.0 (Shared) | IPC serialization; shared contract between Proxy and Host |
| **Named pipes** | `System.IO.Pipes` (BCL) | BCL | both sides | IPC transport, localhost only |
### Required Components
- **AVEVA System Platform / ArchestrA Platform** deployed on the same machine as `Galaxy.Host` (installs MXAccess COM objects into the GAC)
- A **deployed Galaxy** with at least one $WinPlatform object hosting $AppEngine(s) hosting AutomationObjects
- **SQL Server** reachable from `Galaxy.Host` with the Galaxy repository database (default `ZB`); Windows Auth by default
- **32-bit .NET Framework 4.8** runtime on the Host machine (MXAccess is 32-bit COM, no 64-bit variant)
- **STA thread + Win32 message pump** inside the Host process for all COM calls and event callbacks (see §13)
- **Wonderware Historian** installed on-box or reachable via aah SDK — *only* if HDA is enabled
- **No external firewall ports** — MXAccess is local-machine COM/IPC; pipe is localhost-only. Galaxy DB port (default SQL 1433) if the ZB database is remote.
### Connection Settings (per driver instance, from central config DB)
All settings live under a schemaless `DriverConfig` JSON blob on the `DriverInstance` row. Current v1 equivalents (defaults and source file references in parentheses):
**MXAccess** (`MxAccessConfiguration.cs`):
| Setting | Type | Default | Description |
|---------|------|---------|-------------|
| `ClientName` | string | `"LmxOpcUa"` | Registration name passed to `LMXProxyServer.Register()` |
| `NodeName` | string? | `null` | Optional ArchestrA node override (null = local) |
| `GalaxyName` | string? | `null` | Optional Galaxy name override |
| `ReadTimeoutSeconds` | int | `5` | Per-read timeout |
| `WriteTimeoutSeconds` | int | `5` | Per-write timeout |
| `RequestTimeoutSeconds` | int | `30` | Outer safety timeout around any MXAccess request |
| `MaxConcurrentOperations` | int | `10` | Pool bound on in-flight MXAccess work items |
| `MonitorIntervalSeconds` | int | `5` | Connectivity heartbeat probe interval |
| `AutoReconnect` | bool | `true` | Replay stored subscriptions on COM reconnect |
| `ProbeTag` | string? | `null` | Optional heartbeat tag for health monitoring |
| `ProbeStaleThresholdSeconds` | int | `60` | Mark connection stale if no probe callback within |
| `RuntimeStatusProbesEnabled` | bool | `true` | Auto-subscribe `ScanState` for $WinPlatform / $AppEngine |
| `RuntimeStatusUnknownTimeoutSeconds` | int | `15` | Grace period before an un-probed host is assumed Stopped |
**Galaxy repository** (`GalaxyRepositoryConfiguration.cs`):
| Setting | Type | Default | Description |
|---------|------|---------|-------------|
| `ConnectionString` | string | `Server=localhost;Database=ZB;Integrated Security=true;` | ZB SQL Server connection |
| `ChangeDetectionIntervalSeconds` | int | `30` | Poll interval for `galaxy.time_of_last_deploy` |
| `CommandTimeoutSeconds` | int | `30` | SQL command timeout |
| `ExtendedAttributes` | bool | `false` | Include extended attribute metadata in discovery |
| `Scope` | enum (`Galaxy` \| `LocalPlatform`) | `Galaxy` | Address-space scope filter (commit bc282b6) |
| `PlatformName` | string? | `Environment.MachineName` | Platform to scope to when `Scope=LocalPlatform` |
**IPC** (new for v2):
| Setting | Type | Default | Description |
|---------|------|---------|-------------|
| `PipeName` | string | `otopcua-galaxy-{InstanceId}` | Named pipe name |
| `HostStartupTimeoutMs` | int | `30000` | Proxy wait for Host `Ready` handshake |
| `IpcCallTimeoutMs` | int | `15000` | Per-call RPC timeout |
### Addressing
Galaxy objects carry two names:
- **`contained_name`** — human-readable, scoped to parent; used for OPC UA browse tree
- **`tag_name`** — globally unique system identifier; used for MXAccess runtime references
| Layer | Example |
|-------|---------|
| OPC UA browse path | `TestMachine_001/DelmiaReceiver/DownloadPath` |
| OPC UA NodeId | `ns=<galaxyNs>;s=<tagName>.<AttributeName>` |
| MXAccess reference | `DelmiaReceiver_001.DownloadPath` (passed to `AddItem()`) |
Tag discovery is **dynamic** — driven by the Galaxy repository DB (`gobject`, `dynamic_attribute`, `primitive_instance`, `template_definition`). Optional `Scope=LocalPlatform` filters the hierarchy via the `hosted_by_gobject_id` chain to the subtree rooted at the local $WinPlatform (on a dev Galaxy: 49→3 objects, 4206→386 attributes).
### Data Type Mapping (`MxDataTypeMapper.cs`, `gr/data_type_mapping.md`)
| mx_data_type | Galaxy Type | OPC UA BuiltInType | CLR Type |
|--------------|-------------|--------------------|----------|
| 1 | Boolean | Boolean (i=1) | `bool` |
| 2 | Integer | Int32 (i=6) | `int` |
| 3 | Float | Float (i=10) | `float` |
| 4 | Double | Double (i=11) | `double` |
| 5 | String | String (i=12) | `string` |
| 6 | Time | DateTime (i=13) | `DateTime` |
| 7 | ElapsedTime | Double (i=11) | `double` (seconds) |
| 8 | Reference | String (i=12) | `string` |
| 13 | Enumeration | Int32 (i=6) | `int` |
| 14 / 16 | Custom | String (i=12) | `string` |
| 15 | InternationalizedString | LocalizedText (i=21) | `string` |
| (default) | Unknown | String (i=12) | `string` |
**Arrays**: `is_array=0` → ValueRank `-1` (Scalar); `is_array=1` → ValueRank `1` (OneDimension), ArrayDimensions = `[array_dimension]`.
### Security Classification Mapping (`SecurityClassificationMapper.cs`)
| security_classification | Galaxy Level | OPC UA Write Permission |
|-------------------------|--------------|-------------------------|
| 0 | FreeAccess | `WriteOperate` |
| 1 | Operate | `WriteOperate` |
| 2 | SecuredWrite | — (read-only in v1) |
| 3 | VerifiedWrite | — (read-only in v1) |
| 4 | Tune | `WriteTune` |
| 5 | Configure | `WriteConfigure` |
| 6 | ViewOnly | — (read-only) |
Maps to the OPC UA roles `ReadOnly` / `WriteOperate` / `WriteTune` / `WriteConfigure` defined in the LDAP role provider (see `docs/security.md`).
### Subscription Model — Native MXAccess Advisories
**Galaxy is one of three drivers with native subscriptions (Galaxy, TwinCAT, OPC UA Client).** No polling.
- Mechanism: `LMXProxyServer.AddItem()` → `AdviseSupervisory(handle, itemHandle)`; callbacks delivered through the `ILMXProxyServerEvents.OnDataChange` COM event
- Callback signature: `MxDataChangeHandler(itemHandle, MXSTATUS_PROXY, value, quality, timestamp)`
- Dispatch: STA COM event → dispatch-thread queue → OPC UA `ClearChangeMasks` fan-out (decouples COM thread from UA stack lock — commit c76ab8f)
- **Stored subscriptions** replayed on reconnect via `ReplayStoredSubscriptionsAsync()`
- **Probe tag** + runtime-status probes provide connection-health visibility (see §14)
- **Bad-quality fan-out**: when a host ($WinPlatform or $AppEngine) ScanState transitions to Stopped, every attribute under that host is immediately published as `BadOutOfService` (commits 7310925, c76ab8f)
### Alarm Model
In-process alarm-condition tracking (v1 baseline; extended in v2 to match `IAlarmSource`):
- **Auto-subscribed attributes per alarm-eligible object**: `InAlarm`, `Priority`, `Description` (cached for severity and message)
- **Filtering**: `AlarmFilterConfiguration.ObjectFilters[]` — include/exclude by template chain (empty = all eligible)
- **Transitions**: `InAlarm` change → OPC UA A&C `AlarmConditionState` event (Active / Return to Normal)
- **Severity**: Galaxy `Priority` (1 = highest) mapped to OPC UA 1–1000 severity (higher = more severe)
- **Acknowledgment**: local OPC UA ack forwards to MXAccess write on the `Ack` attribute of the alarm-bearing object
### History Model — Wonderware Historian (optional plugin)
- Loaded **at runtime** from `ZB.MOM.WW.LmxOpcUa.Historian.Aveva.dll` when `Historian.Enabled=true`; compile-time optional
- SDK: `aahClientManaged` / `aahClientCommon`
- Supported OPC UA HDA calls:
- `HistoryReadRawModified` (raw values with bounds)
- `HistoryReadProcessed` (Historian aggregates: AVG, MIN, MAX, TIMEAVG, etc. — mapped to OPC UA aggregates)
- Continuation points for paged reads
- Only attributes flagged `historize=1` in the Galaxy DB expose `AccessLevel.HistoryRead`
### Error Mapping — MXAccess → Quality → OPC UA StatusCode
**Byte quality (OPC DA convention)** — `QualityMapper.cs`:
| OPC DA Quality | Category |
|----------------|----------|
| `>= 192` | Good |
| `64–191` | Uncertain |
| `< 64` | Bad |
**MXAccess error codes → Quality** (`MxErrorCodes.cs`):
| Code | Name | Quality |
|------|------|---------|
| 1008 | `MX_E_InvalidReference` | `BadConfigError` |
| 1012 | `MX_E_WrongDataType` | `BadConfigError` |
| 1013 | `MX_E_NotWritable` | `BadOutOfService` |
| 1014 | `MX_E_RequestTimedOut` | `BadCommFailure` |
| 1015 | `MX_E_CommFailure` | `BadCommFailure` |
| 1016 | `MX_E_NotConnected` | `BadNotConnected` |
**Quality → OPC UA StatusCode** (`QualityMapper.cs`):
| Quality | StatusCode |
|---------|-----------|
| Good | `0x00000000` |
| GoodLocalOverride | `0x00D80000` |
| Uncertain | `0x40000000` |
| Bad (generic) | `0x80000000` |
| BadCommFailure | `0x80050000` |
| BadNotConnected | `0x808A0000` |
| BadOutOfService | `0x808D0000` |
### Change Detection
- `ChangeDetectionService` polls `galaxy.time_of_last_deploy` at `ChangeDetectionIntervalSeconds` (default 30s)
- On timestamp change, `OnGalaxyChanged` fires → Host re-queries hierarchy/attributes → emits `TagSetChanged` over IPC → Proxy implements `IRediscoverable` and rebuilds the affected subtree in the address space
- Platform-scope filter (commit bc282b6) applied during hierarchy load when `Scope=LocalPlatform`
### IPC Contract (Proxy ↔ Host) — `Galaxy.Shared`
.NET Standard 2.0 MessagePack contracts. Every request carries a correlation ID; responses carry the same ID plus success/error.
**Lifecycle / handshake**:
| Message | Direction | Payload |
|---------|-----------|---------|
| `ClientHello` | Proxy → Host | InstanceId, expected protocol version |
| `HostReady` | Host → Proxy | Host version, Galaxy name, capabilities |
| `Shutdown` | Proxy → Host | Graceful stop |
**Tag discovery** (`ITagDiscovery`):
| Message | Direction | Payload |
|---------|-----------|---------|
| `DiscoverHierarchyRequest` | Proxy → Host | `Scope`, `PlatformName` |
| `DiscoverHierarchyResponse` | Host → Proxy | `GalaxyObjectInfo[]` (TagName, ContainedName, ParentTagName, TemplateChain, category) |
| `DiscoverAttributesRequest` | Proxy → Host | `TagName[]` |
| `DiscoverAttributesResponse` | Host → Proxy | `GalaxyAttributeInfo[]` (Name, MxDataType, IsArray, ArrayDim, SecurityClass, Historized, WriteableRuntimeChecked) |
| `TagSetChangedNotification` | Host → Proxy | New deploy timestamp; triggers re-discover |
**Read / Write** (`IReadable`, `IWritable`):
| Message | Direction | Payload |
|---------|-----------|---------|
| `ReadRequest` | Proxy → Host | `TagRef[]` (tag_name + attribute) |
| `ReadResponse` | Host → Proxy | `VtqPayload[]` (value, quality, timestamp, statusCode) |
| `WriteRequest` | Proxy → Host | `(TagRef, Value, ExpectedDataType)[]` |
| `WriteResponse` | Host → Proxy | `(TagRef, StatusCode)[]` |
**Subscription** (`ISubscribable`):
| Message | Direction | Payload |
|---------|-----------|---------|
| `SubscribeRequest` | Proxy → Host | `TagRef[]` + Proxy-generated subscription ID |
| `SubscribeResponse` | Host → Proxy | Per-tag subscribe ack + handle |
| `UnsubscribeRequest` | Proxy → Host | handles |
| `DataChangeNotification` | Host → Proxy (push) | handle, VTQ, sequence number |
| `ProbeHealthNotification` | Host → Proxy (push) | probe tag staleness, `ScanState` transitions, overall connected/disconnected |
**Alarms** (`IAlarmSource`):
| Message | Direction | Payload |
|---------|-----------|---------|
| `AlarmEventNotification` | Host → Proxy (push) | source tag, InAlarm, Priority, Description, severity, transition type |
| `AlarmAckRequest` | Proxy → Host | source tag, user, comment |
**History** (`IHistoryProvider`):
| Message | Direction | Payload |
|---------|-----------|---------|
| `HistoryReadRawRequest` | Proxy → Host | TagRef, start, end, numValues, returnBounds, continuationPoint |
| `HistoryReadRawResponse` | Host → Proxy | values + next continuation point |
| `HistoryReadProcessedRequest` | Proxy → Host | TagRef, aggregateId, start, end, resampleInterval |
| `HistoryReadProcessedResponse` | Host → Proxy | aggregated values |
**Framing**: length-prefixed MessagePack frames over a single `NamedPipeServerStream` in `PipeTransmissionMode.Byte`. Separate outgoing pipe for push notifications or multiplex via message type tag.
### Threading / COM Constraints
- **STA thread** (`StaComThread.cs`) hosts MXAccess: `ApartmentState.STA`, raw Win32 `GetMessage` / `DispatchMessage` loop
- Work items marshaled in via `PostThreadMessage(WM_APP=0x8000)`
- **Per-handle serialization**: LMXProxyServer is not thread-safe — all Read/Write/Subscribe calls on one handle run serially via the STA queue
- **Dispatch thread** (separate from STA thread) drains `_pendingDataChanges` to the OPC UA framework; decouples the STA pump from UA stack locks so a slow subscriber can't back up COM event delivery
- **Reentrancy guards** — event unwiring must precede `Marshal.ReleaseComObject()` on disconnect
### Runtime Status (recent commits bc282b6 / 4b209f6 / 7310925 / c76ab8f / 0003984)
- `GalaxyRuntimeProbeManager` auto-subscribes `<ObjectName>.ScanState` for every $WinPlatform (category 1) and $AppEngine (category 3) in scope
- Per-host state machine: `Unknown → Running | Stopped`; transitions fire `_onHostStopped` / `_onHostRunning` callbacks on the dispatch thread
- **Synthetic OPC UA nodes** expose `ScanState` per host as read-only variables so clients see runtime topology without the dashboard
- **HealthCheck Rule 2e** monitors probe subscription health; a failed probe can no longer leave phantom entries that fan out false `BadOutOfService`
- Generalizes to the driver-agnostic `IHostConnectivityProbe` capability interface in v2 (see `plan.md` §5a)
### Implementation Notes
- **First Tier C out-of-process driver** — uses the `Galaxy.Proxy` / `Galaxy.Host` / `Galaxy.Shared` three-project split. The pattern is reusable; FOCAS is the second adopter (see §7), and any future driver with bitness, licensing, or stability-isolation needs reuses the same template. See `driver-stability.md` for the generalized contract
- `Galaxy.Proxy` (in the main server) implements `IDriver`, `ITagDiscovery`, `IRediscoverable`, `IReadable`, `IWritable`, `ISubscribable`, `IAlarmSource`, `IHistoryProvider`, `IHostConnectivityProbe`
- `Galaxy.Host` owns `MxAccessBridge`, `GalaxyRepository`, alarm tracking, `GalaxyRuntimeProbeManager`, and the Historian plugin — no reference to `Core.Abstractions`
- `Galaxy.Shared` is .NET Standard 2.0, referenced by both sides
- Existing v1 code is the implementation — **refactor in place** (extract capability interfaces first, then move behind IPC — see `plan.md` Decision #55)
- **Parity gate**: v2 driver must pass v1 `IntegrationTests` suite + scripted Client.CLI walkthrough before Phase 3 begins
### Operational Stability Notes
Galaxy has a Tier C deep dive in `driver-stability.md` covering the STA pump, COM object lifetime, subscription replay, recycle policy, and post-mortem contents. Driver-instance specifics:
- **Memory baseline scales with Galaxy size**. Watchdog floor of 200 MB above baseline + 1.5 GB hard ceiling — higher than FOCAS because legitimate Galaxy footprints are larger.
- **Slope tolerance is 5 MB/min** (more permissive than FOCAS) because address-space rebuild on redeploy can transiently allocate large amounts.
- **Known regression-prone failure modes** (closed in commits `c76ab8f` and `7310925`, must remain closed): phantom probe subscription flipping Tick() to Stopped; cross-host quality clear wiping sibling state during recovery; sync-over-async on the OPC UA stack thread; fire-and-forget alarm tasks racing shutdown. Each should have a regression test in the v2 parity suite.
- **STA pump health probe** every 10 s (separate from the proxy↔host heartbeat). A wedged pump is the most likely Tier C failure mode for Galaxy.
- **Recycle preserves cached `time_of_last_deploy` watermark** — the common case (crash unrelated to redeploy) skips full DB rediscovery for faster recovery.
### Namespace Assignment
Galaxy is the canonical **SystemPlatform-kind namespace** driver. It exposes Aveva System Platform / Galaxy objects as OPC UA — these are *processed* values with business meaning attached at Layer 3, not raw equipment signals. Per `plan.md` §4:
- The Galaxy driver's `DriverInstance.NamespaceId` must reference a `Namespace` row with `Kind = 'SystemPlatform'`.
- **UNS naming rules do NOT apply** to the Galaxy hierarchy. Tags belong to `DriverInstanceId + FolderPath` (v1 LmxOpcUa pattern preserved); `Tag.EquipmentId` is NULL.
- The Galaxy hierarchy reflects the gobject parent chain as v1 has always done — no migration to UNS path conventions in v2.
- If a future need arises to expose raw Galaxy gobject data alongside processed (e.g. an Aveva-Wonderware Historian raw signal feed), that becomes a *separate* driver instance assigned to an Equipment-kind namespace, with its own per-equipment mapping.
Galaxy (MXAccess) is a **Tier-A in-process driver** that runs in the OtOpcUa server's .NET 10 AnyCPU process and speaks gRPC to a separately installed `mxaccessgw` (sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`). The gateway owns the MXAccess COM apartment, the STA pump, and the Galaxy Repository / Historian SDK on its own host; the driver itself is platform-agnostic and carries no COM or x86 bitness constraint. Project lives at `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/`.
### Capability Surface
`GalaxyDriver` (in `GalaxyDriver.cs`) implements `IDriver`, `IDisposable`, plus six driver capabilities — eight interfaces total.
| Capability | Source files |
|------------|--------------|
| `ITagDiscovery` | `Browse/GalaxyDiscoverer.cs`, `Browse/GatewayGalaxyHierarchySource.cs`, `Browse/DataTypeMap.cs`, `Browse/SecurityMap.cs`, `Browse/AlarmRefBuilder.cs` |
| `IRediscoverable` | `Browse/DeployWatcher.cs`, `Browse/GatewayGalaxyDeployWatchSource.cs` |
| `IReadable` | `Runtime/GalaxyMxSession.cs`, `Runtime/MxValueDecoder.cs`, `Runtime/StatusCodeMap.cs` |
| `IWritable` | `Runtime/GatewayGalaxyDataWriter.cs` (+ `TracedGalaxyDataWriter.cs`), `Runtime/MxValueEncoder.cs` |
| `ISubscribable` | `Runtime/GatewayGalaxySubscriber.cs` (+ `TracedGalaxySubscriber.cs`), `Runtime/EventPump.cs`, `Runtime/SubscriptionRegistry.cs`, `Runtime/ReconnectSupervisor.cs` |
| `IHostConnectivityProbe` | `Health/HostStatusAggregator.cs`, `Health/HostConnectivityForwarder.cs`, `Health/PerPlatformProbeWatcher.cs` |
History reads + alarm condition tracking now live in the server-layer `IHistoryRouter` and `AlarmConditionService` (PR 7.2). Galaxy no longer carries `IHistoryProvider` or `IAlarmSource` of its own.
### DriverConfig JSON shape
Per `src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Config/GalaxyDriverOptions.cs`:
```jsonc
{
"Gateway": {
"Endpoint": "http://localhost:5120",
"ApiKeySecretRef": "secret:galaxy-gw-api-key",
"UseTls": true,
"CaCertificatePath": null,
"ConnectTimeoutSeconds": 10,
"DefaultCallTimeoutSeconds": 30,
"StreamTimeoutSeconds": 0
},
"MxAccess": {
"ClientName": "OtOpcUa",
"PublishingIntervalMs": 1000,
"WriteUserId": 0,
"EventPumpChannelCapacity": 50000
},
"Repository": {
"DiscoverPageSize": 5000,
"WatchDeployEvents": true
},
"Reconnect": {
"InitialBackoffMs": 500,
"MaxBackoffMs": 30000,
"ReplayOnSessionLost": true
}
}
```
`Gateway.ApiKeySecretRef` resolves through the server-side secret store (DPAPI in production, env override in dev) — the API key never appears in cleartext config. `MxAccess.ClientName` MUST be unique per OtOpcUa instance; redundancy pairs enforce uniqueness at install time. `StreamTimeoutSeconds = 0` keeps the `StreamEvents` RPC alive for the lifetime of the driver.
### Performance, tracing, soak
See [Galaxy.Performance.md](Galaxy.Performance.md) for the OpenTelemetry trace map, the per-RPC metric set (`galaxy.events.dropped`, channel headroom, reconnect backoff distribution), and the soak-run profile.
### Parity rig + gateway setup
See [Galaxy.ParityRig.md](Galaxy.ParityRig.md) and the `mxaccessgw` repo for the gateway worker layout and the dev-rig recipe.
---
docs/v2/driver-stability.md
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@@ -174,7 +174,7 @@ Common contract for the proxy in the main server:
Named pipes default to allowing connections from any local user. Without explicit ACLs, any process on the host machine that knows the pipe name could connect, bypass the OPC UA server's authentication and authorization layers, and issue reads, writes, or alarm acknowledgments directly against the driver host. **This is a real privilege-escalation surface** — a service account with no OPC UA permissions could write field values it should never have access to. Every Tier C driver enforces the following:
1. **Pipe ACL**: the host creates the pipe with a `PipeSecurity` ACL that grants `ReadWrite | Synchronize` only to the OtOpcUa server's service principal SID. All other local users — including LocalSystem and Administrators — are explicitly denied. The ACL is set at pipe-creation time so it's atomic with the pipe being listenable.
1. **Pipe ACL**: the host creates the pipe with a `PipeSecurity` ACL that grants `ReadWrite | Synchronize` only to the OtOpcUa server's service principal SID. `LocalSystem` is explicitly denied. The ACL is set at pipe-creation time so it's atomic with the pipe being listenable. Administrators are **not** added to the deny list — UAC's filtered token carries the Admins group SID as deny-only, so a deny ACE on Administrators would fire even for non-elevated callers whose user account happens to be a member (common on dev boxes). The per-connection SID check in §2 remains the authorization boundary.
2. **Caller identity verification**: on each new pipe connection, the host calls `NamedPipeServerStream.GetImpersonationUserName()` (or impersonates and inspects the token) and verifies the connected client's SID matches the configured server service SID. Mismatches are logged and the connection is dropped before any RPC frame is read.
3. **Per-message authorization context**: every RPC frame includes the operation's authenticated OPC UA principal (forwarded by the Core after it has done its own authn/authz). The host treats this as input only — the driver-level authorization (e.g. "is this principal allowed to write Tune attributes?") is performed by the Core, but the host's own audit log records the principal so post-incident attribution is possible.
4. **No anonymous endpoints**: the heartbeat pipe has the same ACL as the data-plane pipe. There are no "open" pipes a generic client can probe.
docs/v2/focas-version-matrix.md
+2 -2
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@@ -6,7 +6,7 @@ enforces at driver init time. Every row cites the Fanuc FOCAS Developer
Kit function whose documented input range determines the ceiling.
**Why this exists** — we have no FOCAS hardware on the bench and no
working simulator. Fwlib32 returns `EW_NUMBER` / `EW_PARAM` when you
working simulator. FWLIB (Fwlib64, or Fwlib32 on legacy deployments) returns `EW_NUMBER` / `EW_PARAM` when you
hand it an address outside the controller's supported range; the
driver would map that to a per-read `BadOutOfRange` at steady state.
Catching at `InitializeAsync` with this matrix surfaces operator
@@ -140,6 +140,6 @@ matrix: Macro variable #50000 is outside the documented range
This validation closes the cheap half of the FOCAS hardware-free
stability gap — config errors now fail at load instead of per-read.
The expensive half is Tier-C process isolation so that a crashing
`Fwlib32.dll` doesn't take the main OPC UA server down with it. See
`Fwlib64.dll` doesn't take the main OPC UA server down with it. See
[`docs/v2/implementation/focas-isolation-plan.md`](implementation/focas-isolation-plan.md)
for that plan (task #220).
docs/v2/implementation/admin-ui-phase-6-status.md
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# Admin UI Phase 6 status audit (2026-04-24)
Audit pass that closes the Phase 6 Admin-UI tasks that were tracked as still-open (#128–#131) but already had their Blazor pages shipped. Every page listed below compiles against the current `OtOpcUaConfigDbContext` schema + the current Admin service surface, has substantive (non-stub) content, and is covered by `ZB.MOM.WW.OtOpcUa.Admin.Tests` (112/112 green).
## Task #128 — /hosts column refresh (Phase 6.1 Stream E.2/E.3)
`Components/Pages/Hosts.razor` — 233 LOC. Route `/hosts`. Ships:
- Per-driver circuit-breaker columns (`ConsecutiveFailures`, `LastCircuitBreakerOpenUtc`).
- Stale-row detection via `HostStatusService.IsStale` (publisher heartbeat ≥ 30 s stale threshold).
- Summary cards: Running / Stale / Faulted / total.
- Auto-refresh every `RefreshIntervalSeconds` driven by the `FleetStatusHub` SignalR feed.
- Health band via `DriverHostState` enum colour coding.
## Task #129 — RoleGrantsTab + AclsTab + Probe (Phase 6.2 Stream D)
- `Components/Pages/RoleGrants.razor` — 192 LOC. Route `/role-grants`. Edits LDAP-group → OPC-UA-role mappings with live reload over `AclChangeNotifier` SignalR.
- `Components/Pages/Clusters/AclsTab.razor` — 279 LOC. NodeAcl CRUD + the **"Probe this permission"** form (task #196 slice 1, embedded at line 38 onward). Binds `_probeGroup` / `_probeNamespaceId` / `_probeUnsAreaId` / `_probeUnsLineId` / `_probeEquipmentId` / `_probeTagId` / `_probePermission` through `PermissionProbeService`.
## Task #130 — RedundancyTab (Phase 6.3 Stream E)
`Components/Pages/Clusters/RedundancyTab.razor` — 175 LOC. Topology table, per-peer reachability (via `FleetStatusHub`), ServiceLevel band + `ApplyLeaseRegistry` / `RecoveryStateManager` state surfaces, failover action button. Live updates over the same SignalR hub `RedundancyPublisherHostedService` ticks.
## Task #131 — Draft / publish / diff / identification (Phase 6.4 Streams A–D)
- `Components/Pages/Clusters/DraftEditor.razor` — 105 LOC. Route `/clusters/{ClusterId}/draft/{GenerationId:long}`. Calls `DraftValidationService` + `GenerationService`.
- `Components/Pages/Clusters/Generations.razor` — 73 LOC. Publish flow (generation state transitions through `sp_PublishGeneration`).
- `Components/Pages/Clusters/DiffViewer.razor` — 87 LOC. Route `/clusters/{ClusterId}/draft/{GenerationId:long}/diff`. Renders `sp_ComputeGenerationDiff` output.
- `Components/Pages/Clusters/IdentificationFields.razor` — 49 LOC. OPC 40010 Identification folder editor bound to the `Equipment` entity.
## What's NOT in this audit
- `#124` — Phase 6.2 3-user interop matrix. Authz layer is now covered by `ThreeUserInteropMatrixTests` in `ZB.MOM.WW.OtOpcUa.Server.Tests` (drives the 5 GLAuth users + admin through `LdapUserAuthenticator` → `AuthorizationGate.IsAllowed` for the role × operation matrix). The wire-level OPC UA-client cross-vendor leg still needs a UserName-token endpoint policy + manual client drill — that part stays a manual deliverable.
- `#119` — Phase 6.3 client interop matrix. Manual Ignition/Kepware/Aveva drills.
- `#113` — OPC UA CTT conformance pass. Manual CTT run.
- `#114` / `#115` — Redundancy cutover + deployment checklist. Manual.
Those remain GA-gating but require a human at a console, not a code change.
docs/v2/implementation/exit-gate-phase-3.md
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# Phase 3 Exit Gate — Driver Fleet (reconstructed retroactively)
> **Status**: **CLOSED (reconstructed 2026-04-23)**. The original plan split the
> driver work across Phases 3 / 4 / 5 (Modbus alone → four PLC drivers → two
> specialty drivers). In execution, all seven non-Galaxy drivers shipped under
> one umbrella against `Core.Abstractions` + `Core`'s generic driver-hosting
> machinery. This doc captures the closure retroactively; no forward work
> remains under these three original phase numbers.
>
> **Plan doc**: none — phases 3/4/5 were intentionally not split out into
> separate plan docs once it was clear the capability-interface contract
> introduced in Phase 1 (`Core.Abstractions` — plan decision #4) was stable
> enough that each driver could land as its own stream rather than as a
> gated mini-phase. See `docs/v2/plan.md` §6 for the now-consolidated
> migration strategy.
## Scope
All seven drivers in the v2 target list (Decision #5) minus Galaxy (closed
separately under Phase 2). The Galaxy Proxy+Host+Shared split exited under
`exit-gate-phase-2-final.md`; this gate does not re-cover it.
## What shipped
### Drivers
| Driver | Project | Capability surface | Test projects |
|---|---|---|---|
| Modbus TCP | `Driver.Modbus` + `Driver.Modbus.Cli` | `IDriver` + `ITagDiscovery` + `IReadable` + `IWritable` + `ISubscribable` + `IHostConnectivityProbe` | `Tests`, `IntegrationTests`, `Cli.Tests` |
| AB CIP | `Driver.AbCip` + `Driver.AbCip.Cli` | all of the above + `IPerCallHostResolver` + `IAlarmSource` | `Tests`, `IntegrationTests`, `Cli.Tests` |
| AB Legacy (PCCC / DF1) | `Driver.AbLegacy` + `Driver.AbLegacy.Cli` | `IDriver` + `IReadable` + `IWritable` + `ITagDiscovery` + `ISubscribable` + `IHostConnectivityProbe` + `IPerCallHostResolver` | `Tests`, `IntegrationTests`, `Cli.Tests` |
| Siemens S7 | `Driver.S7` + `Driver.S7.Cli` | `IDriver` + `ITagDiscovery` + `IReadable` + `IWritable` + `ISubscribable` + `IHostConnectivityProbe` | `Tests`, `IntegrationTests`, `Cli.Tests` |
| Beckhoff TwinCAT (ADS) | `Driver.TwinCAT` + `Driver.TwinCAT.Cli` | `IDriver` + `IReadable` + `IWritable` + `ITagDiscovery` + `ISubscribable` + `IHostConnectivityProbe` + `IPerCallHostResolver` | `Tests`, `IntegrationTests`, `Cli.Tests` |
| FANUC FOCAS | `Driver.FOCAS` + `Driver.FOCAS.Host` + `Driver.FOCAS.Shared` + `Driver.FOCAS.Cli` | `IDriver` + `IReadable` + `IWritable` + `ITagDiscovery` + `ISubscribable` + `IHostConnectivityProbe` + `IPerCallHostResolver`; Tier-C out-of-process backend mirrors the Galaxy Proxy/Host split. `Fwlib64FocasBackend` shipped 2026-04-23 as the production backend (P/Invoke against `Fwlib64.dll`); Host retargeted from net48 x86 to net10.0-windows x64 at the same time. | `Tests`, `Host.Tests`, `Shared.Tests`, `Cli.Tests` |
| OPC UA Client (gateway) | `Driver.OpcUaClient` | `IDriver` + `ITagDiscovery` + `IReadable` + `IWritable` + `ISubscribable` + `IHostConnectivityProbe` + `IAlarmSource` + `IHistoryProvider` (richest surface in the fleet — it's bridging another UA server) | `Tests`, `IntegrationTests` |
### Supporting infrastructure
| PR / Task | Summary |
|---|---|
| #248 | `DriverFactoryRegistry` + `DriverInstanceBootstrapper` — central DB `DriverInstance` rows materialise into live `IDriver` instances at server startup. |
| #210 | Modbus server-side factory + seed SQL (closed first child of umbrella #209). |
| #211 #212 #213 | AB CIP / S7 / AB Legacy server-side factories + seed SQL. |
| #220 (FOCAS) | FOCAS factory wired into the bootstrap pipeline; Tier-C split (`Driver.FOCAS.Host` process launcher, named-pipe IPC, NSSM install scripts, post-mortem MMF) shipped across the five-PR series. |
| (this session) | TwinCAT factory wired in + Server project reference added; all seven driver factories now register uniformly in `Server/Program.cs`. |
| #249 #250 #251 | Per-driver test-client CLI suite (`otopcua-<driver>-cli`) — shared lib + one CLI per driver for direct-to-PLC smoke testing independent of the server. |
| #253 + follow-ups | E2E CLI test scripts (`scripts/e2e/test-<driver>.ps1`) — five-stage bidirectional bridge + subscribe-sees-change assertions per driver, plus `test-all.ps1` matrix runner. |
| (this session) | OPC UA Client e2e script shipped (`test-opcuaclient.ps1`, 8 stages) — the only driver that was missing an e2e script. |
### Docs
Per-driver test-fixture documentation:
- `docs/drivers/Modbus-Test-Fixture.md`
- `docs/drivers/AbServer-Test-Fixture.md` (covers AB CIP fixture)
- `docs/drivers/AbLegacy-Test-Fixture.md`
- `docs/drivers/S7-Test-Fixture.md`
- `docs/drivers/TwinCAT-Test-Fixture.md`
- `docs/drivers/FOCAS-Test-Fixture.md`
- `docs/drivers/OpcUaClient-Test-Fixture.md`
Driver-level ops docs:
- `docs/Driver.Modbus.Cli.md`, `docs/Driver.AbCip.Cli.md`, `docs/Driver.AbLegacy.Cli.md`, `docs/Driver.S7.Cli.md`, `docs/Driver.TwinCAT.Cli.md`, `docs/Driver.FOCAS.Cli.md`
- `docs/v2/driver-specs.md` — unified capability-matrix spec for all eight drivers (Galaxy + seven).
## Compliance evidence
No dedicated `phase-3-compliance.ps1` exists — scope was too broad to fit the
single-script pattern that worked for Phases 6.x and 7. Verification instead
takes the form of the per-driver test suites + e2e scripts:
- [x] **Unit tests** — every driver has a `Tests` project with capability-interface contract tests; `dotnet test tests/ZB.MOM.WW.OtOpcUa.Driver.*.Tests` is green.
- [x] **Integration tests** — `Driver.*.IntegrationTests` stands up Docker-hosted simulators (pymodbus, ab_server, python-snap7, opc-plc) at collection init and exercises real wire-level read/write/subscribe/probe per driver.
- [x] **CLI tests** — `Driver.*.Cli.Tests` covers the per-driver test-client CLIs (#249–#251).
- [x] **E2E scripts** — `scripts/e2e/test-<driver>.ps1` covers the driver-CLI → PLC → OtOpcUa server → OPC UA client round-trip for all seven drivers + Galaxy; `test-all.ps1` aggregates; README status section (rewritten this session) summarises live-boot evidence.
- [x] **Factory registration** — all seven factories plus Galaxy register in `src/ZB.MOM.WW.OtOpcUa.Server/Program.cs` inside the `DriverFactoryRegistry` composition; the `DriverInstanceBootstrapper` can materialise any configured row.
- [x] **Seed SQL** — #210–#213 provide per-driver Config DB seed scripts so a fresh Config DB is populatable without Admin UI interaction.
### Live-boot verification
Recorded across the session-level tracking tasks:
| Driver | Fixture | Stages | Tracking |
|---|---|---|---|
| Modbus | pymodbus (dl205 profile) | 5/5 | #209 exit gate; bidirectional + subscribe-sees-change added in #253 follow-ups |
| AB CIP | `ab_server` ControlLogix | 5/5 | #220 |
| S7 | python-snap7 | 5/5 | #220 |
| AB Legacy | `ab_server` SLC500 / MicroLogix / PLC-5 (requires `/1,0` cip-path for Docker fixture) | 5/5 | #222 partial |
| OPC UA Client | opc-plc Docker fixture | 5/8 (probe, remote read, forward bridge, subscribe, browse) | (this session) |
| TwinCAT | TCBSD VM @ 10.100.0.128 (AmsNetId `41.169.163.43.1.1`) — real TwinCAT runtime under FreeBSD on ESXi; bypasses the Hyper-V/RTIME conflict that blocks XAR on this dev box | features validated | fixture is the TCBSD VM; `TWINCAT_TRUST_WIRE=1` still gates the e2e script by default so unintentional runs against cold fixtures don't false-pass |
| FOCAS | Lab-rig CNC + `Fwlib64.dll` | — | **deferred** — `Fwlib64FocasBackend` shipped 2026-04-23; wire-level live-boot gated `FOCAS_TRUST_WIRE=1`, lab rig tracked under #222 follow-up |
| Galaxy | Live Galaxy + `OtOpcUaGalaxyHost` (this dev box) | 7/7 (read / write / subscribe / alarms / history) | closed under Phase 2 |
## Deferred to post-gate follow-ups
Items intentionally not blocking closure of this umbrella — each is hardware-
dependent and tracked separately:
- [ ] **FOCAS wire-level live-boot** — `test-focas.ps1` against a real CNC once `Fwlib64.dll` is on PATH and `FOCAS_TRUST_WIRE=1` (#222 follow-up). The `Fwlib64FocasBackend` shipped 2026-04-23 — code exists, unit-tests green; only the live-CNC smoke test remains.
- [x] **FOCAS `Fwlib64FocasBackend`** — **CLOSED 2026-04-23**. The production backend in `src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Host/Backend/Fwlib64FocasBackend.cs` wraps `FwlibFocasClient` to fulfil `IFocasBackend` against the licensed `Fwlib64.dll`. Host project retargeted to `net10.0-windows` x64. Default when `OTOPCUA_FOCAS_BACKEND` is unset. 6 new backend tests green. Only wire-level live-boot against real hardware remains — see item above.
- [ ] **OPC UA Client stages 5/7/8** — reverse-bridge, alarm, history stages are opt-in via sidecar NodeId params because opc-plc's default image has no writable nodes and doesn't historize. Against a richer upstream (Prosys, UA Expert sample server) all eight stages can run.
## Completion checklist
- [x] Modbus driver shipped + unit + integration + CLI tests green
- [x] AB CIP driver shipped + tests green + live-boot 5/5
- [x] AB Legacy driver shipped + tests green + live-boot 5/5
- [x] S7 driver shipped + tests green + live-boot 5/5
- [x] TwinCAT driver shipped + tests green + features validated against the TCBSD VM virtual-PLC fixture
- [x] FOCAS driver shipped (Tier-C split) + tests green (wire-live deferred)
- [x] OPC UA Client driver shipped + tests green + live-boot 5/8
- [x] `DriverFactoryRegistry` + `DriverInstanceBootstrapper` shipped
- [x] All seven factories registered in `Server/Program.cs`
- [x] Per-driver test-client CLI suite shipped
- [x] E2E test scripts shipped + `test-all.ps1` aggregator green
- [x] Per-driver test-fixture docs present
- [x] `docs/v2/driver-specs.md` unified capability spec present
- [x] `scripts/e2e/README.md` status section reflects current live-boot matrix
- [x] Exit gate doc checked in (this file)
- [x] TwinCAT validated against the TCBSD VM virtual-PLC fixture — `TWINCAT_TRUST_WIRE=1` + e2e script still gated by default to prevent false-pass against cold fixtures
- [ ] FOCAS lab-rig follow-up filed + tracked (#222)
## Why no compliance script
The Phases 6.1/6.2/6.3/6.4/7 pattern of a single `phase-N-compliance.ps1`
worked because each of those phases touched a narrow slice of server-side
runtime. A "phase-3-compliance.ps1" would have had to boot seven simulators,
configure seven DriverInstance rows, and run seven e2e scripts — which is
exactly what `scripts/e2e/test-all.ps1` already does. The aggregate runner
+ its README is the compliance artefact for this umbrella.
docs/v2/implementation/exit-gate-phase-7.md
+9 -9
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@@ -1,6 +1,6 @@
# Phase 7 Exit Gate — Scripting, Virtual Tags, Scripted Alarms, Historian Sink
> **Status**: Open. Closed when every compliance check passes + every deferred item either ships or is filed as a post-v2-release follow-up.
> **Status**: **FULLY CLOSED** 2026-04-23 audit — the three original follow-ups (#239 / #240 / #241) were all shipped under later branches but this exit-gate doc wasn't updated at the time. All three verified against the repo + tests green.
>
> **Compliance script**: `scripts/compliance/phase-7-compliance.ps1`
> **Plan doc**: `docs/v2/implementation/phase-7-scripting-and-alarming.md`
@@ -45,13 +45,13 @@ Covered by `scripts/compliance/phase-7-compliance.ps1`:
- [x] Walker emits `NodeSourceKind.Virtual` + `NodeSourceKind.ScriptedAlarm` variables
- [x] `DriverNodeManager` dispatch routes Reads by source; Writes to non-Driver rejected with `BadUserAccessDenied` (plan #6)
## Deferred to Post-Gate Follow-ups
## Deferred to Post-Gate Follow-ups (all closed as of 2026-04-23 audit)
Kept out of the capstone so the gate can close cleanly while the less-critical wiring lands in targeted PRs:
Originally kept out of the capstone so the gate could close cleanly. Each landed as a targeted follow-up PR; audit this session verified them against the repo:
- [ ] **SealedBootstrap composition root** (task #239) — instantiate `VirtualTagEngine` + `ScriptedAlarmEngine` + `SqliteStoreAndForwardSink` in `Program.cs`; pass `VirtualTagSource` + `ScriptedAlarmSource` as the new `IReadable` parameters on `DriverNodeManager`. Without this, the engines are dormant in production even though every piece is tested.
- [ ] **Live OPC UA end-to-end smoke** (task #240) — Client.CLI browse + read a virtual tag computed by Roslyn; Client.CLI acknowledge a scripted alarm via the Part 9 method node; historian-disabled deployment returns `BadNotFound` for virtual nodes rather than silent failure.
- [ ] **sp_ComputeGenerationDiff extension** (task #241) — emit Script / VirtualTag / ScriptedAlarm sections alongside the existing Namespace/DriverInstance/Equipment/Tag/NodeAcl rows so the Admin DiffViewer shows Phase 7 changes between generations.
- [x] **SealedBootstrap composition root** (task #239) — **CLOSED**. `src/ZB.MOM.WW.OtOpcUa.Server/Phase7/Phase7Composer.cs` instantiates `VirtualTagEngine` + `ScriptedAlarmEngine` via `Phase7EngineComposer.Compose`, and `SqliteStoreAndForwardSink` in `ResolveHistorianSink` when a registered driver provides `IAlarmHistorianWriter` (today: `GalaxyProxyDriver`). `OpcUaServerService.ExecuteAsync` calls `Phase7Composer.PrepareAsync` then `OpcUaApplicationHost.SetPhase7Sources` **before** `applicationHost.StartAsync` so `OtOpcUaServer` + `DriverNodeManager` capture the `VirtualReadable` / `ScriptedAlarmReadable` at construction. 38 tests green under `tests/ZB.MOM.WW.OtOpcUa.Server.Tests/Phase7/` + `SealedBootstrapIntegrationTests`. The work landed under the label "Phase 7 follow-up #246" and was never re-labelled against #239.
- [x] **Live OPC UA end-to-end smoke** (task #240) — **CLOSED**. `scripts/e2e/test-phase7-virtualtags.ps1` drives a full Client.CLI read of a driver-sourced input, reads the VirtualTag computed off it, triggers a scripted alarm by writing the trigger value, and subscribes to the alarm condition — all through a running OtOpcUa server. Covered in `scripts/e2e/test-all.ps1` + `scripts/e2e/README.md` matrix.
- [x] **sp_ComputeGenerationDiff extension** (task #241) — **CLOSED**. Migration `20260420232000_ExtendComputeGenerationDiffWithPhase7.cs` extends the stored proc to emit Script / VirtualTag / ScriptedAlarm sections alongside the existing NodeAcl / Tag / Equipment / DriverInstance / Namespace output. Admin DiffViewer picks them up through its existing section-plugin architecture (Phase 6.4 Stream C).
## Completion Checklist
@@ -66,9 +66,9 @@ Kept out of the capstone so the gate can close cleanly while the less-critical w
- [x] `phase-7-compliance.ps1` present and passes
- [x] Full solution `dotnet test` passes (no new failures beyond pre-existing tolerated CLI flake)
- [x] Exit-gate doc checked in
- [ ] `SealedBootstrap` composition follow-up filed + tracked
- [ ] Live end-to-end smoke follow-up filed + tracked
- [ ] `sp_ComputeGenerationDiff` extension follow-up filed + tracked
- [x] `SealedBootstrap` composition follow-up shipped (#239 / Phase 7 follow-up #246)
- [x] Live end-to-end smoke follow-up shipped (#240 — `scripts/e2e/test-phase7-virtualtags.ps1`)
- [x] `sp_ComputeGenerationDiff` extension follow-up shipped (#241 — migration `ExtendComputeGenerationDiffWithPhase7`)
## How to run
docs/v2/implementation/focas-isolation-plan.md
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@@ -1,10 +1,21 @@
# FOCAS Tier-C isolation — plan for task #220
> **Status**: PRs A–E shipped. Architecture is in place; the only
> remaining FOCAS work is the hardware-dependent production
> integration of `Fwlib32.dll` into a real `IFocasBackend`
> (`FwlibHostedBackend`), which needs an actual CNC on the bench
> and is tracked as a follow-up on #220.
> **Status**: **FULLY SHIPPED** (code). PRs A–E shipped the architecture; the
> 2026-04-23 follow-up shipped the production `Fwlib64FocasBackend` wrapping
> the licensed `Fwlib64.dll`. Only the wire-level live-boot against real
> hardware remains (task #222 / requires a bench CNC).
>
> **Major update 2026-04-23 — Host retargeted to .NET 10 x64 + Fwlib64**:
> Both `Fwlib32.dll` and `Fwlib64.dll` are licensed for this project. The
> original plan put the Host on .NET 4.8 x86 because Fwlib32 was assumed.
> With Fwlib64 available, the Host moves to `net10.0-windows` x64 — same
> runtime as the rest of the fleet. **Tier-C isolation stays anyway** — the
> blast-radius argument against a closed-source vendor P/Invoke is independent
> of bitness. Galaxy (forced x86 by MXAccess COM) is a pure bitness forcing;
> FOCAS is a pure blast-radius choice. Body of this document still reflects
> the original x86 assumptions in a few places — read them as historical
> design context; the current shape is in `docs/drivers/FOCAS-Test-Fixture.md`
> and `exit-gate-phase-3.md`.
>
> **Pre-reqs shipped**: version matrix + pre-flight validation
> (PR #168 — the cheap half of the hardware-free stability gap).
docs/v2/implementation/focas-wire-protocol.md
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@@ -0,0 +1,290 @@
# FOCAS wire protocol — what's authoritative vs. what's guessed
Written during Stream B on 2026-04-23 after a research pass through `strangesast/fwlib` +
public FOCAS documentation. Purpose: separate what we *know* about the FOCAS
wire protocol (can quote with confidence) from what we're *guessing* (will need
Wireshark traces to validate in Stream C).
This document directly informs `tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/server/`.
## Authoritative — from Fanuc's public `fwlib32.h`
The header file is distributed with the FOCAS Developer Kit and mirrored in OSS
repos (notably `strangesast/fwlib`). The **struct layouts** documented there
are stable across FOCAS versions and authoritative for the payload shapes our
Python mock has to emit.
### ODBM — macro variable read buffer
```c
typedef struct odbm {
short datano; // macro variable number
short dummy; // reserved / alignment padding
long mcr_val; // 32-bit signed macro value
short dec_val; // decimal-point count (0-9)
} ODBM;
```
With `#pragma pack(push, 4)` (the FOCAS default), total size is **10 bytes** on
Windows: 2 + 2 + 4 + 2. Our `FwlibNative.cs` matches this exactly.
Our mock's `_READ_RESP_STRUCT = struct.Struct(">iH")` is **only 6 bytes** —
missing `datano` + `dummy`. A real Fwlib decoding the scaffold response will
read garbage. Stream C fix: prepend two `short` fields.
### IODBPSD — CNC parameter read/write buffer
```c
typedef struct iodbpsd {
short datano; // parameter number
short type; // axis index (0 for non-axis parameters)
union {
char cdata;
short idata;
long ldata;
char cdatas[MAX_AXIS]; // MAX_AXIS varies — 8 on 0i, 32 on 30i
short idatas[MAX_AXIS];
long ldatas[MAX_AXIS];
} u;
} IODBPSD;
```
With `pack(4)` and `MAX_AXIS=8`, total size = 2 + 2 + 32 = **36 bytes**. Our
`FwlibNative.cs` matches this (`[SizeConst = 32]` data buffer).
Our mock's current param handler doesn't return bytes in IODBPSD shape —
response payload is just the raw value. Stream C fix: wrap in 4-byte header
+ union-padded data.
### ODBST — status info
```c
typedef struct odbst {
short dummy; // reserved
short tmmode; // Memory / Tape / MDI / EDIT / DNC
short aut; // automatic mode
short run; // running state
short motion; // motion state
short mstb; // M/S/T/B finish signal
short emergency; // emergency stop
short alarm; // alarm state
short edit; // edit mode sub-state
} ODBST;
```
9 × short = **18 bytes**. Our mock already emits 18 bytes via
`struct.Struct(">9h")`. ✓ correct.
### IODBPMC — PMC range read/write buffer
```c
typedef struct iodbpmc {
short type_a; // PMC address letter encoded as ADR_* numeric code
short type_d; // data type: 0=byte, 1=word, 2=long, 4=float, 5=double
unsigned short datano_s; // start address number
unsigned short datano_e; // end address number
union {
char cdata[5];
short idata[5];
long ldata[5];
float fdata[5];
double dbdata[5];
} u; // 40-byte union (widest = dbdata = 5×8 bytes)
} IODBPMC;
```
With `pack(4)` the union is 40 bytes; struct total = 8 + 40 = **48 bytes**.
Our `FwlibNative.cs` matches this.
Our mock's PMC handler takes a different layout (uint16 handle + uint8 letter
+ ...). Stream C fix: rewrite to IODBPMC shape.
## Reference trace findings (2026-04-23 dev-box reversing)
**Good news** — we don't need a bench CNC for first-pass reversing. Loading
`Fwlib64.dll` in `otopcua-focas-cli` + pointing it at our Python simulator on
`127.0.0.1:8193` + enabling `OTOPCUA_FOCAS_RAW_CAPTURE=1` on the sim lets us
observe Fwlib's outbound bytes + iterate on reply shapes. Each cycle is ~5s;
progress measure is "Fwlib sends more bytes before disconnecting".
### Confirmed wire facts
**Magic prefix** — every frame Fwlib sends begins with `0xA0 0xA0 0xA0 0xA0`
(4 bytes). This is NOT a length prefix — our scaffold tried to decode it as
uint32-big-endian = 2.7 GB and died. It's a fixed protocol marker.
**Handshake request** — `cnc_allclibhndl3` produces this 8-byte frame:
```
a0 a0 a0 a0 00 01 01 01
└─ magic ─┘ └── negotiation ──┘
```
The 4-byte negotiation field is stable across our observations (always
`00 01 01 01`). Interpretation TBD — possibly `(version_major=0x0001,
version_minor=0x0101)` or `(protocol=0x01, subtype=0x010101)`.
**Handshake reply that Fwlib accepts** (empirically confirmed — doesn't
disconnect):
```
a0 a0 a0 a0 00 01 01 01 00 XX 00 YY
└─ magic ─┘ └── echo ──┘ handle api_version
```
12 bytes: magic + echoed negotiation + 2-byte handle + 2-byte api_version code.
### Post-handshake frame shape — decoded via drain mode
The simulator's `OTOPCUA_FOCAS_DRAIN_AFTER_HANDSHAKE=1` mode reads all inbound
bytes for 1000 ms after the handshake reply without attempting any decode.
Captured payload from `cnc_allclibhndl3`:
```
00 02 00 02 a0 a0 a0 a0 00 01 21 01 00 00
└── prefix ─┘ └── magic ─┘ └─── body ────┘
4 bytes 4 bytes 6 bytes (total = 14 bytes)
```
**Key discovery**: post-handshake frames have a **4-byte prefix BEFORE the
magic**, not magic-first. Frame shape:
```
uint16 msg_counter // starts at 2; handshake was #1 implicitly
uint16 handle_echo // matches the handle our open reply returned
4 bytes FOCAS_MAGIC // 0xA0A0A0A0
N bytes body // function-specific
```
Session 1's drain captured only the prefix (`00 02 00 01`) before timing
out — TCP multiplexed the two test sessions's bytes differently. Session 2
caught the full 14-byte frame.
### Body bytes — first post-handshake request
Body on `cnc_allclibhndl3` first post-handshake frame:
```
00 01 21 01 00 00
```
Informed guesses (unvalidated):
- `00 01` = body length (1 useful byte?) or sub-request count
- `21 01` = function code / operation tag — `0x21` is seen in public FOCAS
reverse-engineering notes associated with "system info" / "controller
identification" queries
- `00 00` = padding / reserved
Likely this is Fwlib's "tell me what CNC you are" query — part of
`cnc_allclibhndl3`'s internal handshake continuation before the handle is
fully established. Returning an empty or malformed response causes Fwlib
to declare the far end "not a CNC" and error with `EW_FUNC` (16).
### Iteration 3 — echo response, error-code advances
Sending back `<prefix><magic><echoed body>` (14 bytes matching request shape)
advances Fwlib's client-side error code from **`EW_-16` (socket-level)** to
**`EW_-17` (protocol-level rejection)**. Fwlib reads our response in full
before disconnecting with `peer closed mid-frame`.
Meaning: our **frame structure is correct enough** that Fwlib parses it as a
valid FOCAS frame; the **body content** (the 6 bytes after magic) is where
the semantic mismatch now lives. Fwlib expects specific bytes back for the
`0x2101` system-info query and an echo doesn't match.
### Current iteration block
Going deeper without reference requires either:
- **A bench CNC** (#54) to capture a real response to the `0x2101` query.
Stream C.2 Wireshark trace gives us the exact byte pattern Fwlib expects.
- **Published FOCAS response specs** for sub-function `0x2101` — not present
in `strangesast/fwlib` headers; likely only in the licensed Developer Kit
binary docs.
- **Blind enumeration** — try N variations of the 6-byte body response until
Fwlib's error code changes again. High cost, low signal.
The first two are both blocked on resources we don't have. The third is
~hundreds of cycles with no guarantee of convergence.
### Diminishing-returns checkpoint
**What we've proven without hardware**:
1. Magic prefix `0xA0A0A0A0` confirmed
2. Handshake request format decoded (`magic + 4-byte negotiation`)
3. Handshake response format that Fwlib accepts (`magic + echo + handle + api`)
4. Post-handshake frame format decoded (`prefix + magic + body`)
5. First post-handshake function code observed (`0x2101` — likely system-info)
6. Error code progression `EW_SOCKET` → `EW_PROTOCOL` confirms our framing is
structurally correct
**What we can't prove without bench CNC or reference docs**:
1. The exact 6-byte response body Fwlib expects for `0x2101`
2. The full list of post-handshake function codes + their body shapes
3. Whether subsequent frames use length prefixes or fixed body sizes
**Recommendation**: checkpoint here. The framing discoveries above are
preserved in `server/frames.py` + `server/state.py` + `server/focas_server.py`
+ `server/handlers/__init__.py`. When bench-CNC access unblocks Stream C.2's
reference trace, the iteration loop (with the framing work already done)
should converge in hours rather than days.
### Still unknown
- **Response shape** for the post-handshake body request — we can frame the
prefix + magic correctly now, but what the 6-byte body response should
carry (CNC series ID? version? capability flags?) needs further iteration.
- **Function-id numeric values** for the 9 FWLIB calls our driver makes —
one per call, need to be observed separately.
- **Error encoding** on the wire.
### Next iteration cycles
With the handshake working, each subsequent function gets its own probe-and-observe
loop. The simulator now has a `RAW_FRAME_MARKER = 0xFFFF` sentinel that lets a
handler return exact wire bytes (bypassing the scaffold envelope) — use that to
try different post-handshake replies and watch Fwlib's reaction.
## Stream C work order
Given what's authoritative vs. guessed, here's the most efficient path:
### Phase 1 — payload shapes (no hardware required)
- [ ] Rewrite `server/handlers/macro.py` response to return 10-byte ODBM:
`short datano, short dummy, int32 mcr_val, short dec_val`
- [ ] Rewrite `server/handlers/param.py` response to return 36-byte IODBPSD:
`short datano, short type, bytes[32] u`
- [ ] Rewrite `server/handlers/pmc.py` response to return 48-byte IODBPMC:
`short type_a, short type_d, uint16 datano_s, uint16 datano_e, bytes[40] u`
- [ ] Add unit tests asserting byte-exact sizes
- [ ] Update validate_harness.py to match the new shapes
Effect: when Stream C gets its first Wireshark trace, the payload-layer of the
mock is already correct. Only the framing layer needs iteration.
### Phase 2 — framing (requires hardware)
This is the iterative Wireshark loop — no point starting until the Windows rig
+ licensed Fwlib64.dll + real CNC are all available. See the implementer's
checklist in
[`tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/README.md`](../../../tests/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/README.md).
### Phase 3 — flip the C# test gate
Once Phase 2 proves Fwlib64 can talk to the mock:
- [ ] Flip `OTOPCUA_FOCAS_SIM_WIRE_COMPAT=1` in the CI env
- [ ] Expand `tests/.../IntegrationTests/Series/WireCompatGatedTests.cs` with
real per-series assertions
- [ ] Update `scripts/e2e/test-focas.ps1` to accept `-ProfileName`
- [ ] Close Stream D
## References
- [`src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FwlibNative.cs`](../../../src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FwlibNative.cs) — P/Invoke surface, authoritative struct layouts
- [`src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FwlibFocasClient.cs`](../../../src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FwlibFocasClient.cs) — reference C# implementation of each FWLIB call
- [`src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasStatusMapper.cs`](../../../src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FocasStatusMapper.cs) — EW_* → OPC UA status mapping
- Fanuc FOCAS Developer Kit (licensed, not in repo) — ultimate source of truth
- `strangesast/fwlib` on GitHub — redistributes `fwlib32.h` + runtime binaries; no wire protocol docs
docs/v2/implementation/phase-2-galaxy-out-of-process.md
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@@ -1,3 +1,14 @@
> **✅ Completed 2026-04-30 — historical record of Phase 2 (Galaxy out-of-process split).**
>
> Phase 2 produced the `Galaxy.Host` / `Galaxy.Proxy` / `Galaxy.Shared`
> three-project split as a stepping stone toward the eventual mxaccessgw
> architecture. Those projects shipped, served their purpose for
> roughly a year, then retired in PR 7.2 alongside the
> `OtOpcUaGalaxyHost` Windows service. This file is preserved as the
> phase-exit evidence; do not treat it as live architecture
> documentation. See `docs/drivers/Galaxy.md` for the current
> in-process driver.
# Phase 2 — Galaxy Out-of-Process Refactor (Tier C)
> **Status**: DRAFT — implementation plan for Phase 2 of the v2 build (`plan.md` §6, `driver-stability.md` §"Galaxy — Deep Dive").
@@ -172,7 +183,7 @@ Lift the existing `GalaxyRuntimeProbeManager` into the new project. Behaviors pe
#### Task B.6 — Named-pipe IPC server with mandatory ACL
Per decision #76 + `driver-stability.md` §"IPC Security":
- Pipe ACL on creation: `ReadWrite | Synchronize` granted only to the OtOpcUa server's service principal SID; LocalSystem and Administrators **explicitly denied**
- Pipe ACL on creation: `ReadWrite | Synchronize` granted only to the OtOpcUa server's service principal SID; LocalSystem **explicitly denied**. Administrators was dropped from the deny list so non-elevated admins on dev boxes aren't blocked via UAC-filtered-token deny-only semantics — the per-connection SID check (§2 of driver-stability.md) remains the real authorization boundary.
- Caller identity verification on each new connection: `GetImpersonationUserName()` cross-checked against configured server service SID; mismatches dropped before any RPC frame is read
- Per-process shared secret: passed by the supervisor at spawn time, required on first frame of every connection
- Heartbeat pipe: separate from data-plane pipe, same ACL
docs/v2/implementation/phase-6-1-resilience-and-observability.md
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@@ -1,6 +1,8 @@
# Phase 6.1 — Resilience & Observability Runtime
> **Status**: **SHIPPED** 2026-04-19 — Streams A/B/C/D + E data layer merged to `v2` across PRs #78-82. Final exit-gate PR #83 turns the compliance script into real checks (all pass) and records this status update. One deferred piece: Stream E.2/E.3 SignalR hub + Blazor `/hosts` column refresh lands in a visual-compliance follow-up PR on the Phase 6.4 Admin UI branch.
> **Status**: **SHIPPED** 2026-04-19 — Streams A/B/C/D + E data layer merged to `v2` across PRs #78-82. Final exit-gate PR #83 turns the compliance script into real checks (all pass) and records this status update.
>
> **Stream E.2/E.3 closed 2026-04-23** — `FleetStatusPoller` now polls `DriverInstanceResilienceStatus`, detects per-`(DriverInstanceId, HostName)` deltas, and pushes `ResilienceStatusChangedMessage` via `FleetStatusHub` on the fleet group. Admin `/hosts` page subscribes on load and upserts the matching `HostStatusRow` in-memory on receipt, so operator-visible resilience state now reflects the runtime within one poller tick (~5 s) instead of the Admin page's own 10-second refresh. `FleetStatusPollerTests.Poller_pushes_ResilienceStatusChanged_on_delta` covers the first-observation push, the no-delta-no-push invariant, and the mutated-row re-push.
>
> Baseline: 906 solution tests → post-Phase-6.1: 1042 passing (+136 net). One pre-existing Client.CLI Subscribe flake unchanged.
>
@@ -129,7 +131,7 @@ Closes these gaps flagged in the 2026-04-19 audit:
- [ ] Stream B: Tier registry + generalised watchdog + scheduled recycle + wedge detector
- [ ] Stream C: `/healthz` + `/readyz` + structured logging + JSON Serilog sink
- [ ] Stream D: LiteDB cache + Polly fallback in Configuration
- [ ] Stream E: Admin `/hosts` page refresh
- [x] Stream E: Admin `/hosts` page refresh (E.1 in PRs #78-82 with the data layer; E.2/E.3 closed 2026-04-23)
- [ ] Cross-cutting: `phase-6-1-compliance.ps1` exits 0; full solution `dotnet test` passes; exit-gate doc recorded
## Adversarial Review — 2026-04-19 (Codex, thread `019da489-e317-7aa1-ab1f-6335e0be2447`)
docs/v2/implementation/phase-6-2-authorization-runtime.md
+3 -4
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@@ -1,10 +1,9 @@
# Phase 6.2 — Authorization Runtime (ACL + LDAP grants)
> **Status**: **SHIPPED (core)** 2026-04-19 — Streams A, B, C (foundation), D (data layer) merged to `v2` across PRs #84-87. Final exit-gate PR #88 turns the compliance stub into real checks (all pass, 2 deferred surfaces tracked).
> **Status**: **FULLY SHIPPED** (updated 2026-04-23 audit). Streams A-D core merged to `v2` across PRs #84-87 + exit-gate PR #88 on 2026-04-19; both named deferrals landed separately and were confirmed against the repo this session:
>
> Deferred follow-ups (tracked separately):
> - Stream C dispatch wiring on the 11 OPC UA operation surfaces (task #143).
> - Stream D Admin UI — RoleGrantsTab, AclsTab Probe-this-permission, SignalR invalidation, draft-diff ACL section + visual-compliance reviewer signoff (task #144).
> - **Task #143 Stream C dispatch wiring** — `DriverNodeManager` calls `AuthorizationGate.IsAllowed(context.UserIdentity, OpcUaOperation.<Op>, scope)` on Read (line 249), Write (line 536) with per-classification `OpcUaOperation.WriteOperate` / `WriteTune` / `WriteConfigure` routed via `WriteAuthzPolicy`, and HistoryRead (4 call sites). `TriePermissionEvaluator` + `PermissionTrieCache` back the gate.
> - **Task #144 Stream D Admin UI** — `RoleGrants.razor` (LDAP group → Admin role mapping) + `AclsTab.razor` (per-cluster node-ACL editor with a probe-this-permission surface via `PermissionProbeService`) + `AclChangeNotifier` SignalR hub for cache invalidation all present and wired.
>
> Baseline pre-Phase-6.2: 1042 solution tests → post-Phase-6.2 core: 1097 passing (+55 net). One pre-existing Client.CLI Subscribe flake unchanged.
>
docs/v2/implementation/phase-6-3-redundancy-runtime.md
+14 -7
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@@ -1,13 +1,20 @@
# Phase 6.3 — Redundancy Runtime
> **Status**: **SHIPPED (core)** 2026-04-19 — Streams B (ServiceLevelCalculator + RecoveryStateManager) and D core (ApplyLeaseRegistry) merged to `v2` in PR #89. Exit gate in PR #90.
> **Status**: **SHIPPED (core + Stream C)** — original body merged 2026-04-19; audit 2026-04-23 promoted **Stream C (task #147)** into shipped state.
>
> Deferred follow-ups (tracked separately):
> - Stream A — RedundancyCoordinator cluster-topology loader (task #145).
> - Stream C — OPC UA node wiring: ServiceLevel + ServerUriArray + RedundancySupport (task #147).
> - Stream E — Admin UI RedundancyTab + OpenTelemetry metrics + SignalR (task #149).
> - Stream F — client interop matrix + Galaxy MXAccess failover test (task #150).
> - sp_PublishGeneration pre-publish validator rejecting unsupported RedundancyMode values (task #148 part 2 — SQL-side).
> **In** (verified in repo):
> - Stream A — `ClusterTopologyLoader`, `RedundancyCoordinator`, `RedundancyTopology`, `PeerReachability` all present under `src/ZB.MOM.WW.OtOpcUa.Server/Redundancy/`. Coordinator is now also hosted by `Program.cs` via the new `RedundancyPublisherHostedService`, which calls `RefreshAsync` on startup.
> - Stream B — `ServiceLevelCalculator` + `RecoveryStateManager`.
> - **Stream C (task #147) — OPC UA node wiring**. `ServerRedundancyNodeWriter` maintains `Server.ServiceLevel` (i=2267), `Server.ServerRedundancy.RedundancySupport` (i=2994), and `Server.ServerRedundancy.ServerUriArray` (non-transparent subtype) by writing the `PropertyState.Value` + calling `ClearChangeMasks`. `RedundancyPublisherHostedService` drives the publisher on a 1 s tick and fans `OnStateChanged` / `OnServerUriArrayChanged` into the writer. Mapping of `Configuration.RedundancyMode` → Part 4 `RedundancySupport` is Warm/Hot/None (v2 clusters don't enumerate Cold / HotAndMirrored per decision #85). Idempotent per-value dedupe prevents spurious OPC UA notifications. Unit coverage: `ServerRedundancyNodeWriterTests` (4 tests, green).
> - Stream D — `ApplyLeaseRegistry`.
> - Stream E — `RedundancyTab.razor` with SignalR `RoleChanged` wiring (via `FleetStatusPoller` + `FleetStatusHub`) — stale-flag + role-swap banner.
>
> **Closed this session (2026-04-23)**:
> - **Task #148 part 2** — `DraftValidator.ValidateClusterTopology(cluster, nodes)` now catches three pre-publish invariants the SQL CHECK can't see: (a) unsupported `NodeCount`/`RedundancyMode` pairs; (b) `Enabled`-node count vs. declared `NodeCount` mismatch (catches disabled-node drift with mode still Hot/Warm); (c) multiple-Primary per decision #84. Returns every failure in one pass — same shape as `Validate`. 8 new tests in `DraftValidatorTests` green.
> - **Task #150 Stream F** — `docs/v2/redundancy-interop-playbook.md` captures the manual validation matrix against UaExpert + Kepware + AVEVA MXAccess failover. Automating these closed-source GUI clients in PR-CI is out of scope; the automatable half is already covered by `ServiceLevelCalculatorTests` / `RedundancyStatePublisherTests` / `ClusterTopologyLoaderTests` / `ServerRedundancyNodeWriterTests`.
>
> **Remaining (documented limitation, not blocking v2.0)**:
> - Non-transparent redundancy-state node upgrade — the SDK's default `Server.ServerRedundancy` object is the base `ServerRedundancyState`, so `ApplyServerUriArray` currently logs-and-skips. Operators on the rare deployment that needs `ServerUriArray` read-back get a clear warning with the upgrade path. Documented in the interop playbook's "Known limitations" section.
>
> Baseline pre-Phase-6.3: 1097 solution tests → post-Phase-6.3 core: 1137 passing (+40 net).
>
docs/v2/implementation/phase-6-4-admin-ui-completion.md
+11 -6
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@@ -1,12 +1,17 @@
# Phase 6.4 — Admin UI Completion
> **Status**: **SHIPPED (data layer)** 2026-04-19 — Stream A.2 (UnsImpactAnalyzer + DraftRevisionToken) and Stream B.1 (EquipmentCsvImporter parser) merged to `v2` in PR #91. Exit gate in PR #92.
> **Status**: **SHIPPED (mostly)** 2026-04-19; audit 2026-04-23 confirms what landed separately after the data-layer PR #91:
>
> Deferred follow-ups (Blazor UI + staging tables + address-space wiring):
> - Stream A UI — UnsTab MudBlazor drag/drop + 409 concurrent-edit modal + Playwright smoke (task #153).
> - Stream B follow-up — EquipmentImportBatch staging + FinaliseImportBatch transaction + CSV import UI (task #155).
> - Stream C — DiffViewer refactor into base + 6 section plugins + 1000-row cap + SignalR paging (task #156).
> - Stream D — IdentificationFields.razor + DriverNodeManager OPC 40010 sub-folder exposure (task #157).
> **In** (verified in repo):
> - **Task #153 Stream A UI** — `UnsTab.razor` with drag/drop handlers + concurrent-edit via `DraftRevisionToken` + `UnsImpactAnalyzer`; Playwright smoke test in `tests/ZB.MOM.WW.OtOpcUa.Admin.E2ETests/UnsTabDragDropE2ETests.cs`.
> - **Task #155 Stream B** — `EquipmentImportBatch` entity + migration, `EquipmentImportBatchService.CreateBatchAsync` / `FinaliseBatchAsync` / `DropBatchAsync` / `ListByUserAsync`, `ImportEquipment.razor` UI.
> - **Task #156 Stream C** — `DiffViewer.razor` + `DiffSection.razor` refactor in place.
> - Admin UI `IdentificationFields.razor` surface shipped (part of #157).
>
> **Closed this session (2026-04-23)**:
> - **Task #157 Stream D server-side half** was a stale audit claim. `src/ZB.MOM.WW.OtOpcUa.Core/OpcUa/IdentificationFolderBuilder.cs` ships the OPC 40010 Identification sub-folder materializer (Manufacturer / Model / SerialNumber / HardwareRevision / SoftwareRevision / YearOfConstruction / AssetLocation / ManufacturerUri / DeviceManualUri); `EquipmentNodeWalker.Walk` calls it per equipment; `IdentificationFolderBuilderTests` (158 lines) + two walker-level tests (`Walk_Materializes_Identification_Subfolder_When_AnyFieldPresent`, `Walk_Omits_Identification_Subfolder_When_AllFieldsNull`) cover the null-handling branches. The initial audit grepped only `src/ZB.MOM.WW.OtOpcUa.Server/OpcUa/`; the builder lives in `Core/OpcUa/`.
>
> **Phase 6.4 is now FULLY SHIPPED — no deferred surfaces remain.**
>
> Baseline pre-Phase-6.4: 1137 solution tests → post-Phase-6.4 data layer: 1159 passing (+22).
>
docs/v2/implementation/phase-7-e2e-smoke.md
+111 -14
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@@ -14,7 +14,7 @@ End-to-end validation that the Phase 7 production wiring chain (#243 / #244 / #2
| SQL Server reachable, `OtOpcUaConfig` DB exists with all migrations applied | `sqlcmd -S "localhost,14330" -d OtOpcUaConfig -U sa -P "..." -Q "SELECT COUNT(*) FROM dbo.__EFMigrationsHistory"` returns ≥ 11 |
| Server's `appsettings.json` `Node:ConfigDbConnectionString` matches your SQL Server | `cat src/ZB.MOM.WW.OtOpcUa.Server/appsettings.json` |
> **Galaxy.Host pipe ACL.** Per `docs/ServiceHosting.md`, the pipe ACL deliberately denies `BUILTIN\Administrators`. **Run the Server in a non-elevated shell** so its principal matches `OTOPCUA_ALLOWED_SID` (typically the same user that runs `OtOpcUaGalaxyHost` — `dohertj2` on the dev box).
> **Galaxy.Host pipe ACL.** The pipe allows the configured `OTOPCUA_ALLOWED_SID` (typically the user that runs `OtOpcUaGalaxyHost` — `dohertj2` on the dev box). Run the Server under the same user; elevation doesn't matter — `PipeAcl.cs` no longer denies `BUILTIN\Administrators` since UAC's deny-only Admins SID would have blocked non-elevated dev-box admins too.
## Setup
@@ -36,11 +36,49 @@ sqlcmd -S "localhost,14330" -d OtOpcUaConfig -U sa -P "OtOpcUaDev_2026!" `
Expected output ends with `Phase 7 smoke seed complete.` plus a Cluster / Node / Generation summary. Idempotent — re-running wipes the prior smoke state and starts clean.
The seed creates one each of: `ServerCluster`, `ClusterNode`, `ConfigGeneration` (Published), `Namespace`, `UnsArea`, `UnsLine`, `Equipment`, `DriverInstance` (Galaxy proxy), `Tag`, two `Script` rows, one `VirtualTag` (`Doubled` = `Source × 2`), one `ScriptedAlarm` (`OverTemp` when `Source > 50`).
The seed creates one each of: `ServerCluster`, `ClusterNode`, `ClusterNodeCredential` (binds the SQL login to the node — without this `sp_GetCurrentGenerationForCluster` returns `Unauthorized: caller X is not bound to NodeId p7-smoke-node`), `ConfigGeneration` (Published), `Namespace`, `UnsArea`, `UnsLine`, `Equipment`, `DriverInstance` (Galaxy proxy), `Tag`, two `Script` rows, one `VirtualTag` (`MachineStatus` = `Source > 0`, Boolean, historized), one `ScriptedAlarm` (`OverTemp` when `Source > 50`).
### 3. Replace the Galaxy attribute placeholder
### 3. (Optional) Swap the Galaxy attribute
`scripts/smoke/seed-phase-7-smoke.sql` inserts a `dbo.Tag.TagConfig` JSON with `FullName = "REPLACE_WITH_REAL_GALAXY_ATTRIBUTE"`. Edit the SQL + re-run, or `UPDATE dbo.Tag SET TagConfig = N'{"FullName":"YourReal.GalaxyAttr","DataType":"Float64"}' WHERE TagId='p7-smoke-tag-source'`. Pick an attribute that exists on the running Galaxy + has a numeric value the script can multiply.
The shipped seed points `dbo.Tag.TagConfig` at `TestMachine_001.TestHistoryValue` — the dev-box Galaxy ships it as Int32, writable (`security_classification = Operate`), and historized (`HistoryExtension` primitive), so every E2E stage has a real live target. To swap to another attribute on a different Galaxy, pick a candidate via the same shape:
```sql
-- Run against the Galaxy Repository DB (ZB).
;WITH dpc AS (
SELECT g.gobject_id, p.package_id, p.derived_from_package_id, 0 AS depth
FROM gobject g INNER JOIN package p ON p.package_id = g.deployed_package_id
WHERE g.is_template = 0 AND g.deployed_package_id <> 0
UNION ALL
SELECT c.gobject_id, p.package_id, p.derived_from_package_id, c.depth + 1
FROM dpc c INNER JOIN package p ON p.package_id = c.derived_from_package_id
WHERE c.derived_from_package_id <> 0 AND c.depth < 10
)
SELECT DISTINCT g.tag_name + '.' + da.attribute_name AS full_ref,
dt.description AS dtype, da.security_classification
FROM dpc
INNER JOIN dynamic_attribute da ON da.package_id = dpc.package_id
INNER JOIN gobject g ON g.gobject_id = dpc.gobject_id
LEFT JOIN data_type dt ON dt.mx_data_type = da.mx_data_type
WHERE da.attribute_name NOT LIKE '[_]%'
AND da.attribute_name NOT LIKE '%.Description'
AND da.mx_data_type IN (1, 2, 3, 4)
AND da.security_classification > 0 -- writable
AND EXISTS (
SELECT 1 FROM primitive_instance pi
INNER JOIN primitive_definition pd
ON pd.primitive_definition_id = pi.primitive_definition_id
AND pd.primitive_name = 'HistoryExtension'
WHERE pi.package_id = dpc.package_id AND pi.primitive_name = da.attribute_name)
ORDER BY full_ref;
```
Then update the seed:
```sql
UPDATE dbo.Tag
SET TagConfig = N'{"FullName":"YourReal.GalaxyAttr","DataType":"Int32"}'
WHERE TagId = 'p7-smoke-tag-source';
```
### 4. Point Server.appsettings at the smoke node
@@ -54,9 +92,38 @@ The seed creates one each of: `ServerCluster`, `ClusterNode`, `ConfigGeneration`
}
```
### 4a. (Optional) Enable LDAP + SecurityProfile for the write stage
Anonymous OPC UA sessions are denied writes against `Operate`-classified tags by the PR 26 server-layer classification gate. To exercise the reverse-bridge + alarm-fires stages fully, the Server has to advertise a `UserName` UserTokenPolicy (any profile other than `None`) and authenticate against LDAP.
```json
{
"OpcUa": {
"SecurityProfile": "Basic256Sha256-Sign",
"Ldap": {
"Enabled": true,
"Server": "localhost",
"Port": 3893,
"SearchBase": "dc=lmxopcua,dc=local",
"ServiceAccountDn": "cn=serviceaccount,dc=lmxopcua,dc=local",
"ServiceAccountPassword": "serviceaccount123",
"GroupToRole": {
"ReadOnly": "ReadOnly",
"WriteOperate": "WriteOperate",
"WriteTune": "WriteTune",
"WriteConfigure": "WriteConfigure",
"AlarmAck": "AlarmAck"
}
}
}
}
```
Dev-box GLAuth ships `writeop` / `writeop123` in the `WriteOperate` group, `admin` / `admin123` across all write groups. See `C:\publish\glauth\auth.md`.
## Run
### 5. Start the Server (non-elevated shell)
### 5. Start the Server
```powershell
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Server
@@ -82,27 +149,39 @@ Any line missing = follow up the failure surface (each step has its own log sign
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- browse -u opc.tcp://localhost:4840/OtOpcUa -r -d 5
```
Expect to see under the namespace root: `lab-floor → galaxy-line → reactor-1` with three child variables: `Source` (driver-sourced), `Doubled` (virtual tag, value should track Source×2), and `OverTemp` (scripted alarm, boolean reflecting whether Source > 50).
Expect to see under the namespace root: `lab-floor → galaxy-line → reactor-1` with three child variables: `Source` (driver-sourced Int32), `MachineStatus` (virtual tag Boolean, `Source > 0`), and `OverTemp` (scripted alarm Boolean, `Source > 50`). NodeIds are path-based per OPC UA Part 3 §5.2.2 — the walker mints them from `{driverId}/{folder-path}/{browseName}` and stores the driver-side FullReference in an internal NodeId→FullRef map, so client subscriptions survive backend address renames.
#### Read the virtual tag
```powershell
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- read -u opc.tcp://localhost:4840/OtOpcUa -n "ns=2;s=p7-smoke-vt-derived"
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- read `
-u opc.tcp://localhost:4840/OtOpcUa `
-n "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/MachineStatus"
```
Expected: a `Float64` value approximately equal to `2 × Source`. Push a value change in Galaxy + re-read — the virtual tag should follow within the bridge's publishing interval (1 second by default).
Expected: `Boolean`. Push a value change into the Source Galaxy attribute and re-read — `MachineStatus` should follow within the bridge's publishing interval (1 second by default).
#### Read the scripted alarm
```powershell
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- read -u opc.tcp://localhost:4840/OtOpcUa -n "ns=2;s=p7-smoke-al-overtemp"
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- read `
-u opc.tcp://localhost:4840/OtOpcUa `
-n "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/OverTemp"
```
Expected: `Boolean` — `false` when Source ≤ 50, `true` when Source > 50.
#### Drive the alarm + verify historian queue
In Galaxy, push a Source value above 50. Within ~1 second, `OverTemp.Read` flips to `true`. The alarm engine emits a transition to `Phase7EngineComposer.RouteToHistorianAsync` → `SqliteStoreAndForwardSink.EnqueueAsync` → drain worker (every 2s) → `GalaxyHistorianWriter.WriteBatchAsync` → Galaxy.Host pipe → Aveva Historian alarm schema.
Push a Source value above 50 — either from Galaxy itself, or via the Server's OPC UA write path using LDAP credentials (step 4a). Within ~1 second, `OverTemp.Read` flips to `true`. The alarm engine emits a transition to `Phase7EngineComposer.RouteToHistorianAsync` → `SqliteStoreAndForwardSink.EnqueueAsync` → drain worker (every 2s) → `GalaxyHistorianWriter.WriteBatchAsync` → Galaxy.Host pipe → Aveva Historian alarm schema.
```powershell
# OPC UA write path — requires LDAP from step 4a + a writeop-class user.
dotnet run --project src/ZB.MOM.WW.OtOpcUa.Client.CLI -- write `
-u opc.tcp://localhost:4840/OtOpcUa -S sign `
-n "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/Source" `
-v 75 -U writeop -P writeop123
```
Verify the queue absorbed the event:
@@ -120,14 +199,32 @@ Open the Historian Client (or InTouch alarm summary) — the `OverTemp` activati
- [ ] EF migrations applied through `20260420232000_ExtendComputeGenerationDiffWithPhase7`
- [ ] Smoke seed completes without errors + creates exactly 1 Published generation
- [ ] Server starts in non-elevated shell + logs the Phase 7 composition lines
- [ ] Client.CLI browse shows the UNS tree with Source / Doubled / OverTemp under reactor-1
- [ ] Read on `Doubled` returns `2 × Source` value
- [ ] Server starts + logs the Phase 7 composition lines
- [ ] Client.CLI browse shows the UNS tree with Source / MachineStatus / OverTemp under reactor-1
- [ ] Read on `Source` returns a Good-quality Int32 value (proves MXAccess round-trip)
- [ ] Read on `MachineStatus` returns the live boolean truth of `Source > 0`
- [ ] Read on `OverTemp` returns the live boolean truth of `Source > 50`
- [ ] Pushing Source past 50 in Galaxy flips `OverTemp` to `true` within 1 s
- [ ] `test-galaxy.ps1 -Username writeop -Password writeop123` drives Source past 50 and flips `OverTemp` to `true` within 1 s
- [ ] SQLite queue drains (`COUNT(*)` returns to 0 within 2 s of an alarm transition)
- [ ] Historian shows the `OverTemp` activation event with the rendered message
## Second-run evidence (2026-04-24 dev box)
Full live stack ran end-to-end once the IPC unblocks (commit `d11dd05`), path-based NodeIds (commit `8be82e0`), cold-start engine guards (commit `69e1d32`), and seed retarget to `TestMachine_001.TestHistoryValue` (commit `ec1a590`) landed. Anonymous `scripts/e2e/test-galaxy.ps1` run reaches 3/7:
```
[PASS] source NodeId readable (Galaxy pipe → proxy → server → client chain up)
[PASS] source value = System.Byte[]
[INFO] BadUserAccessDenied — attribute's Galaxy-side ACL blocks writes for this session.
```
The `INFO` stage is correct behaviour — Source is `Operate`-classified and the anonymous session carries no LDAP roles. The Virtual-tag / Subscribe / Alarm / History stages stay at `[FAIL]` for two further environmental reasons once write is unblocked:
1. `TestMachine_001.TestHistoryValue` is driven by whatever Galaxy code runs on the object — idle in the default dev-box state, so no subscription pushes fire.
2. Historian writes require the Aveva Historian SDK to accept the alarm schema event — dev box doesn't have that path live.
Running `./test-galaxy.ps1 -Username writeop -Password writeop123` with step 4a's LDAP + `SecurityProfile = Basic256Sha256-Sign` applied unblocks the reverse-bridge + alarm-fires stages. The virtual-tag, subscribe, and history stages depend on further deployment choices (pick an attribute Galaxy is actively writing to, wire Aveva Historian SDK).
## First-run evidence (2026-04-20 dev box)
Ran the smoke against the live dev environment. Captured log signatures prove the Phase 7 wiring chain executes in production:
docs/v2/implementation/pr-1-body.md
-80
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@@ -1,80 +0,0 @@
# PR 1 — Phase 1 + Phase 2 A/B/C → v2
**Source**: `phase-1-configuration` (commits `980ea51..7403b92`, 11 commits)
**Target**: `v2`
**URL**: https://gitea.dohertylan.com/dohertj2/lmxopcua/pulls/new/phase-1-configuration
## Summary
- **Phase 1 complete** — Configuration project with 16 entities + 3 EF migrations
(InitialSchema + 8 stored procs + AuthorizationGrants), Core + Server + full Admin UI
(Blazor Server with cluster CRUD, draft → diff → publish → rollback, equipment with
OPC 40010, UNS, namespaces, drivers, ACLs, reservations, audit), LDAP via GLAuth
(`localhost:3893`), SignalR real-time fleet status + alerts.
- **Phase 2 Streams A + B + C feature-complete** — full IPC contract surface
(Galaxy.Shared, netstandard2.0, MessagePack), Galaxy.Host with real Win32 STA pump,
ACL + caller-SID + per-process-secret IPC, Galaxy-specific MemoryWatchdog +
RecyclePolicy + PostMortemMmf + MxAccessHandle, three `IGalaxyBackend`
implementations (Stub / DbBacked / **MxAccess** — real ArchestrA.MxAccess.dll
reference, x86, smoke-tested live against `LMXProxyServer`), Galaxy.Proxy with all
9 capability interfaces (`IDriver` / `ITagDiscovery` / `IReadable` / `IWritable` /
`ISubscribable` / `IAlarmSource` / `IHistoryProvider` / `IRediscoverable` /
`IHostConnectivityProbe`) + supervisor (Backoff + CircuitBreaker +
HeartbeatMonitor).
- **Phase 2 Stream D non-destructive deliverables** — appsettings.json → DriverConfig
migration script, two-service Windows installer scripts, process-spawn cross-FX
parity test, Stream D removal procedure doc with both Option A (rewrite 494 v1
tests) and Option B (archive + new v2 E2E suite) spelled out step-by-step.
## What's NOT in this PR
- Legacy `OtOpcUa.Host` deletion (Stream D.1) — reserved for a follow-up PR after
Option B's E2E suite is green. The 494 v1 tests still pass against the unchanged
legacy Host.
- Live-Galaxy parity validation (Stream E) — needs the iterative debug cycle the
removal-procedure doc describes.
## Tests
**964 pass / 1 pre-existing Phase 0 baseline failure**, across 14 test projects:
| Project | Pass | Notes |
|---|---:|---|
| Core.Abstractions.Tests | 24 | |
| Configuration.Tests | 42 | incl. 7 schema compliance, 8 stored-proc, 3 SQL-role auth, 13 validator, 6 LiteDB cache, 5 generation-applier |
| Core.Tests | 4 | DriverHost lifecycle |
| Server.Tests | 2 | NodeBootstrap + LiteDB cache fallback |
| Admin.Tests | 21 | incl. 5 RoleMapper, 6 LdapAuth, 3 LiveLdap, 2 FleetStatusPoller, 2 services-integration |
| Driver.Galaxy.Shared.Tests | 6 | Round-trip + framing |
| Driver.Galaxy.Host.Tests | 30 | incl. 5 GalaxyRepository live ZB, 3 live MXAccess COM, 5 EndToEndIpc, 2 IpcHandshake, 4 MemoryWatchdog, 3 RecyclePolicy, 3 PostMortemMmf, 3 StaPump, 2 service-installer dry-run |
| Driver.Galaxy.Proxy.Tests | 10 | 9 unit + 1 process-spawn parity |
| Client.Shared.Tests | 131 | unchanged |
| Client.UI.Tests | 98 | unchanged |
| Client.CLI.Tests | 51 / 1 fail | pre-existing baseline failure |
| Historian.Aveva.Tests | 41 | unchanged |
| IntegrationTests (net48) | 6 | unchanged — v1 parity baseline |
| **OtOpcUa.Tests (net48)** | **494** | **unchanged — v1 parity baseline** |
## Test plan for reviewers
- [ ] `dotnet build ZB.MOM.WW.OtOpcUa.slnx` succeeds with no warnings beyond the
known NuGetAuditSuppress + xUnit1051 warnings
- [ ] `dotnet test ZB.MOM.WW.OtOpcUa.slnx` shows the same 964/1 result
- [ ] `Get-Service aaGR, aaBootstrap` reports Running on the merger's box
- [ ] `docker ps --filter name=otopcua-mssql` shows the SQL container Up
- [ ] Admin UI boots (`dotnet run --project src/ZB.MOM.WW.OtOpcUa.Admin`); home page
renders at http://localhost:5123/; LDAP sign-in with GLAuth `readonly` /
`readonly123` succeeds
- [ ] Migration script dry-run: `powershell -File
scripts/migration/Migrate-AppSettings-To-DriverConfig.ps1 -DryRun` produces
a well-formed DriverConfig JSON
- [ ] Spot-read three commit messages to confirm the deferred-with-rationale items
are explicitly documented (`549cd36`, `a7126ba`, `7403b92` are the most
recent and most detailed)
## Follow-up tracking
PR 2 (next session) will execute Stream D Option B — archive `OtOpcUa.Tests` as
`OtOpcUa.Tests.v1Archive`, build the new `OtOpcUa.Driver.Galaxy.E2E` test project,
delete legacy `OtOpcUa.Host`, and run the parity-validation cycle. See
`docs/v2/implementation/stream-d-removal-procedure.md`.
docs/v2/implementation/pr-2-body.md
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@@ -1,69 +0,0 @@
# PR 2 — Phase 2 Stream D Option B (archive v1 + E2E suite) → v2
**Source**: `phase-2-stream-d` (branched from `phase-1-configuration`)
**Target**: `v2`
**URL** (after push): https://gitea.dohertylan.com/dohertj2/lmxopcua/pulls/new/phase-2-stream-d
## Summary
Phase 2 Stream D Option B per `docs/v2/implementation/stream-d-removal-procedure.md`:
- **Archived the v1 surface** without deleting:
- `tests/ZB.MOM.WW.OtOpcUa.Tests/` → `tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive/`
(`<AssemblyName>` kept as `ZB.MOM.WW.OtOpcUa.Tests` so v1 Host's `InternalsVisibleTo`
still matches; `<IsTestProject>false</IsTestProject>` so solution test runs skip it).
- `tests/ZB.MOM.WW.OtOpcUa.IntegrationTests/` — `<IsTestProject>false</IsTestProject>`
+ archive comment.
- `src/ZB.MOM.WW.OtOpcUa.Host/` + `src/ZB.MOM.WW.OtOpcUa.Historian.Aveva/` — archive
PropertyGroup comments. Both still build (Historian plugin + 41 historian tests still
pass) so Phase 2 PR 3 can delete them in a focused, reviewable destructive change.
- **New `tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.E2E/`** test project (.NET 10):
- `ParityFixture` spawns `OtOpcUa.Driver.Galaxy.Host.exe` (net48 x86) as a subprocess via
`Process.Start`, connects via real named pipe, exposes a connected `GalaxyProxyDriver`.
Skips when Galaxy ZB unreachable / Host EXE not built / Administrator shell.
- `HierarchyParityTests` (3) and `StabilityFindingsRegressionTests` (4) — one test per
2026-04-13 stability finding (phantom probe, cross-host quality clear, sync-over-async,
fire-and-forget alarm shutdown race).
- **`docs/v2/V1_ARCHIVE_STATUS.md`** — inventory + deletion plan for PR 3.
- **`docs/v2/implementation/exit-gate-phase-2-final.md`** — supersedes the two partial-exit
docs with the as-built state, adversarial review of PR 2 deltas (4 new findings), and the
recommended PR sequence (1 → 2 → 3 → 4).
## What's NOT in this PR
- Deletion of the v1 archive — saved for PR 3 with explicit operator review (destructive change).
- Wonderware Historian SDK plugin port — Task B.1.h, follow-up to enable real `HistoryRead`.
- MxAccess subscription push-frames — Task B.1.s, follow-up to enable real-time
data-change push from Host → Proxy.
## Tests
**`dotnet test ZB.MOM.WW.OtOpcUa.slnx`**: **470 pass / 7 skip / 1 pre-existing baseline**.
The 7 skips are the new E2E tests, all skipping with the documented reason
"PipeAcl denies Administrators on dev shells" — the production install runs as a non-admin
service account and these tests will execute there.
Run the archived v1 suites explicitly:
```powershell
dotnet test tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive # → 494 pass
dotnet test tests/ZB.MOM.WW.OtOpcUa.IntegrationTests # → 6 pass
```
## Test plan for reviewers
- [ ] `dotnet build ZB.MOM.WW.OtOpcUa.slnx` succeeds with no warnings beyond the known
NuGetAuditSuppress + NU1702 cross-FX
- [ ] `dotnet test ZB.MOM.WW.OtOpcUa.slnx` shows the 470/7-skip/1-baseline result
- [ ] Both archived suites pass when run explicitly
- [ ] Build the Galaxy.Host EXE (`dotnet build src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host`),
then run E2E tests on a non-admin shell — they should actually execute and pass
against live Galaxy ZB
- [ ] Spot-read `docs/v2/V1_ARCHIVE_STATUS.md` and confirm the deletion plan is acceptable
## Follow-up tracking
- **PR 3** (next session, when ready): execute the deletion plan in `V1_ARCHIVE_STATUS.md`.
4 projects removed, .slnx updated, full solution test confirms parity.
- **PR 4** (Phase 2 follow-up): port Historian plugin + wire MxAccess subscription pushes +
close the high/medium open findings from `exit-gate-phase-2-final.md`.
docs/v2/implementation/pr-4-body.md
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# PR 4 — Phase 2 follow-up: close the 4 open MXAccess findings
**Source**: `phase-2-pr4-findings` (branched from `phase-2-stream-d`)
**Target**: `v2`
## Summary
Closes the 4 high/medium open findings carried forward in `exit-gate-phase-2-final.md`:
- **High 1 — `ReadAsync` subscription-leak on cancel.** One-shot read now wraps the
subscribe→first-OnDataChange→unsubscribe pattern in a `try/finally` so the per-tag
callback is always detached, and if the read installed the underlying MXAccess
subscription itself (no other caller had it), it tears it down on the way out.
- **High 2 — No reconnect loop on the MXAccess COM connection.** New
`MxAccessClientOptions { AutoReconnect, MonitorInterval, StaleThreshold }` + a background
`MonitorLoopAsync` that watches a stale-activity threshold + probes the proxy via a
no-op COM call, then reconnects-with-replay (re-Register, re-AddItem every active
subscription) when the proxy is dead. Liveness signal: every `OnDataChange` callback bumps
`_lastObservedActivityUtc`. Defaults match v1 monitor cadence (5s poll, 60s stale).
`ReconnectCount` exposed for diagnostics; `ConnectionStateChanged` event for downstream
consumers (the supervisor on the Proxy side already surfaces this through its
HeartbeatMonitor, but the Host-side event lets local logging/metrics hook in).
- **Medium 3 — `MxAccessGalaxyBackend.SubscribeAsync` doesn't push OnDataChange frames back to
the Proxy.** New `IGalaxyBackend.OnDataChange` / `OnAlarmEvent` / `OnHostStatusChanged`
events that the new `GalaxyFrameHandler.AttachConnection` subscribes per-connection and
forwards as outbound `OnDataChangeNotification` / `AlarmEvent` /
`RuntimeStatusChange` frames through the connection's `FrameWriter`. `MxAccessGalaxyBackend`
fans out per-tag value changes to every `SubscriptionId` that's listening to that tag
(multiple Proxy subs may share a Galaxy attribute — single COM subscription, multi-fan-out
on the wire). Stub + DbBacked backends declare the events with `#pragma warning disable
CS0067` (treat-warnings-as-errors would otherwise fail on never-raised events that exist
only to satisfy the interface).
- **Medium 4 — `WriteValuesAsync` doesn't await `OnWriteComplete`.** New
`WriteAsync(...)` overload returns `bool` after awaiting the OnWriteComplete callback via
the v1-style `TaskCompletionSource`-keyed-by-item-handle pattern in `_pendingWrites`.
`MxAccessGalaxyBackend.WriteValuesAsync` now reports per-tag `Bad_InternalError` when the
runtime rejected the write, instead of false-positive `Good`.
## Pipe server change
`IFrameHandler` gains `AttachConnection(FrameWriter writer): IDisposable` so the handler can
register backend event sinks on each accepted connection and detach them at disconnect. The
`PipeServer.RunOneConnectionAsync` calls it after the Hello handshake and disposes it in the
finally of the per-connection scope. `StubFrameHandler` returns `IFrameHandler.NoopAttachment.Instance`
(net48 doesn't support default interface methods, so the empty-attach lives as a public nested
class).
## Tests
**`dotnet test ZB.MOM.WW.OtOpcUa.slnx`**: **460 pass / 7 skip (E2E on admin shell) / 1
pre-existing baseline failure**. No regressions. The Driver.Galaxy.Host unit tests + 5 live
ZB smoke + 3 live MXAccess COM smoke all pass unchanged.
## Test plan for reviewers
- [ ] `dotnet build` clean
- [ ] `dotnet test` shows 460/7-skip/1-baseline
- [ ] Spot-check `MxAccessClient.MonitorLoopAsync` against v1's `MxAccessClient.Monitor`
partial (`src/ZB.MOM.WW.OtOpcUa.Host/MxAccess/MxAccessClient.Monitor.cs`) — same
polling cadence, same probe-then-reconnect-with-replay shape
- [ ] Read `GalaxyFrameHandler.ConnectionSink.Dispose` and confirm event handlers are
detached on connection close (no leaked invocation list refs)
- [ ] `WriteValuesAsync` returning `Bad_InternalError` on a runtime-rejected write is the
correct shape — confirm against the v1 `MxAccessClient.ReadWrite.cs` pattern
## What's NOT in this PR
- Wonderware Historian SDK plugin port (Task B.1.h) — separate PR, larger scope.
- Alarm subsystem wire-up (`MxAccessGalaxyBackend.SubscribeAlarmsAsync` is still a no-op).
`OnAlarmEvent` is declared on the backend interface and pushed by the frame handler when
raised; `MxAccessGalaxyBackend` just doesn't raise it yet (waits for the alarm-tracking
port from v1's `AlarmObjectFilter` + Galaxy alarm primitives).
- Host-status push (`OnHostStatusChanged`) — declared on the interface and pushed by the
frame handler; `MxAccessGalaxyBackend` doesn't raise it (the Galaxy.Host's
`HostConnectivityProbe` from v1 needs porting too, scoped under the Historian PR).
## Adversarial review
Quick pass over the PR 4 deltas. No new findings beyond:
- **Low 1** — `MonitorLoopAsync`'s `$Heartbeat` probe item-handle is leaked
(`AddItem` succeeds, never `RemoveItem`'d). Cosmetic — the probe item is internal to
the COM connection, dies with `Unregister` at disconnect/recycle. Worth a follow-up
to call `RemoveItem` after the probe succeeds.
- **Low 2** — Replay loop in `MonitorLoopAsync` swallows per-subscription failures. If
Galaxy permanently rejects a previously-valid reference (rare but possible after a
re-deploy), the user gets silent data loss for that one subscription. The stub-handler-
unaware operator wouldn't notice. Worth surfacing as a `ConnectionStateChanged(false)
→ ConnectionStateChanged(true)` payload that includes the replay-failures list.
Both are low-priority follow-ups, not PR 4 blockers.
docs/v2/modbus-addressing.md
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# Modbus tag-addressing reference
Foundational doc for the Modbus addressing grammar shipped across #136–#144.
Covers the address-string parser (`ModbusAddressParser`) that the wire driver
and the Admin UI both consume, the per-tag suffix modifiers, and the family-
native branch.
## Grammar
```
<region><offset>[.<bit>][:<type>[<len>]][:<order>][:<count>]
```
Each field is optional from left to right; the parser fills defaults.
### Region + offset
Three accepted forms — pick whichever matches your tag spreadsheet's
convention. All three resolve to the same `(Region, ushort PduOffset)`
on the wire.
| Form | Example | Means |
|---|---|---|
| Modicon 5-digit | `40001` | Holding register 1 (PDU 0) |
| Modicon 6-digit | `400001` | Holding register 1 (PDU 0); supports up to `465536` (PDU 65535) |
| Mnemonic | `HR1`, `IR1`, `C100`, `DI1` | Same regions; `1`-based register number |
Modicon leading-digit → region:
| Digit | Region | OPC UA wire FC |
|---|---|---|
| `0` | Coils | FC01 / FC05 / FC15 |
| `1` | DiscreteInputs | FC02 (read-only) |
| `3` | InputRegisters | FC04 (read-only) |
| `4` | HoldingRegisters | FC03 / FC06 / FC16 |
### Bit suffix `.N`
`40001.5` = bit 5 (LSB-first) of HR[0]. Implies `DataType=BitInRegister`;
mixing with an explicit type or array-count is rejected.
### Type code `:T`
Codes verified 2026-04-25 against [Wonderware DASMBTCP user
guide](https://cdn.logic-control.com/media/DASMBTCP.pdf) and the
[Ignition Modbus addressing
manual](https://www.docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/opc-ua-drivers/modbus/modbus-addressing).
The `I` / `UI` / `I_64` / `UI_64` / `BCD_32` shapes match Wonderware's
suffix convention and Ignition's underscore-N prefix variants where
those vendors agree.
| Code | Type | Registers | Vendor reference |
|---|---|---|---|
| `BOOL` | Boolean | 1 (region must be Coils / DiscreteInputs) | universal |
| `S` | Int16 | 1 | Wonderware DASMBTCP `S` = 16-bit signed |
| `US` | UInt16 | 1 | Ignition `HRUS` = Unsigned Short |
| `I` | Int32 | 2 | Wonderware DASMBTCP `I` = 32-bit signed; Ignition `HRI` |
| `UI` | UInt32 | 2 | Ignition `HRUI` |
| `I_64` | Int64 | 4 | Ignition `HRI_64` |
| `UI_64` | UInt64 | 4 | Ignition `HRUI_64` |
| `F` | Float32 | 2 | Wonderware `F`; Ignition `HRF` |
| `D` | Float64 | 4 | Ignition `HRD` |
| `BCD` | 16-bit BCD | 1 | Ignition `HRBCD` |
| `BCD_32` | 32-bit BCD | 2 | Ignition `HRBCD_32` |
| `STR<len>` | ASCII string, `len` chars (2 chars / register) | `ceil(len/2)` | analogous to Ignition `HRS<addr>:<len>` |
Default when omitted:
- Coils / DiscreteInputs → `BOOL`
- HoldingRegisters / InputRegisters → `S` (Int16) — matches Ignition's bare-`HR` default
**Codes removed in #146** (silent wrong-data risk, never compatible with the
two reference vendors): `:DI`, `:L`, `:UDI`, `:UL`, `:LI`, `:ULI`, `:LBCD`.
Pre-#146 configs that use these get a clear "Unknown type code" diagnostic at
parse time; rewrite to the post-#146 codes per the table above.
### Byte order `:O`
| Mnemonic | Meaning | Wire |
|---|---|---|
| `ABCD` | Big-endian (Modbus spec default) | `[A,B,C,D]` |
| `CDAB` | Word swap (Siemens, several AB) | `[C,D,A,B]` |
| `BADC` | Byte swap (legacy little-endian-internal devices) | `[B,A,D,C]` |
| `DCBA` | Full reverse (some EtherNet/IP gateways) | `[D,C,B,A]` |
For 8-byte values (Int64 / Float64) the same labels apply pairwise.
### Array count `:N`
`40001:F:5` = `Float32[5]` (consumes HR[0..9]). Array + bit suffix is
rejected. Strings are not arrays.
### Composition
The 3-field shorthand `40001:F:5` is parsed as `(type=F, count=5)` because
`5` isn't a valid byte-order mnemonic. Use the explicit 4-field form
`40001:F:CDAB:5` when you need a non-default order.
## Family-native syntax (#144)
When the driver instance has `Family != Generic`, the parser tries the
family's native syntax FIRST, then falls back to Modicon / mnemonic.
### DL205 (AutomationDirect DirectLOGIC)
| Form | Example | Mapping |
|---|---|---|
| `Vnnnn` (octal) | `V2000` | HoldingRegisters[1024] (octal 2000 = decimal 1024) |
| `Ynn` (octal) | `Y17` | Coils[2048 + 15] (Y-output base + offset) |
| `Cnn` (octal) | `C100` | Coils[3072 + 64] (C-relay base + offset) |
| `Xnn` (octal) | `X17` | DiscreteInputs[15] |
| `SPnn` (octal) | `SP10` | DiscreteInputs[1024 + 8] |
**Cross-family ambiguity**: `C100` means Coils[99] under `Generic`
(mnemonic) but Coils[3136] under `DL205`. Per-driver Family choice
disambiguates.
### MELSEC (Mitsubishi)
| Form | Example | Mapping (sub-family Q_L_iQR / F_iQF) |
|---|---|---|
| `Dnnn` (decimal) | `D100` | HoldingRegisters[100] |
| `Mnnn` (decimal) | `M50` | Coils[50] |
| `Xnn` | `X20` | DiscreteInputs[32 hex / 16 octal] |
| `Ynn` | `Y20` | Coils[32 hex / 16 octal] |
X / Y digit interpretation depends on `MelsecSubFamily`:
- `Q_L_iQR` → hex (default)
- `F_iQF` → octal
Bank-base offsets default to 0 in the grammar string. Sites with non-zero
"Modbus Device Assignment" bases use the structured tag form.
## Driver-instance options
Beyond per-tag addressing, `ModbusDriverOptions` exposes (#139–#143):
### Connection (#139)
- `KeepAlive { Enabled, Time, Interval, RetryCount }` — TCP-level probes.
Defaults match the historical PR 53 wire output (Enabled=true, Time=30s,
Interval=10s, RetryCount=3).
- `IdleDisconnectTimeout` — proactively close + reconnect after this much
socket idle time. Default null = disabled.
- `Reconnect { InitialDelay, MaxDelay, BackoffMultiplier }` — geometric
backoff for the post-drop reconnect loop. Default
`(0, 30s, 2.0)` = immediate first retry, geometric thereafter.
### Protocol (#140)
- `MaxCoilsPerRead` (default 2000) — separate cap for FC01/FC02 coil reads.
- `UseFC15ForSingleCoilWrites` — force FC15 (write multiple coils
qty=1) for single-coil writes. Safety/audit PLCs may require this.
- `UseFC16ForSingleRegisterWrites` — same for FC16 vs FC06.
- `DisableFC23` — kill switch for FC23 (currently unused; reserved).
### Subscribe (#141)
- Per-tag `Deadband` — suppress sub-threshold publishes on numeric tags.
- `WriteOnChangeOnly` (driver-level) — short-circuit identical-value
writes. Cache invalidates on read-divergence.
### Multi-unit (#142)
- Per-tag `UnitId` — overrides the driver-level UnitId in the MBAP
header. Required for one-Ethernet-gateway / N-RTU-slave deployments.
- `IPerCallHostResolver.ResolveHost` returns `host:port/unitN` per tag so
per-PLC circuit breakers fire per slave.
- Per-tag `CoalesceProhibited` — escape hatch for #143's planner (read
this tag in isolation regardless of `MaxReadGap`).
### Block-read coalescing (#143)
- `MaxReadGap` (default 0 = off) — gap budget the planner is willing to
bridge between adjacent register tags. With `MaxReadGap=10`, three tags
at HR 100/102/110 collapse into one FC03 of quantity 11.
### Coalescing auto-recovery (#148 / #150 / #151 / #152)
- A coalesced read that fails with a Modbus exception (write-only or
protected register mid-block) records the failed range as
auto-prohibited. The planner stops re-coalescing across the range; the
per-tag fallback path keeps healthy members working in the same scan.
- **Bisection (#150)**: every re-probe pass narrows multi-register
prohibitions by trying the two halves separately. Over log2(span)
ticks the prohibition pins at the actual offending register(s);
intermediate halves that succeed get cleared.
- **Periodic re-probe (#151)**: opt in via
`AutoProhibitReprobeInterval` (TimeSpan?). Default null = disabled
(prohibitions persist for the driver lifetime; clear on
`ReinitializeAsync`).
- **Per-tag escape hatch**: `CoalesceProhibited` (bool, default false)
on `ModbusTagDefinition`. The planner reads such tags in isolation
regardless of `MaxReadGap`. Use for known-bad addresses you want to
exclude from the auto-discovery loop.
- **Diagnostics (#152)**: `ModbusDriver.GetAutoProhibitedRanges()`
returns a snapshot of every active prohibition as
`ModbusAutoProhibition` records (UnitId / Region / StartAddress /
EndAddress / LastProbedUtc / BisectionPending). Surface in the
driver-diagnostics RPC channel when that wiring lands; for now
consumable by in-process callers (Server health endpoints, log
aggregation).
## JSON DTO shape
The factory accepts both the structured form (legacy) and the new
`AddressString` form per-tag. Mix freely — newer pasted rows use the
grammar string; legacy rows keep the structured fields.
```json
{
"host": "10.1.2.3",
"port": 502,
"unitId": 1,
"family": "DL205",
"keepAlive": { "enabled": true, "timeMs": 30000, "intervalMs": 10000, "retryCount": 3 },
"idleDisconnectMs": 120000,
"reconnect": { "initialDelayMs": 0, "maxDelayMs": 30000, "backoffMultiplier": 2.0 },
"maxCoilsPerRead": 2000,
"writeOnChangeOnly": false,
"maxReadGap": 8,
"tags": [
{ "name": "Temp", "addressString": "V2000:F:CDAB" },
{ "name": "Setpoint", "addressString": "40001:I" },
{ "name": "Outputs", "addressString": "Y0:5" },
{ "name": "AlarmCount", "region": "HoldingRegisters", "address": 200, "dataType": "Int16", "deadband": 5.0 }
]
}
```
## Vendor compatibility caveat
The exact spelling of type codes (e.g. `I` vs `INT`, `BCD` vs `L_BCD`) and
the byte-order mnemonics were synthesised from training-era vendor docs
(Wonderware DASMBTCP, Kepware KEPServerEX, Ignition, Matrikon, OAS).
Before locking the grammar for a production deployment, verify against
the current Kepware "Modbus Ethernet Driver Help" PDF and Ignition's
"Modbus Addressing" user-manual page — if a critical tool's mnemonics
have shifted, add aliases in `ModbusAddressParser.TryParseType` rather
than asking users to rewrite spreadsheets.
docs/v2/modbus-test-plan.md
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@@ -70,6 +70,17 @@ integration tests until reproduced on hardware:
- TxId drop under load (forum rumour; not reproduced).
- Pre-2004 firmware ABCD word order (every shipped DL205/DL260 since 2004 is CDAB).
### Siemens SIMATIC S7
Quirk catalog at [`s7.md`](s7.md) — covers S7-1200 / S7-1500 / S7-300 / S7-400 /
ET 200SP. Modbus TCP isn't native; each platform exposes it via a different
add-on module with its own register-mapping conventions.
### Mitsubishi MELSEC
Quirk catalog at [`mitsubishi.md`](mitsubishi.md) — Modbus TCP via add-on modules
across the MELSEC family.
### Future devices
One section per device class, same shape as DL205. Quirks that apply across
docs/v2/multi-host-dispatch.md
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# Multi-host dispatch — per-PLC circuit breakers
Phase 6.1 decision #144 / task #135. Motivation: a single DriverInstance that fronts N PLCs (Modbus with multiple slaves, AB CIP with multiple ControlLogix chassis, etc.) must not let one dead PLC trip the resilience breaker for its healthy siblings.
This note documents the shipped contract so future driver authors don't re-derive it.
## Contract
The resilience pipeline keys on `(DriverInstanceId, HostName, DriverCapability)`. One dead PLC opens only the pipeline keyed on its HostName; healthy sibling PLCs keep their own pipelines intact.
Three participants:
1. **`DriverResiliencePipelineBuilder.GetOrCreate(driverInstanceId, hostName, capability, options)`** — the pipeline cache. First call per key builds a Polly pipeline (timeout → retry → breaker). Subsequent calls return the cached instance. Covered by `DriverResiliencePipelineBuilderTests.Pipeline_IsIsolated_PerHost`.
2. **`CapabilityInvoker.ExecuteAsync(capability, hostName, callSite, ct)`** — takes `hostName` per-call. Threads it straight through to the pipeline builder. Covered by `CapabilityInvokerTests`.
3. **`IPerCallHostResolver.ResolveHost(fullReference)`** — an optional interface a multi-device driver implements. `DriverNodeManager.ResolveHostFor` calls it on every capability dispatch so the host flowing into the invoker comes from the tag's per-PLC metadata, not the driver instance. Single-device drivers don't implement it — `DriverNodeManager` falls back to `DriverInstanceId` as the hostname, which still flows through the same `(instance, host, capability)` key shape (one pipeline per single-device instance).
End-to-end `dead PLC, healthy PLC` scenario proven by `PerCallHostResolverDispatchTests.DeadPlc_DoesNotOpenBreaker_For_HealthyPlc_With_Resolver`.
## Driver author checklist
To light up per-PLC circuit breakers on a multi-device driver:
1. **Options model** — extend the driver's options type with an explicit device list. See `AbCipDriverOptions.Devices : IReadOnlyList<AbCipDeviceConfig>`.
2. **Tag → device mapping** — parse the tag's `DeviceId` from `TagConfig`. The driver's per-tag definition records the device HostAddress alongside the wire address. See `AbCipTagDefinition.DeviceHostAddress`.
3. **`IPerCallHostResolver`** — implement it on the driver. `ResolveHost(fullReference)` looks up the tag's definition and returns the device HostAddress. Unknown references should return a deterministic fallback (e.g. the first configured device's host) rather than throw — the invoker handles the mislookup at capability level when the actual read surfaces `BadNodeIdUnknown`.
4. **Health surface** — `IHostConnectivityProbe.GetHostStatuses()` returns one `HostConnectivityStatus` per configured device so the Admin UI fleet page lights the per-PLC status distinctly.
5. **Transport per device** — one network connection per PLC, serialized per device via `SemaphoreSlim` (or equivalent). Do not share a transport across PLCs; the breaker-isolation guarantee disappears if they share a queue.
## Current fleet status (2026-04-24)
| Driver | Per-tag device | `IPerCallHostResolver` | Per-PLC breaker isolation |
|---|---|---|---|
| AB CIP | ✅ `DeviceId` | ✅ | ✅ live |
| AB Legacy | 1 device / instance | — (not needed) | trivial |
| Modbus | 1 device / instance today | — | trivial — multi-device refactor tracked separately |
| S7 | 1 device / instance today | — | trivial — same |
| TwinCAT | 1 device / instance today | — | trivial — same |
| FOCAS | 1 CNC / instance | — (not needed) | trivial |
| Galaxy | 1 Galaxy Host / instance | — (not needed) | trivial — Host recycle runs per instance |
| OPC UA Client | 1 upstream / instance | — (not needed) | trivial |
"Trivial" above means the pipeline key ends up as `(DriverInstanceId, DriverInstanceId, capability)` via `DriverNodeManager.ResolveHostFor`'s fallback — one pipeline per driver instance, which is correct for single-device drivers.
Extending Modbus / S7 / TwinCAT to multi-device follows the AB CIP template verbatim; it's per-driver surgery (schema row + options model + resolver implementation + transport fan-out) rather than shared-infrastructure work.
docs/v2/plan.md
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@@ -689,7 +689,7 @@ Galaxy.Proxy ──→ Galaxy.Shared ←── Galaxy.Host
**Decided:**
- Mono-repo (Decision #31 above).
- `Core.Abstractions` is **internal-only for now** — no standalone NuGet. Keep the contract mutable while the first 8 drivers are being built; revisit publishing after Phase 5 when the shape has stabilized. Design the contract *as if* it will eventually be public (no leaky types, stable names) to minimize churn later.
- `Core.Abstractions` is **internal-only for now** — no standalone NuGet. Keep the contract mutable while the first 8 drivers are being built; revisit publishing after the driver fleet (originally Phase 5, folded into the Phase 3 umbrella — see exit gate) once the shape has stabilized. Design the contract *as if* it will eventually be public (no leaky types, stable names) to minimize churn later.
---
@@ -742,24 +742,30 @@ Each step leaves the system runnable. The generic extraction is effectively free
10. **Build `Galaxy.Proxy`** — .NET 10 in-process proxy implementing IDriver interfaces, forwarding over IPC
11. **Validate parity** — v2 Galaxy driver must pass the same integration tests as v1
**Phase 3 — Modbus TCP driver (prove the abstraction)**
12. **Build `Driver.ModbusTcp`** — NModbus, config-driven tags from central DB, internal poll loop, device-as-folder hierarchy
13. **Add Modbus config screens to Admin** (first driver-specific config UI)
**Phase 3 — Driver fleet (all seven non-Galaxy drivers) — ✅ CLOSED 2026-04-23** (see [`implementation/exit-gate-phase-3.md`](implementation/exit-gate-phase-3.md))
**Phase 4 — PLC drivers**
14. **Build `Driver.AbCip`** — libplctag, ControlLogix/CompactLogix symbolic tags + Admin config screens
15. **Build `Driver.AbLegacy`** — libplctag, SLC 500/MicroLogix file-based addressing + Admin config screens
16. **Build `Driver.S7`** — S7netplus, Siemens S7-300/400/1200/1500 + Admin config screens
17. **Build `Driver.TwinCat`** — Beckhoff.TwinCAT.Ads v6, native ADS notifications, symbol upload + Admin config screens
Originally split across Phase 3 (Modbus alone), Phase 4 (PLC drivers), and
Phase 5 (specialty drivers). In execution, once `Core.Abstractions` had
stabilised under Phase 1 + Phase 2, each driver landed as its own stream
rather than as a gated mini-phase; the phase numbers were folded into a
single umbrella. Shipped:
**Phase 5 — Specialty drivers**
18. **Build `Driver.Focas`** — FANUC FOCAS2 P/Invoke, pre-defined CNC tag set, PMC/macro config + Admin config screens
19. **Build `Driver.OpcUaClient`** — OPC UA client gateway/aggregation, namespace remapping, subscription proxying + Admin config screens
12. **`Driver.Modbus`** — NModbus, config-driven tags, internal poll loop, device-as-folder hierarchy (umbrella closure #210)
13. **`Driver.AbCip`** — libplctag, ControlLogix/CompactLogix symbolic tags (#211, live-booted under #220)
14. **`Driver.AbLegacy`** — libplctag, SLC 500 / MicroLogix / PLC-5 file-based addressing (#213, live-booted under #222)
15. **`Driver.S7`** — S7netplus, Siemens S7-300/400/1200/1500 (#212, live-booted under #220)
16. **`Driver.TwinCAT`** — Beckhoff.TwinCAT.Ads v7, native ADS notifications, symbol upload (factory wired 2026-04-23; wire-live deferred, #221)
17. **`Driver.FOCAS`** — FANUC FOCAS2 P/Invoke via Tier-C out-of-process `Driver.FOCAS.Host` (#220 five-PR split; wire-live deferred, #222 follow-up)
18. **`Driver.OpcUaClient`** — OPC UA client gateway / aggregation, namespace remapping, subscription proxying (scaffold #66; live-boot 5/8 stages via `test-opcuaclient.ps1`)
Supporting infrastructure: `DriverFactoryRegistry` + `DriverInstanceBootstrapper`
(#248); per-driver test-client CLI suite (#249–#251); e2e test scripts with
aggregate runner (#253); server-side factory + seed SQL per driver (#210–#213).
**Decided:**
- **Parity test for Galaxy**: existing v1 IntegrationTests suite + scripted Client.CLI walkthrough (see Section 4 above).
- **Timeline**: no hard deadline. Each phase ships when it's right — tests passing, Galaxy parity bar met. Quality cadence over calendar cadence.
- **FOCAS SDK**: license already secured. Phase 5 can proceed as scheduled; `Fwlib64.dll` available for P/Invoke.
- **FOCAS SDK**: license already secured. FOCAS driver shipped as part of the Phase 3 umbrella with Tier-C host; `Fwlib64.dll` available for P/Invoke (wire-level live-boot gated on lab rig, #222 follow-up).
---
docs/v2/redundancy-interop-playbook.md
+128
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@@ -0,0 +1,128 @@
# Redundancy Interop Playbook (Phase 6.3 Stream F — task #150)
> **Scope**: manual validation that third-party OPC UA clients + AVEVA MXAccess
> observe our non-transparent redundancy signals (ServiceLevel, ServerUriArray,
> RedundancySupport) and fail over to the Backup node when the Primary drops.
>
> **Why manual**: the third-party clients named here are Windows-GUI binaries
> (UaExpert, Kepware QuickClient) or embedded inside AVEVA System Platform.
> Automating any of them into PR-CI is out of scope for v2. This playbook
> captures the minimal dev-box-plus-VM setup and the expected pass criteria so
> the work can be executed repeatably at v2 release readiness and after any
> Phase 6.3 follow-up change.
## Prerequisites
1. Two `OtOpcUa.Server` nodes in one `ServerCluster`:
- Declared as `NodeCount = 2`, `RedundancyMode = Hot` (or `Warm`).
- Each with a distinct `ApplicationUri` (enforced by unique index per
decision #86).
- Each node's `StaticRoutes.xml` points at the other (`ServerCluster.Node[].Host`).
2. `scripts/install/Install-Services.ps1` applied on each node so the
`RedundancyPublisherHostedService` is running.
3. At least one `DriverInstance` with a reachable simulator or PLC so both
servers have a non-empty address space to browse.
4. On the client host:
- `UaExpert` ≥ 1.7 installed
- Kepware `ClientAce QuickClient` (or equivalent) — optional, for a second
client
5. For the AVEVA leg: a `Galaxy.Host` running against an MXAccess deployment
with an external OPC UA client object pointed at the cluster (not at a
single node).
## Expected signals on a running cluster
| Node | `ServiceLevel` | `RedundancySupport` | `ServerUriArray` |
|---|---|---|---|
| Primary, healthy, peer reachable | 200 | `Hot` (or `Warm`) | self + peer |
| Primary, mid-apply | 75 (`PrimaryMidApply`) | same | same |
| Primary, peer UNreachable | 150 (`PrimaryPeerDown`) | same | same |
| Backup, healthy | 100 (`Secondary`) | same | same |
| Either, dwelling in recovery | 50 (`Recovering`) | same | same |
| Either, invariant violation (two Primary, disabled-node mismatch) | 2 (`InvalidTopology`) | same | same |
(The band constants live in `ServiceLevelCalculator.Classify`.)
## Test matrix
Each row is one manual run; pass criterion in the right column.
### Block A — UA protocol signals (UaExpert)
| # | Scenario | Procedure | Pass criterion |
|---|---|---|---|
| A1 | ServiceLevel published | Connect UaExpert to Primary. Browse to `Server.ServerStatus.ServiceLevel`. | Value = 200 (or the expected Band byte per table above) |
| A2 | ServiceLevel updates on peer down | Connect to Primary. Stop Backup (`sc stop OtOpcUa`). Watch `ServiceLevel`. | Transitions 200 → 150 within ~2 s of peer probe timeout |
| A3 | RedundancySupport | Browse to `Server.ServerRedundancy.RedundancySupport`. | Value matches the declared `RedundancyMode` (Warm / Hot / None) |
| A4 | ServerUriArray (non-transparent upgrade) | Requires a redundancy-object-type upgrade follow-up. | When upgrade lands: `ServerUriArray` reports both ApplicationUris, self first |
| A5 | Mid-apply dip | On Primary trigger a `sp_PublishGeneration` apply. | `ServiceLevel` drops to 75 for the apply duration + dwell |
### Block B — Client failover
| # | Scenario | Procedure | Pass criterion |
|---|---|---|---|
| B1 | UaExpert picks Primary by ServiceLevel | In UaExpert configure a Redundancy Group with both endpoint URLs. | Client picks the Primary URL (higher ServiceLevel) |
| B2 | UaExpert cuts over on Primary kill | Kill the Primary's `OtOpcUa` service. | Client session reconnects to Backup within UaExpert's reconnect timeout (default 5 s). Data-change monitored items resume. |
| B3 | UaExpert cuts back when Primary returns | Start the Primary service. Wait ≥ recovery dwell (see `RecoveryStateManager.DwellTime`). | `ServiceLevel` on returning Primary goes through 50 (Recovering) → 200; UaExpert may or may not switch back (client-policy dependent; both are accepted outcomes) |
| B4 | Kepware QuickClient failover | Repeat B1–B3 with Kepware in place of UaExpert. | Same pass criteria; establishes we're not UaExpert-specific |
### Block C — Galaxy MXAccess failover
This block validates that an AVEVA System Platform app consuming our cluster
via MXAccess tolerates a Primary drop the same way a native OPC UA client does.
The MXAccess toolkit internally wraps the OPC UA Client and does its own
redundancy negotiation; we're asserting that negotiation honors our
`ServiceLevel` signal.
| # | Scenario | Procedure | Pass criterion |
|---|---|---|---|
| C1 | Galaxy binds to Primary on first connect | Bring the cluster up. Start a Galaxy `$MxAccessClient` object pointed at the cluster with both node URLs. | Galaxy reports `QUALITY = Good` + initial values from the Primary |
| C2 | Galaxy redirects on Primary drop | Stop the Primary. | Galaxy's `QUALITY` briefly goes `Uncertain`, then back to `Good`; values continue streaming from the Backup within MXAccess's `ReconnectInterval` (default 20 s) |
| C3 | Galaxy handles mid-apply dip | Trigger a generation apply on the Primary. | Galaxy continues reading — the mid-apply dip is advertisory (ServiceLevel 75), not a session drop; MXAccess should stay bound |
## Recording results
Copy the tables above into a tracking doc per run. The tracking doc shape:
```
Run date: 2026-MM-DD
Cluster: <id> Primary: <node> Backup: <node> Release: <sha>
A1: PASS evidence: UaExpert screenshot uaexpert-a1.png
A2: PASS evidence: ServiceLevel trend grafana-a2.png
…
```
One pass of every row is the acceptance criterion. Re-run after any Phase 6.3
follow-up ships (especially the non-transparent redundancy-type upgrade, which
flips A4 from "deferred" to "expected pass").
## Known limitations
- **A4 pending**: `Server.ServerRedundancy` on our current SDK build lands as
the base `ServerRedundancyState`, which has no `ServerUriArray` child.
`ServerRedundancyNodeWriter.ApplyServerUriArray` logs-and-skips until the
redundancy-object-type upgrade follow-up lands.
- **Recovery dwell default**: `RecoveryStateManager.DwellTime` defaults to 60 s
in `Program.cs`. Adjust via future config knob if B3 takes too long to
observe.
- **C-block external dependency**: The `Galaxy.Host` side of the redundancy
story is largely out of our code — it's MXAccess's own client-redundancy
policy talking to our published ServiceLevel. A negative result on C1-C3
does not necessarily indicate an OtOpcUa bug; cross-check with UaExpert
(Block A / B) first.
## Automation notes (why this is a playbook, not a test)
- UaExpert and Kepware binaries are closed-source Windows GUIs; they don't
ship headless CLIs for the browse/connect/subscribe flows.
- The OPC Foundation reference SDK *can* drive every scenario, but our own
`Driver.OpcUaClient` tests already cover that client's behaviour; Block B
adds value specifically because these two clients have independent
redundancy implementations we don't control.
- For the sub-set of scenarios that *can* be automated — the self-loopback
case where our own `otopcua-cli` drives Primary + Backup — the existing
`tests/ZB.MOM.WW.OtOpcUa.Server.Tests/RedundancyStatePublisherTests` +
`ServiceLevelCalculatorTests` (unit) + `ClusterTopologyLoaderTests`
(integration) already cover the math + data path. The wire-level assertion
that the values actually land on the right OPC UA nodes is covered by
`ServerRedundancyNodeWriterTests`.
docs/v2/v2-release-readiness.md
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@@ -1,7 +1,7 @@
# v2 Release Readiness
> **Last updated**: 2026-04-19 (all three release blockers CLOSED — Phase 6.3 Streams A/C core shipped)
> **Status**: **RELEASE-READY (code-path)** for v2 GA — all three code-path release blockers are closed. Remaining work is manual (client interop matrix, deployment checklist signoff, OPC UA CTT pass) + hardening follow-ups; see exit-criteria checklist below.
> **Last updated**: 2026-04-24 (Phase 5 driver complement closed — AB CIP, AB Legacy, TwinCAT, FOCAS all shipped; FOCAS Tier-C retired for a pure-managed in-process client)
> **Status**: **RELEASE-READY (code-path)** for v2 GA. All three original code-path release blockers remain closed. Phase 5 is now complete. Remaining work is manual (live-hardware validations, client interop matrix, deployment checklist signoff, OPC UA CTT pass) + hardening follow-ups; see exit-criteria checklist below.
This doc is the single view of where v2 stands against its release criteria. Update it whenever a deferred follow-up closes or a new release blocker is discovered.
@@ -14,67 +14,78 @@ This doc is the single view of where v2 stands against its release criteria. Upd
| Phase 2 — Galaxy driver split (Proxy/Host/Shared) | ✓ | Shipped |
| Phase 3 — OPC UA server + LDAP + security profiles | ✓ | Shipped |
| Phase 4 — Redundancy scaffold (entities + endpoints) | ✓ | Shipped (runtime closes in 6.3) |
| Phase 5 — Drivers | ⚠ partial | Galaxy / Modbus / S7 / OpcUaClient shipped; AB CIP / AB Legacy / TwinCAT / FOCAS deferred (task #120) |
| Phase 6.1 — Resilience & Observability | ✓ | **SHIPPED** (PRs #78–83) |
| Phase 6.2 — Authorization runtime | ◐ core | **SHIPPED (core)** (PRs #84–88); dispatch wiring + Admin UI deferred |
| Phase 6.3 — Redundancy runtime | ◐ core | **SHIPPED (core)** (PRs #89–90); coordinator + UA-node wiring + Admin UI + interop deferred |
| Phase 6.4 — Admin UI completion | ◐ data layer | **SHIPPED (data layer)** (PRs #91–92); Blazor UI + OPC 40010 address-space wiring deferred |
| Phase 5 — Drivers | ✓ | **Shipped** — Galaxy, Modbus (+ DL205/S7/MELSEC profiles), S7 native, OPC UA Client, AB CIP, AB Legacy, TwinCAT ADS, FOCAS (managed wire client) |
| Phase 6.1 — Resilience & Observability | ✓ | Shipped (PRs #78–83) |
| Phase 6.2 — Authorization runtime | ◐ core | Core shipped (PRs #84–88, #94 dispatch wiring); finer-grained Browse/Subscribe/Alarm/Call gating + 3-user interop matrix deferred |
| Phase 6.3 — Redundancy runtime | ◐ core | Core shipped (PRs #89–90, #98–99); peer-probe HostedServices, OPC UA variable-node binding, `sp_PublishGeneration` lease wrap, client interop matrix deferred |
| Phase 6.4 — Admin UI completion | ◐ data layer + Identification | Data layer + OPC 40010 Identification folder shipped (PRs #91–92, Identification audit close-out 2026-04-23); Blazor UI pieces deferred |
**Aggregate test counts:** 906 baseline (pre-Phase-6) → **1159 passing** across Phase 6. One pre-existing Client.CLI `SubscribeCommandTests.Execute_PrintsSubscriptionMessage` flake tracked separately.
**Driver integration-test counts** (end-to-end against live or simulated targets): Modbus 26, FOCAS 9, AbCip 7, OpcUaClient 3, S7 3, AbLegacy 2, TwinCAT 2. Plus Galaxy's separate cross-FX parity/stability suite.
**Aggregate test counts** (2026-04-19 baseline): 1159 passing across the solution. One pre-existing Client.CLI `SubscribeCommandTests.Execute_PrintsSubscriptionMessage` flake tracked separately. Rerun `dotnet test ZB.MOM.WW.OtOpcUa.slnx` after the FOCAS migration commits land to refresh the number.
## Release blockers (must close before v2 GA)
Ordered by severity + impact on production fitness.
All code-path release blockers are closed. The remaining items are live-hardware / manual validations listed under exit criteria.
### ~~Security — Phase 6.2 dispatch wiring~~ (task #143 — **CLOSED** 2026-04-19, PR #94)
**Closed**. `AuthorizationGate` + `NodeScopeResolver` now thread through `OpcUaApplicationHost → OtOpcUaServer → DriverNodeManager`. `OnReadValue` + `OnWriteValue` + all four HistoryRead paths call `gate.IsAllowed(identity, operation, scope)` before the invoker. Production deployments activate enforcement by constructing `OpcUaApplicationHost` with an `AuthorizationGate(StrictMode: true)` + populating the `NodeAcl` table.
**Closed**. `AuthorizationGate` + `NodeScopeResolver` thread through `OpcUaApplicationHost → OtOpcUaServer → DriverNodeManager`. `OnReadValue` + `OnWriteValue` + all four HistoryRead paths call `gate.IsAllowed(identity, operation, scope)` before the invoker. Production deployments activate enforcement by constructing `OpcUaApplicationHost` with an `AuthorizationGate(StrictMode: true)` + populating the `NodeAcl` table.
Additional Stream C surfaces (not release-blocking, hardening only):
Remaining Stream C surfaces (hardening, not release-blocking):
- Browse + TranslateBrowsePathsToNodeIds gating with ancestor-visibility logic per `acl-design.md` §Browse.
- CreateMonitoredItems + TransferSubscriptions gating with per-item `(AuthGenerationId, MembershipVersion)` stamp so revoked grants surface `BadUserAccessDenied` within one publish cycle (decision #153).
- Alarm Acknowledge / Confirm / Shelve gating.
- Call (method invocation) gating.
- Finer-grained scope resolution — current `NodeScopeResolver` returns a flat cluster-level scope. Joining against the live Configuration DB to populate UnsArea / UnsLine / Equipment path is tracked as Stream C.12.
- ~~Browse + TranslateBrowsePathsToNodeIds gating with ancestor-visibility logic per `acl-design.md` §Browse.~~ **Partial, 2026-04-24.** `DriverNodeManager.Browse` override post-filters the `ReferenceDescription` list via a new `FilterBrowseReferences` helper — denied nodes disappear silently per OPC UA convention. Ancestor-visibility implication (Read-grant at `Line/Tag` implying Browse on `Line`) still to ship; needs a subtree-has-any-grant query on the trie evaluator. `TranslateBrowsePathsToNodeIds` surface not yet wired.
- ~~CreateMonitoredItems + TransferSubscriptions gating with per-item `(AuthGenerationId, MembershipVersion)` stamp so revoked grants surface `BadUserAccessDenied` within one publish cycle (decision #153).~~ **Partial, 2026-04-24.** `DriverNodeManager.CreateMonitoredItems` override pre-gates each request and pre-populates `BadUserAccessDenied` into the errors slot for denied items (the base stack honours pre-set errors and skips those items). Decision #153's per-item `(AuthGenerationId, MembershipVersion)` stamp for detecting mid-subscription revocation is still to ship — needs subscription-layer plumbing. TransferSubscriptions not yet wired (same pattern).
- ~~Alarm Acknowledge / Confirm / Shelve gating.~~ **Partial, 2026-04-24.** Acknowledge + Confirm map to dedicated `OpcUaOperation.AlarmAcknowledge` / `AlarmConfirm` via `MapCallOperation`; Shelve falls through to generic `OpcUaOperation.Call` (needs per-instance method NodeId resolution to distinguish — follow-up).
- ~~Call (method invocation) gating.~~ **Closed 2026-04-24.** `DriverNodeManager.Call` override pre-gates each `CallMethodRequest` via `GateCallMethodRequests`. Denied calls return `BadUserAccessDenied` without running the method. Alarm methods map to alarm-specific operation kinds; everything else gates as generic `Call`.
- ~~Finer-grained scope resolution — current `NodeScopeResolver` returns a flat cluster-level scope. Joining against the live Configuration DB to populate UnsArea / UnsLine / Equipment path is tracked as Stream C.12.~~ **Closed 2026-04-24.** `AuthorizationBootstrap` now loads `NodeAcl` rows for the current generation into a `PermissionTrieCache`, builds the gate, and merges every registered driver's `EquipmentNamespaceContent` into a full-path `NodeScopeResolver` index. `OpcUaServerService` calls the bootstrap after the equipment registry is populated, before `OpcUaApplicationHost.StartAsync`. Disabled by default — operators flip `Node:Authorization:Enabled=true` to enforce, `StrictMode=true` to reject anonymous/no-groups identities.
- 3-user integration matrix covering every operation × allow/deny.
These are additional hardening — the three highest-value surfaces (Read / Write / HistoryRead) are now gated, which covers the base-security gap for v2 GA.
### ~~Config fallback — Phase 6.1 Stream D wiring~~ (task #136 — **CLOSED** 2026-04-19, PR #96)
**Closed**. `SealedBootstrap` consumes `ResilientConfigReader` + `GenerationSealedCache` + `StaleConfigFlag` end-to-end: bootstrap calls go through the timeout → retry → fallback-to-sealed pipeline; every central-DB success writes a fresh sealed snapshot so the next cache-miss has a known-good fallback; `StaleConfigFlag.IsStale` is now consumed by `HealthEndpointsHost.usingStaleConfig` so `/healthz` body reports reality.
**Closed**. `SealedBootstrap` consumes `ResilientConfigReader` + `GenerationSealedCache` + `StaleConfigFlag` end-to-end; `/healthz` surfaces the stale flag.
Production activation: Program.cs switches `NodeBootstrap → SealedBootstrap` + constructs `OpcUaApplicationHost` with the `StaleConfigFlag` as an optional ctor parameter.
Remaining follow-ups (hardening, not release-blocking):
Remaining follow-ups (hardening):
- A `HostedService` that polls `sp_GetCurrentGenerationForCluster` periodically so peer-published generations land in this node's cache without a restart.
- Richer snapshot payload via `sp_GetGenerationContent` so fallback can serve the full generation content (DriverInstance enumeration, ACL rows, etc.) from the sealed cache alone.
- Richer snapshot payload via `sp_GetGenerationContent` so fallback can serve full generation content (DriverInstance enumeration, ACL rows, etc.) from the sealed cache alone.
### ~~Redundancy — Phase 6.3 Streams A/C core~~ (tasks #145 + #147 — **CLOSED** 2026-04-19, PRs #98–99)
**Closed**. The runtime orchestration layer now exists end-to-end:
- `RedundancyCoordinator` reads `ClusterNode` + peer list at startup (Stream A shipped in PR #98). Invariants enforced: 1-2 nodes (decision #83), unique ApplicationUri (#86), ≤1 Primary in Warm/Hot (#84). Startup fails fast on violation; runtime refresh logs + flips `IsTopologyValid=false` so the calculator falls to band 2 without tearing down.
- `RedundancyStatePublisher` orchestrates topology + apply lease + recovery state + peer reachability through `ServiceLevelCalculator` + emits `OnStateChanged` / `OnServerUriArrayChanged` edge-triggered events (Stream C core shipped in PR #99). The OPC UA `ServiceLevel` Byte variable + `ServerUriArray` String[] variable subscribe to these events.
**Closed**. `RedundancyCoordinator` + `RedundancyStatePublisher` + `PeerReachabilityTracker` orchestrate topology + apply lease + recovery state + peer reachability through `ServiceLevelCalculator` + emit `OnStateChanged` / `OnServerUriArrayChanged` edge-triggered events.
Remaining Phase 6.3 surfaces (hardening, not release-blocking):
- `PeerHttpProbeLoop` + `PeerUaProbeLoop` HostedServices that poll the peer + write to `PeerReachabilityTracker` on each tick. Without these the publisher sees `PeerReachability.Unknown` for every peer → Isolated-Primary band (230) even when the peer is up. Safe default (retains authority) but not the full non-transparent-redundancy UX.
- OPC UA variable-node wiring layer: bind the `ServiceLevel` Byte node + `ServerUriArray` String[] node to the publisher's events via `BaseDataVariable.OnReadValue` / direct value push. Scoped follow-up on the Opc.Ua.Server stack integration.
- `sp_PublishGeneration` wraps its apply in `await using var lease = coordinator.BeginApplyLease(...)` so the `PrimaryMidApply` band (200) fires during actual publishes (task #148 part 2).
- Client interop matrix validation — Ignition / Kepware / Aveva OI Gateway (Stream F, task #150). Manual + doc-only work; doesn't block code ship.
- ~~`PeerHttpProbeLoop` + `PeerUaProbeLoop` HostedServices populating `PeerReachabilityTracker` on each tick.~~ **Closed 2026-04-24.** Two-layer probe model shipped: HTTP probe at 2 s / 1 s timeout against `/healthz`; OPC UA probe at 10 s / 5 s timeout via `DiscoveryClient.GetEndpoints`, short-circuiting when HTTP reports the peer unhealthy. Registered on the Server as `AddHostedService<PeerHttpProbeLoop>` + `AddHostedService<PeerUaProbeLoop>`. Publisher now sees accurate `PeerReachability` per peer instead of degrading to `Unknown` → Isolated-Primary band (230).
- OPC UA variable-node wiring: bind `ServiceLevel` Byte + `ServerUriArray` String[] to the publisher's events via `BaseDataVariable.OnReadValue` / direct value push.
- ~~`sp_PublishGeneration` wraps its apply in `await using var lease = coordinator.BeginApplyLease(...)` so the `PrimaryMidApply` band (200) fires during actual publishes (task #148 part 2).~~ **Closed 2026-04-24.** The apply loop now lives in `GenerationRefreshHostedService` — polls `sp_GetCurrentGenerationForCluster` every 5s, opens a lease when a new generation is detected, calls `RedundancyCoordinator.RefreshAsync` inside the `await using`, releases the lease on all exit paths. Replaces the previous "topology never refreshes without a process restart" behaviour.
- Client interop matrix — Ignition / Kepware / Aveva OI Gateway (Stream F, task #150). Manual + doc-only.
### Remaining drivers (task #120)
### ~~Phase 5 driver complement~~ (task #120 — **CLOSED** 2026-04-24)
AB CIP, AB Legacy, TwinCAT ADS, FOCAS drivers are planned but unshipped. Decision pending on whether these are release-blocking for v2 GA or can slip to a v2.1 follow-up.
**Closed**. All four deferred drivers shipped:
- **AB CIP** (PRs #202–222) — `Driver.AbCip`, `Driver.AbCip.IntegrationTests` (7 tests), AB CIP Cli. Live-boot verified against a ControlLogix rig.
- **AB Legacy** (PRs #202, #223) — `Driver.AbLegacy`, `Driver.AbLegacy.IntegrationTests` (2 tests), AB Legacy Cli. PCCC cip-path workaround for SLC/MicroLogix.
- **TwinCAT ADS** (PRs #205, this branch `task-galaxy-e2e`) — `Driver.TwinCAT`, `Driver.TwinCAT.IntegrationTests` (2 tests), TwinCAT Cli. TCBSD/ESXi fixture for e2e since local Hyper-V / TwinCAT RTIME are mutually exclusive on the dev box.
- **FOCAS** (PRs #173, #199 + this session's migration) — `Driver.FOCAS` with an **in-process managed `FocasWireClient`** that speaks FOCAS/2 over TCP directly. Tier-C isolation retired — `Driver.FOCAS.Host` + `Driver.FOCAS.Shared` + `FwlibNative` P/Invoke + shim DLL + NSSM service all deleted. `Driver.FOCAS.IntegrationTests` covers 9 scenarios (fixed tree identity/axes/program/timers/spindle + user-authored PARAM/MACRO/PMC reads, Browse, Subscribe, IAlarmSource raise/clear, Probe transitions).
Decision recorded: FOCAS is **read-only** against the CNC by design — writes return `BadNotWritable`. See `docs/drivers/FOCAS.md` + `docs/drivers/FOCAS-Test-Fixture.md` for the deployment + coverage map.
## Nice-to-haves (not release-blocking)
- **Admin UI** — Phase 6.1 Stream E.2/E.3 (`/hosts` column refresh), Phase 6.2 Stream D (`RoleGrantsTab` + `AclsTab` Probe), Phase 6.3 Stream E (`RedundancyTab`), Phase 6.4 Streams A/B UI pieces, Stream C DiffViewer, Stream D `IdentificationFields.razor`. Tasks #134, #144, #149, #153, #155, #156, #157.
- **Background services** — Phase 6.1 Stream B.4 `ScheduledRecycleScheduler` HostedService (task #137), Phase 6.1 Stream A analyzer (task #135 — Roslyn analyzer asserting every capability surface routes through `CapabilityInvoker`).
- **Multi-host dispatch** — Phase 6.1 Stream A follow-up (task #135). Currently every driver gets a single pipeline keyed on `driver.DriverInstanceId`; multi-host drivers (Modbus with N PLCs) need per-PLC host resolution so failing PLCs trip per-PLC breakers without poisoning siblings. Decision #144 requires this but we haven't wired it yet.
- **Multi-host dispatch** — Phase 6.1 Stream A follow-up (task #135). Every driver currently gets a single pipeline keyed on `driver.DriverInstanceId`; multi-host drivers (Modbus with N PLCs) need per-PLC host resolution so failing PLCs trip per-PLC breakers without poisoning siblings. Decision #144 requires this but not wired.
- **Phase 7** — scripting + alarming + historian sink (plan drafted 2026-04-20 in `docs/v2/implementation/phase-7-*.md`). Out of scope for v2 GA.
## Live-hardware validations (task #54 + task family)
The code ships; these tasks remain open as lab/field verification:
- **#54** — FOCAS live-CNC wire-level smoke against a real FANUC control. The mock's wire responder is PDU-verified against `fwlibe64.dll` upstream but OtOpcUa's managed client has not been pointed at a production CNC.
- **AB CIP live-boot** — already passed on a ControlLogix rig (PR #222). Continue to run ahead of each release.
- **TwinCAT wire-live** — TCBSD/ESXi fixture covers the common path; production PLC verification remains lab-gated.
## Running the release-readiness check
@@ -82,7 +93,12 @@ AB CIP, AB Legacy, TwinCAT ADS, FOCAS drivers are planned but unshipped. Decisio
pwsh ./scripts/compliance/phase-6-all.ps1
```
This meta-runner invokes each `phase-6-N-compliance.ps1` script in sequence and reports an aggregate PASS/FAIL. It is the single-command verification that what we claim is shipped still compiles + tests pass + the plan-level invariants are still satisfied.
This meta-runner invokes each `phase-6-N-compliance.ps1` script in sequence and reports an aggregate PASS/FAIL:
- `phase-6-1-compliance.ps1` — Resilience & Observability
- `phase-6-2-compliance.ps1` — Authorization runtime
- `phase-6-3-compliance.ps1` — Redundancy runtime
- `phase-6-4-compliance.ps1` — Admin UI completion
Exit 0 = every phase passes its compliance checks + no test-count regression.
@@ -92,18 +108,23 @@ v2 GA requires all of the following:
- [ ] All four Phase 6.N compliance scripts exit 0.
- [ ] `dotnet test ZB.MOM.WW.OtOpcUa.slnx` passes with ≤ 1 known-flake failure.
- [ ] Release blockers listed above all closed (or consciously deferred to v2.1 with a written decision).
- [x] Release blockers listed above all closed.
- [x] Phase 5 driver complement shipped (Galaxy, Modbus, S7, OpcUaClient, AbCip, AbLegacy, TwinCAT, FOCAS).
- [ ] Production deployment checklist (separate doc) signed off by Fleet Admin.
- [ ] At least one end-to-end integration run against the live Galaxy on the dev box succeeds.
- [ ] FOCAS live-CNC wire-level smoke (#54) runs clean against a real FANUC control.
- [ ] OPC UA conformance test (CTT or UA Compliance Test Tool) passes against the live endpoint.
- [ ] Non-transparent redundancy cutover validated with at least one production client (Ignition 8.3 recommended — see decision #85).
## Change log
- **2026-04-19** — Release blocker #3 **closed** (PRs #98–99). Phase 6.3 Streams A + C core shipped: `ClusterTopologyLoader` + `RedundancyCoordinator` + `RedundancyStatePublisher` + `PeerReachabilityTracker`. Code-path release blockers all closed; remaining Phase 6.3 surfaces (peer-probe HostedServices, OPC UA variable-node binding, sp_PublishGeneration lease wrap, client interop matrix) are hardening follow-ups.
- **2026-04-19** — Release blocker #2 **closed** (PR #96). `SealedBootstrap` consumes `ResilientConfigReader` + `GenerationSealedCache` + `StaleConfigFlag`; `/healthz` now surfaces the stale flag. Remaining follow-ups (periodic poller + richer snapshot payload) downgraded to hardening.
- **2026-04-19** — Release blocker #1 **closed** (PR #94). `AuthorizationGate` wired into `DriverNodeManager` Read / Write / HistoryRead dispatch. Remaining Stream C surfaces (Browse / Subscribe / Alarm / Call + finer-grained scope resolution) downgraded to hardening follow-ups — no longer release-blocking.
- **2026-04-19** — Phase 6.4 data layer merged (PRs #91–92). Phase 6 core complete. Capstone doc created.
- **2026-04-24** — Phase 5 driver complement closed (task #120 CLOSED). AB CIP, AB Legacy, TwinCAT, FOCAS all shipped. FOCAS migration: retired the Tier-C split (`Driver.FOCAS.Host` + `Driver.FOCAS.Shared` + `FwlibNative` + shim DLL deleted) in favour of a pure-managed in-process `FocasWireClient` inlined into `Driver.FOCAS`; driver is now read-only against the CNC by design. Integration test matrix grew to cover Browse / Subscribe / IAlarmSource / Probe end-to-end.
- **2026-04-23** — Phase 6.4 audit close-out. IdentificationFolderBuilder + OPC 40010 Identification folder verified against the shipped code.
- **2026-04-20** — Phase 7 plan drafted (`phase-7-scripting-and-alarming.md`, `phase-7-e2e-smoke.md`). Out of scope for v2 GA.
- **2026-04-19** — Release blocker #3 closed (PRs #98–99). Phase 6.3 Streams A + C core shipped: `ClusterTopologyLoader` + `RedundancyCoordinator` + `RedundancyStatePublisher` + `PeerReachabilityTracker`. Code-path release blockers all closed; remaining Phase 6.3 surfaces (peer-probe HostedServices, OPC UA variable-node binding, `sp_PublishGeneration` lease wrap, client interop matrix) are hardening follow-ups.
- **2026-04-19** — Release blocker #2 closed (PR #96). `SealedBootstrap` consumes `ResilientConfigReader` + `GenerationSealedCache` + `StaleConfigFlag`; `/healthz` surfaces the stale flag. Remaining follow-ups (periodic poller + richer snapshot payload) downgraded to hardening.
- **2026-04-19** — Release blocker #1 closed (PR #94). `AuthorizationGate` wired into `DriverNodeManager` Read / Write / HistoryRead dispatch. Remaining Stream C surfaces (Browse / Subscribe / Alarm / Call + finer-grained scope resolution) downgraded to hardening follow-ups — no longer release-blocking.
- **2026-04-19** — Phase 6.4 data layer merged (PRs #91–92). Phase 6 core complete.
- **2026-04-19** — Phase 6.3 core merged (PRs #89–90). `ServiceLevelCalculator` + `RecoveryStateManager` + `ApplyLeaseRegistry` land as pure logic; coordinator / UA-node wiring / Admin UI / interop deferred.
- **2026-04-19** — Phase 6.2 core merged (PRs #84–88). `AuthorizationGate` + `TriePermissionEvaluator` + `LdapGroupRoleMapping` land; dispatch wiring + Admin UI deferred.
- **2026-04-19** — Phase 6.1 shipped (PRs #78–83). Polly resilience + Tier A/B/C stability + health endpoints + LiteDB generation-sealed cache + Admin `/hosts` data layer all live.
docs/v3/twincat-backlog.md
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# TwinCAT driver — v3 backlog
The v2 TwinCAT driver is considered solid: 28 integration tests (14 `[TwinCATFact]` +
16-case `[TwinCATTheory]`) running live against the TCBSD fixture, 110 unit tests,
three latent driver bugs shaken out (notification cycle units, `STRING(N)` mapper,
bit-indexed BOOL path). Further work is deferred.
Archived from `docs/drivers/TwinCAT-Test-Fixture.md` § Follow-up candidates.
## Deferred items
1. **TC2 coverage** — spin up a TC2 runtime (Windows CE IPC or legacy XAR)
and run the same suite; any delta surfaces. Blocked on hardware.
2. **Notification coalescing under load** — run the subscribe test while
the PLC cycle is saturated (bump `lineSim` complexity, watch for
dropped notifications). Doable on current rig; deferred as lower
priority than v3 feature work.
3. **Multi-hop AMS route** — add a test behind an IPC gateway with a
chained route entry. Blocked on hardware (gateway IPC).
4. **License-rotation automation** — XAR's 7-day trial expires on
schedule. Either automate `TcActivate.exe /reactivate` via a scheduled
task on the VM (not officially supported; reportedly works for some
TC3 builds), or buy a paid runtime license (~$1k one-time per runtime
per CPU) to kill the rotation. Ops item, not code.
5. **Lab rig** — cheapest IPC (CX7000 / CX9020) on a dedicated network;
the only route that covers TC2 + real EtherCAT I/O timing + cycle
jitter under CPU load. Blocked on hardware + budget.
gr/CLAUDE.md
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# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Purpose
The goal of this project is to identify and develop SQL queries that extract the Galaxy object hierarchy from the **System Platform Galaxy Repository** database in order to build a tag structure for an OPC UA server.
Specifically, we need to:
- Build the hierarchy of **areas** and **automation objects** (using contained names for human-readable browsing)
- Translate contained names to **tag_names** for read/write operations (e.g., `TestMachine_001.DelmiaReceiver` in the hierarchy becomes `DelmiaReceiver_001` when addressing tag values)
See `layout.md` for details on the hierarchy vs tag name relationship.
## Key Files
### Documentation
- `connectioninfo.md` — Database connection details and sqlcmd usage
- `layout.md` — Galaxy object hierarchy, contained_name vs tag_name translation, and target OPC UA structure
- `build_layout_plan.md` — Step-by-step plan for extracting hierarchy, attaching attributes, and monitoring for changes
- `data_type_mapping.md` — Galaxy mx_data_type to OPC UA DataType mapping, including array handling (ValueRank, ArrayDimensions)
### Queries
- `queries/hierarchy.sql` — Deployed object hierarchy with browse names and parent relationships
- `queries/attributes.sql` — User-defined (dynamic) attributes with data types and array dimensions
- `queries/attributes_extended.sql` — All attributes (system + user-defined) with data types and array dimensions
- `queries/change_detection.sql` — Poll `galaxy.time_of_last_deploy` to detect deployment changes
### Schema Reference
- `schema.md` — Full schema reference for all tables and views in the ZB database
- `ddl/tables/` — Individual CREATE TABLE definitions
- `ddl/views/` — Individual view definitions
## Working with the Galaxy Repository Database
The Galaxy Repository is the backing SQL Server database for Wonderware/AVEVA System Platform (Galaxy: ZB, localhost, Windows Auth). Key tables used by the queries:
- **gobject** — Object instances, hierarchy (contained_by_gobject_id, area_gobject_id), deployment state (deployed_package_id)
- **template_definition** — Object type categories (category_id distinguishes areas, engines, user-defined objects, etc.)
- **dynamic_attribute** — User-defined attributes on templates, inherited by instances via derived_from_gobject_id chain
- **attribute_definition** — System/primitive attributes
- **primitive_instance** — Links objects to their primitive components and attribute definitions
- **galaxy** — Single-row table with time_of_last_deploy for change detection
Use `sqlcmd -S localhost -d ZB -E -Q "..."` to run queries. See `connectioninfo.md` for details.
## Conventions
- Store all connection parameters in `connectioninfo.md`, not scattered across scripts.
- Keep SQL query examples and extraction notes as Markdown files in this repo.
- If scripts are added (Python, PowerShell, etc.), document their usage and dependencies alongside them.
gr/build_layout_plan.md
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# OPC UA Server Layout — Build Plan
## Overview
Extract the Galaxy object hierarchy and tag definitions from the ZB (Galaxy Repository) database to construct an OPC UA server address space. The root node is hardcoded as **ZB**.
## Step 1: Build the Browse Tree
Run `queries/hierarchy.sql` to get all deployed automation objects and their parent-child relationships.
For each row returned:
- `parent_gobject_id = 0` → child of the root ZB node
- `is_area = 1` → create as an OPC UA folder node (organizational)
- `is_area = 0` → create as an OPC UA object node (container for tags)
- Use `browse_name` as the OPC UA BrowseName/DisplayName
- Store `gobject_id` and `tag_name` for attribute lookup and tag reference translation
Build the tree by matching each row's `parent_gobject_id` to another row's `gobject_id`. The result is:
```
ZB (root, hardcoded)
└── DEV (folder, is_area=1)
├── DevAppEngine (object)
├── DevPlatform (object)
└── TestArea (folder, is_area=1)
├── DevTestObject (object)
└── TestMachine_001 (object)
├── DelmiaReceiver (object, browse_name from contained_name)
└── MESReceiver (object, browse_name from contained_name)
```
## Step 2: Attach Attributes as Tag Nodes
Run `queries/attributes.sql` to get all user-defined attributes for deployed objects.
For each attribute row:
- Match to the browse tree via `gobject_id`
- Create an OPC UA variable node under the matching object node
- Use `attribute_name` as the BrowseName/DisplayName
- Use `full_tag_reference` as the runtime tag path for read/write operations
- Map `mx_data_type` to OPC UA built-in types:
| mx_data_type | Description | OPC UA Type |
|--------------|-------------|-------------|
| 1 | Boolean | Boolean |
| 2 | Integer | Int32 |
| 3 | Float | Float |
| 4 | Double | Double |
| 5 | String | String |
| 6 | Time | DateTime |
| 7 | ElapsedTime | Double (seconds) or Duration |
- If `is_array = 1`, create the variable as an array with rank 1 and dimension from `array_dimension`
## Step 3: Monitor for Changes
Poll `queries/change_detection.sql` on a regular interval (e.g., every 30 seconds).
```
SELECT time_of_last_deploy FROM galaxy;
```
Compare the returned `time_of_last_deploy` to the last known value:
- **No change** → do nothing
- **Changed** → a deployment occurred; re-run Steps 1 and 2 to rebuild the address space
This handles objects being deployed, undeployed, added, or removed.
## Connection Details
See `connectioninfo.md` for database connection parameters and sqlcmd usage.
```
sqlcmd -S localhost -d ZB -E -Q "YOUR QUERY HERE"
```
## Query Files
| File | Purpose |
|------|---------|
| `queries/hierarchy.sql` | Deployed object hierarchy with browse names and parent relationships |
| `queries/attributes.sql` | User-defined attributes with data types and array dimensions |
| `queries/attributes_extended.sql` | All attributes (system + user-defined) with data types and array dimensions |
| `queries/change_detection.sql` | Poll galaxy.time_of_last_deploy for deployment changes |
gr/connectioninfo.md
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# Galaxy Repository — Connection Information
## Database Connection
| Parameter | Value |
|-----------------|----------------|
| Server | localhost (default instance) |
| Database Name | ZB |
| Port | 1433 (default) |
| Authentication | Windows Auth |
| Username | dohertj2 |
## sqlcmd Usage
```
sqlcmd -S localhost -d ZB -E -Q "YOUR QUERY HERE"
```
- `-S localhost` — default instance
- `-d ZB` — database name
- `-E` — Windows Authentication (dohertj2)
## Notes
- The Galaxy Repository is a SQL Server database created and managed by AVEVA System Platform (formerly Wonderware).
- Typically accessed via SQL Server Management Studio (SSMS), `sqlcmd`, or programmatically via ODBC/ADO.NET/pyodbc.
gr/data_type_mapping.md
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# Data Type Mapping — Galaxy Repository to OPC UA
## Scalar Type Mapping
| mx_data_type | Galaxy Description | OPC UA DataType | OPC UA NodeId | Notes |
|--------------|--------------------|-----------------|---------------|-------|
| 1 | Boolean | Boolean | i=1 | Direct mapping |
| 2 | Integer (Int32) | Int32 | i=6 | Galaxy integers are 32-bit signed |
| 3 | Float (Single) | Float | i=10 | 32-bit IEEE 754 |
| 4 | Double | Double | i=11 | 64-bit IEEE 754 |
| 5 | String | String | i=12 | Unicode string |
| 6 | Time (DateTime) | DateTime | i=13 | Galaxy DateTime to OPC UA DateTime (100ns ticks since 1601-01-01) |
| 7 | ElapsedTime (TimeSpan) | Double | i=11 | No native OPC UA TimeSpan; map to Double representing seconds (or use Duration type alias, NodeId i=290) |
| 8 | (reference) | String | i=12 | Object reference; expose as string representation |
| 13 | (enumeration) | Int32 | i=6 | Enum backing value is integer |
| 14 | (custom) | String | i=12 | Fallback to string |
| 15 | InternationalizedString | LocalizedText | i=21 | OPC UA LocalizedText supports locale + text pairs |
| 16 | (custom) | String | i=12 | Fallback to string |
## OPC UA Built-in Type Reference
For context, the full set of OPC UA built-in types and their NodeIds:
| NodeId | Type | Description |
|--------|------|-------------|
| i=1 | Boolean | True/false |
| i=2 | SByte | Signed 8-bit integer |
| i=3 | Byte | Unsigned 8-bit integer |
| i=4 | Int16 | Signed 16-bit integer |
| i=5 | UInt16 | Unsigned 16-bit integer |
| i=6 | Int32 | Signed 32-bit integer |
| i=7 | UInt32 | Unsigned 32-bit integer |
| i=8 | Int64 | Signed 64-bit integer |
| i=9 | UInt64 | Unsigned 64-bit integer |
| i=10 | Float | 32-bit IEEE 754 |
| i=11 | Double | 64-bit IEEE 754 |
| i=12 | String | Unicode string |
| i=13 | DateTime | Date and time (100ns ticks since 1601-01-01) |
| i=14 | Guid | 128-bit globally unique identifier |
| i=15 | ByteString | Sequence of bytes |
| i=21 | LocalizedText | Locale + text pair |
## Array Handling
When `is_array = 1` in the attributes query, the OPC UA variable node must be configured as an array.
### ValueRank
Set on the OPC UA variable node to indicate scalar vs array:
| is_array | ValueRank | Meaning |
|----------|-----------|---------|
| 0 | -1 (Scalar) | Value is not an array |
| 1 | 1 (OneDimension) | Value is a one-dimensional array |
### ArrayDimensions
When `ValueRank = 1`, set the `ArrayDimensions` attribute to a single-element array containing the `array_dimension` value from the attributes query.
Example for `MESReceiver_001.MoveInPartNumbers` (`is_array=1`, `array_dimension=50`):
- DataType: String (i=12)
- ValueRank: 1
- ArrayDimensions: [50]
Example for `TestMachine_001.MachineID` (`is_array=0`):
- DataType: String (i=12)
- ValueRank: -1
- ArrayDimensions: (not set)
## Security Classification
Galaxy attributes have a `security_classification` column that controls the access level required for writes. The attributes query returns this value for each attribute.
| security_classification | Galaxy Level | OPC UA Access | Description |
|-------------------------|--------------|---------------|-------------|
| 0 | FreeAccess | ReadWrite | No security restrictions |
| 1 | Operate | ReadWrite | Normal operating level (default) |
| 2 | SecuredWrite | ReadOnly | Requires elevated write access |
| 3 | VerifiedWrite | ReadOnly | Requires verified/confirmed write access |
| 4 | Tune | ReadWrite | Tuning-level access |
| 5 | Configure | ReadWrite | Configuration-level access |
| 6 | ViewOnly | ReadOnly | Read-only, no writes permitted |
Most attributes default to `Operate` (1). Higher values indicate more restrictive write access. `ViewOnly` (6) attributes should be exposed as read-only in OPC UA (`AccessLevel = CurrentRead` only, no `CurrentWrite`).
## DateTime Conversion
Galaxy `Time` (mx_data_type=6) stores DateTime values. OPC UA DateTime is defined as the number of 100-nanosecond intervals since January 1, 1601 (UTC). Ensure the conversion accounts for:
- Timezone: Galaxy may store local time; OPC UA expects UTC
- Epoch difference: adjust if Galaxy uses a different epoch (e.g., Unix epoch 1970-01-01)
## ElapsedTime Handling
Galaxy `ElapsedTime` (mx_data_type=7) represents a duration/timespan. OPC UA has no native TimeSpan type. Options:
- **Double (i=11)**: Store as seconds (recommended for simplicity)
- **Duration (i=290)**: OPC UA type alias for Double, semantically represents milliseconds — use if the OPC UA SDK supports it
gr/ddl/tables/ConversionQueue.sql
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-- Table: ConversionQueue
CREATE TABLE [ConversionQueue] (
[id] int NULL,
[Name] nvarchar(329) NULL,
[IsCheckedOut] bit NOT NULL,
[Status] bit NOT NULL DEFAULT ((0)),
[MetaData] nchar(256) NULL,
[OperationType] nchar(20) NOT NULL,
[timestamp_of_last_change] bigint NULL,
[change_type] int NULL
);
GO
gr/ddl/tables/CurrentSessionContainedName.sql
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@@ -1,9 +0,0 @@
-- Table: CurrentSessionContainedName
CREATE TABLE [CurrentSessionContainedName] (
[Uniqeid] int NOT NULL,
[obj_id] int NULL,
[containedname] nvarchar(32) NULL,
CONSTRAINT [PK_CurrentSessionContainedName] PRIMARY KEY ([Uniqeid])
);
GO
gr/ddl/tables/ImportTransaction.sql
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@@ -1,7 +0,0 @@
-- Table: ImportTransaction
CREATE TABLE [ImportTransaction] (
[ImportOperationId] nvarchar(329) NULL,
[Status] bit NOT NULL DEFAULT ((1))
);
GO
gr/ddl/tables/aa_sql_objects.sql
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@@ -1,8 +0,0 @@
-- Table: aa_sql_objects
CREATE TABLE [aa_sql_objects] (
[object_name] nvarchar(128) NOT NULL,
[object_type] nvarchar(10) NOT NULL,
CONSTRAINT [PK_aa_sql_objects] PRIMARY KEY ([object_name])
);
GO
gr/ddl/tables/affected_overview_symbols.sql
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@@ -1,9 +0,0 @@
-- Table: affected_overview_symbols
CREATE TABLE [affected_overview_symbols] (
[gobject_id] int NOT NULL,
[package_id] int NOT NULL,
[mx_primitive_id] smallint NOT NULL,
[visual_element_id] int NOT NULL
);
GO
gr/ddl/tables/alarm_message_defaults.sql
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@@ -1,8 +0,0 @@
-- Table: alarm_message_defaults
CREATE TABLE [alarm_message_defaults] (
[phrase_id] int NOT NULL,
[default_message] nvarchar(1024) NOT NULL,
CONSTRAINT [PK_alarm_message_defaults] PRIMARY KEY ([phrase_id])
);
GO
gr/ddl/tables/alarm_message_timestamps.sql
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@@ -1,8 +0,0 @@
-- Table: alarm_message_timestamps
CREATE TABLE [alarm_message_timestamps] (
[gobject_id] int NOT NULL,
[timestamp_of_populate] bigint NOT NULL DEFAULT ((0)),
CONSTRAINT [PK_alarm_message_timestamps] PRIMARY KEY ([gobject_id])
);
GO
gr/ddl/tables/alarm_message_translations.sql
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@@ -1,12 +0,0 @@
-- Table: alarm_message_translations
CREATE TABLE [alarm_message_translations] (
[phrase_id] int NOT NULL,
[locale_id] smallint NOT NULL,
[translated_message] nvarchar(1024) NOT NULL,
CONSTRAINT [PK_alarm_message_translations] PRIMARY KEY ([phrase_id], [locale_id], [phrase_id], [locale_id])
);
GO
ALTER TABLE [alarm_message_translations] ADD FOREIGN KEY ([locale_id]) REFERENCES [supported_locales] ([locale_id]);
GO
gr/ddl/tables/alarm_messages.sql
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@@ -1,13 +0,0 @@
-- Table: alarm_messages
CREATE TABLE [alarm_messages] (
[gobject_id] int NOT NULL,
[package_id] int NOT NULL,
[mx_primitive_id] smallint NOT NULL,
[phrase_id] int NOT NULL,
CONSTRAINT [PK_alarm_messages] PRIMARY KEY ([gobject_id], [package_id], [mx_primitive_id], [phrase_id], [gobject_id], [gobject_id], [mx_primitive_id], [package_id], [gobject_id], [mx_primitive_id], [package_id], [gobject_id], [mx_primitive_id], [package_id])
);
GO
ALTER TABLE [alarm_messages] ADD FOREIGN KEY ([package_id]) REFERENCES [primitive_instance] ([package_id]);
GO
gr/ddl/tables/attribute_definition.sql
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-- Table: attribute_definition
CREATE TABLE [attribute_definition] (
[attribute_definition_id] int NOT NULL,
[primitive_definition_id] int NOT NULL,
[attribute_name] nvarchar(329) NOT NULL,
[mx_attribute_id] smallint NOT NULL,
[has_config_set_handler] bit NOT NULL,
[mx_data_type] smallint NOT NULL,
[is_array] bit NOT NULL,
[security_classification] smallint NOT NULL,
[security_classification_needs_deployed] bit NOT NULL,
[mx_attribute_category] int NOT NULL,
[is_frequently_accessed] bit NOT NULL,
[is_locked] bit NOT NULL,
[is_locked_needs_deployed] bit NOT NULL,
[mx_value] text(2147483647) NOT NULL,
[mx_value_needs_deployed] bit NOT NULL,
CONSTRAINT [PK_attribute_definition] PRIMARY KEY ([primitive_definition_id], [mx_attribute_id], [primitive_definition_id])
);
GO
ALTER TABLE [attribute_definition] ADD FOREIGN KEY ([primitive_definition_id]) REFERENCES [primitive_definition] ([primitive_definition_id]);
GO
gr/ddl/tables/attribute_reference.sql
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@@ -1,26 +0,0 @@
-- Table: attribute_reference
CREATE TABLE [attribute_reference] (
[gobject_id] int NOT NULL,
[package_id] int NOT NULL,
[referring_mx_primitive_id] smallint NOT NULL DEFAULT ((0)),
[referring_mx_attribute_id] smallint NOT NULL DEFAULT ((0)),
[element_index] smallint NOT NULL DEFAULT ((0)),
[resolved_gobject_id] int NOT NULL DEFAULT ((0)),
[reference_string] nvarchar(700) NOT NULL DEFAULT (''),
[context_string] nvarchar(329) NOT NULL DEFAULT (''),
[object_signature] int NOT NULL DEFAULT ((0)),
[resolved_mx_primitive_id] smallint NOT NULL DEFAULT ((0)),
[resolved_mx_attribute_id] smallint NOT NULL DEFAULT ((0)),
[resolved_mx_property_id] smallint NOT NULL DEFAULT ((0)),
[attribute_signature] int NOT NULL DEFAULT ((0)),
[lock_type] int NOT NULL DEFAULT ((0)),
[is_valid] bit NOT NULL DEFAULT ((0)),
[attr_res_status] int NOT NULL DEFAULT ((0)),
[attribute_index] smallint NULL DEFAULT ((-1)),
CONSTRAINT [PK_attribute_reference] PRIMARY KEY ([gobject_id], [package_id], [referring_mx_primitive_id], [referring_mx_attribute_id], [element_index], [gobject_id], [package_id], [referring_mx_primitive_id], [gobject_id], [package_id], [referring_mx_primitive_id], [gobject_id], [package_id], [referring_mx_primitive_id])
);
GO
ALTER TABLE [attribute_reference] ADD FOREIGN KEY ([referring_mx_primitive_id]) REFERENCES [primitive_instance] ([package_id]);
GO
gr/ddl/tables/attributes_translation_table.sql
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@@ -1,11 +0,0 @@
-- Table: attributes_translation_table
CREATE TABLE [attributes_translation_table] (
[gobject_id] int NULL,
[attribute_name] nvarchar(329) NOT NULL,
[new_primitive_id] int NULL,
[new_attribute_id] int NULL,
[old_primitive_id] int NULL,
[old_attribute_id] int NULL
);
GO
gr/ddl/tables/autobind_device.sql
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@@ -1,11 +0,0 @@
-- Table: autobind_device
CREATE TABLE [autobind_device] (
[dio_id] int NOT NULL,
[overridden_naming_rule_id] int NULL,
CONSTRAINT [PK_autobind_device] PRIMARY KEY ([dio_id], [overridden_naming_rule_id], [dio_id])
);
GO
ALTER TABLE [autobind_device] ADD FOREIGN KEY ([dio_id]) REFERENCES [gobject] ([gobject_id]);
GO
gr/ddl/tables/autobind_device_category.sql
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@@ -1,11 +0,0 @@
-- Table: autobind_device_category
CREATE TABLE [autobind_device_category] (
[category_id] smallint NOT NULL,
[rule_id] int NULL DEFAULT ((0)),
CONSTRAINT [PK_autobind_device_category] PRIMARY KEY ([category_id], [rule_id], [category_id])
);
GO
ALTER TABLE [autobind_device_category] ADD FOREIGN KEY ([category_id]) REFERENCES [lookup_category] ([category_id]);
GO
gr/ddl/tables/autobind_device_template.sql
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@@ -1,11 +0,0 @@
-- Table: autobind_device_template
CREATE TABLE [autobind_device_template] (
[template_definition_id] int NOT NULL,
[rule_id] int NULL,
CONSTRAINT [PK_autobind_device_template] PRIMARY KEY ([template_definition_id], [rule_id], [template_definition_id])
);
GO
ALTER TABLE [autobind_device_template] ADD FOREIGN KEY ([template_definition_id]) REFERENCES [template_definition] ([template_definition_id]);
GO
gr/ddl/tables/autobind_device_topic.sql
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@@ -1,13 +0,0 @@
-- Table: autobind_device_topic
CREATE TABLE [autobind_device_topic] (
[dio_id] int NOT NULL,
[sg_mx_primitive_id] smallint NOT NULL DEFAULT ((0)),
[overridden_naming_rule_id] int NULL,
[default_xlate_rule_id] int NOT NULL DEFAULT ((0)),
CONSTRAINT [PK_autobind_device_topic] PRIMARY KEY ([dio_id], [sg_mx_primitive_id], [overridden_naming_rule_id], [dio_id])
);
GO
ALTER TABLE [autobind_device_topic] ADD FOREIGN KEY ([dio_id]) REFERENCES [autobind_device] ([dio_id]);
GO
gr/ddl/tables/autobind_naming_rule.sql
-8
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@@ -1,8 +0,0 @@
-- Table: autobind_naming_rule
CREATE TABLE [autobind_naming_rule] (
[rule_id] int NOT NULL,
[rule_name] nvarchar(329) NOT NULL,
CONSTRAINT [PK_autobind_naming_rule] PRIMARY KEY ([rule_id])
);
GO
gr/ddl/tables/autobind_naming_rule_spec.sql
-12
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@@ -1,12 +0,0 @@
-- Table: autobind_naming_rule_spec
CREATE TABLE [autobind_naming_rule_spec] (
[rule_id] int NOT NULL,
[io_type] nchar(1) NOT NULL,
[rule_spec] nvarchar(512) NOT NULL,
CONSTRAINT [PK_autobind_naming_rule_spec] PRIMARY KEY ([rule_id], [io_type], [rule_id])
);
GO
ALTER TABLE [autobind_naming_rule_spec] ADD FOREIGN KEY ([rule_id]) REFERENCES [autobind_naming_rule] ([rule_id]);
GO
gr/ddl/tables/autobind_translation_rule.sql
-10
View File
@@ -1,10 +0,0 @@
-- Table: autobind_translation_rule
CREATE TABLE [autobind_translation_rule] (
[xlate_rule_id] int NOT NULL,
[xlate_rule_name] nvarchar(329) NOT NULL,
[xlate_rule_gsub_str] nvarchar(1000) NULL,
[xlate_rule_scope_global] bit NOT NULL DEFAULT ((0)),
CONSTRAINT [PK_autobind_translation_rule] PRIMARY KEY ([xlate_rule_id])
);
GO
gr/ddl/tables/autobound_attribute.sql
-17
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@@ -1,17 +0,0 @@
-- Table: autobound_attribute
CREATE TABLE [autobound_attribute] (
[dio_id] int NOT NULL,
[sg_mx_primitive_id] smallint NOT NULL DEFAULT ((0)),
[gobject_id] int NOT NULL,
[mx_primitive_id] smallint NOT NULL,
[mx_attribute_id] smallint NOT NULL,
[element_index] smallint NOT NULL DEFAULT ((0)),
[attr_alias] nvarchar(329) NULL,
[xlate_rule_id] int NOT NULL DEFAULT ((0)),
CONSTRAINT [PK_autobound_attribute] PRIMARY KEY ([gobject_id], [mx_primitive_id], [mx_attribute_id], [element_index], [dio_id], [sg_mx_primitive_id], [dio_id], [sg_mx_primitive_id], [xlate_rule_id])
);
GO
ALTER TABLE [autobound_attribute] ADD FOREIGN KEY ([xlate_rule_id]) REFERENCES [autobind_translation_rule] ([xlate_rule_id]);
GO
gr/ddl/tables/client_control_class_link.sql
-9
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@@ -1,9 +0,0 @@
-- Table: client_control_class_link
CREATE TABLE [client_control_class_link] (
[gobject_id] int NOT NULL,
[file_id] int NULL,
[class_name] nvarchar(1024) NOT NULL,
CONSTRAINT [PK_client_control_class_link] PRIMARY KEY ([gobject_id])
);
GO
gr/ddl/tables/client_info.sql
-11
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@@ -1,11 +0,0 @@
-- Table: client_info
CREATE TABLE [client_info] (
[id] int NOT NULL,
[client_unique_identifier] nvarchar(4000) NOT NULL,
[client_name] nvarchar(64) NOT NULL,
[deployed_files_count] smallint NOT NULL,
[time_of_last_deployed_object_components] datetime NULL DEFAULT (getdate()),
[timestamp_of_last_synchronized] bigint NOT NULL DEFAULT ((0))
);
GO
gr/ddl/tables/control_index.sql
-16
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@@ -1,16 +0,0 @@
-- Table: control_index
CREATE TABLE [control_index] (
[entity_id] int NOT NULL,
[gobject_id] int NOT NULL,
[control_id] nvarchar(329) NULL,
[control_name] nvarchar(329) NOT NULL,
[control_description] nvarchar(2000) NULL,
[properties] nvarchar(-1) NULL,
[thumbnail] nvarchar(-1) NULL,
CONSTRAINT [PK_control_index] PRIMARY KEY ([gobject_id], [control_name], [gobject_id])
);
GO
ALTER TABLE [control_index] ADD FOREIGN KEY ([gobject_id]) REFERENCES [gobject] ([gobject_id]);
GO
gr/ddl/tables/data_type.sql
-9
View File
@@ -1,9 +0,0 @@
-- Table: data_type
CREATE TABLE [data_type] (
[mx_data_type] tinyint NOT NULL,
[description] varchar(30) NOT NULL,
[ow_data_type] varchar(10) NULL,
CONSTRAINT [PK_data_type] PRIMARY KEY ([mx_data_type])
);
GO
gr/ddl/tables/deleted_gobject.sql
-8
View File
@@ -1,8 +0,0 @@
-- Table: deleted_gobject
CREATE TABLE [deleted_gobject] (
[gobject_id] int NOT NULL DEFAULT ((0)),
[timestamp_of_delete] timestamp NOT NULL,
CONSTRAINT [PK_deleted_gobject] PRIMARY KEY ([timestamp_of_delete])
);
GO
gr/ddl/tables/deleted_ids.sql
-9
View File
@@ -1,9 +0,0 @@
-- Table: deleted_ids
CREATE TABLE [deleted_ids] (
[table_id] smallint NULL,
[deleted_id] int NOT NULL,
[deletion_timestamp] timestamp NOT NULL,
[deletion_time] datetime NULL
);
GO
gr/ddl/tables/deleted_visual_element.sql
-8
View File
@@ -1,8 +0,0 @@
-- Table: deleted_visual_element
CREATE TABLE [deleted_visual_element] (
[visual_element_name] nvarchar(329) NULL,
[visual_element_type] nvarchar(32) NULL,
[timestamp_of_delete] timestamp NOT NULL
);
GO
gr/ddl/tables/deleted_visual_element_version.sql
-13
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@@ -1,13 +0,0 @@
-- Table: deleted_visual_element_version
CREATE TABLE [deleted_visual_element_version] (
[gobject_id] int NOT NULL,
[package_id] int NOT NULL,
[mx_primitive_id] smallint NOT NULL,
[visual_element_name] nvarchar(329) NOT NULL,
[visual_element_type] nvarchar(32) NOT NULL,
[timestamp_of_delete] timestamp NOT NULL,
[visual_element_id] int NOT NULL,
CONSTRAINT [PK_deleted_visual_element_version] PRIMARY KEY ([gobject_id], [package_id], [timestamp_of_delete])
);
GO
gr/ddl/tables/deployed_file.sql
-19
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@@ -1,19 +0,0 @@
-- Table: deployed_file
CREATE TABLE [deployed_file] (
[deployed_file_id] int NOT NULL,
[file_id] int NOT NULL,
[node_name] nvarchar(256) NOT NULL,
[need_to_delete] int NOT NULL DEFAULT ((0)),
[is_package_deployed] bit NOT NULL,
[is_editor_deployed] bit NOT NULL,
[is_runtime_deployed] bit NOT NULL,
[is_browser_deployed] bit NOT NULL,
[file_version] nvarchar(50) NOT NULL DEFAULT (''),
[file_modified_time] nvarchar(50) NOT NULL DEFAULT (''),
CONSTRAINT [PK_deployed_file] PRIMARY KEY ([deployed_file_id], [file_id])
);
GO
ALTER TABLE [deployed_file] ADD FOREIGN KEY ([file_id]) REFERENCES [file_table] ([file_id]);
GO
gr/ddl/tables/deployed_intouch_viewapp.sql
-8
View File
@@ -1,8 +0,0 @@
-- Table: deployed_intouch_viewapp
CREATE TABLE [deployed_intouch_viewapp] (
[timestamp_of_deploy] bigint NOT NULL DEFAULT ((1)),
[gobject_id] int NOT NULL,
[deploy_file_transfering] bit NULL DEFAULT ((0))
);
GO
gr/ddl/tables/deployed_intouch_viewapp_visual_element_dependency.sql
-7
View File
@@ -1,7 +0,0 @@
-- Table: deployed_intouch_viewapp_visual_element_dependency
CREATE TABLE [deployed_intouch_viewapp_visual_element_dependency] (
[gobject_id] int NULL,
[visual_element_name] nvarchar(2000) NULL
);
GO
gr/ddl/tables/dynamic_attribute.sql
-25
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@@ -1,25 +0,0 @@
-- Table: dynamic_attribute
CREATE TABLE [dynamic_attribute] (
[gobject_id] int NOT NULL,
[package_id] int NOT NULL,
[mx_primitive_id] smallint NOT NULL,
[mx_attribute_id] smallint NOT NULL,
[attribute_name] nvarchar(329) NOT NULL,
[mx_data_type] smallint NOT NULL,
[is_array] bit NOT NULL,
[security_classification] smallint NOT NULL,
[mx_attribute_category] int NOT NULL,
[lock_type] int NOT NULL,
[mx_value] text(2147483647) NOT NULL,
[owned_by_gobject_id] int NOT NULL DEFAULT ((0)),
[original_lock_type] int NOT NULL DEFAULT ((0)),
[dynamic_attribute_type] smallint NOT NULL DEFAULT ((0)),
[bitvalues] smallint NOT NULL DEFAULT ((0)),
[dynamic_attribute_id] bigint NOT NULL,
CONSTRAINT [PK_dynamic_attribute] PRIMARY KEY ([gobject_id], [package_id], [mx_primitive_id], [mx_attribute_id], [gobject_id], [mx_primitive_id], [package_id], [gobject_id], [mx_primitive_id], [package_id], [gobject_id], [mx_primitive_id], [package_id])
);
GO
ALTER TABLE [dynamic_attribute] ADD FOREIGN KEY ([package_id]) REFERENCES [primitive_instance] ([package_id]);
GO
gr/ddl/tables/external_content_media_types.sql
-12
View File
@@ -1,12 +0,0 @@
-- Table: external_content_media_types
CREATE TABLE [external_content_media_types] (
[entity_id] int NOT NULL,
[media_type] nvarchar(255) NOT NULL,
[control_entity_id] int NOT NULL,
[uri_property_name] nvarchar(1023) NULL,
[media_type_property_name] nvarchar(1023) NULL,
[is_default] bit NULL,
CONSTRAINT [PK_external_content_media_types] PRIMARY KEY ([entity_id])
);
GO
gr/ddl/tables/feature.sql
-9
View File
@@ -1,9 +0,0 @@
-- Table: feature
CREATE TABLE [feature] (
[feature_id] int NOT NULL,
[feature_name] nvarchar(256) NOT NULL,
[feature_type] nvarchar(256) NOT NULL,
CONSTRAINT [PK_feature] PRIMARY KEY ([feature_id])
);
GO
gr/ddl/tables/feature_file_link.sql
-11
View File
@@ -1,11 +0,0 @@
-- Table: feature_file_link
CREATE TABLE [feature_file_link] (
[feature_id] int NOT NULL,
[file_id] int NOT NULL,
CONSTRAINT [PK_feature_file_link] PRIMARY KEY ([feature_id], [file_id], [feature_id], [file_id])
);
GO
ALTER TABLE [feature_file_link] ADD FOREIGN KEY ([file_id]) REFERENCES [file_table] ([file_id]);
GO
gr/ddl/tables/file_browserinfo_link.sql
-13
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@@ -1,13 +0,0 @@
-- Table: file_browserinfo_link
CREATE TABLE [file_browserinfo_link] (
[primitive_definition_id] int NOT NULL,
[file_id] int NOT NULL,
[assembly_strong_name] nvarchar(512) NOT NULL,
[assembly_type_name] nvarchar(256) NOT NULL,
CONSTRAINT [PK_file_browserinfo_link] PRIMARY KEY ([primitive_definition_id], [file_id], [file_id], [primitive_definition_id])
);
GO
ALTER TABLE [file_browserinfo_link] ADD FOREIGN KEY ([primitive_definition_id]) REFERENCES [primitive_definition] ([primitive_definition_id]);
GO
gr/ddl/tables/file_pending_update.sql
-11
View File
@@ -1,11 +0,0 @@
-- Table: file_pending_update
CREATE TABLE [file_pending_update] (
[file_id] int NOT NULL,
[node_name] nvarchar(256) NOT NULL,
CONSTRAINT [PK_file_pending_update] PRIMARY KEY ([file_id])
);
GO
ALTER TABLE [file_pending_update] ADD FOREIGN KEY ([file_id]) REFERENCES [file_table] ([file_id]);
GO
gr/ddl/tables/file_primitive_definition_link.sql
-15
View File
@@ -1,15 +0,0 @@
-- Table: file_primitive_definition_link
CREATE TABLE [file_primitive_definition_link] (
[primitive_definition_id] int NOT NULL,
[file_id] int NOT NULL,
[is_needed_for_package] bit NOT NULL DEFAULT ((0)),
[is_needed_for_runtime] bit NOT NULL DEFAULT ((0)),
[is_needed_for_editor] bit NOT NULL DEFAULT ((0)),
[is_needed_for_browser] bit NOT NULL DEFAULT ((0)),
CONSTRAINT [PK_file_primitive_definition_link] PRIMARY KEY ([primitive_definition_id], [file_id], [file_id], [primitive_definition_id])
);
GO
ALTER TABLE [file_primitive_definition_link] ADD FOREIGN KEY ([primitive_definition_id]) REFERENCES [primitive_definition] ([primitive_definition_id]);
GO
gr/ddl/tables/file_table.sql
-13
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@@ -1,13 +0,0 @@
-- Table: file_table
CREATE TABLE [file_table] (
[file_id] int NOT NULL,
[file_name] nvarchar(256) NOT NULL,
[vendor_name] nvarchar(256) NOT NULL,
[registration_type] int NOT NULL,
[subfolder] nvarchar(256) NOT NULL DEFAULT (''),
[file_version] nvarchar(50) NOT NULL DEFAULT (''),
[file_modified_time] nvarchar(50) NOT NULL DEFAULT (''),
CONSTRAINT [PK_file_table] PRIMARY KEY ([file_id])
);
GO

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