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Joseph Doherty c8a38bc57b DiffViewer refactor — 6-section plugin pattern + 1000-row cap. Closes task #156 (Phase 6.4 Stream C). Replaces the flat single-table rendering that mixed Namespace/DriverInstance/Equipment/Tag rows into one untyped list with a per-section-card layout that makes draft review actually scannable on non-trivial diffs. New DiffSection.razor reusable component encapsulates the per-section rendering — card header shows Title + Description + a three-badge summary (+added / −removed / ~modified plus a "no changes" grey badge when the section is empty) so operators can glance at a six-card page and see what areas of the draft actually shifted before drilling into any one table. Hard row-cap at DefaultRowCap=1000 per section lives inside the component so a pathological draft (e.g. 20k tags churned by a block rebuild) can't freeze the browser on render — excess rows are silently dropped with a yellow warning banner that surfaces "Showing the first 1000 of N rows" + a pointer to run sp_ComputeGenerationDiff directly for the full set. Body max-height: 400px + overflow-y: auto gives each section its own scroll region so one big section doesn't push the others off screen. DiffViewer.razor refactored to a static Sections table driving a single foreach that instantiates one DiffSection per known TableName. Sections listed in author-order (Namespace → DriverInstance → Equipment → Tag → UnsLine → NodeAcl) — six entries matching the task acceptance criterion. The first four correspond to what sp_ComputeGenerationDiff currently emits; the last two (UnsLine + NodeAcl) render as empty "no changes" cards today + will light up when the proc is extended (tracked in task #196 for NodeAcl; UnsLine proc extension is a natural follow-up since UnsImpactAnalyzer already tracks UNS moves). RowsFor(tableName) replaces the prior flat table — each section filters the overall DiffRow list by its TableName so the proc output format stays stable. Header-bar summary at the top of the page now reads "N rows across M of 6 sections" so operators see overall change weight at a glance before scanning. Two Razor-specific fixes landed along the way: loop variable renamed from section to sec because @section collides with the Razor section directive + trips RZ2005; helper method renamed from Group to RowsFor because the Razor generator gets confused by a parameter-flowing method whose name clashes with LINQ's Group extension (the source-gen output referenced TypeCheck<T> with no argument). Admin project builds 0 errors; Admin.Tests suite 76/76 (unchanged — the refactor is structural + no service-layer logic changed, so the existing DraftValidator + EquipmentService + AdminServicesIntegrationTests cover the consuming paths). No bUnit in this project so the cap behavior isn't unit-tested at the component level; DiffSection.OnParametersSet is small + deterministic (int counts + Take(RowCap)) + reviewed before ship.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-19 22:23:22 -04:00

docs

v2 release-readiness — blocker #3 closed; all three code-path blockers shut

2026-04-19 11:33:37 -04:00

Track Galaxy Platform and AppEngine runtime state via ScanState probes and proactively invalidate descendant variable quality on Stopped transitions so operators can detect a stopped runtime host before downstream clients read stale data and so the bridge delivers a uniform bad-quality signal instead of relying on MxAccess per-tag fan-out

2026-04-13 15:40:44 -04:00

lib

Migrate historian from SQL to aahClientManaged SDK and resolve all OPC UA Part 11 gaps

2026-04-06 16:38:00 -04:00

scripts

v2 release-readiness capstone — aggregate compliance runner + release-readiness dashboard

2026-04-19 10:32:21 -04:00

src

DiffViewer refactor — 6-section plugin pattern + 1000-row cap. Closes task #156 (Phase 6.4 Stream C). Replaces the flat single-table rendering that mixed Namespace/DriverInstance/Equipment/Tag rows into one untyped list with a per-section-card layout that makes draft review actually scannable on non-trivial diffs. New DiffSection.razor reusable component encapsulates the per-section rendering — card header shows Title + Description + a three-badge summary (+added / −removed / ~modified plus a "no changes" grey badge when the section is empty) so operators can glance at a six-card page and see what areas of the draft actually shifted before drilling into any one table. Hard row-cap at DefaultRowCap=1000 per section lives inside the component so a pathological draft (e.g. 20k tags churned by a block rebuild) can't freeze the browser on render — excess rows are silently dropped with a yellow warning banner that surfaces "Showing the first 1000 of N rows" + a pointer to run sp_ComputeGenerationDiff directly for the full set. Body max-height: 400px + overflow-y: auto gives each section its own scroll region so one big section doesn't push the others off screen. DiffViewer.razor refactored to a static Sections table driving a single foreach that instantiates one DiffSection per known TableName. Sections listed in author-order (Namespace → DriverInstance → Equipment → Tag → UnsLine → NodeAcl) — six entries matching the task acceptance criterion. The first four correspond to what sp_ComputeGenerationDiff currently emits; the last two (UnsLine + NodeAcl) render as empty "no changes" cards today + will light up when the proc is extended (tracked in task #196 for NodeAcl; UnsLine proc extension is a natural follow-up since UnsImpactAnalyzer already tracks UNS moves). RowsFor(tableName) replaces the prior flat table — each section filters the overall DiffRow list by its TableName so the proc output format stays stable. Header-bar summary at the top of the page now reads "N rows across M of 6 sections" so operators see overall change weight at a glance before scanning. Two Razor-specific fixes landed along the way: loop variable renamed from section to sec because @section collides with the Razor section directive + trips RZ2005; helper method renamed from Group to RowsFor because the Razor generator gets confused by a parameter-flowing method whose name clashes with LINQ's Group extension (the source-gen output referenced TypeCheck<T> with no argument). Admin project builds 0 errors; Admin.Tests suite 76/76 (unchanged — the refactor is structural + no service-layer logic changed, so the existing DraftValidator + EquipmentService + AdminServicesIntegrationTests cover the consuming paths). No bUnit in this project so the cap behavior isn't unit-tested at the component level; DiffSection.OnParametersSet is small + deterministic (int counts + Take(RowCap)) + reviewed before ship.

2026-04-19 22:23:22 -04:00

tests

Admin RedundancyTab — per-cluster read-only topology view. Closes the UI slice of task #149 (Phase 6.3 Stream E — Admin UI RedundancyTab + OpenTelemetry metrics + SignalR); the OpenTelemetry metrics + RoleChanged SignalR push are split into new follow-up task #198 because each is a structural add that deserves its own test matrix + NuGet-dep decision rather than riding this UI PR. New /clusters/{ClusterId} Redundancy tab slotted between ACLs and Audit in the existing ClusterDetail tab bar. Shows each ClusterNode row in the cluster with columns Node / Role (Primary green, Secondary blue, Standalone primary-blue badge) / Host / OPC UA port / ServiceLevel base / ApplicationUri (text-break so the long urn: doesn't blow out the table) / Enabled badge / Last seen (relative age via the same FormatAge helper as Hosts.razor, with a yellow "Stale" chip once LastSeenAt crosses the 30s threshold shared with HostStatusService.StaleThreshold — a missed heartbeat plus clock-skew buffer). Four summary cards above the table — total Nodes, Primary count, Secondary count, Stale count. Two guard-rail alerts: (a) red "No Primary or Standalone" when the cluster has no authoritative write target (all rows are Secondaries — read-only until one is promoted by the server-side RedundancyCoordinator apply-lease flow); (b) red "Split-brain" when >1 Primary exists — apply-lease enforcement at the coordinator level should have made this impossible, so the alert implies a hand-edited DB row + an investigation. New ClusterNodeService with ListByClusterAsync (ordered by ServiceLevelBase descending so Primary rows with higher base float to the top) + a static IsStale predicate matching HostStatusService's 30s convention. DI-registered alongside the existing scoped services in Program.cs. Writes (role swap, enable/disable) are deliberately absent from the service — they go through the RedundancyCoordinator apply-lease flow on the server side + direct DB mutation from Admin would race with it. New ClusterNodeServiceTests covering IsStale across null/recent/old LastSeenAt + ListByClusterAsync ordering + cluster filter. 4/4 new tests passing; full Admin.Tests suite 76/76 (was 72 before this PR, +4). Admin project builds 0 errors. Task #198 captures the deferred work: (1) OpenTelemetry Meter for primary/secondary/stale counts + role_transition counter with from/to/node tags + OTLP exporter config; (2) RoleChanged SignalR push — extend FleetStatusPoller to detect RedundancyRole changes on ClusterNode rows + emit a RoleChanged hub message so the RedundancyTab refreshes instantly instead of on-page-load polling.

2026-04-19 22:14:25 -04:00

_p54.json

Phase 3 PR 56 -- Siemens S7-1500 pymodbus profile + smoke integration test. Adds tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.IntegrationTests/Pymodbus/s7_1500.json modelling the SIMATIC S7-1500 + MB_SERVER default deployment documented in docs/v2/s7.md: DB1.DBW0 = 0xABCD fingerprint marker (operators reserve this so clients can verify they're talking to the right DB), scratch HR range 200..209 for write-roundtrip tests mirroring dl205.json + standard.json, Float32 1.5f at HR[100..101] in ABCD word order (high word first -- OPPOSITE of DL260 CDAB), Int32 0x12345678 at HR[300..301] in ABCD. Also seeds a coil at bit-addr 400 (= cell 25 bit 0) and a discrete input at bit-addr 500 (= cell 31 bit 0) so future S7-specific tests for FC01/FC02 have stable markers. shared blocks=true to match the proven dl205.json pattern (pymodbus's bits/uint16 cells coexist cleanly when addresses don't collide). Write list references cells (0, 25, 100-101, 200-209, 300-301), not bit addresses -- pymodbus's write-range entries are cell-indexed, not bit-indexed. Adds tests/ZB.MOM.WW.OtOpcUa.Driver.Modbus.IntegrationTests/S7/ directory with S7_1500Profile.cs (mirrors DL205Profile pattern: SmokeHoldingRegister=200, SmokeHoldingValue=4321, BuildOptions tags + probe-disabled + 2s timeout) and S7_1500SmokeTests.cs (single fact S7_1500_roundtrip_write_then_read_of_holding_register that writes SmokeHoldingValue then reads it back, asserting both write status 0 and read status 0 + value equality). Gates on MODBUS_SIM_PROFILE=s7_1500 so the test skips cleanly against other profiles. csproj updated to copy S7/** to test output as PreserveNewest (pattern matching DL205/**). Pymodbus/serve.ps1 ValidateSet extended from {standard,dl205} to {standard,dl205,s7_1500,mitsubishi} -- mitsubishi.json lands in PR 58 but the validator slot is claimed now so the serve.ps1 diff is one line in this PR and zero lines in future PRs. Verified end-to-end: smoke test 1/1 passes against the running pymodbus s7_1500 profile (localhost:5020 FC06 write of 4321 at HR[200] + FC03 read back). 143/143 Modbus.Tests pass, no regression in driver code because this PR is purely test-asset. Per-quirk S7 integration tests (ABCD word order default, FC23 IllegalFunction, MB_SERVER STATUS 0x8383 behaviour, port-per-connection semantics) land in PR 57+.

2026-04-18 22:57:03 -04:00

_p55.json

2026-04-18 22:57:03 -04:00

.gitignore

Gitignore .local/ directory for dev-only secrets like the Galaxy.Host shared secret. Created during the PR 38 / install-services workflow to keep per-install secrets out of the repo.

2026-04-18 19:15:13 -04:00

CLAUDE.md

Phase 0 — mechanical rename ZB.MOM.WW.LmxOpcUa.* → ZB.MOM.WW.OtOpcUa.*

2026-04-17 13:57:47 -04:00

export-clean-copy.bat

Add clean export script for distributing repo without git history

2026-04-01 03:31:25 -04:00

mxaccess_documentation.md

Implement LmxOpcUa server — all 6 phases complete

2026-03-25 05:55:27 -04:00

README.md

Extract historian into a runtime-loaded plugin so hosts without the Wonderware SDK can run with Historian.Enabled=false

2026-04-12 15:16:07 -04:00

runtimestatus.md

2026-04-13 15:40:44 -04:00

service_info.md

Add Galaxy platform scope filter so multi-node deployments can restrict the OPC UA address space to only objects hosted by the local platform, reducing memory footprint and MXAccess subscription count from the full Galaxy (49 objects / 4206 attributes) down to the local subtree (3 objects / 386 attributes on the dev Galaxy).

2026-04-16 00:39:11 -04:00

session.dat

Implement LmxOpcUa server — all 6 phases complete

2026-03-25 05:55:27 -04:00

StyleGuide.md

Extract historian into a runtime-loaded plugin so hosts without the Wonderware SDK can run with Historian.Enabled=false

2026-04-12 15:16:07 -04:00

ZB.MOM.WW.OtOpcUa.slnx

FOCAS PR 1 — Scaffolding + Core (FocasDriver skeleton + address parser + stub client). New Driver.FOCAS project for Fanuc CNC controllers (FS 0i/16i/18i/21i/30i/31i/32i/Series 35i/Power Mate i) talking via the Fanuc FOCAS/2 protocol. No NuGet reference to a FOCAS library — FWLIB (Fwlib32.dll) is Fanuc-proprietary + per-customer licensed + cannot be legally redistributed, so the driver is designed from the start to accept an IFocasClient supplied by the deployment side. Default IFocasClientFactory is UnimplementedFocasClientFactory which throws with a clear deployment-docs pointer at Create time so misconfigured servers fail fast rather than mysteriously hanging. Matches the pattern other drivers use for swappable wire layers (Modbus IModbusTransport, AbCip IAbCipTagFactory, TwinCAT ITwinCATClientFactory) — but uniquely, FOCAS ships without a production factory because of licensing. FocasHostAddress parses focas://{host}[:{port}] canonical form with default port 8193 (Fanuc-reserved FOCAS Ethernet port). Default-port stripping on ToString for roundtrip stability. Case-insensitive scheme. Rejects wrong scheme, empty body, invalid port, non-numeric port. FocasAddress handles the three addressing spaces a FOCAS driver touches — PMC (letter + byte + optional bit, X/Y for IO, F/G for PMC-CNC signals, R for internal relay, D for data table, C for counter, K for keep relay, A for message display, E for extended relay, T for timer, with .N bit syntax 0-7), CNC parameters (PARAM:n for a parameter number, PARAM:n/N for bit 0-31 of a parameter), macro variables (MACRO:n). Rejects unknown PMC letters, negative numbers, out-of-range bits (PMC 0-7, parameter 0-31), non-numeric fragments. FocasDataType — Bit / Byte / Int16 / Int32 / Float32 / Float64 / String covering the atomic types PMC reads + CNC parameters + macro variables return. ToDriverDataType widens to the Int32/Float32/Float64/Boolean/String surface. FocasStatusMapper covers the FWLIB EW_* return-code family documented in the FOCAS/1 + FOCAS/2 references — EW_OK=0, EW_FUNC=1 → BadNotSupported, EW_OVRFLOW=2/EW_NUMBER=3/EW_LENGTH=4 → BadOutOfRange, EW_PROT=5/EW_PASSWD=11 → BadNotWritable, EW_NOOPT=6/EW_VERSION=-9 → BadNotSupported, EW_ATTRIB=7 → BadTypeMismatch, EW_DATA=8 → BadNodeIdUnknown, EW_PARITY=9 → BadCommunicationError, EW_BUSY=-1 → BadDeviceFailure, EW_HANDLE=-8 → BadInternalError, EW_UNEXP=-10/EW_SOCKET=-16 → BadCommunicationError. IFocasClient + IFocasClientFactory abstraction — ConnectAsync, IsConnected, ReadAsync returning (value, status) tuple, WriteAsync returning status, ProbeAsync for IHostConnectivityProbe. Deployment supplies the real factory; driver assembly stays licence-clean. FocasDriverOptions + FocasDeviceOptions + FocasTagDefinition + FocasProbeOptions — one instance supports N CNCs, tags cross-key by HostAddress + use canonical FocasAddress strings. FocasDriver implements IDriver only (PRs 2-3 add read/write/discover/subscribe/probe/resolver). InitializeAsync parses each device HostAddress + fails fast on malformed strings → Faulted health. 65 new unit tests in FocasScaffoldingTests covering — 5 valid host forms + 8 invalid + default-port-strip ToString, 12 valid PMC addresses across all 11 canonical letters + 3 parameter forms with + without bit + 2 macro forms, 10 invalid address shapes, canonical roundtrip theory, data-type mapping theory, FWLIB EW_* status mapping theory (9 codes + unknown → generic), DriverType, multi-device Initialize + address parsing, malformed-address fault, shutdown, default factory throws NotSupportedException with deployment pointer + Fwlib32.dll mention. Total project count 31 src + 20 tests; full solution builds 0 errors. Other drivers untouched.

2026-04-19 19:47:52 -04:00

README.md

LmxOpcUa

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.

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)    |
                        +----------------+     +-------------------+

Contained Name vs Tag Name

Browse Path (contained names)	Runtime Reference (tag name)
`TestMachine_001/DelmiaReceiver/DownloadPath`	`DelmiaReceiver_001.DownloadPath`
`TestMachine_001/MESReceiver/MoveInBatchID`	`MESReceiver_001.MoveInBatchID`

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

dotnet restore ZB.MOM.WW.LmxOpcUa.slnx
dotnet build src/ZB.MOM.WW.LmxOpcUa.Host
dotnet run --project src/ZB.MOM.WW.LmxOpcUa.Host

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.

Install as Windows Service

cd src/ZB.MOM.WW.LmxOpcUa.Host/bin/Debug/net48
ZB.MOM.WW.LmxOpcUa.Host.exe install
ZB.MOM.WW.LmxOpcUa.Host.exe start

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

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

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

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

# 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

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 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

Documentation

Server

Component	Description
OPC UA Server	Endpoint, sessions, security policy, server lifecycle
Address Space	Hierarchy nodes, variable nodes, primitive grouping, NodeId scheme
Galaxy Repository	SQL queries, deployed package chain, change detection
MXAccess Bridge	STA thread, COM interop, subscriptions, reconnection
Data Type Mapping	Galaxy to OPC UA types, arrays, security classification
Read/Write Operations	Value reads, writes, access level enforcement, array element writes
Subscriptions	Ref-counted MXAccess subscriptions, data change dispatch
Alarm Tracking	AlarmConditionState nodes, InAlarm monitoring, event reporting
Historical Data Access	Historian data source, HistoryReadRaw, HistoryReadProcessed
Incremental Sync	Diff computation, subtree teardown/rebuild, subscription preservation
Configuration	appsettings.json binding, feature flags, validation
Status Dashboard	HTTP server, health checks, metrics reporting
Service Hosting	TopShelf, startup/shutdown sequence, error handling
Security	Transport security profiles, certificate trust, production hardening
Redundancy	Non-transparent warm/hot redundancy, ServiceLevel, paired deployment

Client

Component	Description
Client CLI	Connect, browse, read, write, subscribe, historyread, alarms, redundancy commands
Client UI	Avalonia desktop client: browse, subscribe, alarms, history, write values

Reference

Galaxy Repository Queries — SQL queries for hierarchy, attributes, and change detection
Data Type Mapping — Galaxy to OPC UA type mapping with security classification

License

Internal use only.