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lmxopcua/src/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriverOptions.cs
Joseph Doherty 60b8d6f2d0 AB CIP PR 9-12 — Per-PLC-family profile tests + GuardLogix safety-tag support. Consolidates PRs 9/10/11/12 from the plan (ControlLogix / CompactLogix / Micro800 / GuardLogix integration suites) into a single PR because the per-family work that actually ships without a live ab_server binary is profile-metadata assertion + unit-level driver-option binding. Per-family integration tests that require a running simulator are deferred to the ab_server-CI follow-up already tracked from PR 3 (download prebuilt Windows binary as GitHub release asset). ControlLogix — baseline profile asserted (controllogix attribute, 4002 LFO ConnectionSize, 1,0 default path, request-packing + connected-messaging, 4000B max fragment). CompactLogix — narrower 504 ConnectionSize for 5069-L3x safety, 500B max fragment, lib attribute compactlogix which libplctag maps to the ControlLogix family internally but via our profile chain we surface it as a distinct knob so future quirk handling (5069 narrow-window regression cases) hangs off the compactlogix attribute. Micro800 — empty CIP path for no-backplane routing, 488B ConnectionSize, 484B fragment cap, request packing + connected messaging both disabled (most models reject Forward_Open), micro800 lib attribute. Test asserts the driver correctly parses an ab://192.168.1.20/ host address with empty path + forwards the empty path through AbCipTagCreateParams so libplctag sees the unconnected-only configuration. GuardLogix — wire protocol identical to ControlLogix (safety partition is a per-tag concern, not a wire-layer distinction) so profile defaults match ControlLogix. New AbCipTagDefinition.SafetyTag field — when true, the driver forces SecurityClassification.ViewOnly in discovery regardless of the Writable flag, and IWritable rejects the write upfront with BadNotWritable. Matches the Rockwell safety-partition isolation model where non-safety-task writes to safety tags would be rejected by the PLC anyway — surfacing the intent at the driver surface prevents wasted wire round-trips + gives Admin UI users a correct ViewOnly rendering. 14 new unit tests in AbCipPlcFamilyTests covering — ControlLogix profile defaults + correct profile selection at Initialize, CompactLogix narrower-than-ControlLogix ConnectionSize + fragment cap, Micro800 empty path parses + SupportsConnectedMessaging=false + SupportsRequestPacking=false + read forwards empty path + micro800 attribute through to libplctag, GuardLogix wire-protocol parity with ControlLogix, GuardLogix safety tag surfaces as ViewOnly in discovery even when Writable=true, GuardLogix safety-tag write rejected with BadNotWritable even when Writable=true, ForFamily theory (4 families → correct libplctag attribute). Total AbCip unit tests now 161/161 passing (+14 from PR 8's 147). Modbus + other drivers untouched; full solution builds 0 errors. PR 13 (IAlarmSource via tag-projected ALMA/ALMD blocks) remains deferred per the plan — feature-flagged pattern not needed before go-live.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 17:18:51 -04:00

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namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip;
/// <summary>
/// AB CIP / EtherNet-IP driver configuration, bound from the driver's <c>DriverConfig</c>
/// JSON at <c>DriverHost.RegisterAsync</c>. One instance supports N devices (PLCs) behind
/// the same driver; per-device routing is keyed on <see cref="AbCipDeviceOptions.HostAddress"/>
/// via <c>IPerCallHostResolver</c>.
/// </summary>
/// <remarks>
/// Per v2 plan decisions #11 (libplctag), #41 (AbCip vs AbLegacy split), #143144 (per-call
/// host resolver + resilience keys), #144 (bulkhead keyed on <c>(DriverInstanceId, HostName)</c>).
/// </remarks>
public sealed class AbCipDriverOptions
{
/// <summary>
/// PLCs this driver instance talks to. Each device contributes its own <see cref="AbCipHostAddress"/>
/// string as the <c>hostName</c> key used by resilience pipelines and the Admin UI.
/// </summary>
public IReadOnlyList<AbCipDeviceOptions> Devices { get; init; } = [];
/// <summary>Pre-declared tag map across all devices — AB discovery lands in PR 5.</summary>
public IReadOnlyList<AbCipTagDefinition> Tags { get; init; } = [];
/// <summary>Per-device probe settings. Falls back to defaults when omitted.</summary>
public AbCipProbeOptions Probe { get; init; } = new();
/// <summary>
/// Default libplctag call timeout applied to reads/writes/discovery when the caller does
/// not pass a more specific value. Matches the Modbus driver's 2-second default.
/// </summary>
public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(2);
}
/// <summary>
/// One PLC endpoint. <see cref="HostAddress"/> must parse via
/// <see cref="AbCipHostAddress.TryParse"/>; misconfigured devices fail driver
/// initialization rather than silently connecting to nothing.
/// </summary>
/// <param name="HostAddress">Canonical <c>ab://gateway[:port]/cip-path</c> string.</param>
/// <param name="PlcFamily">Which per-family profile to apply. Determines ConnectionSize,
/// request-packing support, unconnected-only hint, and other quirks.</param>
/// <param name="DeviceName">Optional display label for Admin UI. Falls back to <see cref="HostAddress"/>.</param>
public sealed record AbCipDeviceOptions(
string HostAddress,
AbCipPlcFamily PlcFamily = AbCipPlcFamily.ControlLogix,
string? DeviceName = null);
/// <summary>
/// One AB-backed OPC UA variable. Mirrors the <c>ModbusTagDefinition</c> shape.
/// </summary>
/// <param name="Name">Tag name; becomes the OPC UA browse name and full reference.</param>
/// <param name="DeviceHostAddress">Which device (<see cref="AbCipDeviceOptions.HostAddress"/>) this tag lives on.</param>
/// <param name="TagPath">Logix symbolic path (controller or program scope).</param>
/// <param name="DataType">Logix atomic type, or <see cref="AbCipDataType.Structure"/> for UDT-typed tags.</param>
/// <param name="Writable">When <c>true</c> and the tag's ExternalAccess permits writes, IWritable routes writes here.</param>
/// <param name="WriteIdempotent">Per plan decisions #44#45, #143 — safe to replay on write timeout. Default <c>false</c>.</param>
/// <param name="Members">For <see cref="AbCipDataType.Structure"/>-typed tags, the declared UDT
/// member layout. When supplied, discovery fans out the UDT into a folder + one Variable per
/// member (member TagPath = <c>{tag.TagPath}.{member.Name}</c>). When <c>null</c> on a Structure
/// tag, the driver treats it as a black-box and relies on downstream configuration to address
/// members individually via dotted <see cref="AbCipTagPath"/> syntax. Ignored for atomic types.</param>
/// <param name="SafetyTag">GuardLogix safety-partition tag hint. When <c>true</c>, the driver
/// forces <c>SecurityClassification.ViewOnly</c> on discovery regardless of
/// <paramref name="Writable"/> — safety tags can only be written from the safety task of a
/// GuardLogix controller; non-safety writes violate the safety-partition isolation and are
/// rejected by the PLC anyway. Surfaces the intent explicitly instead of relying on the
/// write attempt failing at runtime.</param>
public sealed record AbCipTagDefinition(
string Name,
string DeviceHostAddress,
string TagPath,
AbCipDataType DataType,
bool Writable = true,
bool WriteIdempotent = false,
IReadOnlyList<AbCipStructureMember>? Members = null,
bool SafetyTag = false);
/// <summary>
/// One declared member of a UDT tag. Name is the member identifier on the PLC (e.g. <c>Speed</c>,
/// <c>Status</c>), DataType is the atomic Logix type, Writable/WriteIdempotent mirror
/// <see cref="AbCipTagDefinition"/>. Declaration-driven — the real CIP Template Object reader
/// (class 0x6C) that would auto-discover member layouts lands as a follow-up PR.
/// </summary>
public sealed record AbCipStructureMember(
string Name,
AbCipDataType DataType,
bool Writable = true,
bool WriteIdempotent = false);
/// <summary>Which AB PLC family the device is — selects the profile applied to connection params.</summary>
public enum AbCipPlcFamily
{
ControlLogix,
CompactLogix,
Micro800,
GuardLogix,
}
/// <summary>
/// Background connectivity-probe settings. Enabled by default; the probe reads a cheap tag
/// on the PLC at the configured interval to drive <see cref="Core.Abstractions.IHostConnectivityProbe"/>
/// state transitions + Admin UI health status.
/// </summary>
public sealed class AbCipProbeOptions
{
public bool Enabled { get; init; } = true;
public TimeSpan Interval { get; init; } = TimeSpan.FromSeconds(5);
public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(2);
/// <summary>
/// Tag path used for the probe. If null, the driver attempts to read a default
/// system tag (PR 8 wires this up — the choice is family-dependent, e.g.
/// <c>@raw_cpu_type</c> on ControlLogix or a user-configured probe tag on Micro800).
/// </summary>
public string? ProbeTagPath { get; init; }
}