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Resolve DA, A&C, and security spec gaps with ServerCapabilities, alarm methods, and modern profiles

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Add ServerCapabilities/OperationLimits node, enable diagnostics, add OnModifyMonitoredItemsComplete
override for DA compliance. Wire shelving, enable/disable, confirm, and addcomment handlers on
alarm conditions with LocalTime/Quality event fields for Part 9 compliance. Add Aes128/Aes256
security profiles, X.509 certificate authentication, and AUDIT-prefixed auth logging. Fix flaky
probe monitor test. Update docs for all changes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-04-06 22:02:05 -04:00
parent 41f0e9ec4c
commit 6d47687573
12 changed files with 345 additions and 20 deletions
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docs/OpcUaServer.md
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@@ -95,8 +95,23 @@ On startup, `OpcUaServerHost.StartAsync` calls `CheckApplicationInstanceCertific
`LmxOpcUaServer` inherits from the OPC Foundation `StandardServer` base class and overrides two methods:
- **`CreateMasterNodeManager`** -- Instantiates `LmxNodeManager` with the Galaxy namespace URI, the `IMxAccessClient` for runtime I/O, performance metrics, and an optional `HistorianDataSource`. The node manager is wrapped in a `MasterNodeManager` with no additional core node managers.
- **`OnServerStarted`** -- Configures redundancy, history capabilities, and server capabilities at startup. Called after the server is fully initialized.
- **`LoadServerProperties`** -- Returns server metadata: manufacturer `ZB MOM`, product `LmxOpcUa Server`, and the assembly version as the software version.
### ServerCapabilities
`ConfigureServerCapabilities` populates the `ServerCapabilities` node at startup:
- **ServerProfileArray** -- `StandardUA2017`
- **LocaleIdArray** -- `en`
- **MinSupportedSampleRate** -- 100ms
- **MaxBrowseContinuationPoints** -- 100
- **MaxHistoryContinuationPoints** -- 100
- **MaxArrayLength** -- 65535
- **MaxStringLength / MaxByteStringLength** -- 4MB
- **OperationLimits** -- 1000 nodes per Read/Write/Browse/RegisterNodes/TranslateBrowsePaths/MonitoredItems/HistoryRead; 0 for MethodCall/NodeManagement/HistoryUpdate (not supported)
- **ServerDiagnostics.EnabledFlag** -- `true` (SDK tracks session/subscription counts automatically)
### Session tracking
`LmxOpcUaServer` exposes `ActiveSessionCount` by querying `ServerInternal.SessionManager.GetSessions().Count`. `OpcUaServerHost` surfaces this for status reporting.