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docs(historian): TCP transport

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This commit is contained in:
Joseph Doherty
2026-06-12 12:02:50 -04:00
parent ce25581596
commit 6d5fc35747
3 changed files with 73 additions and 26 deletions
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docs/AlarmHistorian.md
+12 -2
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@@ -176,9 +176,16 @@ When `Enabled` is `false` (the default), `AddAlarmHistorian` registers
"AlarmHistorian": {
"Enabled": true,
"DatabasePath": "C:\\ProgramData\\OtOpcUa\\alarmhistorian.db",
"PipeName": "\\\\.\\pipe\\wonderware-historian",
"SharedSecret": "<token from historian sidecar config>",
"BatchSize": 100
},
"Historian": {
"Wonderware": {
"Host": "localhost",
"Port": 32569,
"UseTls": false,
"ServerCertThumbprint": ""
}
}
}
```
@@ -187,9 +194,12 @@ When `Enabled` is `false` (the default), `AddAlarmHistorian` registers
|---|---|---|---|
| `Enabled` | bool | `false` | Enable the real SQLite + Wonderware sink. `false` → `NullAlarmHistorianSink`. |
| `DatabasePath` | string | — | Absolute path to the SQLite queue file. Created on first use (WAL mode). Required when `Enabled`. |
| `PipeName` | string | — | Named-pipe path for the Wonderware Historian sidecar IPC channel. Required when `Enabled`. |
| `SharedSecret` | string | — | Shared secret token the sidecar expects on every connection. Required when `Enabled`. |
| `BatchSize` | int | `100` | Max rows per drain cycle handed to `IAlarmHistorianWriter.WriteBatchAsync`. |
| `Historian:Wonderware:Host` | string | `localhost` | DNS name or IP of the machine running the historian sidecar. |
| `Historian:Wonderware:Port` | int | `32569` | TCP port the sidecar listens on (`OTOPCUA_HISTORIAN_TCP_PORT`). |
| `Historian:Wonderware:UseTls` | bool | `false` | Wrap the TCP stream in TLS before the Hello handshake. |
| `Historian:Wonderware:ServerCertThumbprint` | string | — | Optional SHA-1 thumbprint to pin the sidecar's TLS server certificate. Leave empty to use normal CA-chain validation. |
> Dev and docker-dev deployments leave `Enabled` unset (defaults to `false`) so alarm transitions historize to nowhere unless a historian sidecar is present.