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Auto: twincat-5.1 — IAlarmSource via TC3 EventLogger (gated, scaffold)

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Closes #316
This commit is contained in:
Joseph Doherty
2026-04-26 11:13:24 -04:00
parent 3babfb8a99
commit c88e0b6bed
13 changed files with 1238 additions and 7 deletions
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34
docs/Driver.TwinCAT.Cli.md
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@@ -217,3 +217,37 @@ in screen-recorded bug reports.
`--poll-only` polls go through the same cached-handle path as `read`, so
repeated polls of the same symbol carry only a 4-byte handle on the wire
rather than the full symbolic path.
### `alarms` (PR 5.1 / #316)
Stream TC3 EventLogger alarms via the driver's `IAlarmSource` bridge.
Subscribes against AMS port 110 (`AMSPORT_EVENTLOG`) on the same target,
prints each event with timestamp / source / severity / message until
Ctrl+C.
```powershell
# All alarms — every event the EventLogger surfaces
otopcua-twincat-cli alarms -n 192.168.1.40.1.1
# Filter by source — only events whose source name matches (case-insensitive)
otopcua-twincat-cli alarms -n 192.168.1.40.1.1 --source Conveyor1.MotorOverload
# Multiple sources — repeat the flag
otopcua-twincat-cli alarms -n 192.168.1.40.1.1 --source Conveyor1 --source Pump3
```
| Flag | Default | Purpose |
|---|---|---|
| `--source` | (none) | Optional source filter; repeat for multiple |
Output format (one line per event):
```
[HH:mm:ss.fff] <source> sev=<Low|Medium|High|Critical> type=<event-class> cond=<condition-id> "<message>"
```
The verb forces `EnableAlarms=true` on the underlying driver; the
default driver config keeps it off so deployments without an
EventLogger configured pay no cost. See
[`docs/drivers/TwinCAT.md` §Alarms](drivers/TwinCAT.md) for the
full bridge architecture and decode caveats.