At 19:58 Fri 22 Dec 2023 the h1hwsex computer went down. This caused two issues:
- EDC was disconnected from the 84 HWS_ETMX channels
- h1tcshwssdf slow_controls SDF had disconnected channels
Camilla has confirmed that the HWS_ETMX camera is not needed over the break.
My HWS camera control code had put this camera into external_trigger mode when H1 locked early Friday morning, it is still in this mode, log entry:
- Fri 22Dec2023 04:12:04: Turned camera OFF
To make EDC and SDF green again, I have started a simulation HWS_ETMX IOC on cdsioc0, similar to what we were already doing for HWS_ETMY.
The simulation has all of its PVs set with VAL=0.0 except for those channels with non-zero values in the OBSERVE.snap and safe.snap SDF files. This ensures the SDF diff count is zero.
To get this going quickly I am running it on cdsioc0 as user ioc in a tmux session. Later I'll work on getting it under systemd control.