jeffrey.kissel@LIGO.ORG - posted 07:50, Tuesday 02 October 2018 - last comment - 10:11, Tuesday 02 October 2018(44275)
SDF Differences for Models getting Booted Today
The following models / PLCs are planned to be booted today and have differences against their settings definitions file (SDF).
OAF
ASC
CS ECAT PLC2
CS ECAT PLC3
CS ECAT PLC4
EY ECAT PLC2
EX ECAT PLC2
I've screen captured those differences below. For those whom are doing the booting (Jenne, Jeff, Dave, Patrick) try to make sure you've reconciled these changes BEFORE you get started with boots. For the record, the IFO ws in the DOWN state when these SDFs were captured. It also appears as though the entire front-end world has crashed last night, but that does not seem to be affecting the reporting of differences in settings.
We also plan to boot these processes, but they don't have any differences with there current reference file (safe)
CAL EY
CAL CS
I, finally, attach a screen cap of the SDF overview.
Images attached to this report
Comments related to this report
ECAT settings don't come back up exactly the same after PLC restart. See attached screenshots of ECAT CS PLC2 and PLC4 after Patrick finished his prep work for TwinCAT 3 this morning in which he had to restart all IFO-related PLCs. Compare these agains the above screenshots taken before the boot.
Images attached to this comment
The TwinCAT system saves its values once minute. After a reboot it will restore to the last set point automatically—in most cases. If the code was changed significantly, it may choose to ignore the old settings and start fresh with all zeroes. The above screens indicate the former, where the settings were restored to the last settings, but probably the sdf was and is outdated. TwinCAT will never use an EPICS/SDF saverestore, this has to be done by a user.