FRS9371

The CDS alarms system status is now shown on the CDS Overview MEDM. The attached snapshots show the system when there are no alarms, and when two test alarms were raised.

Clicking on the "CDS ALARM" button on the overview opens the alarm MEDM.

Details:

The locklossalert EPICS IOC was modified to provide, as EPICS PVs, the ALARMS GPS time, the number of active alarms, and the channels which are in alarm.

locklossalert and alarms both run on cdslogin, and so a temporary file is used for the interprocess communication. Alarms updates the file on the minute and LLA reads the file at the 30 second mark.  If the temporary file stops being updated, the oveview button will turn magenta to indicate a stopped service.