Jeff, Dave:

Jeff noted that the SUS ITMY SDF was reporting a difference for the HWWD STATE epics variable. This was due to the HWWD testing I did last Wednesday Link

The hardware watchdog (HWWD) is read out by the h1susitmy model via binary I/O. For a long period of time the unit was powered on but had its monitor cables disconnected. It was this state which was recorded in the safe.snap file. Last Wednesday, following the conclusion of my tests, I disconnected the input cables and then powered the unit down, which raised the SDF difference. Today I accepted the current STATE to clear the SDF difference.