I'm just going to guess, but it sounds like the power supply that feeds the 24 and 5
VDC is going bad. I've seen this before on many solid state units, and if the power rectification is done on the board itself, you will need an entire new ASILOG board. I cannot recall off of the top of my head whether the power supply is internal to the board or external.
One other note-hopefully it is the ASILOG board that is bad and it hasn't affected the GCIO360, which is where all of the parameters are stored...
