power loss and auto reset SLC 503

mordred

Member
Join Date
Mar 2004
Location
Red Deer
Posts
1,892
Is there a way to set up an auto reset on the SLC 503 processor
to clear the power loss detection rather than using the keyswitch to clear the error? I realize the alarm is stored in the S registers. could using the S1/15 input for the first cycle detection be used to clear that fault?
 
Last edited:
Go to the Process Status File, Errors tab and Set S:1/8 to 1, then save and download. This should force the controller to clear any Major/Minor faults that happened when power was lost and put the CPU in REM Run on power-up. I believe the keyswitch has to stay in REM for this to work.
 

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