Field Power (SA Power) Loss Detection
The Field Power Loss Detection feature monitors for the loss of field-side power on the
SA power bus. It has a corresponding channel level tag that can be examined in the user
program if a fault occurs. When field power to the module is lost, the channel level
field power loss bit and fault bit are set for all channels and sent to the
controller.
IMPORTANT:
When SA power drops below 10V, it is
possible that you may encounter a rise in the analog input data. You can use the
Rate Alarm to monitor the data change rate and discard the input data when Rate
Alarm is set.
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