800XA controller power failure
We are running ABB PM865 800XA based ESd system at our facility. The current architecture calls for connectivity of Two controllers controlling two different station. But both are connected to common F&G system via MMS tags.
Day before yesterday due to damage of electrical cable Controller#2 power failure occured and no alarms were generated regarding F&G system by Controller#1. MMS tags retained their last known values, this is a concern as cetain tripping are also shared via MMS as cuses are on controller 2 and trip action are initiated by controller 1.
can somebody guide me as to how to lookup this matter and resolve the isuue.
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