We recently had a situation where a ControlLogix L71 processor appeared to automatically switch from Run to Program mode. The keyswitch was in the Remote position at the time.
There was a recent Energy Storage Module Fault in the fault log but this is classified as a Minor Fault and as far as I know that would not switch the processor to Program.
Excluding switching the mode with the keyswitch or RSLogix, what conditions other than a Major Fault could cause the processor to switch to Program mode?
There was a recent Energy Storage Module Fault in the fault log but this is classified as a Minor Fault and as far as I know that would not switch the processor to Program.
Excluding switching the mode with the keyswitch or RSLogix, what conditions other than a Major Fault could cause the processor to switch to Program mode?