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Detects a digital fault between a monitored input (In) slot, and a status input (Status) slot. Faults are detected by comparing In slot value against the Status slot value.
The In slot monitors the state commanded by the program. The Status slot monitors the actual state or feedback. Two types of faults are detected: RunFault and StopFault.
StopFault ►A StopFault is detected when the In slot is False indicating that the program is commanding the device to stop, and the Status slot is True indicating that the device is running. StopFault indicates an incorrect running state.
RunFault ► A RunFault is detected when the In slot is True indicating that the program is commanding the device to run and the Status slot is False indicating that the device is not running. RunFault indicates an incorrect stopped state.