You can enable overcurrent diagnostics for:
Outputs in any configuration
Inputs configured with test pulses
When the current on the configured channel exceeds module specifications, the channel de-energizes and the User Program returns a fault on DOn.OvercurrentFault or DIn.OvercurrentFault.
You can use overcurrent faults in two ways:
You check the Fail-safe box for DOn.OvercurrentFault or DIn.OvercurrentFault. If an overcurrent fault occurs, the module will go into Fail-safe Mode.
You can use DOn.OvercurrentFault or DIn.OvercurrentFault in transition logic on the state machine diagram. If an overcurrent fault occurs, the User Program will transition to a user-configured state. The digital output channel on which the fault occurred will de-energize. You must cycle Vsup power to the module to re-energize the channel.