Field Power Off Condition

What does FieldPowerOff mean?

This diagnostic indicates a field power off condition exists on the module or a specific test point. It signifies a loss of external power supplied to the module's I/O terminals, which powers the connected field devices. The tag automatically resets to 0 when the condition is removed.

• Loss of 24VDC field power supply to the module's I/O terminals
• Disconnected or damaged wiring for the field power supply
• Tripped circuit breaker or blown fuse in the field power supply circuit

Click steps to track your progress.

1. 1

   Measure the field power supply voltage at the module's designated field power terminals — expect 24VDC.

2. 2

   Check the status of the circuit breaker or fuse protecting the field power supply circuit.

3. 3

   Verify the integrity and connection of all field power wiring at the module and the power supply source.