A PLC input can show the correct cross-reference while the associated circuit-breaker contact remains absent beside the power-device symbol. This indicates that the contact association exists; the unresolved issue is how the parent device displays its assigned contacts.
Confirmed symptom
The schematic contains a circuit breaker with an auxiliary contact assigned to a PLC input. The PLC-input side resolves the cross-reference correctly, but the corresponding contact is not represented beside the circuit breaker in the power circuit.
Configure the mirrored contact display
Open the properties of the parent device—the element whose properties include the contact-display controls—and select the display tab. Use the contact-mirror button in the lower-right area to configure how the assigned contact is represented.
- Open the parent device properties.
- Select the display tab.
- Locate the contact-mirror control in the lower-right area.
- Choose the required contact representation and apply the change.
Resolve the device-type ambiguity
The available guidance refers to coil properties, while the reported parent device is a circuit breaker. If the circuit-breaker symbol does not expose the stated display control, verify that the auxiliary contact and parent symbol belong to the same device definition and inspect the parent function that owns the contact association. Do not replace or recreate the contact while its PLC cross-reference already resolves correctly.
Verify the result
Confirm that the contact now appears beside the circuit breaker and that the existing PLC-input cross-reference remains correct. If the mirror remains absent, recheck the selected parent function and the contact assignment before changing the PLC reference.
FAQ
Why does the PLC input show a cross-reference but the circuit breaker does not show the contact?
The contact association is resolving at the PLC input, but the parent device's mirrored-contact display has not been configured or is being edited through the wrong parent function.
Where is the contact-mirror setting?
Open the parent device properties, select the display tab, and look for the contact-mirror button in the lower-right area.
What should I check if the circuit-breaker properties have no mirror button?
Verify that you opened the parent function that owns the auxiliary contact and that the contact and circuit-breaker symbol share the intended device definition.
