PROFIsafe Communication Error (V2 CPU)

What does 20 mean?

A PROFIsafe communication error has occurred with an AC500 V2 non-safety CPU PM5xx. This means the safety module cannot correctly exchange telegrams with the safety CPU, leading to a safe state.

• Loss of PROFIsafe communication between safety devices and the V2 CPU.
• Network configuration error or cable fault in the PROFIsafe network.
• Failure of the PROFIsafe communication stack on either the V2 CPU or the safety device.

Click steps to track your progress.

1. 1

   Restart the affected module.