Error: Failure State: Service not possible. Please reset the Safety PLC or download a project!
This is an error condition that is entered if the Safety PLC detects disconnection from PLCnext Engineer while in debug mode and after the elapse of more than 10 minutes, or if another condition that does not allow further execution of the program has occurred on the Safety PLC.
After this, the Safety PLC will enter the Debug Stop state and the 'Fail' LED in the Safety Cockpit is on.
Reset the Safety PLC or write the safety-related application program to the Safety PLC.