1 (Argument: 10)
Serial EEPROM Initialization Fault
Wago · PFC200 PLC
What does 1 (Argument: 10) mean?
A fault occurred during the initialization of the serial EEPROM. This prevents the controller from properly accessing or configuring its non-volatile memory during startup, which can halt system operation or prevent it from loading essential settings.
Common Causes
- Hardware malfunction of the serial EEPROM.
- Corrupted data within the EEPROM preventing successful initialization.
- Issues with the controller's internal bus preventing access to the EEPROM during startup.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Switch off the power supply to the controller.
- 2
Reduce the number of I/O modules connected.
- 3
Switch the power supply back on to the controller.
Verified technical data. Last updated: March 2026
Related Faults
Source: Wago PFC200 PLC