Internal Error (SM560-S)

What does E2-25 mean?

The SM560-S Safety PLC has encountered an unspecified internal error. This indicates a system malfunction that prevents normal operation and requires intervention.

• Internal hardware malfunction of the SM560-S, possibly related to memory or internal communication.
• Firmware corruption, rendering the PLC unable to execute its internal routines correctly.
• Transient voltage instability on the 24VDC supply rail causing CPU logic errors.
• Unexpected software exception within the Safety PLC's operating system.
• Component aging leading to intermittent internal failures.

Click steps to track your progress.

1. 1

   1. Execute a full power down and restart of the entire control system, including the SM560-S module.

2. 2

   2. Check for any overheating indicators on the SM560-S module or in its immediate enclosure.

3. 3

   3. Verify the consistency between the loaded project in the PLC and the project on the engineering workstation.

4. 4

   4. Update the SM560-S firmware to the latest available version from the manufacturer's website.

5. 5

   5. Replace the SM560-S Safety PLC module if the error cannot be resolved through power cycling and software actions.