CPU Bus Unit Error

What does 0x0200-0x020F mean?

An error occurred during data exchange between the CPU Unit and a CPU Bus Unit, indicated by A402.07 and A417. This signifies a communication failure or an internal issue specific to one of the CPU Bus Units (unit numbers 0 to F).

• Communication failure between the CPU Unit and a CPU Bus Unit.
• Internal error within a specific CPU Bus Unit.

Click steps to track your progress.

1. 1

   Check the specific CPU Bus Unit indicated by A417.

2. 2

   Refer to the affected Unit's operation manual for detailed troubleshooting steps.

3. 3

   Restart the Unit by toggling its Restart Bit or by cycling its power OFF and ON again.

4. 4

   If the Unit does not restart or the error persists, replace the CPU Bus Unit.