I/O Bus Timeout

What does E2-3 mean?

A timeout occurred during an operation on the I/O bus module. This indicates that a communication or processing step did not complete within its expected timeframe, possibly due to bus congestion, a slow response from a connected device, or a module malfunction. This can lead to unresponsive I/O.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Increase the timeout settings in the configuration if applicable and within safe operational limits.

2. 4

   If timeouts persist despite checks, replace the I/O module or related communication hardware.