I/O Module Configuration Mismatch After Data Bus Reset

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The detected I/O module configuration following an internal data bus reset does not match the configuration that was present after the last controller startup. This suggests a transient issue with the I/O bus communication or a configuration inconsistency requiring a controller restart.

• Transient internal data bus communication error leading to configuration discrepancy
• Temporary I/O module configuration discrepancy detected after an internal data bus reset
• Software or hardware glitch causing an unexpected internal data bus reset

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1. 1

   Restart the controller by first switching off the power supply and then switching it back on.

2. 2

   Alternatively, press the Reset button located on the controller.