Max I/O Modules Exceeded

What does 4 (Argument: --) mean?

The maximum permissible number of I/O modules connected to the controller has been exceeded. This prevents proper system initialization and operation due to hardware limitations on the I/O bus capacity.

• Too many I/O modules physically connected to the controller's internal data bus beyond the specified limit.
• Controller hardware limitation on the total number of I/O modules supported.
• Configuration error in the PLC program attempting to address more I/O modules than are physically allowed.

Click steps to track your progress.

1. 1

   Switch off the power supply to the controller.

2. 2

   Reduce the number of I/O modules connected to an acceptable value.

3. 3

   Switch the power supply back on to the controller.