Controller Connection Issue or Validator Not Complete

What does MOD Indicator Flashing Green mean?

The Module Status Indicator (MOD) flashes green when there is no established connection between the module and its owner-controller. For Compact 5000 safety I/O modules, this can also mean the Validator has not completed an initial Time Coordination exchange.

• Missing, incomplete, or incorrect module configuration in Studio 5000 Logix Designer.
• Controller communication fault or the controller is not in Run mode.
• For Compact 5000 safety I/O modules, the initial Time Coordination exchange with the controller's Validator has failed or is incomplete.

Click steps to track your progress.

1. 1

   Access the Studio 5000 Logix Designer project to examine the module's configuration and connection status.

2. 2

   Correct any missing, incomplete, or incorrect module configuration settings within the Studio 5000 Logix Designer project and download to the controller.

3. 3

   Verify the controller is in Run mode and actively communicating with the module.

4. 4

   For safety modules, verify the Time Coordination settings and status in Studio 5000 Logix Designer, ensuring the Validator process can complete.