Redundancy Fault - Urgent Help needed

[QasimFSH]

Hi all,

We are facing synching issues with redundancy module, where the Primary is ending up with disqualified secondary. Normally this would happen due to a coding issue where there is watchdog timer failure, and that results in some Minor and major faults too. this time though, there are no Minor or Major Faults as well. I dont understand why this is happening, and what can be the possible solution. Pls refer to the attached pic for reference.

 

[QasimFSH]

Also, pls note that it used to work fine until two days ago.

 

[Ken Roach]

Every release bundle of firmware for ControlLogix Redundancy comes with a Redundancy Module manager utility, which will give you more information about the reason and timing for the disqualification of the Secondary.

That utility's installer is bundled with the firmware kit.