System 800xA Event List is not working or recording
We have following configuration of System 800xA [126.96.36.199] which is commissioned.
Domain+AS+CS [Redundant] -1 Set [Common for all 21 sets of controllers]
AC800M PM867 -21 Redundant Sets
Recently one controller out 21 has stopped generating events in normal operation, but DA is working well. We have checked related DA and AE configuration in OPC server, both are showing healthy [Yellow Smiley].
All other 20 controller are generating events and except this.
Ensure the SystemDiagnostics function block exists in the controller application (default located in Diagram3, or else you must reinsert it somewhere and download). During online with the controller application, call the SystemDiagnostics interaction window in Control Builder M (or use the corresponding System 800xA faceplate), press Update or enable Cyclic update, then go to the Alarm Event section and study each of the Subscribers (the AC 800M OPC AE Servers).
Make sure the size queues are 0 and subscription status is 1 (marked in the image above).
There have bin/still are known issues if the A&E connection is made via the secondary network connection; make sure you see the AC 800M OPC Server's primary address.
Please consider filing a support case with your regional ABB support center.