Backup Error warning, For DI840
Does anybody knows what is the cause of frequent failure of the redundant module of the DI840. When it is just clicked out then back on again, it works fine, then fails again, this is happening frequently with no clear reason.
is it the grounding? or is it field errors?
I would be more helpful if you could provide some more information below:
1. The module location in the cluster/Node.
2. No of IO modules in each cluster/node and no. of clusters in controller.
3. Module bus scan time.
Based on the above can find some clue that, this problem is due to modulebus time out or due to heavy loading of IO modules which causing this module to be missed from some scans of module bus etc.