When running the counter as UINT it just causes the number to be wrong, counts 10 alarm when there are zero active alarms.
We have an NJ101-9000
We noticed that if we delay the enabling of the alarm function blocks by 1 sec after the PLC is booted up it works fine. We will run with this solution for now.
We could not pinpoint what causes the issue, but I think it may have something to do with different programs running different task periods.