Some alarms don't diplay on the alarm page and are not logged on the logging device in Citect SCADA 2016.

Hello, All.

I'm Kang.

I'm confronted with difficulties upgrading project from v6.1 to v8.0.

Many alarm occurs by 100ms cycles on the project.
The type of alarms is digital alarm, and all alarms are important because they need to monitor the alarm continuously.

I upgraded the v6.1 project which recorded the all alarm to v8.0

And then, some alarms do not appear in the active alarm page or summary page, do not recorded in the csv logging device.

Alarms that occur at 100ms should occur 10 times per second. However, in fact, about 5 to 6 alarms were found to be recorded.

The same configuration, v7.4 or less, is actually running on the same site, but this problem does not occur.

Even if the alarm scan time parameter is changed to 50 ms or 100 ms, it does not operate.
I wonder why the parameters do not work.

What can I do?