Alarm Metrics not updating

Ignition
1

Hi,

I have an issue with Alarm Metrics in Ignition 8.3.

I have a folder with many UDT instances which can trigger alarms. I created a reference tag with reference to “[.]Alarm Metrics.activeAckCount”, however I noticed that the tag as well as the Alarm Metrics tags are not updating unless I open the particular folder in the tag browser.

The reference tag also includes a value change script writing the Alarm Count to a SQL table, which is not updated if the folder is not open in tag browser.

Does anyone have an idea about this?

Best regards

2

Try with an expression tag instead of a Reference tag. The alarm metrics have a lightweight internal implementation that avoids execution when not subscribed, and a reference tag isn't a subscription. (I think. Might be a bug worth reporting.)