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How to only log data when process is running? Options · View
tellme1970
#1 Posted : Tuesday, March 15, 2011 3:38:26 PM
Rank: Newbie
Groups: Member

Joined: 3/9/2011
Posts: 2
Good day:

I'm wondering how to turn on/off logging automatically for a group of tags when our process is running (ON/OFF). I've figured out how to set up each tag using EVENT 'myProcessTag' NonZero (ExDesc). In theory, it's accomplishing what I'm after, it's just not fast enough. Alot of our tags are collected at 333msec. rate. Not using EVENT, it logs this data just fine - three unique values per second. But, when I add the EVENT (and process is ON), it logs three entries per second, but two of them are stale. Thus, I'm only collecting the real value once per second.

Thoughts on how to fix this, or even a different approach? It would nice if I didn't have to use EVENT on a per tag basis, but rather on a per group of tags basis.


Cheers...
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