Allen Bradley / VTScada speed issues

dbabler

posted Jan 23 '20 at 1:24 pm

Has anyone experienced issues being online with an Allen Bradley PLC, causing VTScada to slow down or even lose communication at all? Doesn’t really cause any major issues (yet) but I’m curious if anyone else has seen this, thank you

Michael

posted Jan 23 '20 at 3:02 pm

When you make an online change, the entire PLC tag database is queried.

I generally lose communication for ~15 seconds with a PLC with ~200k tags.

It shouldn't cause any major issues on newer VTScada versions if you are careful knowing this will happen and you avoid using polling drivers.

When you make an online change, the entire PLC tag database is queried. I generally lose communication for ~15 seconds with a PLC with ~200k tags. It shouldn't cause any major issues on newer VTScada versions if you are careful knowing this will happen and you avoid using polling drivers.

edited Jan 23 '20 at 3:09 pm

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