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What is the best way to connect tags?

Question asked by Palbqt on Aug 24, 2017
Latest reply on Aug 28, 2017 by gmichaud-verreault

Hi all,

Let's say I am reading a tag from one pointsource and want to send that value to another tag and pointsource.

I tried to do this using AF and PI Analytics where the expression was 'sourcetag' and mapped it to 'destination tag' and it works fine,

BUT it is slow. We are talking several seconds lag even if the scanrate of the sourcetag is 100 msec.

This "chain" includes source PLC-> HMI -> PInode with ICU -> buffersystem -> PI -> sourcetag -> AF attribute for sourcetag -> pi Analytics -> af attribute for destination tag ->

destination tag -> buffersystem -> another PInode with other interface -> another HMI -> destination PLC

 

As you can see, there is a long chain and we could of course spent money and time to have a more direct connection fex from HMI to HMI, but what I'm searching for is

an easier and more direct connection by using what we have, Enterprise package from OsiSoft.

 

Can anyone recommend a better approach?

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