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PI PE tag showing different values as Evaluate value and Current value

Question asked by Paurav Joshi Champion on Jun 30, 2016
Latest reply on Sep 6, 2016 by Paurav Joshi

Hi All,


I have PI PE tags, that has equations and running fine.

Today I changed the equation condition of PE tags, and exported them from excel as Edit option.


According to logic, PE tag should show value 0 instead it is showing 4.

At the same time, when I click on Evaluate in Performance Equation tab of Points in SMT, it is showing me value 0.


I tried updating PI tags as it is using create or edit option, but still it is showing me value 4 instead of 0.


My doubt is that is it possible that PE tag evaluate and actual value to be different?

If yes, then please guide me in which cases that can possibly happen?


Update: I created new tags via SMT by putting _test suffix to the tag. To my surprise it is also showing value 4 and when I evaluate, it is showing value 0.

So I don't think so tag is corrupted here. This leads me to 2nd question as I asked above.


In which scenarios evaluate option and actual PI PE tag value show different values?



Paurav Joshi