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Expressions in PI Datalink and PI Processbook

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Hello Everyone,

 

We are trying to pull some data from the PI server through PI datalink. But we want to add some expressions to it before we dump it in excel.

 

Here is what i want to do: 

 

1] I have two different tags Tag1 and Tag 2 (both Float32). I want to check for the time stamp and values for both of them when Tag1 < 500 and Tag2 < 300. I would be interested in getting the archived data but if i get interpolated data then its fine.

 

2] Same as above but i have to use three tags instead of only two tags.

 

I tried using AND condition in the Compressed data function of PI Datalink for a certain timeperiod but it didnt gave me any values. But for the timeperiod definitely there are some values which will satisfy the condition..

 

Any help ?


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