Sum of Tag values in Processbook

Discussion created by sigurdsen on Dec 12, 2011
Latest reply on Dec 13, 2011 by andreas

I have a question which I thought was elementary.


A tag has values every now and then (say every day, but incidentally two values on the same day and some days without values). 


I need to know the sum of these values from a given time untill now in Processbook, without ODBC or PI Totalizer, ACE, VBA or Datalink. Can I do this with PI Calculation?


I tried TagMean*EventCount, but I have a hard time getting the correct answer.


Anyone tried this?


Best regards,


Torbjørn Sigurdsen