4 Replies Latest reply on Aug 23, 2017 8:45 AM by Nicolas.Isambourg

    How to calculate a predictive totalization with a PI Analysis

    Nicolas.Isambourg

      Dear Forum Members,

       

      I need to calculate in PI AF what the totalization will be at the end of the current shift.

      A shift lasts 8 hours, from 6:00 to 14:00, from 14:00 to 22:00 and from 22:00 to 06:00

      I created a PI Analysis with the following equations:

       

      Tot_Of_The_Current_Shift                           TagTot('Debit','Current Shift StartTime','*')

      PredictiveTot_Of_The_Current_Shift_1        8 * 3600 * Tot_Of_The_Current_Shift   / ('*' - 'Current Shift StartTime')

      PredictiveTot_Of_The_Current_Shift_2       TagTot('Debit','Current Shift StartTime','Current Shift EndTime')

       

      So, I found 2 ways to calculate the predictive totalization.

      Are these equations correct ?

      Can I define a future timestamp in the TagTot function ?

       

      Thanks,

      Best regards,

      Nicolas