Hello,
I have been noticing that PI (excel) and PB (value box object) has differences datas for the same period.
Let me explain with an example:
I have one tag: TAG1
Start Date: SD - e.g. 29/04/2013
End Date: ED - e.g. 30/04/2013
In PI (excel), i choose "calculated date", insert my Server, TAG1, SD, ED, and Average for Calculation Mode. See the line expression.
In Processbook, i insert a value box object and the expression, above
- =PIAdvCalcDat(TAG1;"SD";"ED";"1day";"average";"time-weighted";0;1;65;"Server") - PI
- TAGAVG(TAG1,'SD', 'ED') - PB
However i found two different datas.
Ok, the difference is about 0.3% or less, but why does it happen? I would like to understand it better.
Sorry my bad english. If it is not clear, please, let me know!
Regards,
Naraiel Ferrari