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Issues with PI summaries result set.

Question asked by adhiman on Feb 24, 2016
Latest reply on Feb 25, 2016 by bshang

I'm trying to retrieve calculated sample values for a given time range. Last known time stamp on PI server is at 09:11.

Values returned from summaries method is equally spaced till 09:15 with the last known value shown for the period after 09:11 - 09:15.

 

            var afTimeRange = new AFTimeRange(new DateTime(2016, 02, 24, 9, 08, 0).ToUniversalTime(), new DateTime(2016, 02, 24, 9, 15, 0).ToUniversalTime());

            var afSummaryType = AFSummaryTypes.Minimum;

            var results = piPoint.Summaries(afTimeRange, new AFTimeSpan(milliseconds: 1000), afSummaryType, AFCalculationBasis.TimeWeighted, AFTimestampCalculation.MostRecentTime);

            var afValues = results[afSummaryType];

 

Is it a known behaviour ?. or is it possible to discard these extra values, if there are no actual values in PI for a time interval ? Thanks

 

Message was edited by: Anil Dhiman

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