Is there a direct function in PI-SDK (programming in VB.NET) to retireve all events of tag between two date but they should be within Zero and ZERo+Span
Thanks in advance
There is a function called "RecordedValues" under PIData class. In this function, you could use a expression as a filter to achieve your goal. The expression could be a PE string, and it could be configed as "TagZero('tagname') < TagVal('tagname') < (TagZero('tagname') + TagSpan('tagname'))".
thanks wang, will try.
Retrieving data ...