Jörg-Detlef Kern

How to avoid two values with same timestamp

Discussion created by Jörg-Detlef Kern on Jun 26, 2013
Latest reply on Jun 28, 2013 by Gregor



using PI OLEDB (or by other means) it is possible to store two values of the same tag at the same timestamp in the PI Server. E. g.:




Is there any global setting of the PI Server (or of PI SDK) which prevents the PI Server to store more than one value at a time?


An insert statement should fail, if the is already an value at the same time. Or the existing value shoult be replaced.


The second value (with _index = 2) in the example should be rejected from the PI Server or should replace the first value.