Set/remove Q-bit of tag values over timerange

Discussion created by jfitie on Jan 19, 2010
Latest reply on Jul 28, 2016 by vwitzel

Hello all,


Does anyone know if there is an easy way to set or remove the questionable bit on all values of a tag over a timerange (without having to use UpdateValues to update all of the values in the PI archives) using VB .Net (want to create an app to do this)?


The only way I can think of is to use the SDK to read all the tags values in a PIData object, then changing the NamedValueQuestionable’ and then use UpdateValues to update all values on the server.


This will probably be very slow and quite CPU/memory intensive for the PI server.


Best regards,
Johan Fitié
Vitens NV