AnsweredAssumed Answered

Vision slow to pull data - No Data

Question asked by jirvine on Feb 8, 2018
Latest reply on Feb 12, 2018 by sraposo

I have a Processbook PDI that we are displaying in PI Vision. Everything works fine in Processbook. In PI Vision, some of the data points occasionally go to No Data for one or two polling cycles then return back to the correct data. It's not ALL of the data points, but maybe half more or less. Looking at the data directly via AF Time Series Data, I'm not seeing any missing gaps. If I trend just a few of the points, also no missing data. In Processbook, I do not get the No Data message. It would seem like PI Vision is having a timing issue or time out issue polling the data. Is there a way to adjust the polling time or figure out if that is what the problem is? The Processbook display is about 150 data points with no calculations being done in PB, just pulling data for a display. There are calculations being done in AF at about 15 minute intervals.




Anyone have any ideas or had this problem before?