OPCUA Server Timestamp issues

[viScience]

I noticed some strange anomolies in the OPC UA server when publishing tags at a 100ms rate using the OPC UA examples in LV 2018.

As you can see from the screen shots, that OPC Server is generating continuous waveforms and the client is acquiring tag historical data and graphing it.  On occasion I see what appears to be a time shifted trend seen as the rapid oscillations in the trend data.  

Is this caused by the fast tag write speed?  I am trying to simulate real world conditions where I will be writing 10 tags/s

[davidraj]

Hi viScience, 

I suspect that this is a symptom of faster write speeds than read speeds. Do you notice an interval for these anomalies? 

Also it looks like you are acquiring at 100 tags/s instead of the mentioned 10 tags/s. Does that change the readings that you find? 

Best, 

David Raji