We have this device connected to SIEGate. OpenHistorian is subscribed to SIEGate. For weeks now I have been able to view device data using the Trend/Export or the Grafana tool on the OpenHistorian web page.
It has come to my attention that measurement data is not being recorded for 1 of the connected devices. Sure enough the last data you can see recorded historical data is about 4 days ago.
The odd thing is if you go into Real-Time measurements, you can see OpenHistorian receiving the data right now and values are graphing.
Can you guys think of any situation where data is being received and is viewable in Real-Time measurements but no history is recorded/retrievable for it?