I am trying to create a dashboard that has two charts on it, both graphing real time data coming in from an S7 PLC. I want the data capture to be as fast as possible (50ms) since I need the chart to display small changes in the data. The data can be captured at that rate and displayed just as text on the dashboard no problem, very close to real time.
As soon as I link the graph nodes to the dashboard, the ui runs much slower and the data being displayed on the graph is very delayed. I am running the editor and the ui on a raspberry pi 3.
When I increase the data capture to being every 500ms, the data displays on the chart nearly real-time, but I need to chart it faster to be useful.
Is there anything I can do? Thanks,