I’m not sattisfied with the charts object, it’s to heavy (memory load wise) and not flexible enough in configuration and to the viewer. And I get that. If you want that your option is C++ in combination with HTML, JS and some JS charting library.
Also I wanted to split up the charts into two charts (two different scales), but due to a bug this is impossible. Bug has been reported via the local Phoenix Contact support desk. There’s also a bug that when you want to log these values on the SD card you will have to put your TSDB session before the Database session (for the charts), otherwise you can’t link it to the chart object – because it won’t show up in the drop down box. Also reported.
Datalist with average values?
In order to show the user the measuring and logging is working okay I would like to display a list of measured values over the last few hours or so. How can you approach this to get a list of data points in your HMI? And with which HMI object?