Line 4 filler, PanelView Plus 7 Performance 12 inch, application built in View Studio ME v12. It logs 14 tags, temperatures and the fill weight, to a data log model on the SD card, one sample a second. The trend screen showed history fine for about three weeks after the terminal was replaced, then the pens stop on the 12th and the trend is empty from there. Live values on the same screen update fine, so the comms are up.

I power cycled the terminal twice and pulled the SD card to look at it on a laptop, where the log folder has files in it dated the 12th. No alarm, no error on the terminal, nothing in the diagnostics list.

Is the trend object broken or is it the card? Operators want the weight history for QA.