I have been running 7.8.3 and noticed a strange error. I was monitoring a couple tags - binary or digital tags (1 or 0 tags), with the easy chart. And it seems like, on occasion if the value changes from 0 to 1 or vis-versa, it will re-write the history of that tag from the previous 24 hours? I’m not even sure how that’s possible.
So, if for example I’m monitoring a motor’s run status, I’m looking at the easy chart and the motor has been on for the last 24 hours I can see a straight line at 1, then the motor turns off, and the easy chart will show the motor turning off (the 1 turning to a 0) not now, but 24 hours ago and staying off for that period of time, when I know it was running. So, the line that was at 1 has disappeared, and is now at 0. I’m also tracking the actual speed of the motor and that is recorded normally, dropping to zero only when the motor is shut-off.
Has anyone else observed this? I thought it was a problem with the way I’ve setup “on-change” historian collection, but recently switched my motor tags to “on-time” and the same thing seems to be happening.