Hi,
I’m wondering what’s really happening when I set a Tag History Value Mode to Analog.
I tried what follows
- set a
motor_rpm
Tag History Value Mode to Discrete: plots on the Easy Chart component as well as points I can get withsystem.tag.queryTagHistory
are correct, i.e. they just look as I expected; - set the same tag Value Mode to Analog: plots and points have nothing to do with the history of the tag at all (values are really far from the rpm motor values I saw in realtime).
I read this part of the Ignition manual:
https://docs.inductiveautomation.com/display/DOC79/Configuring+Tag+Historian
however cannot grasp the reason why my results are not as expected.
(Ignition version: 7.9.9 (b2018081621))
Thanks in advance, regards