WebCore Stays vs Remains difference?

[dnickel]

I made using a piston with Remains Below but I noticed there was no Time var as I would expect.
I have changed to Stays as it has a time var giving the expected retest window.
How does Remains differ?

[Pantheon]

Take a look here.

[dnickel]

Thanks. I did read this help file earlier but I still didn't clue in to what "present" use would look like.
Is it comparing a current trigger with the previous trigger to see it it remains the same or not?
That almost sounds like the past definition.

I just wanted to clarify the use case difference between:
If device stays above 100 for 10 minutes then (has a time window variable) and
If device remains above 100 (no time so what is it referencing for a decision?)

• past (see below)
• present (these are tracking triggers like changes*, drops*, remains*, rises*, enters*, exits*)
• future (see above - stays*)

[Pantheon]

@nh.schottfam

[nh.schottfam]

remains above (and rises) are using the device readings (when they occur) as the time portion ie the reported event times

so remains_above is (this device reading and the last device reading are > compval) (where there is a subscription on the device:attribute being checked)

 return oldValue!=null && oldValue>compval && curval>compval

where

• oldValue is the last reading of of the device
• curval is the current reading of the device
• compval is your comparison value for remains above.

It does sound like you want stays as your comparison.

[dnickel]

Thanks. Sort of what I guessed might be the case.
Another snippet of wisdom to my WC notes file!