Created Date: May 12,2016

Created by: rheem

I'm sure there is some way to accomplish this, but I cannot find it in the documentation. I'm not new to programming, but new to automation controls and the Productivity Series. I'm working on a P3-550 and looking for a way to take a sample of a thermocouple input every minute, and then average this value over 30min (30 samples, depending how you look at it).

I have found software instructions for averaging across channels, or averaging a single channel for ALL time, but nothing that lets me choose a specific channel and average it over a set time limit. My work around is savings each 1 min sample to a tag/variable, and then averaging over those 30 tags, but that seems very inefficient.

Thanks for any guidance! :)

Created Date: May 12,2016

Created by: techme

You can create a couple of flasher coils 1 for one minute and one for 30 min( actually 30 sec and 15 min since you wish to see the transition and it will be on for 30 sec and off for 30 sec) then use a NOE of the 30 sec flasher to a MATH instruction that takes your tag and adds it to an accumulated tag. Then have another rung that a NOE contact off the 15 min flasher takes the accumulated value and divides by 30 and loads to an average value tag in a MATh box and paralleled with it you can copy a 0 into your accumulated value so the average starts for the next 30 min.