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time of last event

Question asked by Seaver21 on Jan 5, 2020

Hello, 

I'm creating a Pi display that I need to auto-update every time the tag was at a value of 1 (the tag is a motor so the value is either a 1 or a zero). The facility needs to know when the last time (date) this piece of equipment was on. Heres what I've put together so far but I've been unsuccessful in getting it to operate correctly. 

PrevEvent('pi_tag','*')     

 

I am trying to get the display to update from the current time so the * is what I put into the formula.   

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