Allen Bradley MicroLogix 1200 timeclock

rintintin

Member
Join Date
Nov 2009
Location
England
Posts
12
I need to operate outputs at various times of the day - I can't try program yet as I don't have the PLC. I am using compares, and for instance to get an output on from 1900 hrs to 2000 hrs have used GEQ with Source A=S:40 and Source B=19 and LES with Source A=S:40 and Source B=20. But how do the compares work around midnight? If I want to set an output between say 2300 hrs and 0200 hrs the next day, can I just use the same principle, ie, GEQ with Source A=S:40 and Source B=23 and LES with Source A=S:40 and Source B=02?
 
Last edited:
Thanks Bernie. I did wonder about the midnight bit which is why I posted. So, when I say >=23 it will only look up till midnight and not beyond and equally when I put <2 it will only look from midnight and not before?? Is that the case?
So from what you say I would have GEQ with Source A=S:40 and Source B=23 or LES with Source A=S:40 and Source B=02.
 

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