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Ladder logic for automatic stair lights

 
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andrewblog
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Joined: 01 Jun 2011
Posts: 7

PostPosted: Thu Feb 16, 2017 7:09 pm    Post subject: Ladder logic for automatic stair lights Reply with quote

This program controls a strip of ten lights by two pairs of photocells at bottom and top stairs. A count signal prevents the lights from getting dark when someone is walking along the stair.
The program has been tested with a plc simulator, but I think it should work with other applications, such as LDmicro http://cq.cx/ladder.pl

http://denandre.altervista.org/en/automatic-stair-lights.html


http://www.youtube.com/watch?v=HUuf1MAR6zw
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