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Hello, im taking an introduction to PLC..and i'm having a
hard time on creating a program for 2 lamps blinking
alternately with this button characteristics:
1.) One push button (starts upon pressing)
2.) Same push button (when pressed again, will pause the
system)
3.) Same push button (when pressed again, will continue the
paused system)
4.) Same push button (when pressed within 2 seconds, will
shut off the system)
Pls..i know this is just a simple problem for you guys..
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Answer Posted / r.sundarraj
First draw relay logic and then given 1)connection from one push button connected through relay common point &take o/p in both lamps from NC via. 2)again press the NC button system pause .
3)now holding purpose taken another 1NO,1NC now system will not run
4)final NC o/p connected off delay timer
system power off
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