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Pulse Generation


Generate a Short pulse every 1 Sec 


Solution :- 


Pulse generation using timer of 1 Sec.
  • Above fig. shows ladder dig. for generation of pulse after every 1 sec.
  • in first rung of program start NO contact is connected in series with timers Done bit NC contact and a TON timer with a preset value of 1 sec.
  • In second rung of the program timers DN bit NO contact is connected in series with the output O:2/0 coil
  • when start button is pressed output gets on for 1 sec of time and after 1 sec DN  bit of the timer gets on which will reset the timer and also output gets off for some time.

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