Follow Our FB Page << >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...

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
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..

Answers were Sorted based on User's Feedback

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for..

Answer / 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

Is This Answer Correct ?    0 Yes 0 No

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for..

Answer / milind

you have to keep latched the push button(start) in programe
and have to off the o/p coil when next pressed again.

Is This Answer Correct ?    0 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

in shunt clippers why a resistor is used in sereis with the input

0 Answers  

What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

1 Answers   vguard,

for 12KW motor which cable size has to select for ex.10 meter.

4 Answers  

what is creepage distance

2 Answers  

We are having Chemical earthing pit the voltage between neutral to earth showing 22V how to solve that

4 Answers  

Application of DC motors is generally restricted to a few load speed applications because of _____.

0 Answers  

Is there any standard guidelines/Criteria to design NGR/NGT.?

0 Answers  

Why ELCB trip, when neutral touch with ground?

1 Answers  

What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?

2 Answers  

what are the installation procedure of high voltage power transformer,CT,CB&PT?

0 Answers   Siemens,

While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

0 Answers  

New istallation how many eathing have one transformer? Names of earthing connect places?

10 Answers  

  • Civil Engineering Interview Questions Civil Engineering (5074)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4444)
  • Electrical Engineering Interview Questions Electrical Engineering (16594)
  • Electronics Communications Interview Questions Electronics Communications (3915)
  • Chemical Engineering Interview Questions Chemical Engineering (1092)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (258)
  • Instrumentation Interview Questions Instrumentation (2986)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (123)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1377)