Omron PLC

danishzaman · May 8, 2014

Hello dear friends

I am new user of PLC. I am using PLC model CPM1A CPU20
I am facing a silly problem in it..

I just want to blink one light at a time, so there for i used timer of 2 seconds. But when ever i start the program the timer enters in to infinite loop and could not reach to last instruction.

Tell me solution please

REGARDS: Danish Zaman

osmanmom · May 8, 2014

Please test

danishzaman · May 8, 2014

Reply to OSMANMON

my dear i test your attached program
but again i am facing same problem..
the timer goes on infinite loop..

My task is basically to on 1st light with push button and after 5 sec 1st light should turn off and 2nd light should on auto..

osmanmom · May 8, 2014

ah ha,

what your address number for output 1 ?

danishzaman · May 8, 2014

10.0 for output 1
10.1 for output 2
and so on...

osmanmom · May 8, 2014

What means 2 Light Auto,

how long 2 Light will be ON,

And when 2 Light will be OFF

danishzaman · May 8, 2014

1st light should remain on for 10 second
after 10 second 1st light should off and 2nd will on for 10 second..

just light traffic signal..

osmanmom · May 8, 2014

You add 1 more Timer (it will TIM 2)

below rung 6

front of TIM 2 put Normaly Open TIM 1

Rung 8 put Normaly open then go to output 2

please test,

additional info/document,

very usefull

www pacontrol com/download/OMRON-PLC-Programming.pdf

danishzaman · May 8, 2014

dear "osmanmon"

i am trying to apply your given instruction, but there is some confusion..
can you please take a snap shot of programe?

osmanmom · May 8, 2014

okay

after this you need to do yourself and make experiment

work hard

read the document that i link to you

salam

iant · May 8, 2014

you could use one of the omron system contacts a counter and some compare functions

danishzaman · May 9, 2014

Assalam-u-alikum!

With your help i have completed the given task.
Actually i am making traffic signal..
Half work has done.. But i have to make a loop!

In attached snap, there is
1st Red light (10.00) on for 10 seconds
then Yellow light (10.01) for 5 seconds
and at end green light (10.02) for 10 seconds..

but after that i have to jump at 10.00 ( RED LIGHT) again..

Well thanks alot for your time..

and your given link is not opening.. please check it again and send

Thank you

Regards: DANISH ZAMAN

danishzaman · May 9, 2014

hi IANT

Thanks for your concern. I can work on ladder logic..
I'll try to work on your given commands.

Thank you

Redards: Danish Zaman

Lancie1 · May 10, 2014

and at end green light (10.02) for 10 seconds..
but after that i have to jump at 10.00 ( RED LIGHT) again..

1. On Rung 003, replace the "TIM 002 --|/|--" with "TIM 003 --|/|--".
2. Add the Green Light 10.02 on Rung 20. The Green Light goes ON when TIM002 goes ON, but goes OFF when TIM003 goes ON. The new TIM003 contact on Rung 003 causes the program to start over and recycle until the STOP switch 0.00 is pressed.

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