rate change for an output

Paw-Paw · Jan 13, 2009

Hi new to this forum.
I am writing a sequence program. Running in to the problem of dual coiling.
I need same output to be hi for 5 sec. than after it goes through sequence same output for 4 sec, and so on 3 sec, 2 sec. I can't put a diff timer to same output (dual coiling prob).

Any pointers on how to change rate of output.

Any suggestions welcome.

Thank you in advance.

robertmee · Jan 13, 2009

Paw-Paw said:
Hi new to this forum.
I am writing a sequence program. Running in to the problem of dual coiling.
I need same output to be hi for 5 sec. than after it goes through sequence same output for 4 sec, and so on 3 sec, 2 sec. I can't put a diff timer to same output (dual coiling prob).

Any pointers on how to change rate of output.

Any suggestions welcome.

Thank you in advance.

Use the same timer, just change the timer preset with a MOV instruction based on the time you need.

milldrone · Jan 13, 2009

Paw-Paw,

Robertmee gave you the right answer. If you need more help, post back with your model of PLC. Some one will help you with your specific problem.

Edit: Welcome to the forum!

Ken Moore · Jan 13, 2009

Another way?
Have your timers enegize internal bits (coils).
Then connect these internal coils in parallel to fire your output.

rate change for an output

Paw-Paw

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robertmee

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milldrone

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Ken Moore

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