S7-200 PLC program to catch the pulse

[sdmnishu]

i Have an S7-200 plc and an single pushbutton.

when pushbutton is pressed for the first time output 1 should activate.

when pushbutton is pressed for the Second time output 2 should activate.

when pushbutton is pressed for the third time output 3 should activate.

when pushbutton is pressed for the fourth time output 1 should activate and the cycle needs to be continued.

can anyone let me know the procedure to Program the siemens S7-200 PLC...?

 

[STL???]

School work?

 

[sdmnishu]

kindly let me know if you know the answer... lets see whether you can answer the school work

 

[wolverine1981]

Hello

There would be several ways it could be done. Seeing you might just be starting out, you might be working on learning timers and counters. Using a counter with compare instructions would be one way to go.

Regards

 

[Mrslipmat]

Do You have a paypal account, I can answer your question for you, but this will inccur a small fee, alternativly, try answer yourself and then let us know what you come up with...

Regards

 

[jvdcande]

kindly let me know if you know the answer... lets see whether you can answer the school work

I know I do know the answer, there's even more than one way to solve this. But then I have proved myself in industry and training during almost 30 years. But up until now, if I need help I will humbly ask for it. Arrogance doesn't help anybody.

 

[Jeebs]

The S7-200 has a few things looking like:

-( )-
-|P|-
-| |-
-|/|-

Above each of these you can assign memory locations.
By placing these items, linked to the correct memory locations in the correct order will achieve what you are looking for.

 

[geniusintraining]

The S7-200 has a few things looking like:

-( )-
-|P|-
-| |-
-|/|-

I would do it like this....
A....S
S....O
A....R
R....O

 

[Jeebs]

Ugh no, the STL equivalent for the S7-200 is just plain horrible.

 

[sdmnishu]

solution

i planned to use counters but it did not work..

i mean the counter which cates the value upto 3 but again the cycle back to one cannot be continued

 

[sdmnishu]

tell me the nominal fee

 

[jvdcande]

i planned to use counters but it did not work..

i mean the counter which cates the value upto 3 but again the cycle back to one cannot be continued

This is however one of the possible solutions I mentioned ...

 

[jvdcande]

tell me the nominal fee

25€ per started quarter. This should be a less than 250€ job.

 

[geniusintraining]

i planned to use counters but it did not work..

i mean the counter which cates the value upto 3 but again the cycle back to one cannot be continued

Post what you have and we will try to help....

OR

Read this http://www.plctalk.net/qanda/showthread.php?t=54667

Hope it helps!