Hello everybody

Can help me this

I need to generating output pulse = f(input pulse) .

ex. from input pulse 500imp, I need output pulse = 2 x (input pulse) = 1000 imp

the important condition is : input pulse not fixed, It change follow speed convey.

Thank you for your relies.

jacek d

And what is the highest expected frequency on incoming pulses?

 Hi jacek d

The input pulse highest about 200 Hz

do you have any suggestion ?

thank for your care

Hello.

There is some confusion. Do you want someone to code the solution for you or do you have some specific question?

You use the period measuring method with an HSC (high speed counter) to measure the time period between rising edges of the input signal.(https://support.industry.siemens.com/tf/uk/en/posts/ask-scl-of-tia-portal-v14-example/163508/?page=0&pageSize=10)

To generate a pulse, the PTO_CTRL instruction is available for S7-1200 firmware V4.2 or higher version. The alternate is the motion control technology object: MC_JOG.

The ultimate question from you to you - why do you not feed the pulse directly to the drive of the conveyor? Reason: The reaction time of the PLC is slow.

- Dan

minhmosa

Hello everybody

Can help me this

I need to generating output pulse = f(input pulse) .

ex. from input pulse 500imp, I need output pulse = 2 x (input pulse) = 1000 imp

the important condition is : input pulse not fixed, It change follow speed convey.

Thank you for your relies.

Hi dP

I just someone can tell me the way.

I will have a look on  your suggestion.

Thank you.

minhmosa

Hi dP

I just someone can tell me the way.

I will have a look on  your suggestion.

Thank you.

 Please post the specifics of our hardware and software as the replies will vary b accordingly

For example what #dp suggested will work on version 4.2 and TIA14 and if that's not what you're using then that would not work for you.

The more detail you provide the more help you will get.