Stepper motor this signal 4-20 mA.

Hello Dmitry;

Your explanation of the problem you are facing is far from complete. It would be difficult to give you any help as it stands.

Please take the time to correct your initial post.

Hope this helps, 

Daniel Chartier 

Good afternoon.

I have an analog input module for 4-20 mA, the problem is more software, how to make a correlation with the pulse signal from the analog signal. Let's assume that the relationship is completely linear over the entire range. When the current from the sensor increases, you need to increase the number of pulses linearly. For example, at 4 mA-0 Hz, and at 20 mA-3 KHz.

I'm sorry I didn't put it that way right away... rush. 

What is the maximum frequency?

And how a piece of the program will look at the maximum frequency for the logo. 

I apologize for the persistence, I just can't understand the algorithm itself.