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PID-Control

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Marco:
Good Morning wener_1,
thanks a lot for your example.
About your questions:

- the right divider was 4, but during the testing I tried to use also 1 as value.
- I subracted 200 beacuse the sensor is 4-20mA (0-100mbar), trasformed 2-10V (200mV-1000mV)

Thanks

Marco:
Good Afternoon wene_1,
if I well understood, with VC (I1= DC QV, SH=1023, SL=716), I could regulating the valve from 70% to 100%.
So, I've just given the enable (EV) at the valve, it takes up itself at 70%.

Is it correct?


Thanks a lot.


Have a nice day

Regards

werner_1:
What is "EV"?

I think, its correct.

At the transmitter you have 2...10V. Thats internaly 205 to 1023. If you now subract 200, you will have 5 to 823 for 0 to 100mbar. If you want to have 0 to 1000, you have to subract 205 and after them to multiplicate with 1,24.

Marco:
Sorry.
(EN) not (EV).

Everything is clear.

Thanks.

Regards.

Marco:
Good Morning,
I'm sorry to distub you again, but I would like to have more information about the right mode for calculating the PID components (KP, TN, TV, TC, MV).
Because, I want to know how to increase or decrease the answer's speed of the valve when the pressure changes.

Thanks.

Have a nice day.


Regards

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