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Consult the programming of pressure sensor in PLC

Consult the programming of pressure sensor in PLC

Answer:

PID is certainly good for analog quantities, but it can also be calculated in terms of formulas. Take an example of S7200. If 4-20mA is entered, the value of the PLC corresponding to the readout is 6400-32000, and if it is 0-10V, the corresponding value is 0-32000. In these values into the corresponding pressure value to add, subtract, multiply and divide. A formula: Ov = [S7200 (Osh - Osl) * (Iv - Isl) / (Ish - Isl)] + Osl, including: low limit high limit Osl: conversion results Ov: conversion results Iv: object Osh: conversion of the conversion results of the low limit high limit Isl: Ish: conversion object conversion object
I think so. The normal conversion doesn't need it. Maybe you joined PID
Can you take a program to see the general conversion 4-20mA, corresponding to 0-27648 calculation conversion, as you say, I think it is technically necessary to calculate it ~!

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