In matlab coding of PID, can I convolve error with pid equation

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azan 2012-12-3

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https://ww2.mathworks.cn/matlabcentral/answers/55483-in-matlab-coding-of-pid-can-i-convolve-error-with-pid-equation

I want to write Matlab code for pid controller.Since I am new to controllers so can anyone please guide me that to write code shall I take Laplace inverse of the equation C=Kp + Ki/s + Kd*s; And then convolve it with the error which is a scalar value e.g 3. Is this an appropriate way or not?

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Arkadiy Turevskiy 2013-1-2

It is not clear what exactly you are trying to do. Please be more specific in what you are trying to calculate/design/simulate.

If you want to simulate a closed loop control system, your error term would not be constant and you do not need to do convolutions to calculate time-domain responses.

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