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Assume that you have a good model of your process: transfer function of the process itself, of disturbances, etc. You design a PID controller. You add a filter, a compensator. Even more, you have a Multi Input-Multi-Output system, so you design a compensator to decouple the systems; which is, of course, a transfer function (or a matrix of transfer functions).
When it is time to implement this beautiful exercise on the process, you have a powerful cpu of Siemens S7-300 PLC (equipped with the PID module, I/O etc.).
Now, my question is: how do you put into the PLC all these beautiful transfer functions, filters, etc.?
AS far as I can see, I can input the P, I, D parameters in the PID block, but.. what if I want to add a filter, or a pole/zero cancellation?
Is there a way to accomplish it?
It is probably a naive question, but I have been thinking about it for weeks now, and can't figure out any solution.
Thank you very much for your kind interest!
When it is time to implement this beautiful exercise on the process, you have a powerful cpu of Siemens S7-300 PLC (equipped with the PID module, I/O etc.).
Now, my question is: how do you put into the PLC all these beautiful transfer functions, filters, etc.?
AS far as I can see, I can input the P, I, D parameters in the PID block, but.. what if I want to add a filter, or a pole/zero cancellation?
Is there a way to accomplish it?
It is probably a naive question, but I have been thinking about it for weeks now, and can't figure out any solution.
Thank you very much for your kind interest!