Converts a PID controller or controllers in Academic, Parallel, or Series form into the form (Academic) and PID gains units that the PID VIs expect. Wire data to the proportional, integral, or derivative input to determine the polymorphic instance to use, or manually select the instance.


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Each PID form produces the same result but incorporates information in a different manner. The following equations describe each form:

PID Academic

PID Parallel

To convert a controller in Parallel form to Academic form, this VI converts the proportional, integral, and derivative values according to their changes in units and applies the following transformations:

Kc = Kp Ti = Kc / Ki Td = Kd / Kp

PID Series

To convert a controller in Series form to Academic form, this VI converts the proportional, integral, and derivative values according to their changes in units and applies the following transformations:

Ti = T'I + T'D