The pid models in the Controllers array express the derivative filter coefficient as a
time constant, Controllers.Tf (see the pid reference page for more information).
However, the PID Controller block expresses the derivative filter coefficient as the inverse
constant, N. Therefore, the N Lookup Table block must be configured to use the inverse
of each value in Controllers.Tf. Double-click the N Lookup Table block to see the
configuration.
Simulate the model. The Concentration Setpoint block is configured to step through
a sequence of setpoints that spans the operating range between C = 2 and C = 9
Implement Gain-Scheduled PID Controllers