Simulink Control Design™ - MathWorks

G = ss([-1 0.2;0 -2],[1 0;0.3 1],eye(2),0);

C = pid(0.2,0.5);

AP = AnalysisPoint('u',2);

T = feedback(G*AP*C,eye(2));

T.OutputName = 'y';

You can compute the open-loop response of the second channel and measure the impact

of a disturbance on the first channel.

L = getLoopTransfer(T,'u(2)',-1);

stepplot(getIOTransfer(T,'u(1)','y'))

When you create tuning goals in Control System Tuner, the software creates analysis

points as needed.

2 Linearization