using scope in Matlab Simulink to display when input's value changes

How do display all output in one scope when input's value chance:

EX:

Transfer of system is 1/(s^2+a*s+1) with a = {1:1:10}

a is declared in matlab then it is used for Simulink

[Do]

a=1;

a=2;

a=3;

....

a=10

Answer 1

[Sulaymon Eshkabilov]

It is a very intersting exercise. There are a few different ways to get simulation results for different values of a as defined in the exercise. Here are a couple of ways:

(1) Everything in Simulink. The variable "a" is also defined inside Simulink as a look up table via Model Explorer options. All 10 simulation results for a = [1 2 3 .. 10] are stored inside one scope block.

% sim('VerA_Loop.slx')  % All simulation results are stored in one simulink
% S = sim("VerA_Loop.slx"); % ALL Sim results are stored in one scope
% for a = 1:10
%     plot(S.Sout.time, S.Sout.signals(a).values)
%     hold all
%     L{a} = ['a = ' num2str(a)];
%     legend(L{:})
% end

(2) Simulation is called from MATLAB and results are obtained/augmented in MATLAB (not exactly as given in the assignment)

for a = 1:10
    S=sim("VerB_Loop.slx");
    plot(S.Out(:,1),S.Out(:,2))
    hold all
    L{a} = ['a = ' num2str(a)];
    legend(L{:})
    SimOUT{a} = S.Out;  % ALL Sim results are stored
end

[Do]

Great! Thank for your help!

[Sulaymon Eshkabilov]

Most welcome! Glad to help. So you accept the suggested solution :)