Hi Sabereh,
I understand that you are getting an error while trying to change a block parameter in Simulink using the “SimulationInput” object in App Designer.
This error happens because you are using “setBlockParameter” along with “simulink.compiler.configureForDeployment”. These two are not compatible — once you configure a simulation for deployment, you are not allowed to modify block parameters directly using “setBlockParameter”.
To resolve this, you can change the block parameter in your model (e.g., “Gain” value) to be a workspace variable, and then use “setVariable” instead of “setBlockParameter” to assign the value.
Here is the corrected code:
function simulateButtonPushed(app, event)
try
simInp = Simulink.SimulationInput('test_model');
simInp = simInp.setVariable('kk', app.kkEditField.Value); % Set gain value using variable
simInp = simulink.compiler.configureForDeployment(simInp); % Prepares for EXE
simOut = sim(simInp); % Run simulation
t = simOut.tout;
y = simOut.yout{1}.Values.Data;
plot(app.UIAxes, t, y); % Plot output
catch ME
errordlg(ME.message);
end
end
To apply this solution, ensure that the “Gain” block in your model has its value set to “kk”(just a variable name) instead of a fixed number. The line setVariable('kk', value) passes this value to the model correctly even when it is compiled into a standalone “.exe”.
For further reference, please see the following documentation:
