Learn SIMULINK-MATLAB-SCRIPTING with Real Code Examples

Updated Nov 27, 2025

Introduction & Fundamentals Setup & Configuration Architecture & Deep Internals Performance & Security Development Workflow Learning & Career Growth Business & Strategy Examples

Code Sample Descriptions

Programmatically Create a Simulink Model

new_system('autoModel');
open_system('autoModel');
add_block('simulink/Sources/Sine Wave','autoModel/Sine');
add_block('simulink/Sinks/Scope','autoModel/Scope');
add_line('autoModel','Sine/1','Scope/1');

Create a blank Simulink model and add a Sine Wave and Scope block.

Let’s Try →

Set Block Parameters via Script

set_param('autoModel/Sine','Amplitude','5','Frequency','2');

Modify parameters of a Simulink block programmatically.

Let’s Try →

Run a Simulink Model From MATLAB

simOut = sim('autoModel');
y = simOut.get('yout');

Execute a simulation and get output data.

Let’s Try →

Add Subsystem Programmatically

add_block('built-in/Subsystem','autoModel/MySubsystem');
move_block('autoModel/Sine','autoModel/MySubsystem/Sine');

Create a subsystem and move blocks into it.

Let’s Try →

Add MATLAB Function Block

add_block('simulink/User-Defined Functions/MATLAB Function','autoModel/Calc');
set_param('autoModel/Calc','Script','function y=f(u)\n\ty=u^2;');

Insert a MATLAB function block and define its content.

Let’s Try →

Find All Blocks in a Model

blocks = find_system('autoModel','Type','Block');
disp(blocks);

Return a list of all blocks in a Simulink model.

Let’s Try →

Programmatically Tune PID Controller

set_param('autoModel/PID Controller','P','2','I','0.5','D','0.1');

Set KP, KI, KD values on a PID block.

Let’s Try →

Set Simulation Parameters

set_param('autoModel','StopTime','20','Solver','ode45');

Adjust solver and stop time settings.

Let’s Try →

Export Simulation Results

simOut = sim('autoModel');
save('results.mat','simOut');

Run a model and save output to a file.

Let’s Try →

Automate Batch Simulations

for k = 1:5
    set_param('autoModel/Sine','Amplitude',num2str(k));
    out = sim('autoModel');
    fprintf('Run %d complete.\n',k);
end

Run a model with different parameter values in a loop.

Let’s Try →

Code Sample Descriptions

Programmatically Create a Simulink Model

new_system('autoModel');
open_system('autoModel');
add_block('simulink/Sources/Sine Wave','autoModel/Sine');
add_block('simulink/Sinks/Scope','autoModel/Scope');
add_line('autoModel','Sine/1','Scope/1');

Create a blank Simulink model and add a Sine Wave and Scope block.

Let’s Try →

Set Block Parameters via Script

set_param('autoModel/Sine','Amplitude','5','Frequency','2');

Modify parameters of a Simulink block programmatically.

Let’s Try →

Run a Simulink Model From MATLAB

simOut = sim('autoModel');
y = simOut.get('yout');

Execute a simulation and get output data.

Let’s Try →

Add Subsystem Programmatically

add_block('built-in/Subsystem','autoModel/MySubsystem');
move_block('autoModel/Sine','autoModel/MySubsystem/Sine');

Create a subsystem and move blocks into it.

Let’s Try →

Add MATLAB Function Block

add_block('simulink/User-Defined Functions/MATLAB Function','autoModel/Calc');
set_param('autoModel/Calc','Script','function y=f(u)\n\ty=u^2;');

Insert a MATLAB function block and define its content.

Let’s Try →

Find All Blocks in a Model

blocks = find_system('autoModel','Type','Block');
disp(blocks);

Return a list of all blocks in a Simulink model.

Let’s Try →

Programmatically Tune PID Controller

set_param('autoModel/PID Controller','P','2','I','0.5','D','0.1');

Set KP, KI, KD values on a PID block.

Let’s Try →

Set Simulation Parameters

set_param('autoModel','StopTime','20','Solver','ode45');

Adjust solver and stop time settings.

Let’s Try →

Export Simulation Results

simOut = sim('autoModel');
save('results.mat','simOut');

Run a model and save output to a file.

Let’s Try →

Automate Batch Simulations

for k = 1:5
    set_param('autoModel/Sine','Amplitude',num2str(k));
    out = sim('autoModel');
    fprintf('Run %d complete.\n',k);
end

Run a model with different parameter values in a loop.

Let’s Try →