How to create own stimulus to drive simulink blocks ?

Hello,

I am new to Simulink world. I want to generate my own stimulus to drive my simulink design blocks. I can use the Simulink existing source blocks (such as step, sine etc). But I want to control a group of my signals as the function of simulation time. For example, signal A goes to a value at simulation time T1, then change to a different value at simulation time T2. Similar request for other signals. I am looking a suggestions for to write a simple function (text based is prefered) to achieve this purpose.

Thank you in advance.

-Tom

Answer 1

[Azzi Abdelmalek]

Example:

t1=0:0.1:10
y1=sin(t)

t2=10.1:0.1:20
y2=cos(t)./t

t=[t1 t2];
y=[y1 y2];
ty=[t;y];
save yourfile  ty

In your Simulink model use a from file block and set a file name to yourfile.mat

[Kaustubha Govind]

You can also use the Signal Builder block to do the same thing graphically.

[Tom]

Thank you Azzi and Kaustubha. I got both methods working. Appreciate your help.

-Tom