I want to change a variable in SIMULINK using m-file.Suppose for a certain simulation time t=0 to 5,I want V=10 and for t=5 to 10, V=20. How to write in m-file

I want to change the variable during the simulation time.

Answer 1

[Sebastian Castro]

It might be doable with callbacks and such, but I'd recommend going simple if possible.

The easiest thing would be converting that V parameter into an input and passing the following time data in with an Input port or a From Workspace block (your choice).

>> t = [0;5;5;10];
>> V = [10;10;20;20];

- Sebastian

[SIDHARTH SABYASACHI]

Thank you for your reply Sir.I have tried this but while running,it is showing the error that Parameter 'Amplitude' must be a scalar value. Please help me to resolve this.I want to change the variable in the simulink model parameter.

[Sebastian Castro]

Yes, my suggestion was to change it from a parameter to be an input signal. To do this, pass V in using an Input port, From Workspace block, or equivalent.