MATLAB: About controlling Simulink model execution at run time

Question

I would like to run a Simulink model from a MATLAB script. Is there a way to eventually stop and restart the simulation, depending on a particular signal value in the model?

In particular, my application is a transmission chain. Since I don't know in advance the proper noise level to set, I'd like to run the model with an initial one, and then eventually stopping, changing the parameter, and restarting, depending on the Error Rate Calcutation, which indeed is a signal in the model.

I've read about accessing blocks data at run time in the documentation, but still I didn't understand if I can do what I want.

Thanks for any help, Luca

Answer 1

You might want to use the Stop block to build the stop logic into the model itself. You can then run the model using the SIM command in a loop from MATLAB, and restart simulation at each iteration after modifying the required parameters. Note that the SIM command will not return until the model stops running completely (a pause will not do).