exchange data between script and model

I am trying to send data from script to model and get the output data of the simulink model on the script to apply some calculations on them. I tried to use sim command, but it takes long time to run and cause out of memory to my script.

Is there any suggestions on other method that I can use?

[Pawel Ladosz]

Does your sim run in some sort of loop? (i.e. multiple times within single script)

[Khaled Abojlala]

No, I run sim command at the start of the script only and I get scope output within loop to start applying FFT and other calculations on those data.

[Pawel Ladosz]

1. I assume sim runs much slower than it would if you just run simulink model on its own?

2. How big data you trying to save?

[Khaled Abojlala]

four parameters with time step 10e-4 for time duration 4 sec. can I send prameter value using sim command or not?

[Walter Roberson]

You can set_param() and then sim()

Answer 1

[Walter Roberson]

You might be able to use "MAT file logging"; see https://www.mathworks.com/help/rtw/ref/mat-file-logging.html

The To Workspace block only sends data at the time the simulation stops or is paused. In the past I have seen tricks for pausing the simulation and automatically restarting. See https://www.mathworks.com/matlabcentral/answers/80934-systematically-pause-simulink-model-and-continue-from-matlab-command-line#answer_90648

But see also http://www.mathworks.com/help/simulink/ug/accessing-block-data-during-simulation.html