Access and change variable in Model Workspace within the Simulink simulation

3 views (last 30 days)
Luca FS
Luca FS on 22 Sep 2021
Commented: Luca FS on 23 Sep 2021
How can I change variables in the Simulink Model Workspace during simulation? So for example, I have a signal that is given from a subblock to the output. I want to store this signal continuously in a variable (a 1x1 double for example, no timeseries or so). I want to use the results as variable input e.g. for the frequency of a sine block (therefore the method with goto does not work here).

Answers (1)

Jonas
Jonas on 23 Sep 2021
You cannot change objects in the Model Workspace during simulation. Or it's not intended for this at least.
Use Data Store Memory block to define a variable, and then Data Store Write at the subblock output and Data Store Read at the input of the sine block.
Instead of using a Data Store Memory block to define the data store object, you can also create a Simulink.Signal object inside your Model Workspace or Data Dictionary, it serves the same purpose. In the Data Store Write and Read blocks you will find back the Simulink.Signal object in the drop-down list.
  2 Comments

Sign in to comment.

Products


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!