Based on my understanding of the question, you have a Simulink model with more than 20000 variables included in various “subsystem” blocks and “referenced subsystem” blocks and would like to rename certain variable and all its instances.
I was able to come up with a method to achieve that, follow the steps given below:
- On Simulink’s toolstrip, go to MODELING > Model Explorer.
- In the Model Hierarchy pane, right-click on the Simulink file’s name and select “Find Referenced Variables” option.
- Find the variable you want to rename in the list of all the variables that appear, right-click on that variable, select “Rename All” option and then click “OK”.
- Enter the new name for the variable in “New name” section and click “OK”.
- Press Ctrl+D on the keyboard to compile the model and verify the changes made.
For more information about editing and managing Workspace Variables and Model Explorer, refer to the following links:
Hope this help you!
