Hi, when you run a Simulink model in MATLAB from a different directory, MATLAB may create a duplicate of the model file in the current working directory if it needs to write changes to the model. This typically happens if you modify the model during the simulation or if the model has unsaved changes when you start the simulation.
Here are a few suggestions to avoid unintended duplication:
1. Check for Unsaved Changes: Ensure that the master model file is saved without any unsaved changes before running it from a different directory. This can prevent MATLAB from needing to create a local copy to save changes.
2. Use Read-Only Mode: Open the model in read-only mode if you do not need to make any modifications to it. This can be done by setting the model file's properties to read-only in the file system.
3. Avoid Modifying the Model: Ensure that your script or any callbacks associated with the model do not make changes to the model during its execution.
4. Use `cd` to Change Directory: Instead of adding the master model to the path, you can change the current directory to the location of the master model file using the `cd` command. This way, MATLAB will operate in the directory where the master model resides.
cd('path_to_master_model');
open_system('master_model_name');
sim('master_model_name');
Use Model Reference: If possible, consider using model referencing instead of duplicating models across directories. This allows you to have a single master model that can be referenced by other models without duplication.
You can check the following documentation pages for more details:
1.Reuse models as blocks in other models -
2.Model Reference Basics -
