Hello Vladislav,
The limitations you're experiencing with the port dimensions in a protected model are indeed a challenge when dealing with different configurations. Unfortunately, once a model is protected, its port dimensions cannot be directly altered. However, here are some targeted solutions to consider for your situation:
- Variable-Size Signal: Adjust your unprotected model parts to work with variable-size signals, ensuring that the protected model's inputs can adapt to different signal dimensions.
- Masked Subsystem: Implement a masked subsystem that wraps your protected model. The mask can provide an interface for input size configuration, managing the adaptation of signal dimensions internally.
- Multiple Protected Models: If the range of input sizes is known and limited, create different protected models for each specific input size. Use a MATLAB script to select and load the appropriate model based on the current input size.
- Wrapper Model: Develop a wrapper model that preprocesses the input signals, either by padding or truncating, to fit the protected model's expected input dimensions.
- For infrequent changes in configurations, you may recompile the model with new dimensions and re protect it each time the input size changes.
- Design your system to include Simulink Function blocks that are called with variable-size inputs. Ensure the function blocks are set up to handle variable-size signals.
- Custom S-Function: Write a custom S-function that handles variable-size inputs and adapts them for the protected model.
These workarounds can help you maintain a single model configuration while addressing the varying input size requirements. You can look at other features of protected model in the documentation: https://www.mathworks.com/help/simulink/slref/protected-models-for-model-reference.html.
