Analyze Models Containing Simulink Functions Using Model Slicer

Open the Model

1. Open the model slicer_simulink_func.

open_system('slicer_simulink_func')

2. On the Apps tab, under Model Verification, Validation, and Test gallery, click Model Slicer.

Upstream Highlighting

1. In the Model Slicer window, set Signal propagation to upstream.

2. In the slicer_simulink_func model, select output Out1. Right-click Out1 and under Model Slicer, select Add as Starting Point. Model Slicer highlights the dependency of output Out1 in the upstream direction.

3. Double-click the Simulink Function1 and subsys_calc subsystem and you can observe the dependencies. Output Ou1 traces back to the Function Caller block subsys_calc.func_calc, the corresponding Simulink function for the block is defined in subsys_calc.

Downstream Highlighting

1. In the Model Slicer window, click clear all for Starting points and set the Signal propagation to downstream.

2. In the subsys_calc subsystem, select the ArgIn input parameter u as the starting point. Right-click u, and under Model Slicer, select Add as Starting Point. Model Slicer highlights the dependency of input u in the downstream direction from Function Caller subsys_calc.func_calc to the Simulink Function defined under susbys_calc.