Simulating Simulink Models with the sim Command

Use this skill to generate simulation results for analysis. For persistent, reusable pass/fail behavioral testing (especially of individual subsystems), use testing-simulink-models instead.

When to Use

• Running a Simulink model from a MATLAB script
• Configuring simulation parameters (StopTime, solver, etc.) programmatically
• Passing input signals to root-level Inport blocks
• Accessing logged signal data after simulation
• Running parameter sweeps or batch simulations

When NOT to Use

• Writing declarative Gherkin-based tests → use testing-simulink-models
• Testing an individual subsystem or component → use testing-simulink-models (requires Simulink Test; auto-creates a harness, compiles only the subsystem — much faster than sim() which always compiles the entire model)

Minimal working pattern