Debugging a Simulation

The Simulink debugger is an interactive tool for examining simulation results and locating and diagnosing unexpected behavior in a Simulink model. It lets you quickly pinpoint problems in your model by stepping through a simulation one method at a time and examining the results of executing that method. (Methods are functions that Simulink uses to solve a model at each time step during the simulation. Blocks are made up of multiple methods.)

The Simulink debugger lets you set breakpoints, control the simulation execution, and display model information. It can be run from a graphical user interface (GUI) or from the MATLAB command line. The GUI provides a clear, color-coded view of the model’s execution status. As the model simulates, you can display information on block states, block inputs and outputs, and other information, as well as animate block method execution directly on the model.

The Simulink debugger GUI lets you step through the simulation one method at a time, or run to a breakpoint. Click on image to see enlarged view.