systems

List nonvirtual subsystems in model or model hierarchy during simulation debugging session

Syntax

systems

Description

systems displays in the MATLAB^® Command Window a list of nonvirtual subsystems in the model or model hierarchy being simulated in the active simulation debugging session. When the active simulation debugging session is for a model hierarchy, the list of nonvirtual subsystems is grouped by model.

The systems function displays only nonvirtual subsystems and not virtual subsystems.

You can use this function in a simulation debugging session started:

• Interactively, using the Simulink^® Toolstrip

• Programmatically, using the sldebug function

• Programmatically, using the sim function with the 'debug' name-value argument

Note

This function is available only for simulation debugging sessions started programmatically and for interactive simulation debugging sessions while paused within a time step.

Tips

To start a simulation debugging session interactively, add one or more breakpoints to your model, and in the Breakpoints List, check that Pause within time step is selected. When the simulation pauses on a breakpoint, some of the programmatic debugging commands, such as the stop command, are available for use in the MATLAB Command Window.

Version History

Introduced before R2006a

R2024a: sldebug prompt in MATLAB Command Window indicates when simulation debugging session is paused within time step

When you start a simulation debugging session using the Simulink Editor, you can issue some programmatic simulation debugging commands, such as probe or stop, while the simulation is paused within a time step. The sldebug command prompt (sldebug>>) now replaces the MATLAB command prompt (>>) to indicate in the MATLAB Command Window when the simulation is paused within a time step. As in prior releases, you can issue both MATLAB commands and the supported simulation debugging commands at the sldebug command prompt.

For more information, see Simulink Debugging Programmatic Interface.