In command-line mode, you control the debugger by entering commands
at the debugger command line in the MATLAB® Command Window. To
enter commands at the debugger command line, you must start the debugger
programmatically and not through the GUI. Use
sldebug for this purpose. The debugger
accepts abbreviations for debugger commands. For more information
on debugger commands, see Simulink Debugger.
Note: You can repeat some commands by entering an empty command (i.e., by pressing the Enter key) at the command line.
Some of the Simulink® software commands and messages use method IDs to refer to methods. A method ID is an integer assigned to a method the first time the method is invoked. The debugger assigns method indexes sequentially, starting with 0.
Some of the debugger commands and messages use block IDs to
refer to blocks. Block IDs are assigned to blocks while generating
the model's sorted lists during the compilation phase of the simulation.
A block ID has the form
an integer identifying the system that contains the block (either
the root system or a nonvirtual subsystem) and
the position of the block in the system's sorted list. For example,
the block ID
0:1 refers to the first block in the
model's root system. The
shows the block ID for each debugged block in the model.
You can enter any MATLAB expression at the
For example, suppose you are at a breakpoint and you are logging time
and output of your model as
The following command creates a plot.
(sldebug ...) plot(tout, yout)
You cannot display the value of a workspace variable whose name
is partially or entirely the same as that of a debugger command by
entering it at the debugger command prompt. You can, however, use
eval command to work around this problem. For
eval('s') to determine the value of
s(tep) the simulation.