How can I verify from the MATLAB Command Window if my Simulink has been modified?

The modification of a Simulink model is visible by the star(*)-sign at the right-side of the model name. When the Simulink model is modified I would like to save it using a MATLAB command.

Answer 1

[MathWorks Support Team]

This change has been incorporated into the documentation in Release 2009a. The following documentation link explains how you may achieve this functionality.

https://www.mathworks.com/help/simulink/ug/save-models.html

For previous releases, read below for any additional information:

1. Using the GET_PARAM function, for getting system and block parameters, with the DIRTY model parameter, a Simulink model can be checked if it is changed or not. Type the following command at the MATLAB Command Window:

get_param(gcs,'dirty')

If the output is OFF, then it implies that no change has been made. If the output is ON then a change has been made to MDL.

More info of the GET_PARAM function is shown at the following weblink:

https://www.mathworks.com/help/simulink/slref/get_param.html

2. The Simulink model can be saved from the Matlab command window using the save_system command. More information about this function can be found at the following weblink:

https://www.mathworks.com/help/simulink/slref/save_system.html