Using Simulink

Controlling Access to Subsystems

Simulink allows you to control user access to subsystems that reside in libraries. In particular, you can prevent a user from viewing or modifying the contents of a library subsystem while still allowing the user to employ the subsystem in a model.

To control access to a library subsystem, open the subsystem's parameter dialog box and set its Access parameter to either ReadOnly or NoReadOrWrite. The first option allows a user to view the contents of the library subsystem and make local copies but prevents the user from modifying the original library copy. The second option prevents the user from viewing the contents of, creating local copies, or modifying the permissions of the library subsystem. See the Subsystem block for more information on subsystem access options. Note that both options allow a user to use the library system in models by creating links (see Working with Block Libraries).

Labeling Subsystem Ports

Creating Conditionally Executed Subsystems