Using Simulink

Displaying Library Links

Simulink optionally displays an arrow in the bottom left corner of each icon that represents a library link in a model.

This arrow allows you to tell at a glance whether an icon represents a link to a library block or a local instance of a block. To enable display of library links, select Library Link Display from the model window's Format menu and then select either User (displays only links to user libraries) or All (displays all links).

The color of the link arrow indicates the status of the link.

Color	Status
Black	Active link
Grey	Inactive link
Red	Active and modified

Finding the Library Block for a Reference Block

Getting Information About Library Blocks