Using Simulink    

Finding the Library Block for a Reference Block

To find the source library and block linked to a reference block, select the reference block, then choose Go To Library Link from the Link options submenu of the model window's Edit or context menu. If the library is open, Simulink selects and highlights the library block and makes the source library the active window. If the library is not open, Simulink opens it and selects the library block.

Library Link Status

All blocks have a LinkStatus parameter that indicates whether the block is a reference block. The parameter can have these values.

Status
Description
none
Block is not a reference block.
resolved
Link is resolved.
unresolved
Link is unresolved.
implicit
Block is within a linked block.
inactive
Link is disabled.


  Breaking a Link to a Library Block Displaying Library Links