Using Simulink

Breaking a Link to a Library Block

You can break the link between a reference block and its library block to cause the reference block to become a simple copy of the library block, unlinked to the library block. Changes to the library block no longer affect the block. Breaking links to library blocks may enable you to transport a model as a stand-alone model, without the libraries.

To break the link between a reference block and its library block, first disable the block. Then select the block and choose Break Library Link from the Link options menu. You can also break the link between a reference block and its library block from the command line by changing the value of the LinkStatus parameter to 'none' using this command:

• set_param('refblock', 'LinkStatus', 'none')
  

You can save a system and break all links between reference blocks and library blocks using this command:

• save_system('sys', 'newname', 'BreakLinks')
  

Note    Breaking library links in a model does not guarantee that you can run the model stand-alone, especially if the model includes blocks from third-party libraries or optional Simulink blocksets. It is possible that a library block invokes functions supplied with the library and hence can run only if the library is installed on the system running the model. Further, breaking a link can cause a model to fail when you install a new version of the library on a system. For example, suppose a block invokes a function that is supplied with the library. Now suppose that a new version of the library eliminates the function. Running a model with an unlinked copy of the block results in invocation of a now nonexistent function, causing the simulation to fail. To avoid such problems, you should generally avoid breaking links to third-party libraries and optional Simulink blocksets.

Creating a Library Link

Finding the Library Block for a Reference Block