Libraries and Blocksets

Use libraries and blocksets to organize blocks and their auxiliary files, such as external data files, graphic files, HTML help files, and MATLAB^® scripts. Libraries enable you to standardize components across projects, providing consistency and reducing development time. When you use library blocks in a model, the library block serves as the prototype and its instance in the model is a linked block, that appears and behaves just like the prototype. Using linked blocks is particularly useful when you want consistent behavior across all instances of a block that you frequently reuse in models.

You can use the built-in libraries from the Simulink^® Library browser. However, you cannot modify these libraries. Alternatively, you can create custom libraries for your specific needs. For information on using built-in libraries, see Block Libraries. To start creating your own libraries, see Create Custom Library.