Using Simulink

Creating Subsystems

As your model increases in size and complexity, you can simplify it by grouping blocks into subsystems. Using subsystems has these advantages:

• It helps reduce the number of blocks displayed in your model window.
• It allows you to keep functionally related blocks together.
• It enables you to establish a hierarchical block diagram, where a Subsystem block is on one layer and the blocks that make up the subsystem are on another.

You can create a subsystem in two ways:

• Add a Subsystem block to your model, then open that block and add the blocks it contains to the subsystem window.
• Add the blocks that make up the subsystem, then group those blocks into a subsystem.

Creating Annotations Programmatically

Creating a Subsystem by Adding the Subsystem Block