Using Simulink

Manipulating Block Names

All block names in a model must be unique and must contain at least one character. By default, block names appear below blocks whose ports are on the sides, and to the left of blocks whose ports are on the top and bottom, as this figure shows.

Changing Block Names

You can edit a block name in one of these ways:

• To replace the block name on a Microsoft Windows or UNIX system, click the block name, double-click or drag the cursor to select the entire name, then enter the new name.
• To insert characters, click between two characters to position the insertion point, then insert text.
• To replace characters, drag the mouse to select a range of text to replace, then enter the new text.

When you click the pointer anywhere else in the model or take any other action, the name is accepted or rejected. If you try to change the name of a block to a name that already exists or to a name with no characters, Simulink displays an error message.

You can modify the font used in a block name by selecting the block, then choosing the Font menu item from the Format menu. Select a font from the Set Font dialog box. This procedure also changes the font of text on the block icon.

You can cancel edits to a block name by choosing Undo from the Edit menu.

Note    If you change the name of a library block, all links to that block become unresolved.

Changing the Location of a Block Name

You can change the location of the name of a selected block in two ways:

• By dragging the block name to the opposite side of the block.
• By choosing the Flip Name command from the Format menu. This command changes the location of the block name to the opposite side of the block.

For more information about block orientation, see Changing the Orientation of a Block.

Changing Whether a Block Name Appears

To change whether the name of a selected block is displayed, choose a menu item from the Format menu:

• The Hide Name menu item hides a visible block name. When you select Hide Name, it changes to Show Name when that block is selected.
• The Show Name menu item shows a hidden block name.

Changing a Block's Appearance

Specifying a Block's Color