Assign an item or detail number to the main part number of a component or each multiple catalog part number through the Insert/Edit dialog box. It is stored as a data value on the block itself. To bring this item number out to a visible label, a balloon for example, use the Insert Balloon command and pick somewhere on the block. The item number of the component is retrieved, and then you are prompted to select start/end for a leader.
Prompts direct you to select points for an optional leader arrow. When the item number changes on the component, the item number in a balloon updates automatically. You define the balloon type, text size, and arrow type with balloon setup.
If the component has multiple item numbers, a multiple balloon is built up showing all item numbers. The balloon direction can be defined during insertion.
Balloons update automatically if the item numbers of the component are changed through the edit dialog box.
A single item number attribute, B_ITEM, is inserted on the balloon symbol. You can set up a template to have additional visible attributes added to the balloon automatically at insertion time. Create this drawing with the attribute definitions you want to include with the balloon symbol:
\panel\wd_ptag_addattr_itemballoon.dwg.
If an existing template is found, a copy of it gets merged with the balloon. AutoCAD Electrical does not update these attributes. Use ATTEDIT to update extra attributes.