In this example, you add the attributes: TAG1, DESC1, LOC, INST, FAMILY, MFG, CAT, and ASSYCODE. You are not limited to these attributes and you can include your own user-defined attributes on the AutoCAD Electrical block files.
Note: The TAG1 attribute is the only one required for a parent schematic symbol. The other attributes in the Required section are expected on a parent schematic symbol, however the symbol is recognized as a parent symbol without them.
Click Symbol Builder tab Edit panel Palette Visibility Toggle.
Use this palette to assign attributes to the rectangle as well as set the height and justification for each attribute. The palette displays the AutoCAD Electrical attributes that you can insert and define as part of the symbol. Once an attribute is inserted on the symbol a check mark displays next to it and you cannot insert it again. AutoCAD Electrical allows only one insertion of each attribute.
It is the default code used as the %F value of the tag format (such as "CR" , "PB", "LT")
Insert the attribute above the rectangle.
In the Symbol Builder Attribute Editor, notice the check mark next to the TAG1 attribute. Continue placing the rest of the attributes.
Click the Insert Attribute tool.
This assigns the %F value to the FAMILY attribute inserted.