2011

Attribute Requirements
Schematic attributes
Overview of schematic attributes
The following items are attribute requirements for various categories of
schematic symbols. Some attributes are used in multiple categories.
Schematic parent and child components
DescriptionAttribute
(Parent only) Attribute for required component tag name (64 charac-
ters maximum). The default value you assign to this attribute definition
TAG1
becomes the family code character string AutoCAD Electrical uses to
build the tag name of the component when the block is inserted into
your schematic. This default value character string is used as the
Family Code (%F) portion of the tag format code of the drawing you
set up in the Drawing Properties dialog box.
Example: The TAG1 attribute definition on the symbol carries a default
value of "MCR" and the tag format of the drawing is "%F%N" where
%N is the placeholder for the line reference number or next sequential
number. As each instance of this symbol is inserted, it is automatically
assigned a tag name with an "MCR" prefix tacked on to the reference
or next sequential number.
NOTE When a component is marked with a fixed tag, this attribute
name is automatically changed with a "F" suffix (that is, TAG1 ➤
TAG1F).
(Child only) This is a copy of the parent component's tag name of
the component (64 characters maximum). If no parent tag is found
TAG2
then AutoCAD Electrical displays the attribute default value of the
definition (for example, "MCR" or "PB" or "X").
(Parent only) Alternate to using a single TAG1 attribute (64 characters
maximum). This allows the component tag name to be split into two
TAG1_PART1
TAG1_PART2
pieces (example: two lines - "MDOT" on first line and "123" on the
second line for a full tag name of "MOT123"). AutoCAD Electrical
pastes the values on these two attributes together when it processes
306 | Chapter 5 Symbol Libraries