2008

Set up peer-to-peer component relationships
The following example has a valve representation on
an instrument drawing, FE100, and its equivalent on
the electrical schematic, SOL2500. They are the same
physical device, but carry different tags based on the
drawing discipline in which they appear. Though
each device is represented as a parent symbol, you
can set up a peer-to-peer relationship between them
so that the electrical schematic's tag name automat-
ically cross-references to the instrument drawing,
and the instrument bubble's tag cross-references to
the schematic's tag.
The instrument bubble symbol is set up with an op-
tional split tag. Instead of a single TAG1 attribute, it
has 2 tags: TAG1 PART1 and TAG1 PART2. The instru-
ment bubble is also set up as a normal AutoCAD
Electrical parent schematic symbol without the wire
connection points. It includes 2 extra attributes bey-
ond what a normal parent symbol carries:
■ WDTAGALT - carries a copy of the schematic
symbol's TAG1 value.
■ WDTYPE - an invisible attribute with a nonblank
value indicating the drawing discipline. Example:
"PID" or "IN" or "PNEU" or "HYD."
The schematic parent solenoid symbol includes just
one extra attribute: WDTAGALT carries a copy of the
instrument bubble's value.
Your drawings must be part of the active AutoCAD Electrical project so that
the WDTAGALT value on the instrument drawing is automatically updated
when you edit the schematic parent tag name and vice versa. Using AutoCAD
Electrical SURF on one automatically includes the other in the surf pick
window.
1 Open the Project Manager.
2 Open the project containing the instrument and schematic drawings.
3 On the Project Manager, double-click the schematic drawing to open it.
4 Zoom in so that your schematic symbol is visible.
1188 | Chapter 19 Advanced Productivity