2008

block properties. If a block property is modified, all of the terminal symbols
update.
The terminal symbols are associated by an ID value held on the LINKTERM
attribute or xdata. When a terminal symbol is inserted, by default it is seen
as a standalone terminal (it has no associations) and receives a new LINKTERM
value. When the terminal is associated to another, the LINKTERM value
updates so that each terminal carries the same LINKTERM value. Changing
or removing the LINKTERM value breaks any associations that terminal may
have.
To associate schematic terminals, you first need to add block properties. The
number of terminals you can associate is limited to the number of levels
defined in the block properties. Once block properties are established you can
associate schematic terminals to build a multi-level terminal block by:
■ Clicking the Components ➤ Terminals ➤ Associate Terminals tool. You
select a master terminal and then select each terminal symbol to associate
to the master.
■ Clicking Pick on the Insert/Edit Terminal Symbol dialog box. This adds
the edited symbol into an association with the picked terminal.
■ Clicking Add/Modify on the Insert/Edit Terminal Symbol dialog box. This
adds the edited symbol into an association with any schematic terminal
in the project.
Prebuilt circuits may contain associated terminals. These relationships are
maintained when the circuit is inserted. Copying a circuit also maintains these
relationships within the copied circuit.
When the Bill of Materials report is run, these separate terminal symbols that
make up one multi-level terminal, are counted as one in the quantity.
Schematic-to-Panel
The schematic-to-panel relationship is used mainly for updating. If the
schematic or panel is modified, the other updates to reflect the changes. This
relationship is similar to component relationships, which are based on the
TAG value. The TAGSTRIP, Installation and Location values need to match
for the terminals to associate together and the association number on the
LINKTERM is also taken into account when creating a relationship between
the schematic terminal and its panel representation. Block properties are not
required to associate a schematic to panel terminal. Once they are associated,
modifications on one results in modifications on the other.
Overview of terminal relationships | 569