User`s guide

4
-
38 Creatin
g
and Editin
g
Models
schematic_name.sub
as either a model library or include
file (see Configuring Model Libraries
on page 4-41).
7
If necessary, refine the subcircuit definition for the new
symbol or for a part instance on your schematic using the
model editor (see Using the Model Editor
on page 4-29).
8
From the File menu, select Edit Library to start the symbol
editor.
9
Define a new symbol for the subcircuit definition.
One way to do this is to use the symbol wizard. See Chapter
5,Creating Symbols for Models for a complete discussion.
Chan
g
in
g
the Model
Reference to an Existin
g
Model Definition
Symbols are linked to models by the model name assigned to the
symbols’ MODEL attribute. You can change this assignment by
replacing the MODEL attribute value with the name of a
different model that already exists in the library.
You can do this for:
• A part instance in your schematic.
• A symbol in the symbol library.
To chan
g
e model references for part instances on
y
our schematic
1
Find the name of the model that you want to use.
2
In the schematic editor, select one or more symbols on your
schematic.
3
From the Edit menu, select Model.
4
Click Change Model Reference.
Refinements can include
extendin
g
the subcircuit
definition usin
g
the optional
nodes construct, OPTIONAL:,
the variable parameters
construct, PARAMS:, and the
.FUNC and local .PARAM
commands.