User Guide

Using the Model Editor to edit models
103
What happens if you don’t save the instance model
Before the schematic page editor starts the Model Editor,
it does these things:
• Makes a copy of the original model and saves it as an
instance model in SCHEMATIC_NAME.LIB.
• Configures SCHEMATIC_NAME.LIB for design use, if
not already done.
• Attaches the new instance model name to the
Implementation property for the selected part
instance.
This means that if you:
• quit the Model Editor, or
• return to Capture to simulate the design
without first saving the model you are editing, the part
instance on your schematic page is still attached to the
instance model implementation.
In this case, the instance model is identical to the original
model. If you decide to edit this model later, be sure to do
one of the following:
• If you want the changes to remain specific to the
current design, edit the instance model in the design
library, using the Model Editor.
• If you want the change to be global, change the model
implementation for the part instance in your design
back to the original model name in the global library,
and then edit the original model from within the part
editor.
To
f
in
d
out
h
ow to c
h
ange mo
d
e
l
references, see Changing the model
reference to an existing model
definition on page 4-117.
Pspug.book Page 103 Wednesday, November 11, 1998 1:14 PM