User`s guide

22 Creatin

and Editin

Models

What happens if

ou don’t save the instance

model

Before the schematic editor starts the Parts utility, 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 local use, if not

already done.

• Assigns the new instance model name to the MODEL

attribute for the selected part instance.

This means that if you:

• cancel the Parts utility session, or

• return to Schematics to simulate the design

without first saving the model you are editing, the part instance

on your schematic still refers to the instance model.

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 local, edit the instance

model in the local library, using the model editor.

• If you want the change to be global, change the model

reference for the part instance on your schematic back to the

original model name in the global library, and then edit the

original model in the symbol editor.

To find out how to chan

e model

references, see

Changing the

Model Reference to an Existing

Model Definition on page 4-38.