IED templates
An IED template is related to a Virtual IED drawn in the Function diagram
The library also has the provision to reuse entire Virtual IED as templates. However, Virutal IED are assigne to functions that are typically stored as library elements of their own template.
Creating a IED from the library will then reference these independent library elements.
Modifying element template that is used by composite library element (e.g. function or equipment) will affect all composite library elements (Bays, IEDs, Processes) that use them!
Content
All the following information related to Virtual IED are store in the library:
Virtual IED properties
Logical device structure and function assignation
Association to Function template and Equipment function template
Then IED Template can be composed of other library element (Equipment function template, Function template)
Representation on library
The IED is exposed on the library within the Library Manager over the IEDs tab.

Library manager IEDs
Add to library
The add process is done with a right mouse click on the Virtual IED and using the contextual menu “add to library”.
Because this element can be composed of other element (Function template) adding a IED to the library is a more complex operation, as the library keys of the contained element must be managed as well:

Add IED to the library dialog
As with other library element a library key must be specified in the ‘Add Bay to Library’ dialog.
In addition, there is a list of the components of the bay is exposed for information.
Update from library
Update from library isn’t available for IED element.
Usage
After an IED has been added to the library, its ‘Template’ property will show the library key, and the IED becomes available in the area of the editing palette under Virtual IEDs :

When a bay library element is used, a dialog is shown to customize the new Virtual IED. This dialog shows a list of element that can be instantiated as part of the IED.

Deselecting checkmarks in this dialog will omit the deselected element from the new bay.