Instantiated IED Description (IID) file: It defines the configuration of one IED for a project and is used as data exchange format from the IED configurator to the system configurator.
This file contains only the data for the IED being configured: one IED section, the communication section with the IED's communication parameters, the IED's data type templates, and, optionally, a substation section with the binding of functions (LNodes) to the single line diagram.