About Logical Referencing
Logical referencing is transferring electrical design data between a diagram and a corresponding 3D cabling model, so that they can both store and use the same information, and reflect engineering change orders accurately.
Cabling assemblies can directly reference diagram (.dgm) files. You can also import a wirelist to a diagram or cabling assembly in Mentor Graphics, PTC Neutral format (.nwf), or XML format (.xml). You can export data from a diagram in PTC Neutral format or XML format (.xml). During the design process, you can compare the diagram and the 3D model object by object, to be sure that data is synchronized for both designs.