Note: You can no longer manually add a GIO to a LON trunk; however, the GIO is still supported in existing databases, even after upgrading to the next software release.
In LonWorks network integration, the GIO presents multiple LonWorks network variables (with their individual data elements) and/or NexSys controller points of an integrated LonWorks network controller as a single Metasys object. During the configuration of a GIO for an integrated LonWorks network controller, the user is presented with the internal network variables and NexSys controller points in a tree structure which then allows the user to add these data points as attributes of the GIO object. The characteristics of the GIO attributes (label, units, display precision, field units, category) and the commandability of the GIO attributes can be edited.