NiagaraSysDefDeviceExt (Sys Def) is included among the collection of device extensions under any NiagaraStation component, and is chiefly of interest to developers. This Sys Def extension has two child container properties, “RoleManager” and “SyncTask”, each with a collection of related properties. Together with the NiagaraNetwork’s “Sys Def Provider” (BogProvider) component, the API helps define the organization of stations in a NiagaraNetwork in a known hierarchy, and allows synchronization of basic information up that hierarchy.

For more details, About Sys Def components.