All instances of WwMachineType in a Server shall be referenced from the 3:Machines Object as defined in OPC 40001-1. This provides the capability to easily find all woodworking machines managed in a Server. The 3:Machines Object may contain other Nodes than instances of WwMachineType.
Each <Machine> Object represents an instance of a machine. In the simplest case, there is only one machine. The BrowseName of <Machine> should be unique within the Server. For woodworking machines it could be the 2:ProductInstanceUri of the 2:Identification Object of the 2:IVendorNameplateType.