AdditionalComponents is a container for one or more instances of subtypes of ComponentType defined in OPC UA DI. The listed components are installed at the motion device, e.g. an IO-board.

NOTE: Components like motors or gears of a motion device are placed inside the power train object and not inside this AdditionalComponents container.

Table 20 – TypeDefinition of AdditionalComponents of MotionDeviceType

Attribute	Value
BrowseName	AdditionalComponents
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
HasComponent	Object	<AdditionalComponentIdentifier>		2:ComponentType	MandatoryPlaceholder

The AuxiliaryComponentType and DriveType are the only subtypes of ComponentType for use in this container which are described in this specification. The intention is to integrate inside this container devices which are defined in other companion specifications using DI.