An instance of a subtype of this abstract ObjectTyperepresents network address information. The NetworkAddressTypeis formally defined in Table A.12.

Table A.12– NetworkAddressType Definition

Attribute	Value
BrowseName	NetworkAddressType
IsAbstract	True
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of BaseObjectType defined in OPC 10000-5.
HasComponent	Variable	NetworkInterface	String	SelectionListType	Mandatory
HasSubtype	ObjectType	NetworkAddressUrlType	Defined in A.3.2.

The NetworkInterface Variableallows the selection of the network interface used for the communication relation. The network interface can be listed by name, by IP address or a combination of name and IP address. The SelectionValues Propertyof the SelectionListTypeshall contain the list of available network interfaces as application specific strings. The Value of the Variable contains the selected network interface as String. The SelectionListTypeis defined in OPC 10000-5. The Objectmay allow providing additional Stringsnot defined in the SelectionValues. In this case the NotRestrictToList Propertyof the SelectionListTypeis set to true.

An instance of this ObjectTyperepresents network address information in the form of an URL String. The NetworkAddressUrlTypeis formally defined in Table A.13.

Table A.13– NetworkAddressUrlType Definition

Attribute	Value
BrowseName	NetworkAddressUrlType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of NetworkAddressType defined in A.3.1.
HasComponent	Variable	Url	String	BaseDataVariableType	Mandatory

The URL Variablecontains the address string for the communication middleware or the communication relation. The syntax of the URL is defined by the transport protocol.