OPC Foundation
  • Documents
  • NodeSets
  • Search
7.11 ExpandedNodeId

The components of this parameter are defined in Table 136. ExpandedNodeIdallows the namespace to be specified explicitly as a string or with an index in the Server's namespace table.

Table 136– ExpandedNodeId

Name

Type

Description

ExpandedNodeId

structure

The NodeIdwith the namespace expanded to its string representation.

serverIndex

Index

Index that identifies the Serverthat contains the TargetNode. This Servermay be the local Serveror a remote Server.

This index is the index of that Serverin the local Server’s Servertable. The index of the local Serverin the Servertable is always 0. All remote Servershave indexes greater than 0. The Servertable is contained in the Server Objectin the AddressSpace(see OPC 10000-3and OPC 10000-5).

The Clientmay read the Servertable Variableto access the description of the target Server.

namespaceUri

String

The URI of the namespace.

If this parameter is specified then the namespace index is ignored.

5.4and OPC 10000-12describes discovery mechanism that can be used to resolve URIs into URLs.

namespaceIndex

Index

The index in the Server's namespace table.

This parameter shall be 0 and is ignored in the Serverif the namespace URI is specified.

identifierType

IdType

Type of the identifier element of the NodeId.

identifier

*

The identifier for a Nodein the AddressSpaceof an OPC UA Server(see NodeIddefinition in OPC 10000-3).

Please report errors or issues with the site to webmaster.

Copyright © 2023 - OPC Foundation