## A.1 Namespace and identifiers for IEC 61131-3 Information Model

This appendix defines the numeric identifiers for all of the numeric NodeIds defined in this specification. The identifiers are specified in a CSV file with the following syntax:

<SymbolName>, <Identifier>, <NodeClass>


Where the SymbolName is either the BrowseName of a Type Node or the BrowsePath for an Instance Node that appears in the specification and the Identifier is the numeric value for the NodeId.

The BrowsePath for an Instance Node is constructed by appending the BrowseName of the instance Node to the BrowseName for the containing instance or type. An underscore character is used to separate each BrowseName in the path. Let’s take for example, the CtrlConfigurationType ObjectType Node which has the ParameterSet Object. The Name for the ParameterSet InstanceDeclaration within the CtrlConfigurationType declaration is: CtrlConfigurationType_ParameterSet.

The NamespaceUri for all NodeIds defined here is http://PLCopen.org/OpcUa/IEC61131-3/

A computer processible version of the complete Information Model defined in this specification is also provided. It follows the XML Information Model schema syntax defined in OPC 10000-6.

The Information Model Schema released with this version of the specification can be found here:

http://www.opcfoundation.org/UA/schemas/PLCOpen/1.02/Opc.Ua.PLCopen.NodeSet2_V1.02.xml