The UANodeSetis the root of the document. It defines a set of Nodes, their Attributesand References. Referencesto Nodesoutside of the document are allowed.
The structure of a UANodeSetis shown in Table F.1.
|
Element |
Type |
Description |
|
NamespaceUris |
UriTable |
A list of NamespaceUrisused in the UANodeSet. |
|
ServerUris |
UriTable |
A list of ServerUrisused in the UANodeSet. |
|
Models |
ModelTableEntry [] |
A list of Models that are defined in the UANodeSet along with any dependencies these models have. |
|
ModelUri |
String |
The URI for the model. This URI should be one of the entries in the NamespaceUris table. |
|
Version |
String |
The version of the model defined in the UANodeSet. This is a human readable string and not intended for programmatic comparisons. |
|
PublicationDate |
DateTime |
When the model was published. This value is used for comparisons if the Model is defined in multiple UANodeSet files. |
|
RolePermissions |
RolePermissions [] |
The list of default RolePermissionsfor all Nodesin the model. |
|
AccessRestrictions |
AccessRestrictions |
The default AccessRestrictionsthat apply to all Nodes in the model. |
|
RequiredModels |
ModelTableEntry [] |
A list of dependencies for the model. If the model requires a minimum version the PublicationDateshall be specified. Tools which attempt to resolve these dependencies may accept any PublicationDateafter this date. |
|
Aliases |
AliasTable |
|
|
Extensions |
xs:any |
An element containing any vendor defined extensions to the UANodeSet. |
|
LastModified |
DateTime |
The last time a document was modified. |
|
<choice> |
UAObject UAVariable UAMethod UAView UAObjectType UAVariableType UADataType UAReferenceType |
The NamespaceUrisis a list of URIs for namespaces used in the UANodeSet. The NamespaceIndexes used in NodeId, ExpandedNodeIdsand QualifiedNamesidentify an element in this list. The first index is always 1 (0 is always the OPC UA namespace).
The ServerUrisis a list of URIs for Serversreferenced in the UANodeSet. The ServerIndexin ExpandedNodeIdsidentifies an element in this list. The first index is always 1 (0 is always the current Server).
The Models element specifies the Models which are formally defined by the UANodeSet. It includes version information as well as information about any dependencies which the model may have. If a Model is defined in the UANodeSetthen the file shall also define an instance of the NamespaceMetadataType ObjectType. See OPC 10000-5for more information.
The Aliasesare a list of string substitutions for NodeIds. Aliasescan be used to make the file more readable by allowing a string like ‘HasProperty’ in place of a numeric NodeId (i=46). Aliasesare optional.
The Extensionsare free form XML data that can be used to attach vendor defined data to the UANodeSet.