NodeId 
The representation of the NodeId DataType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | i=17 |
| NamespaceUri | http://opcfoundation.org/UA/ |
| BrowseName | NodeId |
| IsAbstract | False |
| SubtypeOf | BaseDataType |
| Categories | Base Info Base Types |
The references from the NodeId DataType Node are shown in the following table:
| Reference | NodeClass | BrowseName | DataType | TypeDefinition | ModellingRule |
|---|---|---|---|---|---|
| HasSubtype | DataType | SessionAuthenticationToken |