ObjectNode 
The fields of the ObjectNode DataType are defined in the following table:
| Name | Type |
|---|---|
| ObjectNode | Structure |
| eventNotifier | Byte |
The representation of the ObjectNode DataType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | i=261 |
| NamespaceUri | http://opcfoundation.org/UA/ |
| BrowseName | ObjectNode |
| IsAbstract | False |
| SubtypeOf | InstanceNode |
| Categories |