ProcessVariableType 
Provides a stable address space view from the user point of view even if the ADI server address space changes, after the new configuration is loaded.
The representation of the ProcessVariableType VariableType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | ns=1;i=2008 |
| NamespaceUri | http://opcfoundation.org/UA/ADI/ |
| BrowseName | ProcessVariableType |
| NodeClass | VariableType |
| DataType | BaseDataType |
| ValueRank | -2 |
| IsAbstract | False |
| SubtypeOf | DataItemType |
The references from the ProcessVariableType VariableType Node are shown in the following table:
| Reference | NodeClass | BrowseName | DataType | TypeDefinition | ModellingRule |
|---|---|---|---|---|---|
| HasDataSource | Variable | <Source> | BaseDataType | BaseVariableType | MandatoryPlaceholder |