VerticalSubClassType 
An indication of the position of a mechanism that may move in a vertical direction. An indication of the position of a mechanism that may move in a vertical direction. The mechanism is represented by a composition type component. The position information indicates whether the composition element is positioned to the top, to the bottom, or is in transition. The valid data value must be up value, down value, or transitioning value.
The representation of the VerticalSubClassType ObjectType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | ns=1;i=2606 |
| NamespaceUri | http://opcfoundation.org/UA/MTConnect/v2/ |
| BrowseName | VerticalSubClassType |
| NodeClass | ObjectType |
| IsAbstract | False |
| SubtypeOf | MTDataItemSubClassType |