10 OPC UA DataTypes 
10.4 Enumeration datatypes
10.4.8 RangeType
RangeType is an enumeration that defines the available types of range limits. Its values are defined in Table 48.
| Name | Value | Description |
|---|---|---|
| LowerRange | 0 | Device data represents a lower range. |
| UpperRange | 1 | Device data represents an upper range. |