7.25 OrientationType ToC Previous Next

This abstract VariableType is used as base to define multi-dimensional orientations. Subtypes need to define the concrete number of dimensions. It reflects the semantic of its DataType, defined in 12.28. Subtypes shall expose the structure of their structured DataTypes as Variables. Additionally, it can define a unit for the orientation angles (Property AngleUnit). The VariableType is formally defined in Table 83.

Table 83 – OrientationType Definition

Attribute Value
BrowseName OrientationType
IsAbstract True
ValueRank Scalar
DataType Orientation

Subtype of the BaseDataVariableType defined in 7.4.

References NodeClass BrowseName DataType TypeDefinition Modelling Rule
HasProperty Variable AngleUnit EUInformation PropertyType Optional

AngleUnit defines the unit of each dimension of the orientation. The DataType EUInformation is defined in OPC 10000-8. Note that the Property EngineeringUnits is intentionally not used, as it would have to define the engineering unit of the full cartesian coordinates, not its individual dimensions

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