This DataType is a structure that defines the georeferenced location of an object on the earth’s surface in latitude, longitude and altitude using the World Geodetic System’s (WGS84) reference frame. Its composition is formally defined in Table 71.

Table 71– WGS84Coordinate Structure

Name

Type

Description

WGS84Coordinate

Structure

Subtype of Structure defined in OPC 10000-5.

N/S Hemisphere

String

‘N’ or ‘S’ for northern or southern hemisphere

Latitude

Double

Latitude in the unit defined by the GeographicalUnitproperty of the DeviceLocation Variable of the AutoID Devicedefined in 6.1.3.12.

E/W Hemisphere

String

‘E’ or ‘W’ for eastern or western hemisphere

Longitude

Double

Longitude in the unit by the GeographicalUnitproperty of the DeviceLocation Variable of the AutoID Devicedefined in 6.1.3.12.

Altitude

Double

Altitude in the unit by the GeographicalUnitproperty of the DeviceLocation Variable of the AutoID Devicedefined in 6.1.3.12.

Timestamp

UtcTime

Timestamp in UtcTime

DilutionOfPrecision

Double

DOP is a value for the variance of the measurements delivered by the location system. The calculation of the value depends on the underlying system and is vendor specific. Values should be in accordance with the implementations like in GNSS systems.

UsefulPrecisionLatLon

Int32

Values for Latitude and Longitude should be rounded by the client application to the n-th position after the decimal point.

It specifies the number of useful digits after the decimal place.

UsefulPrecisionAlt

Int32

Values for Altitude should be rounded by the client application to the n-th position after the decimal point.

It specifies the number of useful digits after the decimal place.

Its representation in the AddressSpace is defined in Table 72.

Attribute

Value

BrowseName

WGS84Coordinate

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

Other

Subtype of Structure defined in OPC 10000-5.

Table 72– WGS84Coordinate Definition