DataType

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DataType

Enum Property filled when E3 connects to an OPC UA server, which indicates the data type on the OPC UA server. This property is initially filled during the browsing process, if performed, and in any communication or connection to the OPC UA server. Values below 1,000 are scalar and values above 1,000 are arrays. This is a read-only property. Possible values for this property are the following:

17: udtNodeId (OPC UA Node Identifier, formatted as a three-element array in E3)

18: udtExpandedNodeId (Expanded OPC UA Node Identifier, formatted as a three-element array in E3)

22: udtStructure (Indicates this is an OPC UA complex data type, but not specific, formatted as an array where each element is a member of the structure)

25: udtDiagnosticInfo

1000: udtArrayUnknown (Generic array, with unknown data types)

1001: udtArrayBoolean

1002: udtArraySByte

1003: udtArrayByte

1004: udtArrayInt16

1005: udtArrayUInt16

1006: udtArrayInt32

1007:  udtArrayUInt32

1008: udtArrayInt64

1009: udtArrayUInt64

1010: udtArrayFloat

1011: udtArrayDouble

1012: udtArrayString

1013: udtArrayDateTime

1014: udtArrayGuid

1015: udtArrayByteString

1016: udtArrayXmlElement

1017: udtArrayNodeId

1018: udtArrayExpandedNodeId

1019: udtArrayStatusCode

1020: udtArrayQualifiedName

1021: udtArrayLocalizedText

1022: udtArrayStructure

1023: udtArrayDataValue

1024: udtArrayVariant

 

NOTES

Structures defined by specific servers, not compatible with the OPC UA standard, are not read by E3.

Data types udtArrayQualifiedName, udtArrayLocalizedText, udtStructure, udtArrayStructure, udtArrayDataValue, and udtArrayUnknown do not allow writing in the current version of E3, because E3 uses a simplified formatting of these data types.

Data types ServiceCounterDataType (array with two positions), BuildIndfo (array with six positions), Argument (array with six positions), ApplicationDescription (array with eight positions), SessionDiagnosticsDataType (array with 44 positions), SessionSecurityDiagnosticsDataType (array with 10 positions), SubscriptionsDiagnosticsDataType (array with 31 positions), ServerDiagnosticsSummaryDataType (array with 12 positions), ServerStatusDataType (array with six positions), EuInformation (array with four positions), Range (array with two positions), TimeZoneDataType (array with two positions), DiagnosticInfo (array with seven positions), StatusResult (array with two positions), ComplexNumberType (array with two positions), DoubleComplexNumberType (array with two positions), XVType (array with two positions), RedundanteServerSataType (array with three positions), SamplingIntervalDiagnosticsDataType (array with four positions), EnumValueType (array with three positions), EndpointUrlListDataType (array with two positions), and NetworkGroupDataType (array with three positions) are displayed as udtStructure, but E3 handles the specific data type.

In the current version, E3 only allows single-dimension arrays, that is, it does not allow matrices as data types.

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