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Scope: Core (OPC-10000-*) All specs

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OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.6.2 Range

Range This structure defines the Range for a value. Its elements are defined in Table 19 . Table 19 - Range DataType structure Name Type Description Range structure low Double Lowest value ... range. high Double Highest value in the range. NOTE For some DataTypes, e.g. Int64, UInt64, or Decimal, there can be a loss in precision in the representation of the range
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.3.2.2 BaseAnalogType

VariableType AnalogItemType Defined in 5.3.2.3 HasSubtype VariableType AnalogUnitType Defined in 5.3.2.4 HasProperty Variable InstrumentRange Range PropertyType Optional HasProperty Variable InstrumentNumberRange NumberRange PropertyType Optional HasProperty Variable EURange Range PropertyType Optional HasProperty ... Properties shall apply to all elements in the array. InstrumentRange defines the value range that can be returned by the instrument. EXAMPLE 1: InstrumentRange: := {-9999.9, 9999.9} Although defined as optional
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.3.4.2 YArrayItemType

YArrayItem contains the numerical values for the Y-Axis. Engineering Units and Range for the Value are defined by corresponding Properties inherited from the ArrayItemType . The DataType of this VariableType ... ComplexNumberType and DoubleComplexNumberType . The XAxisDefinition Property holds the information about the Engineering Units and Range for the X-Axis. The StatusCode SemanticsChanged bit shall
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.3.4.3 XYArrayItemType

XVType.x) and the value itself (XVType.value), used for the Y-Axis. Engineering units and range for the Value are defined by corresponding Properties inherited from the ArrayItemType . XAxisDefinition Property holds ... information about the Engineering Units and Range for the X-Axis. The axisSteps of XAxisDefinition shall be set to NULL because it is not used. The StatusCode SemanticsChanged bit shall
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.3.4.6 NDimensionArrayItemType

Float, Double, ComplexNumberType and DoubleComplexNumberType. AxisDefinition Property holds the information about the EngineeringUnits and Range for all axis. The StatusCode SemanticsChanged bit shall be set if any of the InstrumentRange
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.6.7 AxisInformation

this structure: The step between points is constant and can be predicted using the range information and the number of points. In this case, axisSteps can be set to NULL ... engineeringUnits EUInformation Holds the information about the engineering units for a given axis. eURange Range Limits of the range of the axis title LocalizedText User readable axis title, useful when
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.2.2 Generating intervals

provides information on the intervals for each Start and End time combination. The range is defined to be |End - Start|. All Aggregates return a timestamp of the start ... data at the specified time or not. Start < End Int = 0 or Int ≥ Range One interval, starting at Start and ending at End . Includes Start , excludes End , i.e., [Start
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.14 Range

Range The Range Aggregate defined in Table 62 finds the difference between the maximum and minimum Good raw values in the interval. If only one Good value exists ... interval, the range is zero. Note that the range is always zero or positive. If non-Good values are ignored when finding the minimum or maximum values
OPC-10000-18 – OPC Unified Architecture - Part 18: Role-Based Security

5.2.1 UserManagementType definition

defined in OPC 10000-5 HasProperty Variable Users UserManagementDataType[] PropertyType Mandatory HasProperty Variable PasswordLength Range PropertyType Mandatory HasProperty Variable PasswordOptions PasswordOptionsMask PropertyType Mandatory HasProperty Variable PasswordRestrictions LocalizedText PropertyType Optional HasComponent ... minimum and 0 for high indicates no limit for maximum password length. The Range DataType is defined in OPC 10000-8 . The Property PasswordOptions defines the password features and requirements
OPC-10000-200 – OPC Unified Architecture - Part 200: Industrial Automation

7.5.2 CapacityRangeType

represent a scale of calibration values. The value of the Variable defines the range (lowest and highest value), and the resolution the size of each step. The VariableType is formally ... CapacityRangeType Definition Attribute Value BrowseName CapacityRangeType IsAbstract False ValueRank -1 (-1 = Scalar) DataType 0:Range Description Represent a scale of calibration values. The value defines the range (lowest and highest