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

18 result(s) for Float

OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

12.2.9.4 Float

Float The representation in the AddressSpace of the Float DataType is defined in Table 176 . Table 176 - Float definition Attributes Value BrowseName Float IsAbstract FALSE References NodeClass BrowseName DataType TypeDefinition
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.6.2 Variable NodeClass

dimension array of floats with a maximum array length of 10, set DataType = Float , ValueRank = 1, ArrayDimensions = [10]. If the array length has no fixed upper limit, then set ArrayDimensions
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.7.3 FilterOperator

value are restricted to the DataTypes Byte , Int16 , Int32 , Int64 , SByte , UInt16 , UInt32 , UInt64 , Float , Double and DateTime . When testing for equality, a Server shall treat null and empty arrays ... Conversion rules Target Type (To) Source Type (From) Boolean Byte ByteString DateTime Double ExpandedNodeId Float Guid Int16 Int32 Int64 NodeId SByte StatusCode String LocalizedText QualifiedName UInt16 UInt32 UInt64 XmlElement Boolean
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.2.2.3 Floating-Point

Floating-Point Name Width (bits) Fraction Exponent Sign Float 32 0-22 23-30 31 Double 64 0-51 52-62 63 In addition, the order of bytes ... endian). Figure 3 illustrates how the value -6.5 (Hex: C0D00000) is encoded as a Float . The floating-point type supports positive and negative infinity and not-a-number
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.4.2.4 Floating-point

Floating-point Normal Float and Double values shall be encoded as a JSON number. Special floating-point numbers such as positive infinity (INF), negative infinity (-INF) and not-a-number
OPC-10000-15 – OPC Unified Architecture - Part 15: Safety

7.2.3.6 Calculation of a CRC signature

longer than one octet (e.g. if it is of DataType UInt16 , Int16 or Float ), it shall be decoded and encoded using little endian order in which the least significant octet
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

5.2.2 UAFX Base

Datatype Support Is capable of supporting Boolean , SByte , Byte , Int16 , UInt16 , Int32 , UInt32 , and Float datatypes. Server UAFX Preconfigured PublishedDataSet If preconfigured PublishedDataSets exist, the Server exposes the PublishSubscribe Object
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

7.4.3.1 Variable Present_Value

Variable Present_Value This OPC UA Variable , of DataType Float , indicates the current value, in engineering units, of the input being measured. The Present_Value Variable shall be writable when
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

7.4.3.4 Variable COV_Increment

Variable COV_Increment This OPC UA Property , of type Float , represents the BACnet property COV_Increment. It shall specify the minimum change in the BACnet property Present_Value that will
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

7.4.3.5 Variable Resolution

Variable Resolution This OPC UA Property , of DataType Float , represents the BACnet property Resolution. It indicates the smallest recognizable change in Present_Value in engineering units
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

7.6.3.3 Variable Relinquish_Default

Variable Relinquish_Default This OPC UA Property , of DataType Float , represents the BACnet property Relinquish_Default. It is the default value to be used for the Present_Value when
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.12.2.2 Variable LowDiffLimit

Variable LowDiffLimit This OPC UA Property , of DataType Float , is the LowDiffLimit parameter for the object's event algorithm. Subtracted from the setpoint reference value, the LowDiffLimit variable value represents
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.12.2.3 Variable HighDiffLimit

Variable HighDiffLimit This OPC UA Property , of DataType Float , is the HighDiffLimit parameter for the object's event algorithm. Added to the setpoint reference value, the HighDiffLimit variable value represents
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.12.2.4 Variable Deadband

Variable Deadband This OPC UA Property , of DataType Float , is the Deadband parameter for the object's event algorithm. The Deadband variable value represents the deadband that is applied
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.13.2.1 Variable HighLimit

Variable HighLimit This OPC UA Property, of DataType Float , is the HighLimit parameter for the object's event algorithm. The HighLimit value represents the upper limit of the range considered
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.13.2.2 Variable LowLimit

Variable LowLimit This OPC UA Property, of DataType Float , is the LowLimit parameter for the object's event algorithm. The LowLimit value represents the lower limit of the range considered
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.13.2.3 Variable Deadband

Variable Deadband This OPC UA Property, of DataType Float , is the Deadband parameter for the object's event algorithm. The Deadband value represents the deadband that is applied
OPC-30030 – OPC UA for BACnet - BACnet: OPC UA Information Model

8.16.2.1 Variable Increment

Variable Increment This OPC UA Property, of DataType Float , is the Increment parameter for the object's event algorithm. The Increment value represents the positive increment by which a monitored ... value of Float type must change for a new transition