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

38 result(s) for DataValue

OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.11.2.2 Parameters

Response responseHeader ResponseHeader Common response parameters (see 7.33 for ResponseHeader definition). results [] DataValue List of Attribute values (see 7.11 for DataValue definition). The size and order of this list matches
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.11.2.4 StatusCodes

StatusCodes Table 49 defines values for the operation level statusCode contained in the DataValue structure of each results element. Common StatusCodes are defined in Table 179 . Table 49 - Read Operation
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.11.4.2 Parameters

indexRange is provided and writing of indexRange is not possible for the Node . value DataValue The Node 's Attribute value (see 7.11 for DataValue definition). If the indexRange parameter
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.13.1.5 Queue parameters

discard policies when the MonitoredItem is created. If a Notification is discarded for a DataValue and the size of the queue is larger than one, then the Overflow bit (flag ... InfoBits portion of the DataValue statusCode is set. If discardOldest is TRUE, the oldest value gets deleted from the queue and the next value in the queue gets the flag
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.13.2.2 Parameters

When monitoring Events , this applies only to Event fields that are of type DataValue . itemsToCreate [] MonitoredItem CreateRequest A list of MonitoredItems to be created and assigned to the specified Subscription
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.13.3.2 Parameters

When monitoring Events , this applies only to Event fields that are of type DataValue . itemsToModify [] MonitoredItemModifyRequest The list of MonitoredItems to modify. This structure is defined in-line with
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.21 MonitoringParameters

queue overflow, the Overflow bit (flag) in the InfoBits portion of the DataValue statusCode is set in the new value. The following values have special meaning for event monitored items
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.25.2 DataChangeNotification parameter

Client -supplied handle for the MonitoredItem . The IntegerId type is defined in 7.19 Value DataValue The StatusCode , value and timestamp(s) of the monitored Attribute depending on the sampling ... size of the queue is larger than one, the Overflow bit in the DataValue InfoBits of the statusCode is set. DataValue is a common type defined in 7.11 . diagnosticInfos [] DiagnosticInfo
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.38.1 General

NotUsed 00 The info bits are not used and shall be set to zero. DataValue 01 The StatusCode and its info bits are associated with a data value returned from ... describes the structure of the InfoBits when the Info Type is set to DataValue (01). Table 177 - DataValue InfoBits Info Type Bit Range Description LimitBits 8:9 The limit bits
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

12.15 SubscriptionDiagnosticsDataType

number of disabled monitored items of the subscription. monitoringQueueOverflowCount UInt32 The number of DataValue Notifications that have been discarded for all MonitoredItem s when the queue size of a MonitoredItem
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.1.4 DateTime

supported precision. All DevelopmentPlatforms shall support a precision of at least 1 ms. The DataValue built-in type adds additional fields for Picoseconds. If a DevelopmentPlatform cannot support the full
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.1.9 Variant

returned in instances of DataValues . Therefore, the DataType of an Attribute cannot be a DataValue . Variants can contain DataValue when used in other contexts such as Method Arguments or PubSub ... Messages . The Variant in a DataValue cannot, directly or indirectly, contain another DataValue . ExtensionObjects and Variants allow unlimited nesting which could result in stack overflow errors even if the message
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.2.2.17 DataValue

DataValue A DataValue is always preceded by a mask that indicates which fields are present in the stream. The fields of a DataValue are described in Table 27 . Table
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.3.1.18 DataValue

DataValue A DataValue value is encoded as a xs:complexType with the following XML schema: <xs:complexType name="DataValue"> <xs:sequence> <xs:element
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.4.2.18 DataValue

DataValue DataValue values shall be encoded as a JSON object with the fields shown in Table 42 . The DataValue adds additional fields to a Variant (see 5.4.2.17 ). Table 42 - JSON ... Object Definition for a DataValue Name Data Type Description UaType Byte See the UaType field in the Variant . Value * See the Value field in the Variant . Dimensions UInt32
OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions

5.3 ConditionVariable

same time that would be returned from the Read Service inside the DataValue structure for the ConditionVariable Value Attribute
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

3.1.8 RawData

HistoricalDataNode Note 1 to entry: The data can be all data collected for the DataValue or it can be some subset of the data depending on the historian
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.5.2.2 Read Event functionality

NoData . When reading Events, TimestampsToReturn only applies to Event fields that are of type DataValue . If the requested TimestampsToReturn is not supported for an Event field then the returned value
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.5.2.4 Read modified functionality

NoData . When reading Events, TimestampsToReturn only applies to Event fields that are of type DataValue . If the requested TimestampsToReturn is not supported for an Event field then the returned value
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.9.1 Overview

HistoricalDataNodes The Variable 's value is represented by a composite value defined by the DataValue data type. UpdateDataDetails Replace data This function replaces existing values into the history database ... HistoricalDataNodes . The Variable 's value is represented by a composite value defined by the DataValue data type. UpdateDataDetails Update data This function inserts or replaces values into the history database
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

5.3.2 DataSetMessage field

value like status and timestamp. A DataSet field can be represented as a DataValue , as a Variant or as a RawData in the DataSetMessage field. The representation depends ... defined in 6.2.4.2 and the message mappings defined in 7.2 . The representation as a DataValue is used if value, status and timestamp are included in the DataSetMessage . The representation
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.3.7.1 PublishedData

value that is included in the DataSet if the StatusCode of the DataValue is Bad. In this case the StatusCode is set to Uncertain_SubstituteValue. This Value shall match ... DataType that matches the ConfigurationVersion . If the SubstituteValue is Null, the StatusCode of the DataValue is processed. The handling of the SubstituteValue is defined in 6.2.11 . MetaDataProperties QualifiedName [ ] This parameter
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.4.2 DataSetFieldContentMask

Values Value Bit No. Description DataSet fields can be represented as RawData, Variant or DataValue as described in 5.3.2 . If none of the bits are set, the fields are represented ... bits 0 to 4 is set, the fields are represented as DataValue . StatusCode 0 The DataValue structure field StatusCode is included in the DataSetMessage s. If this
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.9.5 DataSetFieldContentMask

DataSetFieldContentMask The parameter DataSetFieldContentMask with DataType DataSetFieldContentMask indicates the fields of a DataValue included in the DataSetMessages . The parameter shall be ignored for heartbeat messages. The DataSetFieldContentMask DataType is defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.5.4 DataSetMessage header

DataType if the status of the field is Bad. The Variant can contain a DataValue with the value and the statusCode if the status of the field is Uncertain ... RawData Field Encoding The RawData field encoding is defined in 7.2.4.5.11 . 10 DataValue Field Encoding The DataSet fields are encoded as DataValue . This option is set if the DataSet
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.5.11 RawData field encoding

Structure fields shall not have the builtInType NodeId , ExpandedNodeId , QualifiedName , LocalizedText , XmlElement, DiagnosticInfo or DataValue . RawField encoding shall only be applied to Data Key Frame DataSetMessages . Structure DataTypes shall
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.4.1 Message content

event", only Variant or RawData encoding shall be allowed. If bits for DataValue encoding are set, the Variant encoding shall be used. This value is always present. All fields ... DataSetMessage fields are encoded as Variant . Otherwise the fields are encoded as DataValue . If the MessageType is "ua-event", the DataSetFieldContentMask shall be 0x0 or 0x20
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.4.3 VerboseEncoding and abstract type handling

other ValueRank is mentioned in the description. Table 187 provides examples of DataValue VerboseEncoding field encoding for RawData=FALSE. For RawData=TRUE the UaType and UaTypeId fields are skipped ... reduce the string length for readability of the examples. Table 187 - DataSet field DataValue VerboseEncoding examples Description DataType RawData = FALSE Simple scalar Int32 Int32 { "Value": 1234, "SourceTimestamp
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.6.2 ActionRequest

DataSetFieldContentMask. Only Variant or RawData encoding shall be allowed. If bits for DataValue encoding are set, the Variant encoding shall be used. The encoding rules defined in 7.2.5.4 for DataSetMessages ... also apply to the ActionRequest message. The DataValue encoding shall not be used in ActionRequest message. The RawData flag shall be FALSE for ActionRequest messages
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.6.3 ActionResponse

DataSetFieldContentMask. Only Variant or RawData encoding shall be allowed. If bits for DataValue encoding are set, the Variant encoding shall be used. The value shall be present. The encoding rules ... defined in 7.2.5.4 for DataSetMessages also apply to the ActionResponse message. The DataValue encoding shall not be used in ActionResponse message. The RawData flag shall be FALSE for ActionResponse messages
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

E.4.7 PubSub DataSets

status to be sent in the case of a bad status) or a DataValue (value, status, and timestamps) encoding. Figure E.18 - Fixed DataSetMessage Other PubSub Profiles can include a dynamic
OPC-30130 – OPC UA for Control & Communication System Profile(for Machine)

6.4.7.2 Preset label CSPP element

field (bit 30 and bit 31) of the statusCode element of a value as DataValue DataType *1 from the Service return values When the value acquired from the machine ... Property . 4. P_ChangeDate "sourceTimestamp" member of a value as DataValue DataType *1 from the Service return values Maps the item value acquired from the machine
OPC-30142 – OPC UA for PROFINET Remote IO

6.8 Process Value Qualifier and StatusCode Relationship

Value of Process Values , the Server shall set the StatusCode member of the DataValue structures returned by the Read Service and the Publish Service consistent with the Process Value Qualifier
OPC-30142 – OPC UA for PROFINET Remote IO

9.2.1 RioPaDigitalProcessValueVariableType

TypeDefinition Other Subtype of the BaseDataVariableType defined in OPC 10000-5 . 0:HasComponent Variable DataValue 0:Boolean 0:BaseDataVariableType O, RO 0:HasComponent Variable QualifierValue 0:Byte RioPaProcessValueQualifierVariableType ... Conformance Units PNRIO Channel Objects The DataValue Variable contains the Process Value as transmitted in the telegram signal. The Value of the QualifierValue Variable contains the status information as transmitted
OPC-30142 – OPC UA for PROFINET Remote IO

9.2.2 RioFaDigitalProcessValueVariableType

TypeDefinition Other Subtype of the BaseDataVariableType defined in OPC 10000-5 . 0:HasComponent Variable DataValue 0:Boolean 0:BaseDataVariableType O, RO 0:HasComponent Variable QualifierValue 0:Boolean RioFaProcessValueQualifierVariableType ... Conformance Units PNRIO Channel Objects The DataValue Variable contains the Process Value bit as transmitted in the telegram signal. The Value of the QualifierValue Variable contains the qualifier
OPC-30142 – OPC UA for PROFINET Remote IO

9.2.3 RioPaAnalogProcessValueVariableType

TypeDefinition Other Subtype of the BaseDataVariableType defined in OPC 10000-5 . 0:HasComponent Variable DataValue 0:Number 0:BaseAnalogType O, RO 0:HasComponent Variable QualifierValue 0:Byte RioPaProcessValueQualifierVariableType ... Conformance Units PNRIO Channel Objects The DataValue Variable contains the analog Process Value as transmitted in the telegram signal. The optional EngineeringUnits Property of the DataValue Variable shall be provided
OPC-30142 – OPC UA for PROFINET Remote IO

9.2.4 RioFaAnalogProcessValueVariableType

TypeDefinition Other Subtype of the BaseDataVariableType defined in OPC 10000-5 . 0:HasComponent Variable DataValue 0:Number 0:BaseAnalogType O, RO 0:HasComponent Variable QualifierValue 0:Boolean RioFaProcessValueQualifierVariableType ... Conformance Units PNRIO Channel Objects The DataValue Variable contains the analog Process Value as transmitted in the telegram signal. The optional EngineeringUnits Property of the DataValue Variable shall be provided
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.5 IO Data Qualifier and StatusCode Relationship

data is provided (see GsdGenIoChannelQualityType ), the Server shall set the StatusCode member of the DataValue structures returned by the Read Service and the Publish Service consistent with the content