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

73 result(s) for PubSubConnection

OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

5.4.1.2 Message sending

provided from the previous step together with the PublisherId (see 6.2.7.1 ) defined on the PubSubConnection . The structure of this message is protocol specific. If the SecurityMode (see 6.2.5.2 ) requires message
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

5.4.6.4 QoS configuration

shown in Figure 18 and Figure 19 the PriorityLabel from a WriterGroup , DataSetReader or PubSubConnection TransportSettings will be translated into actual values to be used on the wire. Together with
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.1 Overview

grouped here since they are the same for all DataSetMessages in a single NetworkMessage . PubSubConnection parameters represent settings needed for the transport protocol. One connection can have a number ... mapping specific parameters overview Transport protocol mapping specific parameters may be defined for the PubSubConnection , the WriterGroup or the DataSetWriter . Message mapping specific parameters are defined for the NetworkMessages
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.5.7 PubSubGroup structure

name shall be unique across all writer groups and reader groups of a PubSubConnection . It is recommended to use a human readable name. Enabled Boolean The enabled state
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.7.1 PublisherId

vendor specific. The PublisherId parameter is only relevant for the Publisher functionality inside a PubSubConnection . The filter setting on the Subscriber side is contained in the DataSetReader parameters. Valid DataTypes
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.7.5.1 PubSubConnectionDataType

structure Name Type Description Allow Subtypes PubSubConnectionDataType Structure Name String The name of the PubSubConnection . The name shall be unique across a PubSubConfiguration . It is recommended to use a human ... readable name. Enabled Boolean The enabled state of the PubSubConnection . PublisherId BaseDataType Defined in 6.2.7.1 . TransportProfileUri String Defined in 6.2.7.2 . Address NetworkAddressDataType Defined in 6.2.7.3 . The NetworkAddressDataType is defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.2.7.5.2 ConnectionTransportDataType

ConnectionTransportDataType This Structure DataType is an abstract base type for transport mapping specific PubSubConnection parameters. The abstract DataType does not define fields. The ConnectionTransportDataType Structure representation in the AddressSpace
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.2.5 QosCategory

QosCategory Selects the general category of QoS the PubSubConnection requires. Further details are defined in 6.4.1.1.1 . The parameter shall be null or empty if no QoS related parameters
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.2.6 DatagramQos

DatagramQos The DatagramQos parameter contains QoS related parameters for the PubSubConnection as array of QosDataType Structures . The abstract DataType is defined in 6.4.1.1.2 . The concrete subtypes are used to represent
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.2.7 DatagramConnectionTransport2DataType structure

Structure DataType is used to represent the datagram specific transport mapping parameters for a PubSubConnection . It is a subtype of the DatagramConnectionTransportDataType defined in 6.4.1.2.2 . The DatagramConnectionTransport2DataType is formally defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.3.4 Address

this level. If the parameter is set, it overwrites the Address on the PubSubConnection
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.6.1 Address

this level. If the parameter is set, it overwrites the Address on the PubSubConnection
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.1.7.1 ClientCipherSuite

Client Server Security Policy. The client cipher suite is configured at the PubSubConnection level. This parameter denotes the single cipher suite that the DTLS client will offer in the DTLS ... variable is not configured (e.g. set to the null string) then for a given PubSubConnection the device is meant to act as a server
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.2.2 AuthenticationProfileUri

suitable authentication mechanism in the ProfileUri array, the transport sets the State of the PubSubConnection is set to Error
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.2.3 BrokerConnectionTransportDataType structure

Structure DataType is used to represent the broker-specific transport mapping parameters for the PubSubConnection . It is a subtype of the ConnectionTransportDataType defined in 6.2.7.5.2 . The BrokerConnectionTransportDataType is formally defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.3.2 ResourceUri

this String is not null or empty, it overrides the ResourceUri of the PubSubConnection authentication settings
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.3.3 AuthenticationProfileUri

this String is not null or empty, it overrides the AuthenticationProfileUri of the PubSubConnection transport settings defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.6.2 ResourceUri

this String is not null or empty, it overrides the ResourceUri of the PubSubConnection authentication settings
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.6.3 AuthenticationProfileUri

this String is not null or empty, it overrides the AuthenticationProfileUri of the PubSubConnection transport settings defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.2 MessageTypes

endpoints of the Publisher. Status Discovery message with the current operational status of the PubSubConnection . PubSubConnection Discovery message with the PubSubConnection configured in the Publisher including WriterGroups and DataSetWriters ... Action request and response for a Requestor. ActionResponder Discovery message with the Responder related PubSubConnection information for Actions configured in the Publisher including WriterGroups and DataSetWriters for Actions. Each message
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.6.2 Discovery scope for Datagram transport protocols

following discovery messages. OPC UA Application information announcement Publisher endpoint announcement PubSubConnection configuration announcement These messages use the standard discovery address if defined for the transport protocol mapping like ... IANA registered IPv4 multicast address for UDP. Other announcements below PubSubConnection level can use different PublisherIds for different transport protocol mappings. Such PubSubConnection specific PublisherIds could be two Byte PublisherIds
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.6.7 Status

responsible for detecting changes to the status. Status PubSubState The current state of the PubSubConnection . This value is mandatory. NextReportTime UtcTime When the Publisher expects to send the next update
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.6.8 PubSubConnection

PubSubConnection The encoding of the PubSubConnection configuration announcement message structure is specified in Table 174 . It contains an array of PubSubConnections configured in the OPC UA Application . Table 174 - PubSubConnection ... empty. The WriterGroup list shall be contained, if the IncludeWriterGroups is true in the PubSubConnection information probe message. The DataSetWriter lists in the WriterGroups shall be contained, if the IncludeDataSetWriters
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.6.12.4 Publisher information probe message

this InformationType are defined in Table 182 The information is provided with the PubSubConnection configuration announcement message defined in 7.2.4.6.7 . The additional field for DataSetWriter related InformationType in a Publisher ... configuration message. IncludeDataSetWriters Boolean Flag indicating if the DataSetWriter should be contained in the PubSubConnection configuration announcement message. The additional fields for PubSubConnection configuration in a Publisher information probe message
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.3 NetworkMessage containing DataSetMessages

depends on the setting in the JsonNetworkMessageContentMask . The source is the PublisherId on a PubSubConnection (see 6.2.7.1 ). If the PublisherId is a UInteger , the UInteger value is converted
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.4.1 Message content

depends on the setting in the JsonDataSetMessageContentMask . The source is the PublisherId on a PubSubConnection (see 6.2.7.1 ). If the PublisherId is a UInteger , the UInteger value is converted
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.5.5 Status

responsible for detecting changes to the status. Status PubSubState The current state of the PubSubConnection . This value is mandatory. NextReportTime UtcTime When the Publisher is expected to send the next
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.5.5.6 PubSubConnection

PubSubConnection A NetworkMessage with MessageType PubSubConnection is a JSON object with the fields defined in Table 192 . All fields are encoded using CompactEncoding OPC UA JSON Data Encoding defined ... Table 192 - JSON PubSubConnection definition Name Type Description MessageId String A globally unique identifier for the message. This value is mandatory. MessageType String This value shall be "ua-connection
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.2.1 General

simple UDP based protocol that is used to transport UADP NetworkMessages . A PubSubConnection for UDP shall have a unique Address across all PubSubConnections of an OPC UA Application
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.2.2 UDP multicast and broadcast

transport protocol URL for UDP multicast and broadcast communication is configured on a PubSubConnection for Publisher and Subscriber . The Address parameter for a PubSubConnection is defined ... send to and receive from the multicast IP address shall be configured on one PubSubConnection . The Address parameter for WriterGroup datagram TransportSettings shall be null. If an Address is configured
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.2.3 UDP unicast

unicast For UDP unicast, the address information for the Subscriber is configured on the PubSubConnection and the address information for the Publisher is configured on the WriterGroup . The receive port ... unicast communication is configured on a PubSubConnection . The Address parameter for a PubSubConnection is defined in 6.2.7.3 . All NetworkMessages for one port are received through one PubSubConnection. The filtering
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.2.4.1 General

UADP unicast. The receive address for DTLS unicast communication is configured on a PubSubConnection . The Address parameter for a PubSubConnection is defined in 6.2.7.3 . The syntax of the URL used ... PubSubConnection Address parameter has the following form: opc.dtls://localhost:<port> The send address is configured on the datagram TransportSettings of a WriterGroup . The Address parameter for a datagram
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.2.4.3 Connection Properties

DTLS standard properties Key DataTypes Description 0:DtlsConnectionSettings DtlsPubSubConnectionDataType The DTLS configuration for the PubSubConnection or WriterGroup . The DtlsPubSubConnectionDataType is defined in 6.4.1.7.6 . 0:DtlsClientCipherSuite String Cipher suite ... PubSubConnection or WriterGroup . The ClientCipherSuite is defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.3 Authentication

existing connection. Authentication shall be performed according to the configured AuthenticationProfileUri of the PubSubConnection , DataSetWriterGroup , DataSetWriter or DataSetReader entities. If no authentication information is provided in the form of ResourceUri
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.4 Connection properties

connection. The connection properties apply to any connection created as part of the PubSubConnection , or subordinate configuration entities, such as the WriterGroup and the DataSetWriter . The properties are defined through
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.3 data Topic level

WriterGroup TransportSettings . The messages are instances of the DataSetMessage MessageType (see 7.2.2 ). The corresponding PubSubConnection Messag e is sent to the Topic with the same <Prefix>, <Encoding ... PublisherId>. The PubSubConnection specifies the WriterGroups and DataSetWriters for a Publisher
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.4 metadata Topic level

DataSetWriter TransportSettings . The messages are instances of the DataSetMetaData MessageType (see 7.2.2 ). The corresponding PubSubConnection Messag e is sent to the Topic with the same <Prefix>, <Encoding ... PublisherId>. The PubSubConnection specifies the WriterGroups and DataSetWriters for a Publisher
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.7 status Topic level

MQTT client connection has multiple PubSubConnections (like for different encodings), not more than one PubSubConnection can register a Status message as MQTT Will message. All other PubSubConnections shall use cyclic
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.8 connection Topic level

application sending the messages. This value shall be the same as the PublisherId in PubSubConnection provided in the message. The PublisherId in the PubSubConnection uniquely identifies the Publisher within ... scope defined by the <Prefix>. The TransportProfileUri in the PubSubConnection specifies the <Encoding> used for all messages for the combination of <Encoding>/<PublisherId
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.9 action-request Topic level

with the same <Prefix>, <Encoding> and <Responder>. The PubSubConnection specifies the WriterGroups and DataSetWriters for a Responder
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.10 action-response Topic level

with the same <Prefix>, <Encoding> and <Responder>. The PubSubConnection specifies the WriterGroups and DataSetWriters for a Responder
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.11 action-responder Topic level

Responder of the Actions . This value shall be the same as the PublisherId in PubSubConnection provided in the message. The PublisherId in the PubSubConnection uniquely identifies the Publisher within ... possible since long Topic names degrade performance. The messages are instances of the PubSubConnection MessageType
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.7.12 action-metadata Topic level

DataSetWriter TransportSettings . The messages are instances of the ActionMetaData MessageType (see 7.2.2 ). The corresponding PubSubConnection Messag e is sent to the Topic with the same <Prefix>, <Encoding ... PublisherId>. The PubSubConnection specifies the WriterGroups and DataSetWriters for a Publisher
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.3.4.8 Message header

MQTT message header shall include additional fields defined on the PubSubConnection , WriterGroup or DataSetWriter through the KeyValuePair array in the WriterGroupProperties and DataSetWriterProperties . The NamespaceIndex of the QualifiedName
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.3.2 PublishSubscribeType

state machine for the status and the relation to other PubSub Objects like PubSubConnection , PubSubGroup , DataSetWriter and DataSetReader are defined in 6.2.1 . The Diagnostics Object provides the current diagnostic information
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.3.4 AddConnection Method (Deprecated)

AddConnection Method (Deprecated) This deprecated Method is used to add a new PubSubConnection Object to the PublishSubscribe Object . The Client should be authorized to modify the configuration for the PubSub ... AddConnection ( [in] PubSubConnectionDataType Configuration, [out] NodeId ConnectionId ); Argument Description Configuration Configuration parameters for the PubSubConnection . The parameters and the PubSubConnectionDataType are defined in 6.2.7 . ConnectionId The NodeId
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.3.7.2 PubSubConfigurationRefMask

referenced ReaderGroup . ReferenceConnection 8 The element operation is applied to the referenced PubSubConnection . ReferencePubDataset 9 The element operation is applied to the referenced PublishedDataSet . ReferenceSubDataset 10 The element operation
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.3.7.4 PubSubConfigurationValueDataType

PubSubConneciton , WriterGroup or DataSetWriter . The value is null otherwise. If ConfigurationElement references a PubSubConnection , Identifier will contain the value of the PublisherId . If ConfigurationElement references a WriterGroup , Identifier will contain
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.5.2 PubSubConnectionType

PubSubConnectionType This ObjectType is a concrete type for Objects representing PubSubConnections . A PubSubConnection is a combination of protocol selection, protocol settings and addressing information. The PubSubConnectionType is formally defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.5.3 AddWriterGroup Method (Deprecated)

Method is used to add a new WriterGroup Object to an instance of the PubSubConnection . The Client should be authorized to modify the configuration for the PubSub functionality when invoking
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.5.4 AddReaderGroup Method (Deprecated)

Method is used to add a new ReaderGroup Object to an instance of the PubSubConnection . The Client should be authorized to modify the configuration for the PubSub functionality when invoking
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.6.2 PubSubGroupType

state machine for the status and the relation to other PubSub Objects like PubSubConnection , DataSetWriter and DataSetReader are defined
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.7.2 DataSetWriterType

state machine for the status and the relation to other PubSub Objects like PubSubConnection and PubSubGroup is defined in 6.2.1 . The Diagnostics Object provides the current diagnostic information
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.8.2 DataSetReaderType

state machine for the status and the relation to other PubSub Objects like PubSubConnection and PubSubGroup are defined in 6.2.1 . The Diagnostics Object provides the current diagnostic information
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.13.1 PubSubStatusEventType

associated with the source of the status Event . The GroupId is Null if a PubSubConnection is the source of the Event. The State Variable is the current state
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.3.1.1 DatagramConnectionTransportType

DatagramConnectionTransportType This ObjectType represents datagram transport protocol mapping specific parameters for a PubSubConnection . The DatagramConnectionTransportType is formally defined in Table 342 . Table 342 - DatagramConnectionTransportType definition Attribute Value BrowseName DatagramConnectionTransportType IsAbstract
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.3.2.1 BrokerConnectionTransportType

BrokerConnectionTransportType This ObjectType represents broker transport protocol mapping specific parameters for a PubSubConnection . The BrokerConnectionTransportType is formally defined in Table 345 . Table 345 - BrokerConnectionTransportType definition Attribute Value BrowseName BrokerConnectionTransportType IsAbstract
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

A.2.1.4 Header layout for NetworkMessages

ExtendedFlags2 enabled = 0 PublisherId UInt16 or UInt64 Configured value for the PubSubConnection. The datatype shall be UInt16 or UInt64. GroupHeader GroupFlags Byte Bit 0: Writer GroupId enabled ... enabled = 1 Bit 4: NetworkMessageNumber enabled = 1 Bit 5: SequenceNumber enabled = 1 When a PubSubConnection is created by using the Method AddConnection() the element PublisherId contained in the argument PubSubConnectionDataType
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

A.2.2.4 Header layout for NetworkMessages

PicoSeconds enabled = 0 Bit 7: ExtendedFlags2 enabled = 0 PublisherId UInt64 Configured value for the PubSubConnection. The datatype shall be UInt64. PayloadHeader Byte[*] Defined by Table 160 . Table A.8 defines ... following options: Bit 0: PublisherId enabled = 1 Bit 6: PayloadHeader enabled = 1 When a PubSubConnection is created by using the Method AddConnection() the element PublisherId contained in the argument PubSubConnectionDataType
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

B.2.4 Authentication

B.2.4 Authentication Authentication is performed according to the configured AuthenticationProfileUri of the PubSubConnection , DataSetWriterGroup , DataSetWriter or DataSetReader entities. If no authentication information is provided in the form of ResourceUri
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

B.3.3 Authentication

B.3.3 Authentication Authentication is performed according to the configured AuthenticationProfileUri of the PubSubConnection , DataSetWriterGroup , DataSetWriter or DataSetReader entities. If no authentication information is provided in the form of ResourceUri
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

B.3.4 Connection properties

connection properties apply to any connection, session or link created as part of the PubSubConnection , or subordinate configuration entities, such as WriterGroup and DataSetWriter . The properties are defined through
OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names

D.1.3 PubSub AliasName Notification Configuration

specific GDS or aggregating Server . The Enabled that is associated with the PubSubConnection for the published messages . This flag can be used to enable the Servers AliasName PubSub Notifications feature
OPC-10000-22 – OPC Unified Architecture - Part 22: Base Network Model

5.5.2.2 PriorityMappingTableType definition

example for a simplified PubSub connection is shown in Annex A.2 . Within the PubSubConnection , each WriterGroup can contain a QosCategory and DatagramQos structure with a PriorityLabel . For the subscriber side
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.2.4.3.9.2 PubSub

DataSetReader and/or DataSetWriter which are persisted, including all parent Objects , i.e., WriterGroup , ReaderGroup , PubSubConnection and PublishSubscribe (see NotPersisted in OPC 10000-14 ). If the IsPersistent Property is set to FALSE
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.2.4.3.10.2 PubSub

each element in ConnectionEndpointConfigurations . It shall also ensure that the parent Objects ( WriterGroup , ReaderGroup , PubSubConnection , and PublishSubscribe ) are enabled. If enabling any communication model-specific Objects fails, the EstablishConnections implementation
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.2.5.2 CloseConnections behaviour

References if no further References from other ConnectionEndpoints exist. Their parent Objects ( WriterGroup , ReaderGroup , PubSubConnection , and PublishSubscribe ) shall be left in their current state. The behaviour of the Client Server
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.7.5.3.1 ActionEstablishConnectionsEnabled / ActionEstablishConnectionsDisabled / ActionEstablishConnections

DataSetReader and DataSetWriter configuration elements and to TRUE for all other elements ( WriterGroup , ReaderGroup , PubSubConnection , and PublishSubscribe) . A disabled ClientServer communication model may be defined in a future version ... DataSetReader and DataSetWriter configuration elements and to TRUE for all other elements ( WriterGroup , ReaderGroup , PubSubConnection , and PublishSubscribe) . Calling ProcessConnectionConfigurationSets with Action set to ActionEstablishConnections shall establish all Connections contained
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.16.3.2 PubSubCommunicationModelConfigurationType definition

certain elements in PubSubConfiguration , the entity generating the ConnectionConfigurationSet may set their names (i.e., PubSubConnection , ReaderGroup , WriterGroup , DataSetReader , DataSetWriter ) to a specific value or to null. If set to null ... Annex E.5 for examples. For PubSubConnections, specific handling applies: OPC 10000-14 requires a PubSubConnection to have a unique Address across all PubSubConnections . This implies that there is exactly
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

D.3.6.2 Using preconfigured DataSets

referencing the preconfigured PDS_AI4), are in this example created during EstablishConnections . For simplicity, PubSubConnection and WriterGroup are not shown. Figure D.22 - Fixed layout used by ConnectionEndpoint
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

E.6.2 ConnectionConfigurationSet and WriterGroup

parameters in Flow2. Figure E.26 illustrates the relation between the PubSubCommunicationFlowConfiguration and the PubSubConnection and WriterGroup within the PubSubConfiguration. If any changes are made to the PubSubCommunicationFlowConfiguration , the related PubSubConnection ... type of Address (unicast or multicast), the Address will be in the PubSubConnection or in the WriterGroup's TransportSettings ; see OPC 10000-14 for details. As an example
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

E.6.3 ConnectionConfigurationSet and ReaderGroup

E.27 - ConnectionConfigurationSet and ReaderGroup Figure E.27 illustrates the relation between the SubscriberConfiguration and the PubSubConnection and ReaderGroup within the PubSubConfiguration. It is recommended to update PublisherId after issuing the ReserveCommunicationIdsCmd ... details. For a Subscriber, the Address will be in the PubSubConnection . See 6.13.3.3 on how to set the Address . TransportProfileUri is used to set up the information in the PubSubConnection
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

F.1.6 CommunicationFlowConfigurationConfDataType

CommunicationFlowConfigurationConfDataType properties Key DataType Description 4:PubSubConnectionAddress NetworkAddressDataType Allows the configuration of the PubSubConnection Address for Publishers of a unidirectional connection without heartbeat or other cases where the Address configuration ... flow does not include the information needed to set the Address in the PubSubConnection . One example is a unidirectional connection without heartbeat using UDP unicast. The CommunicationFlowConfigurationConfDataType representation