JSON Message mapping – OPC Unified Architecture

9.2.2 JSON Message mapping

9.2.2.1 JsonWriterGroupMessageType

This ObjectType represents JSON message mapping specific parameters for a WriterGroup. The JsonWriterGroupMessageType is formally defined in Table 339.

Table 339 – JsonWriterGroupMessageType definition

Attribute	Value
BrowseName	JsonWriterGroupMessageType
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of WriterGroupMessageType defined in 9.1.6.8.
HasProperty	Variable	NetworkMessage‌ContentMask	JsonNetworkMessageContentMask	PropertyType	Mandatory
Conformance Units
PubSub Model JSON

The NetworkMessageContentMask is defined in 6.3.2.4.1.

9.2.2.2 JsonDataSetWriterMessageType

This ObjectType represents UADP message mapping specific parameters for a DataSetWriter. The JsonDataSetWriterMessageType is formally defined in Table 340.

Table 340 – JsonDataSetWriterMessageType definition

Attribute	Value
BrowseName	JsonDataSetWriterMessageType
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of DataSetWriterMessageType defined in 9.1.7.4.
HasProperty	Variable	DataSetMessageContentMask	JsonDataSetMessage‌ContentMask	PropertyType	Mandatory
Conformance Units
PubSub Model JSON

The DataSetMessageContentMask is defined in 6.3.2.3.1.

9.2.2.3 JsonDataSetReaderMessageType

This ObjectType represents UADP message mapping specific parameters for a DataSetReader. The JsonDataSetReaderMessageType is formally defined in Table 341.

Table 341 – JsonDataSetReaderMessageType definition

Attribute	Value
BrowseName	JsonDataSetReaderMessageType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of DataSetReaderMessageType defined in 9.1.8.4.
HasProperty	Variable	NetworkMessageContentMask	JsonNetworkMessage‌ContentMask	PropertyType	Mandatory
HasProperty	Variable	DataSetMessageContentMask	JsonDataSetMessage‌ContentMask	PropertyType	Mandatory
Conformance Units
PubSub Model JSON

The NetworkMessageContentMask is defined in 6.3.2.4.1.

The DataSetMessageContentMask is defined in 6.3.2.4.2.