The NetworkMessageContentMask with DataType JsonNetworkMessageContentMask indicates the optional header fields included in the received NetworkMessages. The JsonNetworkMessageContentMask DataType is defined in 6.3.2.1.1.

The DataSetMessageContentMask with the DataType JsonDataSetMessageContentMask indicates the optional header fields included in the DataSetMessages.

The JsonDataSetMessageContentMask DataType is defined in 6.3.2.3.1.

This Structure DataType is used to represent JSON DataSetMessage mapping specific DataSetReader parameters. It is a subtype of the DataSetReaderMessageDataType defined in 6.2.9.13.3.

The JsonDataSetReaderMessageDataType is formally defined in Table 101.

Table 101 – JsonDataSetReaderMessageDataType structure

Name	Type	Description
JsonDataSetReaderMessageDataType	Structure	Subtype of DataSetReaderMessageDataType defined in 6.2.9.13.3.
NetworkMessageContentMask	JsonNetworkMessageContentMask	Defined in 6.3.2.4.1.
DataSetMessageContentMask	JsonDataSetMessageContentMask	Defined in 6.3.2.4.2.

Its representation in the AddressSpace is defined in Table 102.

Table 102 – JsonDataSetReaderMessageDataType definition

Attributes	Value
BrowseName	JsonDataSetReaderMessageDataType
IsAbstract	False
Subtype of DataSetReaderMessageDataType defined in 6.2.9.13.3.
Conformance Units
PubSub Parameters JSON

The parameter DataSetClassId with DataType Guid defines a DataSet class related filter. If the value is null or the parameter is not set, the DataSetClassId filter is not applied.

The parameter is configured in the DataSetReaderProperties with the Key 0:DataSetClassId.