The parameter NetworkMessageContentMask defines the optional header fields to be included in the NetworkMessages produced by the WriterGroup. The DataType for the JSON NetworkMessage mapping is JsonNetworkMessageContentMask.

The DataType JsonNetworkMessageContentMask is formally defined in Table 59.

Table 59 – JsonNetworkMessageContentMask Values

Value

Bit No.

Description

NetworkMessageHeader

0

The JSON NetworkMessage header is included in the NetworkMessages.

If this bit is false, bits 2 to 4 shall be 0.

DataSetMessageHeader

1

The JSON DataSetMessage header is included in each DataSetMessage.

If this bit is false then the DataSetMessageContentMask for the DataSetWriters are ignored (see 6.3.2.2.1).

SingleDataSetMessage

2

Each JSON NetworkMessage contains only one DataSetMessage.

PublisherId

3

The PublisherId is included in the NetworkMessages.

DataSetClassId

4

The DataSetClassId is included in the NetworkMessages.

ReplyTo

5

The ReplyTo is included in the NetworkMessages.

The JsonNetworkMessageContentMask representation in the AddressSpace is defined in Table 60.

Table 60 – JsonNetworkMessageContentMask Definition

Attributes

Value

BrowseName

JsonNetworkMessageContentMask

IsAbstract

False

References

NodeClass

BrowseName

DataType

Subtype of UInt32 defined in OPC 10000-5.

HasProperty

Variable

OptionSetValues

LocalizedText [ ]

This Structure DataType is used to represent the JSON NetworkMessage mapping specific WriterGroup parameters. It is a subtype of WriterGroupMessageDataType defined in 6.2.5.6.3.

The JsonWriterGroupMessageDataType is formally defined in Table 61.

Table 61 – JsonWriterGroupMessageDataType Structure

Name

Type

Description

JsonWriterGroupMessageDataType

Structure

networkMessageContentMask

JsonNetworkMessageContentMask

Defined in 6.3.2.1.1.

The DataSetMessageContentMask defines the flags for the content of the DataSetMessage header. The JSON message mapping specific flags are defined by the JsonDataSetMessageContentMask DataType.

The JsonDataSetMessageContentMask DataType is formally defined in Table 62.

Table 62 – JsonDataSetMessageContentMask Values

Value

Bit No.

Description

DataSetWriterId

0

If this flag is set, a DataSetWriterId shall be included in the DataSetMessage header.

MetaDataVersion

1

If this flag is set, the ConfigurationVersion is included in the DataSetMessage header.

SequenceNumber

2

If this flag is set, the DataSetMessageSequenceNumber is included in the DataSetMessage header.

Timestamp

3

If this flag is set, a timestamp shall be included in the DataSetMessage header.

Status

4

If this flag is set, an overall status is included in the DataSetMessage header.

The JsonDataSetMessageContentMask representation in the AddressSpace is defined in Table 63.

Table 63 – JsonDataSetMessageContentMask Definition

Attributes

Value

BrowseName

JsonDataSetMessageContentMask

IsAbstract

False

References

NodeClass

BrowseName

DataType

Subtype of UInt32 defined in OPC 10000-5.

HasProperty

Variable

OptionSetValues

LocalizedText [ ]

This Structure DataType is used to represent JSON DataSetMessage mapping specific DataSetWriter parameters. It is a subtype of the DataSetWriterMessageDataType defined in 6.2.3.5.3.

The JsonDataSetWriterMessageDataType is formally defined in Table 64.

Table 64 – JsonDataSetWriterMessageDataType Structure

Name

Type

Description

JsonDataSetWriterMessageDataType

Structure

dataSetMessageContentMask

JsonDataSetMessageContentMask

Defined in 6.3.2.2.1.

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 6.3.2.2.1.

This Structure DataType is used to represent JSON DataSetMessage mapping specific DataSetReader parameters. It is a subtype of the DataSetReaderMessageDataType defined in 6.2.8.11.3.

The JsonDataSetReaderMessageDataType is formally defined in Table 65.

Table 65 – JsonDataSetReaderMessageDataType Structure

Name

Type

Description

JsonDataSetReaderMessageDataType

Structure

networkMessageContentMask

JsonNetworkMessageContentMask

Defined in 6.3.2.3.1.

dataSetMessageContentMask

JsonDataSetMessageContentMask

Defined in 6.3.2.3.2.