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 93.

Table 93 – JsonNetworkMessageContentMask values

Value

Bit No.

Description

NetworkMessageHeader

0

The JSON NetworkMessage header is included in the NetworkMessages.

If this bit is false, bits 3 and 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 is ignored (see 6.3.2.3.1).

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.

The NetworkMessage can only contain DataSetMessages with the same DataSetClassId. If DataSetMessages have different DataSetClassIds they must be sent in individual NetworkMessages.

ReplyTo

5

Reserved.

WriterGroupName

6

The WriterGroup name is included in the NetworkMessages.

The JsonNetworkMessageContentMask representation in the AddressSpace is defined in Table 94.

Table 94 – JsonNetworkMessageContentMask definition

Attribute

Value

BrowseName

JsonNetworkMessageContentMask

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Others

Subtype of UInt32 defined in OPC 10000-5

HasProperty

Variable

OptionSetValues

LocalizedText []

PropertyType

Conformance Units

PubSub Parameters JSON