The DataSetMessageContentMask defines the flags for the content of the DataSetMessage header. The UADP message mapping specific flags are defined by the UadpDataSetMessageContentMask DataType.
The UadpDataSetMessageContentMaskDataType is formally defined in Table 101.
Table 101 – UadpDataSetMessageContentMask Values
Value
Bit No.
Description
Timestamp
0
If this flag is set, a timestamp shall be included in the DataSetMessage header.
PicoSeconds
1
If this flag is set, a PicoSeconds timestamp field shall be included in the DataSetMessage header. This flag is ignored if the Timestamp flag is not set.
Status
2
If this flag is set, the DataSetMessage status is included in the DataSetMessage header. The rules for creating the DataSetMessage status are defined in Table 34.
MajorVersion
3
If this flag is set, the ConfigurationVersion.MajorVersion is included in the DataSetMessage header.
MinorVersion
4
If this flag is set, the ConfigurationVersion.MinorVersion is included in the DataSetMessage header.
SequenceNumber
5
If this flag is set, the DataSetMessageSequenceNumber is included in the DataSetMessage header.
The UadpDataSetMessageContentMask representation in the AddressSpace is defined in Table 102.
