This DataType defines flags for DataSet fields.
The DataSetFieldFlags is formally defined in Table 6.
Table 6 – DataSetFieldFlags Values
|
Value |
Bit No. |
Description |
|
PromotedField |
0 |
The flag indicates if the field is promoted to the NetworkMessages or transport protocol header. Setting this flag increases the size of the NetworkMessages since information from the DataSetMessage body is also promoted to the header. Depending on the used security, the header including the field may be unencrypted. Promoted fields are always included in the header even if the DataSetMessage payload is a delta frame and the DataSet field is not included in the delta frame. In this case the last sent value is sent in the header. The order of the fields in the DataSetMetaData promoted to the header shall match the order of the fields in the header unless the header includes field names. |
The DataSetFieldFlags representation in the AddressSpace is defined in Table 7.
Table 7 – DataSetFieldFlags Definition
|
Attributes |
Value |
||
|
BrowseName |
DataSetFieldFlags |
||
|
IsAbstract |
False |
||
|
References |
NodeClass |
BrowseName |
DataType |
|
Subtype of UInt16 defined in OPC 10000-5. |
|||
|
HasProperty |
Variable |
OptionSetValues |
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