Variable DataSet Writer Properties
Items representing a variable DataSet writer.
The Variable DataSetWriter item type has the following properties:
| Name | Description | ID | Flags |
|---|---|---|---|
| ConfiguredSize | The parameter ConfiguredSize with the DataType UInt16 defines the fixed size in bytes a DataSetMessage uses inside a NetworkMessage. The default value is 0 and it indicates a dynamic length. If a DataSetMessage would be smaller in size (e.g.because of the current values that are encoded) the DataSetMessage is padded with bytes with value zero.In case it would be larger, the Publisher shall set bit 0 of the DataSetFlags1 to false to indicate that the DataSetMessage is not valid. | 12510 | Persisted, Hidden |
| DataSetFieldContentMask | A DataSet field consists of a value and related metadata. In most cases the value comes with status and timestamp information. Set flags to decide what to include in addition to the value in the DataSetMessage.(See OpcUa Part 14 1.04 chapter 7.2.3.3) | 12060 | Persisted, EnumeratedFlags |
| DataSet connected data | The name of the corresponding PublishedDataSet. I.e. the name of an apis module in this instance, that implements the IApisPublishedDataSet interface, and that will provide the dataset to publish. | 12100 | Persisted, DynamicEnumeration |
| DataSetWriterId | The DataSetWriterId with defines the unique ID of the DataSetWriter for a PublishedDataSet. It is used to select DataSetMessages for a PublishedDataSet on the Subscriber side. It shall be unique across all DataSetWriters for a PublisherId. All values, except for 0, are valid DataSetWriterIds. The value 0 is defined as null value. | 12050 | Persisted, ReadOnly |
| Diagnostics level | Define the level of diagnostics to be created. | 10150 | Persisted, Enumerated |
| Enabled | Whether the item is enabled or not. | 10100 | Persisted |
| JsonDataSetMessageContentMask | The DataSetMessageContentMask defines the flags for the content of the DataSetMessage header. | 12400 | Persisted, EnumeratedFlags |
| KeyFrameCount | The KeyFrameCount with DataType UInt32 is the multiplier of the PublishingInterval that defines the maximum number of times the PublishingInterval expires before a key frame message with values for all published Variables is sent.The delta frame DataSetMessages contains just the changed values.If no changes exist, the delta frame DataSetMessage shall not be sent.If the KeyFrameCount is set to 1, every message contains a key frame. | 12070 | Persisted |
| MajorVersion | The MajorVersion reflects the time of the last major change of the DataSet content. | 18050 | ReadOnly, InfoPage |
| DataSet message buffer size | The maximum number of DataSet that can be buffered internaly | 12110 | Persisted |
| MinorVersion | The MinorVersion reflects the time of the last change of the DataSet content. | 18051 | ReadOnly, InfoPage |
| Quality | Item quality | 3 | ReadOnly |
| Rights | Item access rights | 5 | ReadOnly |
| Time | Item timestamp | 4 | ReadOnly |
| Type | Item canonical datatype | 1 | ReadOnly |
| UadpDataSetMessageContentMask | The UadpDataSetMessageContentMask defines the flags for the content of the DataSetMessage header, when using UADP message mapping. | 12500 | Persisted, Hidden, EnumeratedFlags |
| Value | Item value | 2 | ReadOnly |
| WriterGroup itemname | The WriterGroupItem for this dataset writer. | 10200 | Persisted, APISLocalItem, DynamicEnumeration |
| Value identifier | The names to use in messages to identify values. SourceNodeId: selecr opcu ua nodeid to the value. ItemName: use the APIS itemname, SourceNodeId_Regex: Use the opcus nodid, but in addition manipulate this with regex. ItemName_Regex: Use APIS itemname and manipulate it with regex. | 12205 | Persisted |
| Regex source | If the name shall use regex: This parameter holds the string to search for. | 12210 | Persisted |
| Regex replace | If the name shall use regex: This parameter holds the replace string. | 12220 | Persisted |