OPC Foundation
  • Documents
  • NodeSets
  • Search
7.2.2.3.2 DataSet Payload Header

Errata exists for this version of the document.

The encoding of the UADP DataSet payload header is specified in Table 79. The payload header is unencrypted. This header shall be omitted if bit 6 of the UADPFlags is false.

Table 79 – UADP DataSet Payload Header

Name

Type

Description

Count

Byte

Number of DataSetMessages contained in the NetworkMessage. The NetworkMessage shall contain at least one DataSetMessages if the NetworkMessage type is DataSetMessage payload.

DataSetWriterIds

UInt16 [Count]

List of DataSetWriterIds contained in the NetworkMessage. The size of the list is defined by the Count.

The DataSetWriterId identifies the PublishedDataSet and the DataSetWriter responsible for sending Messages for the DataSet.

A Subscriber can skip DataSetMessages from DataSetWriters it does not expect DataSetMessages from.

Please report errors or issues with the site to webmaster.

Copyright © 2025 - OPC Foundation