A NetworkMessage with MessageType ActionResponder is a JSON object with the fields defined in Table 193.
All fields are encoded using CompactEncoding OPC UA JSON Data Encoding defined in OPC 10000-6.
Table 194 – JSON ActionResponder definition
|
Name |
Type |
Description |
|
MessageId |
String |
A globally unique identifier for the message. This value is mandatory. |
|
MessageType |
String |
This value shall be “ua-action-responder”. This value is mandatory. |
|
PublisherId |
String |
The Publisher that sent the message. This value is mandatory. |
|
Timestamp |
UtcTime |
When the message was first sent to the Middleware. This value is mandatory. |
|
Connection |
PubSubConnectionDataType |
The PubSubConnectionDataType Structure is defined in 6.2.7.5.1. Only DataSetWriters used for Actions are included. All WriterGroups and DataSetWriters not used for Actions shall be excluded. The ReaderGroup lists in PubSubConnectionDataType shall be empty. The configuration properties shall not be included in the PubSubConnectionDataType, WriterGroupDataType and DataSetWriterDataType. This value is mandatory. |