Enabling Data Change Notification
Note:
Every notification creates its own publishable document. The name of the publishable document is the name of the notification prefixed with PublishDocument. Example: If the name of the notification is datachange then the name of publishable document is datachangePublishDocument.
![*](icon_task_xpe.png)
To enable data change notification
1. Click on Notification_namePublishDocument.
Parameter | Description/Action |
Subscription | id. Id of the Subscription object created in the OPC UA Server. Name. The given name of the Subscription or Listener. This attribute helps to identify from which listener you get the notification. |
data | nodeName. The name of the node from which you get the notification. value. The actual value of the node. serverTimestamp. The server timestamp for the value. sourceTimestamp. The source timestamp for the value. serverPicoseconds. The picoseconds that are added to the serverTimestamp. sourcePicoseconds. The picoseconds that are added to the sourceTimestamp. |
statusCode | It defines the sever's ability to access the value. The following parameters are described: name. It defines the name of the status code. value. It defines the value of the status code. description. It gives the description of the status code. |