Using communication packages

From OPC Labs Knowledge Base


Specifying the communication package

In order to select this communication package in OPC UA PubSub tools, you need to set a custom property on a PubSub connection as follows:

  • Property namespace: http://opclabs.com/OpcUA/PubSub
  • Property name: MessageChannel!
  • Property datatype: String
  • Property value: The type name of the message channel object. See the communication package documentation (example: OpcLabs.Mqtt.MqttClientMessageChannel,OpcLabs.Mqtt).

How this is done depends on the concrete software you are using.

EasyUASubscriber object

Usually, you will use the same communication package across your solution, but there is nothing that prevents you to use a different one with each connection.

OpcCmd tool

UADemoPublisher tool

Configuring the communication package