Creating a MQTT connector - User Guide

The MQTT connector can be added via the DB Builder → Connectors tree under the PahoMqtt.

The connector URI has the following format:

tcp://[IP]:[port]

where:

IP – the IP address of the MQTT device

port - default for MQTT is 1883

If username is entered, then a password is also expected. These will be supplied to the broker on connection. If you have a non-authenticating broker, just leave username and password blank.

Additionally, the two tags below need to be added to the connector if there are points that are writable.

pahoMqttQos (number tag) - value being either 0, 1, or 2. Recommend setting it to 1. There is no difference between those values.

pahoMqttConstructor (string tag) - value being the name of the contructor function being used