Tech Note 5111, "MQTT Set Up," walks through the steps necessary to configure a Maple Systems HMI as an edge gateway for an MQTT network.
There are 4 main tasks that are addressed in the tech note:
- A project will be created that enables the HMI to act as an MQTT publisher.
- HMI memory addresses will be mapped to MQTT topics.
- The project will be run in the software HMI simulator on a PC and publish data to a public test broker.
- MQTT.fx will be used to subscribe to topics and receive data from the HMI application.