MQTT is a communication protocol that has taken off in the IIoT community. It’s a light-weight, efficient protocol that works through a publisher / broker / subscriber model. It creates an easy way for field devices to communicate and retrieve data from a single location. In this article, we’ll go over MQTT and dive into an example of how you can publish data using a groov EPIC PAC and retrieve the data using a MQTT client.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/publishing-mqtt-data-using-opto-22-groov-epic