User Manual
Your TrustWorthy Industrial IoT Partner
www.pusr.com
85
8.
MQTT gateway
Although the MQTT protocol has been around for nearly three decades, the design of the protocol makes it ideal for IIoT (Industrial
Internet of Things) applications, the latest trend in automation engineering. This is particularly true for applications that stress “active
notification,” in which devices provide data only when needed, as opposed to “passive notification,” in which devices are polled at
regular intervals. MQTT’s broker/client design eliminates the need for all devices in the system to be online at the same time. The
clients (i.e., “devices” or “things”) communicate directly with the broker, which plays the role of middleman to pass messages back
and forth between clients.
8.1.
Basic settings
When configuring the Broker information,Client ID, Host, and Port are already filled in by default. You can also modify it by yourself
based on the actual Broker information. We will use Free Public MQTT Server provided by EMQX Cloud as the MQTT server address
for quick testing.
Fig. 114
MQTT broker setting
If your broker has enabled user authentication, you can fill in the information of Username and Password in the configuration item.
