MQTT

Cloud connectivity

MQTT is a TCP/IP messaging protocol mainly

used for lightweight messaging to the cloud.

In the environment of MQTT, edge devices like

controllers act as clients and communicate with

a broker situated in the cloud.

They publish data based on events using topics.

Other clients like SCADA systems or monitoring

applications can subscribe to these topics and

receive data as they arrive. This enables the easy

and low-bandwidth connection of many devices.

AC500 V3 uses TLS encryption to establish secure

communication.