MSG-21 IIoT Gateway

The MSG-21 is a compact industrial IIoT gateway designed to connect Modbus Serial and Modbus TCP devices with an MQTT server through either a 4G cellular network or Ethernet/WAN. It acts as a bridge between conventional industrial equipment and modern IIoT platforms.

It can collect data from devices such as PLCs, drives, HMIs, and I/O modules, then publish that information to an MQTT server at configurable intervals. Even during network interruptions, the device can retain data for later transmission.

With its built-in web server, remote configuration becomes simple, while TLS/SSL encryption helps ensure secure communication. The MSG-21 also supports digital input/output monitoring and control through SMS or MQTT.