Special Features
4G Modem (LTE Cat1)
Remotely monitoring data on MQTT server
Retains the data in-case of network failure
Embedded web server for easy configuration
DHCP / static IP support
Configurable RS-485 baud rate, parity and stop bit
Completely isolated in both RS-485 and RJ45
One touch recovery (Factory reset configuration)
LED indication for easy setup and trouble shooting
SMS or MQTT alert on event of digital input
Digital output operates via SMS or MQTT
MQTT on cellular network or WAN is selectable
Selectable publishing interval for data publish to MQTT server (5 Sec. to 1440 minutes)
Modbus Serial or TCP register write via MQTT
Support up to 32 Modbus serial devices or 512 Modbus read register (max.)
Support up to 8 Modbus TCP slave devices or 256 Modbus read register (Max.)
Support up to 8 Modbus TCP slave devices or 256 Modbus read register (Max.)
DIN-Rail mounting option
Descriptions
The MSG-21 is a compact, cost-effective gateway designed to seamlessly connect Modbus serial and TCP slave devices to MQTT servers over cellular networks or WAN. Serving as a protocol converter, it enables easy integration of industrial devices like PLCs, drives, IO modules, and HMIs into IIoT systems. With its plug-and-play functionality, the MSG-21 can be remotely configured via a web server, allowing users to adjust parameters such as MQTT publishing intervals, Modbus settings, and network configurations. It is fully compatible with any IIoT server supporting the MQTT protocol and ensures secure communication through encrypted TLS/SSL protocols.
Installation and management of the MSG-21 are straightforward, thanks to its user-friendly interface and built-in web server for configuration. The device also features Modbus TCP server functionality, enabling real-time monitoring of digital inputs and outputs from both the gateway and connected Modbus serial devices. This makes the MSG-21 an ideal solution for industrial applications looking to easily connect legacy equipment to modern IIoT infrastructure.
