MGate MB3180/MGate MB3280/MGate MB3480

MGate MB3180/MGate MB3280/MGate MB3480

1, 2, or 4 port Modbus serial (RTU)  to Modbus TCP gateway

These devices are Modbus RTU to Modbus TCP gateway converter for 1, 2, & 4 Serial ports. Up to 16 simultaneous Modbus TCP masters are supported, with up to 31 RTU/ASCII slaves per serial port. For RTU/ASCII masters, up to 32 TCP slaves are supported. Standard Modbus network integration, Moxa protocol converter gateway The three standard MGate™ Modbus RTU to Modbus TCP gateway converters (MB3180, MB3280, and MB3480) are designed for easy integration of Modbus RTU to Modbus TCP gateway.. With these models, Modbus serial slave devices can be seamlessly incorporated into an existing Modbus TCP network, and Modbus TCP slaves can be made accessible to serial masters. The MB3180, MB3280, and MB3480 offer features that make network integration easy, customizable, and compatible with almost any Modbus network. High density, cost effective gateway The MGate™ MB3000 Series Modbus RTU to Modbus TCP gateway converters can effectively connect a high density of Modbus nodes to the same network. The MB3280 can manage up to 62 serial slave nodes, and the MB3480 can manage up to 124 serial slave nodes. Each RS-232/422/485 serial port can be configured individually for Modbus RTU or Modbus ASCII operation and for different baudrates, allowing both types of networks to be integrated with Modbus TCP through one Modbus gateway. Auto-Device Routing for Easy Configuration (Patent Pending) Moxa’s Auto-Device Routing function helps eliminate many of the problems and inconveniences encountered by engineers who need to configure large numbers of Modbus devices. A single mouse click is all that’s required to set up a slave ID routing table and configure Modbus gateways to automatically detect Modbus requests from a supervisory control and data acquisition (SCADA) system. By removing the need to manually create the slave ID routing table, the Auto-Device Routing function saves engineers significant time and cost. Visit Microsite for protocol converters to see our range of protocol converters clicking here

Name Action
mgate-mb3180-mb3280-mb3480-series ds


  • Supports Auto-Device Routing for easy configuration
  • Supports route by TCP port or IP address for flexible deployment
  • Convert between Modbus TCP and Modbus RTU/ASCII
  • 1 Ethernet port and 1, 2, or 4 RS-232/422/485 ports
  • 16 simultaneous TCP masters with up to 32 simultaneous requests per master
  • Easy hardware setup and configuration 

Ordering info

Available Models
Model No. Description
MGate MB3180 1-port standard Modbus gateway
MGate MB3280 2-port standard Modbus gateway
MGate MB3480 4-port standard Modbus gateway
Optional Accessories
Model No. Description
DK35A DIN-Rail Mounting Kit (35 mm)
Mini DB9F-to-TB DB9 Female to Terminal Block connector
MXview Industrial network management software designed for converged automation networks


Convert Modbus RTU to Modbus TCP in 60 Seconds

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