Advanced Modbus Serial-to-TCP Gateways – Moxa MGate MB3270

The MGate MB3270 provides both serial-to-Ethernet communication and serial (Master)-to-serial (Slave) communication. In addition, the gateways support simultaneously connecting serial and Ethernet masters with serial Modbus devices.  The MB3270 gateway can be accessed by up to 32 TCP master/clients or connect to up to 32 TCP slave/servers. Routing through the serial ports can be controlled by IP address, TCP port number, or ID mapping. A featured priority control function allows urgent commands to obtain an immediate response. All models are rugged, DIN-rail mountable, and offer optional built-in optical isolation for serial signals.

MGate MB3270
Moxa MGate MB3270
  • Integration of TCP masters without alteration to Modbus RTU/ASCII network or software
  • Serial redirector function, a serial master can maintain direct access to serial slave devices through a specially mapped serial port.
  • Cascading Ethernet ports for easy wiring


MB3270 Ethernet Cascading
MB3270 Ethernet Cascading
  • Redundant power inputs
  • Warning by relay output

More detail about MB3270