Protocol gateways
Protocol gateways translate between different OT protocols, bridging the gap between legacy fieldbuses and modern industrial Ethernet.
Devices like MGates handle protocols such as Modbus RTU/TCP, PROFINET, EtherNet/IP, CANopen, IEC 61850, PROFIBUS and DNP3.
Areas of application
When legacy field devices such as PLCs, drives or sensors only support serial bus communication, a protocol gateway can ensure that these devices can communicate with SCADA systems or IIoT platforms - without the need for equipment replacement.
In systems with both fieldbus and Ethernet applications, gateways can ensure traffic segmentation and translation, for example. Modbus RTU → Modbus TCP, PROFIBUS → PROFINET or CANopen/J1939 → Modbus TCP.
Many gateways offer built-in tools such as traffic monitor, protocol diagnostics and status monitoring, simplifying troubleshooting and ensuring stable operation.
Benefits and advantages
Fast integration
Plug-and-play with web-based setup - no complex programming needed
Segmentation
Network traffic splitting improves security, stability and performance in OT architecture
Robust industrial design
Units come with DIN rail mounting, wide working ranges (typically -40°C to +75°C) and redundant power supply
See a small selection of our protocol gateways here
MGate MB3170/MB3270 Modbus gateway, Moxa
MGate MB3170/MB3270 are advanced Modbus gateways that connect Modbus TCP with Modbus RTU/ASCII and enable secure and flexible integration of serial devices in Ethernet networks.
Advantages:
- 1 or 2 RS-232/422/485 serial ports
- Supports Modbus TCP, RTU and ASCII
- Up to 32 Modbus TCP clients/servers
- Redundant 12-48 VDC power supply
- Operating temperature up to -40 to +75 °C
- Item no.: 42416
MGate 5103 Modbus to PROFINET gateway, Moxa
MGate 5103 is an industrial gateway for protocol conversion between Modbus, EtherNet/IP and PROFINET in automated systems.
Advantages:
- Modbus RTU/ASCII/TCP master/slave
- PROFINET IO Device
- EtherNet/IP adapter
- Built-in Modbus traffic monitor
- Operating temperature up to -40 to +75 °C
- Item no.: 50192
MGate 5119 IEC 61850 gateway, Moxa
MGate 5119 is an industrial gateway for integrating Modbus, IEC 101/104 and DNP3 into IEC 61850-based systems.
Advantages:
- IEC 61850 MMS server
- Modbus RTU/ASCII/TCP master
- DNP3 and IEC 60870-5-101/104
- Built-in SCL generator
- 2 kV serial isolation
- Item no.: 52869