MG5011/5012 Series

2-port RS-232 / 485 / 422 to Ethernet Modbus Gateway

Support 2 serial port to 1 10/100Base-T(X) Ethernet interface
Support 1 RS-485/422 port and 1 RS-232 port
Conforms to TCP, UDP, ModbusTCP, ModbusRTU protocols
Conforms to ARP, ICMP, HTTP, and TFTP client protocols
Supports Modbus Slave mode
The maximum support of 4 TCP master connections in Slave mode
High strength IP40 shell and industrial-grade EMC design
Metal case, 35mm DIN-Rail Mounting
Support 12~48VDC power input
Support -40~75°C wide operating temperature range
Overview Specifications Models Resources

Overview of 2-port  RS-232 / 485 / 422 to Ethernet Modbus Gateway

MG5011/5012 series is Modbus gateway designed for integrating Modbus RTU/ASCII and Modbus TCP networks; they can achieve the conversion between Modbus RTU/ASCII and Modbus TCP protocols. This product supports 2 RS485 or RS-422 serial port to 1 100M Ethernet copper port. It adopts wall mounting to meet the requirements of different application scenes.

Modbus gateway supports multiple network protocols, such as Modbus, TCP, IP, UDP, TELNET, ARP, ICMP, HTTP, HTTPS, SNMP, DNS and DHCP protocols. It possesses complete management function, and supports access control, rapid configuration, online upgrading, etc. RTU Master, RTU Slave, ASCII Master, ASCII Slave and other operating modes are supported. It can provide users with good experience with friendly design of network management system interface, simple and convenient operation.

Based on industrial installation requirements, the DIN-Rail or wall mounting is provided. This product adopts the industry's excellent network program, -40~75°C working temperature range, can satisfy all kinds of industrial site requirements, provide convenient serial port communication solutions. Hardware adopts fanless, low power consumption and voltage design and has passed rigorous industrial standard tests, which can suit for the industrial scene environment with harsh requirements for EMC. It can be widely used in PLC control and management, Building Automation System, Health Care Automation System, measuring instrument and environmental forces monitoring system, etc.


Specifications of 2-port  RS-232 / 485 / 422 to Ethernet Modbus Gateway

Standard: 10Base-T, 100Base-TX
Rate: 10/100M Automatic Flow Control, MDI/MDI-X Autotunning
Interface quantity: 1
Interface form: RJ45
Duplex mode: Full/Half Duplex Mode Self-adaptive

Operating mode: TCP Server, TCP Client, UDP Server, UDP Client
Gateway Protocols
Built-in Modbus TCP and Modbus RTU protocols
Support Modbus RTU/ASCII

Support Modbus Slave mode
Slave mode to maximize the support of 4 TCP master Connection
Serial Port
Standard: RS-485/422, RS-232
RS-422 signal:TX+,TX-, RX+, RX-, GND
RS-485 signal: D+, D-, GND
RS-232 signal: TX, RX, GND
Check digit: None, Even, ODD
Data bits: 5bit, 6bit, 7bit, 8bit
Stop bit: 1bit, 2bit
Baud rate: 110~115200bps
Load capacity: RS-485/422 side supports 32 point polling environment (customizable 128 points)
Interface form: RS-485/422 and adopts 5-bit 5.08mm pitch terminal blocks
Interface form: RS-232 and adopts DB9-M interface
Power supply indicator, Ethernet port indicator, serial port indicator
Power Supply Wide DC power input 12~48VDC (12V/24V/48V typical)
7.62mm industrial terminal block

No-load Consumption:< 1.2W (@24VDC)
Full-load Consumption:< 1.68W (@24VDC)
Mechanical Properties Dimension(W×H×D): 40mm×128mm×102mm
Net weight: 300g
Housing: Metal, IP40 protection
Installation: DIN rail mounting


Working temperature:-40℃~85℃
Storage temperature: -40℃~ 85℃
Relative humidity: 5% ~ 95% (no condensing) 

Industrial Standard

IEC61000-4-2(ESD):±8KV Contact, ±15KV Air
IEC61000-4-4(EFT):Power ±4KV, Data Cable ±4KV
IEC61000-4-5(Surge):Power ±4KV CM/ ±1KV DM, Data Cable±4KV
IEC61000-4-6(CS):3V (10KHZ-150KHZ), 10V (150KHZ-80MHZ)
IEC61000-4-16(MS):30V COUNT 300V, 1S
IEC60068-2-32(Free Fall)
IEC61000-6-2(General Industrial Standard)
Warranty 5 years

Available Models




RS-485/422 Combo 1


 RS-485 x 2





  CK7220M Series Datasheet