MGate MB3170 & MB3270

 

Features and Benefits

  • Configuration is exceptionally easy Download Moxa’s MGate Gateway Brochure and White Paper
  • Slave mode supports 16 TCP masters and up to 62 serial slaves at the same time
  • Master mode supports 32 TCP slaves at the same time
  • Emergency request tunnels ensure QoS control
  • Serial redirector function provided
  • Embedded Modbus protocol analyzer
  • Redundant dual DC power inputs
  • Built-in Ethernet cascading for easy wiring
  • Supports Moxa’s MXview industrial network management software via the MXview Plug-in
MGate MB3170/3270 Modbus gateway has received Taiwan Excellence and Good Design awards.

Overview

The MB3170 and MB3270 are advanced Modbus gateways that provide maximum flexibility for integrating industrial Modbus networks of all types and sizes. They are designed to integrate Modbus TCP, ASCII, and RTU devices in almost any master and slave combination, including serial master to serial slave, or simultaneous serial and Ethernet masters. A special priority control feature allows urgent commands to obtain immediate response. All models are ruggedly constructed, are DIN-rail mountable, and offer built-in optical isolation for serial signals as an option.

Integration of TCP masters without alteration to Modbus RTU/ASCII network or software

The MB3270 can integrate Modbus TCP with Modbus RTU/ASCII,without modifying the existing Modbus RTU/ASCII architecture or software. With the serial redirector function, a serial master can maintain direct access to serial slave devices through a specially mapped serial port. This allows the serial and TCP masters to access serial slaves simultaneously.

Cascading Ethernet ports for easy wiring

Advanced models of the MGate™ MB3000 series have two Ethernet ports to make network wiring easier. Dual Ethernet ports allow users to string multiple Modbus gateways together using standard RJ45 Ethernet cables, eliminating the need for a separate Ethernet switch.

Redundant power inputs

Advanced models of the MB3000 series have dual power inputs for greater reliability. The power inputs allow simultaneous connections to two live DC power sources, so that continuous operation is provided even if one power source fails. The higher level of reliability makes these advanced Modbus gateways ideal for demanding industrial applications.

Warning by relay output

A relay output is provided for the Ethernet link and power input status. The relay output gives maintenance engineers an additional tool for troubleshooting and maintenance.

Priority control for urgent commands (Patented)

As Modbus networks increase in size and complexity, the lag time between commands and responses becomes a major concern. Advanced models of the MB3000 series provide a priority control function for urgent commands, allowing users to force certain commands to get an immediate response. Depending on your system’s requirements, different methods are available to define which commands receive priority.

MB3170_MB3270_Dimensions

Ethernet Interface
Number of Ports 2 (1 IP)
Speed 10/100 Mbps, Auto MDI/MDIX
Connector 8-pin RJ45
Magnetic Isolation Protection 1.5 KV built-in
Serial Interface
Number of Ports MB3170/3170I: 1MB3270/3270I: 2
Serial Standards RS-232/422/485, software selectable
Connectors MB3170/3170I: DB9 male for RS-232, Terminal block for RS-422/485MB3270/3270I: DB9 male x 2
ESD Protection 15 KV for all signals
RS-485 Data Direction Control ADDC® (automatic data direction control)
Pull High/Low Resistor for RS-485 1 KΩ, 150 KΩ
Terminator for RS-485 120 Ω
Serial Communication Parameters
Data Bits 7, 8
Stop Bits 1, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, DTR/DSR (RS-232 only)
Baudrate 50 bps to 921.6 Kbps
Serial Signals
RS-232 TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Software
Operation Modes RTU Slave, RTU Master, ASCII Slave, ASCII Master
Configuration Options Web Console, Serial Console, Telnet Console, Windows Utility
Utilities MGate Manager for Windows 98/ME/NT/2000, Windows XP/2003/Vista/2008/7 x86/x64
Multi-master and Multi-drop Master mode: 32 TCP slavesSlave mode: 16 TCP masters (request queue 32-deep for each master)
Bonus Features Smart Routing, Serial Redirection, Priority Control
Physical Characteristics
Housing Plastic
Weight MGate MB3170: 360 gMGate MB3270: 380 g
Dimensions Without ears: 29 x 89.2 x 118.5 mm (1.14 x 3.51 x 4.67 in)With ears extended: 29 x 89.2 x 124.5 mm (1.14 x 3.51 x 4.90 in)
Environmental Limits
Operating Temperature Standard Models: 0 to 55°C (32 to 131°F)Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Power Requirements
Input Voltage 12 to 48 VDC
Power Connector Terminal block
Power Consumption MGate MB3170: 435 mA (max.)MGate MB3170I: 555 mA (max.)MGate MB3270: 435 mA (max.)MGate MB3270I: 510 mA (max.)
Relay Output 1 Digital relay output to alarm (normal close): Current carying capacity1 A @ 30 VDC
Standards and Certifications
Safety UL 60950-1, EN 60950-1
Hazardous Location UL/cUL Class I Division 2 Groups A/B/C/D, ATEX Zone 2, IECEx (for -IEX models)
EMC CE, FCC
EMI EN 55022 Class A, FCC Part 15 Subpart B Class A
EMS EN 55024,EN 61000-4-2 (ESD) Level 3,EN 61000-4-3 (RS) Level 3,EN 61000-4-4 (EFT) Level 4,EN 61000-4-5 (Surge) Level 3,

EN 61000-4-6 (CS) Level 3,

EN 61000-4-8,

EN 61000-4-11,

EN 61000-4-12

Marine DNV
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6
Reliability
MTBF (mean time between failures) MGate MB3170: 210,794 hrsMGate MB3270: 125,234 hrs
Warranty
Warranty Period 5 years
Details See www.moxa.com/warranty