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MGate MB3170, 1 Port RS-232/422/485 advanced Modbus TCP to Serial Communication Gateway

Features and Benefits

* Configuration is exceptionally easy
* 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

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 (patent pending)

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.

• LAN Interface
Number of Ports 2
Speed 10/100 Mbps, Auto MDI/MDIX
Connector(s) 8-pin RJ45
Magnetic Isolation Protection 1.5 KV built-in

• Serial Interface
Serial Standards RS-232/422/485, software selectable
Number of Ports
MGate MB3170/3170I: 1
MGate MB3270/3270I: 2
Connectors
MB3170/3170I: DB9 male for RS-232, Terminal block for RS-422/485
MB3270/3270I: DB9 male x 2
RS-485 Data Direction Control ADDC® (automatic data direction control)
ESD Protection ESD Protection: 15 KV for all signals

• Serial Communication Parameters
Data Bits 7, 8
Stop Bits 1, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF
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
Utilities MGate™ Manager Suite for Windows 98, ME, NT, 2000, XP, 2003, Vista
Multi-Master and Multi-Drop Master mode: 32 TCP slaves
Slave mode: 16 TCP masters (request queue 32-deep for each master)
Bonus Feature Smart Routing, Serial Redirectory, Priority Control

• Physical Characteristics
Enclosure Polycarbonate (2 mm)
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)
Operating Humidity 5 to 95% RH
Storage Temperature -20 to 85°C (-4 to 185°F)

• Power Requirements
Input Voltage 12 to 48 VDC
Power Connector Terminal block
Power Line Protection 1 KV burst (EN61000-4-4: EFT/B), 0.5 KV surge (EN61000-4-5)

• Regulatory Approvals
Safety UL (UL60950-1), TÜV (EN60950-1)
EMC CE (EN55022 Class A and EN55024), FCC Part 15 Subpart B Class A
Hazardous Location UL/cUL Class 1 Division 2 Groups A, B, C, D; ATEX Class 1 Zone 2 (pending)
Shock IEC60068-2-27
Freefall IEC60068-2-23
Vibration IEC60068-2-6
EN61000-4-2 (ESD) Level 3
EN61000-4-3 (RS) Level 3
EN61000-4-4 (EFT) Level 4
EN61000-4-5 (Surge) Level 3
EN61000-4-6 (CS) Level 3
EN61000-4-8 Passed
EN61000-4-11 Passed
EN61000-4-12 Passed
Marine DNV (pending)

• Warranty
Warranty Period 5 years
Details See www.moxa.com/warranty