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DataSheet

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.

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

Specifications

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

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