Ethernet Modbus Gateway, Modbus TCP Gateway

Ethernet Modbus Gateway EMB-02R

Ethernet Modbus Two Port Modbus/TCP to Modbus RTU and Modbus ASCII Gateway

RoHS Compliant Modbus ethernet gateway
Enable serial Modbus devices to communicate with a Modbus/TCP host computer
Configuration via Browser, telnet or serial port
SNMP agent functionality
Protocol aware: minimum configuration needed
Two serial ports that each support RS-232, RS-422, RS-485 2 or 4 wire
RS-422/485 version with optical isolation available
10 or 100 Mbps ethernet
RS-232 interface speeds to 230 Kbps
RS-485 Bus mastering for two independent poll strings
DIN rail or wall mounting

FEATURES
DESCRIPTION
SPECIFICATIONS

General
Indicators (front panel)
Controls
Lan Connection
Data Port
Physical/Electrical

HOW TO ORDER

FEATURES

Configuration via Browser, telnet or serial port
Enable serial Modbus devices to communicate with a Modbus/TCP host computer
SNMP agent functionality
Protocol aware... minimum configuration needed
Two serial ports that each support RS-232, RS-422, RS-485 2 or 4 wire
RS-422/485 version with optical isolation available
10 or 100 Mbps ethernet
RS-232 interface speeds to 230 Kbps
RS-485 Bus mastering for two independent poll strings
RoHS and other certifications
5-30 VDC, and other power supply options available
DIN rail or wall mounting

The EtherModbus gateway allows serial Modbus RTUs to communicate and interoperate with Modbus/TCP based controllers. The Modbus standard protocol is an asynchronous protocol designed to connect directly to computer asynchronous ports. Modbus has been extended to operate over ethernet using the IP protocol suite. This gateway converts between the Modbus TCP/IP protocol and Modbus ASCII/RTU protocols transparently. The EMB-02 enables one or more MODBUS controllers to communicate with MODBUS ASCII/RTU based serial RTUs. It will not allow Modbus/TCP RTUs to operate with a serial MODBUS controller.

The Ethernet Modbus gateway contains two independent serial ports. Each may be configured as RS-232, RS-422, or RS-485 (2 or 4 wire). When configured for RS-485 4-wire, multiple RTU polling strings may be polled on each interface.

For other applications (point-to-point direct RS-232 links or point-to-multiple-points dialed links ) see the EtherPath single port serial server. The EtherPath uses TCP/IP.

A companion product, the EtherPoll is appropriate for applications using other protocols. The EtherPoll is protocol independent, and requires no knowledge of the RTU protocol. This allows it to work with any asynchronous byte-oriented protocol with no additional configuration. The EtherPoll uses UDP/IP. It's data sheet is here.

The EtherGate is another companion product that is protocol-aware. It enables serial SCADA devices to communicate via an ethernet network. The EtherGate is ideal for transporting SCADA protocols via ethernet. To transport SCADA protocols over Frame Relay circuits (without ethernet), use the DCB BPF Scada-FRAD.

SPECIFICATIONS

General

Configuration Methods
- Any web browser
- Telnet Menu Interface
- Direct Connection Menu Interface
SNMP agent functionality ifaces (with bus-mastering on the 4-wire)
Serial speeds from 300 bps to 230,000 bps
RJ45 10/100BaseT ethernet,ncluded
Two serial ports, DE-9 (commonly called a PC DB-9) DTE interface, individually configurable
RS-485 two or four wire interface
Set up via telnet command line interface, the serial port, or any web browser
No Dip-switches... only one reset/setup button!

RS-485 two or for wire interfaces (with bus-mastering on the 4-wire)

Serial speeds from 300 bps to 230,000 bps

LAN Connection

Interface: 10/100BaseT autoselected

Physical/Electrical

DIN rail or wall mount
1 lb
5mm x 78mm x 28 mm (W x H x D) 2.5 in x 3.25 in x 1.25 in (approximate)
5-30 volt DC (external power supplies available for 110 VAC, 220 VAC, 48VDC, 125VDC and others)
350ma @ 5 VDC, 200ma @ 12 VDC
Temperature Rated from -40 to +70 C, < 95% non-condensing humidity.

Front view
RS-232/422/485 Connector

Rear view
LAN and power Connectors

Front view of Isolated Version

Application

TYPICAL APPLICATIONS

Integrating a new Modbus/TCP host into an existing Modbus RTU or Modbus ASCII network.
Extending the life of existing serial RTUs when installing a new Modbus/TCP host computer.
Interface between Modbus/TCP host network and wireless network connecting serial Modbus RTUs

Item Number	Description	Price	Buy Now!
Need it fast? Buy on-line or call toll free 800-432-2638!
EMB-2R	EtherModbus; Dual Port RS-232/485/422 Modbus/TCP to serial Modbus gateway (5-30VDC and 120 VAC power supply)	$595	Qty:
EMB-2R-I	EtherModbus; Isolated RS-422/485 Dual Port Modbus/TCP to serial Modbus gateway (5-30VDC and 120 VAC power supply)	$695	Qty:
9501033	Optional 36-72 VDC Input Power Supply	$ 75	Qty:
9501081	Optional 125 VDC Input Power Supply	$ 125	Qty:
9902090	Optional DIN rail mounting clips	$ 5	Qty:



Data Comm for Business Inc. 2949 County Road 1000 E Dewey, Il 61840	Voice: 217-897-6600 Toll Free: 800-4-DCB-NET Toll Free: 800-432-2638	Email: Contact Page Web: www.dcbnet.com Fax: 217-897-8023
All DCB web pages copyright ©1995- Data Comm for Business, All rights reserved. EtherPath®, EtherSeries®, EtherPoll®, EtherBridge® and EtherModem® are Registered Trademarks of Data Comm for Business, Inc.

Ethernet Modbus Gateway EMB-02R

Ethernet Modbus Two Port Modbus/TCP to Modbus RTU and Modbus ASCII Gateway

Need it fast? Buy on-line or call toll free 800-432-2638!