MES1x-2106ds - 1/4
International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com
European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
+353 91 792444 Fax +353 91 792445 www.bb-europe.com orders@bb-europe.com support@bb-europe.com
PRODUCT INFORMATION B&B ELECTRONICS
Models: MES1A, MES1B
Ethernet Enable Modbus Serial
Ports on Industrial Equipment
with Modbus Ethernet Serial Servers
MES1A MES1B
Features
• Converts Modbus ASCII/RTU to Modbus/TCP
• Small, economical and configurable
• Modbus Master and Modbus Slave operation
• DIN rail & panel mount options
• Connection of up to 32 serial modbus devices (MES1B)
• CE approved
MES1A and MES1B Modbus TCP to Modbus ASCII/RTU converters are easy-to-use, cost-effective solutions for connecting new
and existing Modbus ASCII/RTU serial devices to TCP/IP networks. The MES1A provides this connection for Modbus devices
with RS-232 interfaces; the MES1B facilitates Modbus devices with RS-422 four-wire point-to-point interfaces, or RS-485 four or
two-wire multi-drop bus connections.
MES1A and MES1B are flexible devices that allow for many different modbus network configurations.
1. Modbus ASCII/RTU slave devices can communicate over a TCP/IP network to Modbus TCP/IP masters.
2. Modbus ASCII/RTU master devices can communicate over TCP/IP networks to modbus ASCII/RTU master devices
3. Modbus ASCII/RTU slave devices can communicate over a TCP/IP network to other modbus ASCII/RTU devices.
In this mode 2 devices are required to allow the modbus serial protocol to tunnel over a TCP/IP network.
Through the use of both panel and DIN rail mounting options and support for screw terminal block interfaces for both power and
serial, MES1B is designed to meet a variety of industrial applications.
Typical Network Configurations
MES1x-2106ds - 2/4
International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com
European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
+353 91 792444 Fax +353 91 792445 www.bb-europe.com orders@bb-europe.com support@bb-europe.com
PRODUCT INFORMATION B&B ELECTRONICS
Specifications
• 10-30 VDC power input with removable terminal blocks
• Serial connections: MES1A: DB9; MES1B: terminal block
• Auto detecting 10/100 Mbps Ethernet RJ-45 port
• LED indicator provides at-a-glance operation
• Configuration via telnet console
• Password protected
• Operating temperature: -20 to 80 Cº
Models: MES1A, MES1B
Manual: Paper copy of this manual, PDF available
CD-ROM disc: XPort Device Installer software; PDF of MES1A/MES1B User Manual; PDF of Quick Start guide
Operating Systems Supported Windows 98/ME/2000/XP/NT 4.0 (call B&B Tech Support for other operating systems)
Dimensions MES1A/MES1B – 1.25 x 4.5 x 4.75 in (3.2 x 11.3 x 12.2 cm)
Power Supply Requirements: 10 VDC to 30VDC @ 3.6W
Power Supply: Not included
Power Connector: Removable screw terminal (2) block with screw down
Power Consumption: 12VDC @ 300 mA
Operating Temperature: -20 to 80 °C (-4 to 176 °F)
Storage Temperature: −40 to 85 °C (−40 to 185 °F)
Humidity: 10% to 90% R.H. non-condensing
Approvals: CE, FCC Class B
Link Integrity Indicator: Green/Orange LED (on Ethernet connector)
Activity Indicator: Green/Orange LED (on Ethernet connector)
Power Indicator: Red LED
Reset Switch Recessed momentary switch, press for 1 second to reboot (hardware reset)
Ethernet Connector: Single RJ-45 female (with built-in LED indicators)
Ethernet Standards Suppor t ed: IEEE 802.3 10/100 Mbps auto-detecting, 10BaseT, 100BaseTX
Protocols Supported: TCP, UDP, DHCP, SNMP, TELNET, ICMP, ARP, TFTP, Modbus ASCII, Modbus RTU, Modbus/TCP
Serial Protection: 12V TVS for MES1A; 5 V TVS for MES1B
Serial Connector: MES1A - 9 pin D-type male (DB-9M)
MES1B – removable screw terminal (5) block with screw down
Interface Lines Supported: MES1A – RS-232 TD, RD, GND
MES1B – RS-422/485 TDA(-), TDB(+), RDA(-), RDB(+), GND
Serial Data Rates: 300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, 57600, 115200 bps
Parity: None, Even, Odd
Data Bits: 7 or 8
Stop Bits: 1, 2
Flow Control: None
Configuration Modes: Telnet, XPort Device Installer with integrated Telnet
Device Management: SNMP – RFC 1213/1215/1316/131
IP Address Assignment: Static IP or DHCP (IP is set to 0.0.0.0)
Accessories: DIN/Panel mount bracket
MES1x-2106ds - 3/4
International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com
European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
+353 91 792444 Fax +353 91 792445 www.bb-europe.com orders@bb-europe.com support@bb-europe.com
PRODUCT INFORMATION B&B ELECTRONICS
Dimensional Diagram of the MES1A
Dimensional Diagram of the MES1B
MES1x-2106ds - 4/4
International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com
European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
+353 91 792444 Fax +353 91 792445 www.bb-europe.com orders@bb-europe.com support@bb-europe.com
PRODUCT INFORMATION B&B ELECTRONICS
DECLARATION OF CONFORMITY
Manufacturer’s Name: B&B Electronics Manufacturing Company
Manufacturer’s Address: P.O. Box 1040
707 Dayton Road
Ottawa, IL 61350 USA
Model Numbers: ESR901WB
Description: 1 Port 802.11b Wireless Serial Server [
Type: Light industrial ITE equipment
Application of Council Directive: 89/336/EEC
Standards: EN 55022
EN 61000-6-1
EN 61000 (-4 -2, -4-3, -4-4, -4-5, -4-6, -4-8, -4 -11)
Michael J. Fahrion, Director of Engineering
