B&B Electronics MES1A, MES1B User Manual

Quick Start Guide

MES1A

RS-232 Model

Modbus TCP to

Modbus ASCII/RTU

Converters

Models: MES1A/MES1B

MES1B

RS-422/485 Model

Documentation Number MES1A/B-2106qsg PN7137-rev001

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□ MES1A or MES1B unit
□ Printed version of this MES1A/B Quick Start Guide
□ Printed manual
□ Software CD

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□ To change the IP Address, Default Gateway or Netmask, type 1.
□ To configure Master/Slave and Serial Interface settings, type 2.
□ Do not change any configuration settings in section 3.
□ To configure Modbus/TCP Settings, type 4.
□ To configure Modbus Master settings, type 5.

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□ To save your settings in the MES1A/B, type S.

□ Connect the MES1A/B to the network using an Ethernet

cable.

□ Connect your PC to the network.
□ Connect a 12 VDC power supply (not included) to the

MES1A/B and apply power. (10 – 30VDC, 3.6 Watts)

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□ Insert the software CD. It should auto-start into the

installation wizard.

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□

Connect Modbus device to the serial interface on the

MES1A/B using the correct cabling:

-

MES1A is a DTE: Use a straight through serial cable if
the Modbus device is a DCE; null modem if device is DTE

-

MES1B: Four-wire for RS-422, two-wire for RS-485, Set
RS-422/485 switch.

□

Your Modbus device should now be operational on the

network.

□ Follow the on screen installation wizard to install the

Device Installer software.

□ Software supports Windows 98, Me, 2K, XP, & NT 4.0

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LED Color/Status Function

Power Red Power applied

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□ Open the Device Installer software. It should detect the

MES1A/B and display XPort in the third level of the
Devices Tree.

□ Expand the tree and click the device IP Address.
□ Select the Telnet Configuration tab, then click Connect.
□ Press Enter within five seconds to go into Setup Mode.

Link

Activity Green (Blinking)

Note: The MES1A/B can be reset (rebooted) by pressing the Reset
switch for one second. Reset switch is accessed through a small hole in
the top of the enclosure.

Warning: Do not forget your password if used. There is no easy way to
get into the unit for configuration once you forget your password.

Orange

Green

Orange

Bootup, 10BaseT

100BaseT

Data on the network

Bootup

Documentation Number MES1A/B-2106qsg PN7137-rev001

815-433-5100 Fax [phone] www.bb-elec.com [e-mail] [e-mail]

International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA

European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland

[phone] Fax [phone]

www.bb-europe.com [e-mail] [e-mail]