B&B Electronics MES1A, MES1B Connecting the Hardware

Hardware Overview

Manual Documentation Number: MES1A/MES1B-2106m PN7138-rev001

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-

europe.com

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Figure 6. RS-485 Two-Wire Connection

No jumpers are required to bridge the transmit and receive lines in

two-wire mode.

Power Connector

The Power Connector is a removable two-position screw terminal

block with screw down. The MES1A/B requires between 10 VDC

and 30 VDC (3.6 Watts). Typically a 12 VDC power adapter is

connected to the terminal block via bare wires. The terminal block

can be unplugged to remove the converter from service.

Figure 7. MES1A/B Power Connector

Connecting the Hardware

The MES1A is connected to its Modbus device via a DB-9M

connector and an RS-232 cable. The MES1A is configured as a

DTE. If the connected Modbus device is configured as a DCE, use a

Contents

Main Page Page Page Page Page T s ts nt en Page Page Page Page Features Page Link LED Activity LED Reset Switch RS-422/485 Switch (MES1B only) Ethernet Port Connector DB-9M Serial Port Connector (MES1A only) RS-422/485 Connector (MES1B only) RS-422/485 Four-Wire Mode RS-485 Two-Wire Mode Power Connector Connecting the Hardware Page Page Page Page Page Using the Device Installer Software System Requirements Installing the Device Installer Starting the Device Installer Discovering Devices Getting Device Details Connecting to the MES1A/B Page Page Page Navigating the Configuration Menu Saving Configuration Settings Quitting Without Saving Reconfiguring to Factory Settings To Reconfigure the MES1A to Factory Settings: To Reconfigure the MES1B, to Factory Settings: 1) Network/IP Settings IP Address DHCP Auto-IP Static IP Address Default Gateway Netmask Telnet Configuration Password 2) Serial and Mode Settings Protocol Attached Device Serial Protocol Serial Interface MES1A Serial Interface MES1B Serial Interface Serial Parameters 3) Modem/Configurable Pin Settings 4) Advanced Modbus Protocol Settings Slave Address / Unit ID Source 0 for Auto 1255 Allow Modbus Broadcasts Use MB/TCP 00BH/00AH Exception Responses 1 = No 2 = Yes Disable Modbus/TCP Pipeline Character Timeout Message Timeout Serial TX Delay after RX Swap 4x/0H to Get 3x/1x 5) Unit ID to IP Address Lookup Table Settings Close Idle TCP Sockets After Redundant Entry Retries After Add, Delete, Exit - Select Function Modbus Address From/To Slave IP Address Page Saving Device Lists Opening Device Lists Device List Display Options Display Devices Using Icons Display the Hardware (MAC) Address Adding a Device Manually Assigning an IP Address (using Device Installer) Using Device Installer to Assign an IP Address Using the Devices Details Tab Upgrading Firmware Installing Pre-Saved Configuration Files Saving Setup Records Installing Setup Records Logging Search and Upgrade Data Page Using Ping Using Help Page Page Modbus/TCP Hints and Tips