B&B Electronics MESR321-SL-ML Quick Start Guide
Product Overview
Power 10 - 48 VDC
Mode Switch
5. Click “Login”. Password is blank from factory.
No password is necessary to operate the MESR
unit. The Configuration/General page appears.
Fiber/Ethernet Ports
LEDs
Male DB9 Port
Terminal Block Port
1
1. Power the device.
2. Connect the top RJ45 or optical connector
to a network drop using a standard network
cable. (The RJ45 ports on the model shown are
interchangeable. One may used for pass-through
Ethernet.)
3. Connect the Serial Device(s).
RS-232 with DB9: straight-through for DCE
device. Null modem for DTE device.
RS-422/485 with terminal blocks.
2
1. Use included CD to install Vlinx Modbus Gateway
Manager. If Autorun does not start, go to “My
Computer” and select the CD drive. You will see
a Vlinx MESR icon. Double-click it to launch the
installation.
2. To open Vlinx Modbus Gateway Manager: click
Start/Programs/B&B Electronics/Vlinx/Vlinx Modbus
Gateway Manager/Vlinx Serial Server Manager.
If the device does not connect, cycle (unplug-replug)
the power, then try again.
3. To configure via the network, select “Network”.
4. If you know the IP address, select “The device is
at this address,” and type in the IP address. If not,
select “I don’t know the IP address of the device.” Click
Connect.
(Alternative Method: Open a web browser and type
the IP address of the Gateway in the Address Bar.
When the Gateway is found the Login window will
appear.)
Set Up Hardware
Install/Setup
3
“I want DHCP” is preselected to set up the network
using dynamic IP addressing. The Gateway is set
up at the factory to receive an IP assignment from a
DHCP Server.
1. If a DHCP Server is not available on your network,
it will default to 169.254.102.39.
2. If a DHCP server is not available and the default
address does not work on your PC, change your
PC network settings to IP Address: 169.254.102.1,
Subnet Mask: 255.255.0.0, Default Gateway:
169.254.102.10 0.
If you are not able to use these settings in your
installation, refer to the User’s Manual for directions to
change the Gateway’s TCP/IP settings.
4
Note: The Vlinx Modbus Gateway Manager
software contains default parameter values that
are common to most Modbus networks.
1. TCP Settings:
“Connect to port” identifies TCP port used in TCP
client mode. Valid range is 1 to 65535. Default is
502. Response timeout is the maximum response time.
Valid range is from 1 to 65535. Default is 100ms.
2. TCP Server Settings:
“Listen on port” identifies TCP port in TCP server
mode. Valid range is from 1 to 65535. Default is
502. “Limit the number of connections” controls
the number of simultaneous TCP clients that can be
connected. Connection Filter Mode options like “allow
everyone,” “allow specific IP address” and “allow a
range of IP addresses” control which TCP clients can
connect.
Set Up Network
If You Wish to Set Up TCP
Troubleshooting
The primary check for correct operation is the
device LEDs.
For advanced information, see the Configuration
Manager menu, at the top of Vlinx Modbus
Gateway screen.
Recommended Accessories
and Power Supplies
PS12BVLB-INT-MED
Power Supply
http://www.bb-elec.PS12BVLB-INT-MED
DFMM- LCLC
Q
S
G
uick
tart
uide
Select Diagnostic for a check of communications
status with attached MESR321 device, and then
select the device for which the communications
check is desired. A report of reply times and
ping statistics is generated and can be saved.
Select Monitor to review activity logs of attached
MESR321 devices, then select the device for
which logged information is needed.
Logged information includes Time, Source &
Destination, Type of Event, Subscriber ID, Data
Collected, and Information the Vlinx Modbus
Gateway Manager program has gathered
since current login of the affected device.
DFMM-LCLC
Fiber Cable
http://search.bb-elec.com/?s=PPC_
GUIDE&q=DFMM-LCLC
Ethernet Cables
http://search.bb-elec.com/?q=
ethernet+cable
Fast East Answers
You can use your
smart phone to
access complete
documentation
on our website. Simply
scan the code to the
right.
1-888-948-2248 | Europe: +353 91 792444
www.bb-elec.com
MESR321
Isolated Industrial MODBUS
Ethernet to Serial Gateways
First Things First...
Before you begin, be sure you have
the following:
MESR321
CD with software and manuals
Mounting accessories kit
Additional items required but not included:
Ethernet cable(s)
Null modem cable(s)
Power Supply for terminal block
or barrel connector
Document number – pn9759_MESR321-xx_r0_4212_qsg
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350
Phone: 815-433-5100 | Fax: 815-433-5109
www.bb-elec.com | E-mail: info@bb-elec.com
© 2012 B&B Elect ronics Manufactur ing Company
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