B+B SmartWorx MESR321 Quick Start Manual

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QUICK START
GUIDE

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Before you begin, be
sure you have the following:

MESR321xx series

Isolated, Industrial Modbus

Ethernet to Serial Gateways

+ MESR321x gateway
+ 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

Recommended Accessories

# PS12BVLB-INT-MED
Power Sup ply

# DFMM- LCLC
Fiber Opt ic Cable

Ethernet Cables
(See website.)

Troubleshooting

7

The primary check for correct operation is the device LEDs.

For advanced information, see the Conguration Manager

menu at the top of Vlinx Modbus Gateway screen.

Select Diagnostic for a check of communications status

with attached MESR321x 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.

MODE SWITCH RESULT

Hold in for 0 to 2 seconds. Initiates a Hardware Reset.

Hold in for 2 to 10 seconds. Enters Console Mode.

Hold in for over 10 seconds. Reset to Factory Defaults.

Note: The Vlinx™ Modbus Gateway Manager software

contains default parameter values that are common to
most Modbus networks.

1. Change the Description of the serial port if needed.

2. Set the Mode to RS-232, RS-422 (4 wire), RS-485 (2
wire) or RS-485 (4 wire)..

3. Set the Baud Rate to control the speed of the port. Valid
rates range between 75 and 230.4k bits per second.

4. Stop Bits controls the number of bits for end of character.

5. Parity controls the error checking mode, with options of
No Parity, Odd, Even, Mark and Space.

There are additional Modbus conguration pages that may

be accessed by selecting “Next” at the bottom of each
page, or by selecting the desired page from the vertical list
in the left-hand column.

The Vlinx Modbus Gateway Manager defaults to options

like “Network” and “I don’t know the IP of the device.” If the
defaults meet your needs, you don’t need to set or change
them.

If you have completed the conguration, click Save to save

the conguration to the serial server. Allow 15 seconds for

the Gateway to reboot.

Click Connect. You should see a list of all devices on the

network, including your new device. If you do not see your
new device, please refer to the Troubleshooting tips.

You may now log out.

Set Up Serial Port

5

Finish and Log Out

6

Select Monitor to review activity logs of attached MESR321x

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 that the Vlinx Modbus Gateway Manager
program has gathered since current login of the affected
device.

Product Overview

Set Up Hardware

1

Power
10 - 48 VDC

Ethernet RJ45 Port

Male DB9 Port

LEDs

Mode Switch

Terminal Block Port

LEDs

Power

Off Power is not connected.

On Power is connected.

Ready

Off System is in Console Mode.

Blink System is in Normal Mode.

P1

Data

On Serial port is available.

Blink Data present on serial port.

RJ45 Ethernet Port LEDs

Speed

Off 10BaseT connection.

On 100BaseT connection.

Link

On Ethernet connected.

Blink Data present on Ethernet port.

Fiber Ethernet Port LEDs

Link

Off No connection.

On 100BaseT connection.

Power

Link 1

Link

Speed

Ethernet

Link 2

Ready

P1 Data

1. Power the device.

2. Connect the top RJ45 or optical connector to a network
drop using a standard network cable. (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: straight­through for DCE device. Null modem for DTE device.
RS-422/485 with terminal blocks.

Installation & Setup

2

1. Use the 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 on it to launch the installation.

2. To open Vlinx Modbus Gateway Manager, click Star t/

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 congure 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.

Installation & 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. 25 4.102. 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 I P A ddr e s s: 16 9.2 5 4 .10 2 .1,

Subnet Mask: 255.255.0.0, Default Gateway:

169. 254 .102.100.

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.

Note: The Vlinx Modbus Gateway Manager soft ware

contains default parameter values that are common to
most Modbus networks.

1. TCP Settings: “Connect to port” identies 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” identies TCP
port in TCP ser ver 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 specic IP address” and “allow

a range of IP addresses” control which TCP clients can
connect.

Setting Up TCP

4

(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.)

5. Click Login. Password is blank from factory. No
password is necessary to operate the MESR unit. The

Conguration/General page appears.

Ethernet RJ45 Port
Fiber LC MM optical