MBRG-300
Modbus Router/
Gateway
Usermanual
UMMBRG300-1101
MBRG-300
Modbus Router/Gateway: Usermanual
Copyright © 2011 proconX Pty Ltd. All rights reserved.
Document revision history
2011-03-28 Initial Release
No part of this material may be reproduced or transmitted in any form or by any means or used to make any derivative work without
express written consent from the copyright holders.
Modbus is a registered trademark of Schneider Automation Inc. proconX and FieldTalk are trademarks of proconX Pty Ltd. All other
product and brand names mentioned in this document may be trademarks or registered trademarks of their respective owners.
Disclaimer
proconX Pty Ltd makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty
which is detailed in the Terms and Conditions located on the Company’s Website. The Company assumes no responsibility for any errors
which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice,
and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property
of proconX are granted by the Company in connection with the sale of proconX products, expressly or by implication. proconX products
are not authorized for use as critical components in life support devices or systems.
Support & product feedback
We provide an electronic support and feedback system for our proconX products. It can be accessed through the following web link:
http://www.proconx.com/support
Your feedback and comments are always welcome. It helps improving this product.
Contact
For further information about the MBRG-300 product or this document please contact us at:
proconX Pty Ltd
PO Box 791
Sumner QLD 4074
Australia
Website: http://www.proconx.com/mbrg300
Contents
Important user information ........................................................................................ v
Safety Precautions ............................................................................................... v
Document conventions ....................................................................................... vi
1 Introduction ............................................................................................................. 1
Features ............................................................................................................... 2
Quick start checklist ............................................................................................ 2
2 Description .............................................................................................................. 3
LED indicators ..................................................................................................... 3
3 Installation ............................................................................................................... 5
Regulatory notes ................................................................................................. 5
Unpacking, handling and storage ....................................................................... 5
Before connecting anything ................................................................................ 5
DIN rail mounting and removal .......................................................................... 6
Mounting rules .................................................................................................... 6
Powering the MBRG-300 ..................................................................................... 7
Wiring the RS-485/422 interface ......................................................................... 7
Wiring the RS-232 interface ................................................................................ 7
Connecting Ethernet ........................................................................................... 8
4 Ethernet & IP configuration ................................................................................... 11
IP setup using a web browser and a cross-over network cable .......................... 11
IP setup using a terminal program like HyperTerminal ....................................... 12
Temporarily changing the IP settings on your PC .............................................. 13
5 Web browser based management ......................................................................... 15
Connecting to the MBRG-300 ........................................................................... 15
Monitoring and diagnostic ................................................................................ 16
Device status .............................................................................................. 16
Modbus connection status ........................................................................ 16
Finding the firmware version and serial number ........................................ 18
Configuring and commissioning ........................................................................ 18
Configuring Ethernet and IP ...................................................................... 18
Configuring serial line Modbus .................................................................. 19
Remote restarting the device ..................................................................... 20
6 Decommissioning ................................................................................................... 23
Disconnecting .................................................................................................... 23
Disposal ............................................................................................................. 23
A Specifications ........................................................................................................ 25
Dimensions ........................................................................................................ 27
Glossary .................................................................................................................... 29
Index ......................................................................................................................... 31
Figures
2.1 Location of connectors ......................................................................................... 3
5.1 Device management and configuration via the web browser ............................. 15
5.2 Overview page .................................................................................................... 16
5.3 Modbus status page ........................................................................................... 17
5.4 About page ........................................................................................................ 18
UMMBRG300-1101 iii
Tables
5.5 Ethernet and IP settings page ............................................................................ 18
5.6 IP settings changed confirmation ....................................................................... 19
5.7 Modbus settings page ........................................................................................ 19
5.8 Restart device page ............................................................................................ 20
5.9 Restart confirmation page .................................................................................. 20
A.1 Enclosure dimensions ......................................................................................... 27
2.1 LED diagnostic codes ............................................................................................ 4
3.1 Power supply connector pinout ............................................................................ 7
3.2 Modbus RS-232 connector pinout ........................................................................ 8
3.3 Ethernet connector pinout ................................................................................... 8
iv UMMBRG300-1101
Important user information
This manual explains how to install, operate and configure a MBRG-300. This device may
only be used for the applications described in this document.
This manual is to be used with a MBRG-300 with firmware version 1.6.
These instructions are intended for use by trained specialists in electrical installation
and control and automation engineering, who are familiar with the applicable national
standards and safety procedures.
Safety Precautions
ELECTRICAL HAZARD
• This equipment must be installed and serviced only by qualified personnel. Such
work should be performed only after reading this entire set of instructions.
• Before performing visual inspections, tests, or maintenance on this equipment,
disconnect all sources of electric power. Assume that all circuits are live until they
have been completely de-energized, tested, and tagged. Pay particular attention
to the design of the power system. Consider all sources of power, including the
possibility of backfeeding.
• Apply appropriate personal protective equipment and follow safe electrical
practices.
• Turn off all power supplying the equipment in which the MBRG-300 is to be
installed before installing, wiring or removing the MBRG-300.
• Always use a properly rated voltage sensing device to confirm that power is off.
• The successful operation of this equipment depends upon proper handling,
installation, and operation. Neglecting fundamental installation requirements
may lead to personal injury as well as damage to electrical equipment or other
property.
Important user information
Failure to follow these instructions could result in death or serious injury!
UMMBRG300-1101 v
Document conventions
Throughout this manual we use the following symbols and typefaces to make you aware
of safety or other important considerations:
Acronym This typeface is used to introduce acronyms or product
Command This typeface is used to represent commands, prompts, input
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation that, if not avoided, could result in damage to equipment.
Indicates information that is critical for successful application
and understanding of the product.
Provides other helpful user information that does not fall in
above categories.
Provides supplemental user information.
names.
fields and filenames. In the context of programming it is used
for functions, variable names, constants or class names.
Placeholder This typeface is used to represent replacable text. Replaceable
text is a placeholder for data you have to provide, like filenames or command line arguments.
User input This typeface is used to represent data entered by the user
or buttons.
Screen output
Screen output or program listing
vi UMMBRG300-1101
Chapter 1.Introduction
The MBRG-300 is a Modbus/TCP to Modbus RTU gateway.
The gateway features one serial port which can be configured as either RS-232, RS-485
or RS-422 and an Ethernet port. It can be mounted on a DIN rail.
Usage and configuration of the gateway is simple and conveniently performed using a
web browser which connects to the embedded web server.
Introduction
Possible areas of application are:
• PLC connection
• Operator panel interfacing
• HMIs
• SCADA integration
• Remote control & monitoring
• Data logging
UMMBRG300-1101 1
Features
The MBRG-300 gateway provides the following key features:
• Modbus/TCP protocol (Ethernet)
• Modbus RTU protocol (either RS-232, RS-485 or RS-422, software configurable)
• Embedded web server for easy configuration and commissioning using a web browser
• Firmware upgradeable via Ethernet
• DIN rail mountable
• 24 V DC (10-30 V) power supply
• Status LEDs for power, Ethernet link, device status and communication status
Quick start checklist
• Read this set of instructions properly and in its entirety.
• Mount the unit.
• Connect the power. Do not connect yet serial ports.
• Configure the Ethernet communications settings with a web browser (using an
Ethernet crossover cable) or with a terminal program like HyperTerminal (using a null
modem cable)
• Configure the serial line communication settings.
• Configure the operational aspects of the device.
• Wire serial line interfaces.
2 UMMBRG300-1101
Chapter 2.Description
TOP VIEW
BOTTOM VIEW
FRONT VIEW
The power and RS-485/RS-422 terminals are placed on the top side of the unit. The
RS-232 and Ethernet connectors are placed on the bottom side of the unit as shown in
the following illustration:
Description
LED indicators
Figure2.1:Location of connectors
Clear front cover
Serial port 1 RS-232 connector
Serial port 2 RS-232 connector
Ethernet connector
DIN rail clip
Power LED
Ethernet link LED
Device status LED
Communication status LED
Power terminals
Serial port 1 and 2 RS-485 or serial port 1 RS-422 terminals
Four LEDs located at the front panel indicate the status of the device. The LEDs assist
maintenance personnel in quickly identifying wiring or communication errors.
A LED test is exercised at power-up, cycling each LED off, green and then red for
approximately 0.25 seconds. At the same time the power-on self test of the device is
performed.
UMMBRG300-1101 3
The following table outlines the indicator condition and the corresponding status after
the power-on self test has been completed:
LED Function Condition Indication
Power Power
Link Ethernet link
Status1 Device status
Status2
Table 2.1: LED diagnostic codes
Communication status
Off No power applied to the device.
Green Power supply OK
Off No Ethernet link
Green Ethernet link OK
Off The device has an unrecoverable fault; may need replacing.
Flashing green
1 s rate
Green The device is operating in normal condition.
Flashing red
1 s rate
Red
Off No Modbus/TCP connection.
Green Modbus/TCP connection established.
Device operational but needs commissioning due to configuration
missing, incomplete or incorrect.
Device operational but has a fault listed which requires acknowledgment.
The device has an unrecoverable fault; may need replacing. Flashing
sequence and rate of Status2 LED indicates fault class.
4 UMMBRG300-1101
Chapter 3.Installation
Regulatory notes
1. The MBRG-300 is suitable for use in non-hazardous locations only.
2. The MBRG-300 is not authorized for use in life support devices or systems.
3. Wiring and installation must be in accordance with applicable electrical codes in
accordance with the authority having jurisdiction.
4. This is a Class A device and intended for commercial or industrial use. This equipment
may cause radio interference if used in a residential area; in this case it is the
operator’s responsibility to take appropriate measures.
5. The precondition for compliance with EMC limit values is strict adherence to the
guidelines specified in this set of instructions. This applies in particular to the area
of grounding and shielding of cables.
Installation
FCC Notice (USA only)
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
Industry Canada Notice (Canada only)
This Class A digital apparatus complies with Canadian ICES-003.
Unpacking, handling and storage
1. Please read this set of instructions. carefully before fitting it into your system.
2. Keep all original packaging material for future storage or warranty shipments of the
unit.
3. Do not exceed the specified temperatures.
Before connecting anything
1. Before installing or removing the unit or any connector, ensure that the system power
and external supplies have been turned off.
UMMBRG300-1101 5
2. Check the system supply voltage with a multimeter for correct voltage range and
2
1
Click
DIN rail
Slide down
2
1
polarity.
3. Connect the power supply cable and switch on the system power. Check if the Power
LED is lit.
4. Turn off system power.
5. Connect all I/O cables.
6. Once you are certain that all connections have been made properly, restore the
power.
DIN rail mounting and removal
The MBRG-300 gateway is designed to be mounted on a 35 mm DIN rail according to
DIN/EN 50022. The enclosure features a 35 mm profile at the back which snaps into the
DIN rail. No tools are required for mounting. Please observe the rules outlined in the
section called “Mounting rules”.
To mount the unit on a DIN rail, slot the top part of the
MBRG-300 into the upper guide of the rail and lower the
enclosure until the bottom of the red hook clicks into
place.
Mounting rules
The enclosure provides protection against solid objects according to IP20 / NEMAType1
protection rating. When mounting the unit observe the following rules:
• No water splash and water drops
• No aggressive gas, steam or liquids
To remove the MBRG-300 from the DIN rail, use a screw
driver as a lever by inserting it in the small slot of the red
hook and push the red hook downwards. Then remove the
unit from the rail by raising the bottom front edge of the
enclosure.
6 UMMBRG300-1101
• Avoid dusty environments.
V+
V-
1
• Avoid shock or vibration
• Do not exceed the specified operational temperatures and humidity range.
• Mount inside an electrical switchboard or control cabinet.
• Make sure there is sufficient air ventilation and clearance to other devices mounted
next to the unit.
• Observe applicable local regulations like EN60204 / VDE0113.
Powering the MBRG-300
Before connecting power please follow the rules in the section called “Safety Precautions” and the section called “Before connecting anything”.
Installation
Power is supplied via a 3.81 mm 2-pin pluggable terminal block located at the top side
of the mounted unit (refer to Figure2.1, “Location of connectors”). The following table
and picture shows the power terminal socket pinout:
Pin Signal Function
1 V+ Positive voltage supply (10 - 30 V DC)
2 V- Negative voltage supply, DC power return
Table 3.1: Power supply connector pinout
Make sure that the polarity of the supply voltage is correct before connecting any
device to the serial ports! A wrong polarity can cause high currents on the ground
plane between the V- power supply pin and the serial port ground pins, which can
cause damage to the device.
Wiring the RS-485/422 interface
The RS-485/422 port is used for integrating the MBRG-300 into a two-wire or four-wire
Modbus over Serial Line network. The use of either the RS-485 or RS-422 interface must
be configured using the web interface (See the section called “Configuring serial line
Modbus”). The MBRG-300 is a Modbus Master device on this interface.
Wiring the RS-232 interface
The RS-232 port can alternativly be used for serial communication to a Modbus Slave
device instead of RS-485. The use of the RS-232 interface must be configured using the
web interface (See the section called “Configuring serial line Modbus”). The MBRG-300
is a Modbus Master device on this interface.
UMMBRG300-1101 7
The Modbus RS-232 connector is a male 9-pin D-sub type located at the bottom side of
GND
TDX
CTS
DTR
RI
RXD
RTS
1
6
CD
TX+
TX-
RX-
RX+
1
the mounted unit (refer to Figure2.1, “Location of connectors”). It has industry standard
EIA-574 data terminal equipment (DTE) pinout as shown in the following table and
picture:
Pin Signal Function Direction
1 DCD (unused) in
2 RXD Receive data in
3 TXD Transmit data out
4 DTR (unused) out
5 GND Signal ground
6 DSR (unused) in
7 RTS (unused) out
8 CTS (unused) in
9 RI (unused) in
Table 3.2: Modbus RS-232 connector pinout
• Maximum cable length is 15 m (50 ft) or a length equal to a line capacitance of 2500
pF, both at the maximum standard bit rate of 20 kbps. If operating at higher bit rates
the maximum cable length drops to 3 m (10 ft) at a bit rate of 57.6 kbps.
• To assure a high degree of electromagnetic compatibility and surge protection the
RS-232 cable should shielded. The shield shall be connected to an external chassis
ground at the either or both ends, depending on the application.
• The shield must not be connected to the GND pin.
To connect the MBRG-300 to a PC (Personal Computer) or any other device with
data terminal equipment (DTE) pinout you need a null-modem or cross-over cable.
Connecting Ethernet
The following table describes the 10BASE-T Ethernet RJ-45 connector pinout:
Pin Signal Function
1 TX+ Non-inverting transmit signal
2 TX- Inverting transmit signal
3 RX+ Non-inverting receive signal
4 Internal termination network
5 Internal termination network
6 RX- Inverting receive signal
7 Internal termination network
8 Internal termination network
Table 3.3: Ethernet connector pinout
• We recommend to use Category 5 UTP network cable.
8 UMMBRG300-1101
• Maximum cable length is 100 m (3000 ft).
Installation
UMMBRG300-1101 9
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10 UMMBRG300-1101
Chapter 4.Ethernet & IP configuration
Before configuring the MBRG-300, obtain a unique static IP address, subnet mask, and
default gateway address from your network administrator.
The factory default IP address of the MBRG-300 is 169.254.0.10 which is in the Automatic
Private IP Addressing (APIPA) address range.
There are several methods of configuring the unit’s IP address:
1. Removing your PC from your corporate network and using a cross-over network
cable (see the section called “IP setup using a web browser and a cross-over network
cable”).
2. Via the Serial Port 1 and a terminal program like HyperTerminal (see the section called
“IP setup using a terminal program like HyperTerminal”).
3. Leaving your PC connected to your corporate network and temporarily changing the
IP settings on your PC to match the subnet of the MBRG-300 (see the section called
“Temporarily changing the IP settings on your PC”).
Ethernet & IP configuration
In order to connect to the MBRG-300 via TCP/IP, your PC must be on same IP subnet
as the gateway. In most situations this means that the first three numbers of the
IP address have to be identical.
IP setup using a web browser and a cross-over network cable
This method applies only to operating systems like Windows, which support APIPA
(Automatic Private IP Addressing). It also requires your PC to be configured for DHCP. If
your computer is configured with a static IP address, follow the procedure in the section
called “Temporarily changing the IP settings on your PC”.
1. Disconnect your PC from your corporate network. If your computer is configured for
DHCP it should now automatically fall back to use a default IP address from the APIPA
range 169.254.x.x (Windows PCs only).
2. Connect an Ethernet crossover cable from the MBRG-300 to the computer.
3. Start Internet Explorer.
4. In the address box, type 169.254.0.10 and then press Enter.
5. Click Configuration… and then Ethernet & IP in the menu on the left side of
the page.
6. Enter the IP address, subnet mask, and gateway address assigned to your MBRG-300,
then click Save.
7. Reconnect your computer to your corporate network.
UMMBRG300-1101 11
IP setup using a terminal program like HyperTerminal
DIAG MODE
Ver: x.y
S/N: 1234
MAC: 00:50:C7:67:71:97
IP Address: 169.254.0.10
Subnet Mask: 255.255.0.0
Gateway Address: 0.0.0.0
>SETIP
IP Address (169.254.0.10): 10.0.0.100
Subnet Mask (255.255.0.0): 255.255.255.0
Gateway Address (0.0.0.0): 0.0.0.0
RUN MODE
1. Connect a null modem RS-232 cable between your PC and the MBRG-300’s Serial
Port 1.
2. In Windows XP, click Start, point to All Programs, point to Accessories, point
to Communications, and then click HyperTerminal.
3. When HyperTerminal starts, it opens a dialog box and asks for a name for the new
connection. Enter a name (for example, deviceconfig) then click OK.
4. The Connect to dialog opens. Select the COM port you will be using in the Connect
using drop-down list box, then click OK.
5. Select 9600, 8, None, 1, None in the COM Properties dialog, then click OK.
6. HyperTerminal is now connected to the serial line.
7. Keep the space bar pressed in HyperTerminal and power-cycle your device at the
same time.
8. A menu should appear after one or two seconds showing device information, the
current IP configuration and a > prompt.
9. Type SETIP, then press Enter within 10 seconds after the prompt is shown:
10.The device will show current values and prompt for new values for IP address, net
mask and gateway address. Enter the new values and press Enter. A key press must
be received at least every 10 seconds otherwise the device will go back to RUN MODE
and resume normal operation.
11.The gateway will return to the main prompt. Type X and press Enter to leave DIAG
MODE and resume normal operation indicated with RUN MODE.
12 UMMBRG300-1101
Temporarily changing the IP settings on your PC
This method involves manually assigning an IP address to your PC in the same subnet as
the gateway. The default subnet of the gateway is 169.254.0.0/16.
1. Connect the MBRG-300 to your Ethernet network.
2. On a Windows PC, open the Control Panel and double-click on Network
Connections. Right-click on the Network Connection associated with your network
adapter and select Properties:
Ethernet & IP configuration
This will show the Local Area Connection Properties Dialog:
UMMBRG300-1101 13
3. Select the Internet Protocol (TCP/IP) entry and click on Properties to open
the TCP/IP Properties dialog as shown below:
4. Write down your current settings so they can be restored later.
5. Select Use the following IP address and configure a static IP address in
the same subnet as the device, for example 169.254.0.1 and the subnet mask
255.255.0.0. Click OK to save the changes.
6. Start Internet Explorer.
7. In the address box, type 169.254.0.10 and then press Enter.
8. Click Configuration… and then Ethernet & IP in the menu on the left side of
the page.
9. Enter the IP address, subnet mask, and gateway address assigned to your MBRG-300,
then click Save.
10.Restore your computer’s original settings.
14 UMMBRG300-1101
Web browser based management
Chapter 5.Web browser based management
The MBRG-300 incorporates an embedded web server. This allows you to connect to the
device and monitor and configure it using a web browser. Most browsers should work,
provided they support JavaScript. We recommend Internet Explorer 6.0 or higher.
Connecting to the MBRG-300
Once you made sure that your PC is configured to be on the same subnet as the
MBRG-300, start your web browser. In the address box, type the IP address of your
device (169.254.0.10 is the default), and then press Enter. (See Chapter4, Ethernet &
IP configuration)
The web browser will establish communication with the embedded web server and an
overview page similar to the following picture will appear:
Figure5.1:Device management and configuration via the web browser
Gateway IP address
Main menu
Configuration sub-menu
Information area
Use the menu bar shown on the left side to navigate the different pages.
UMMBRG300-1101 15
In order to connect to the MBRG-300 via TCP/IP, your PC must be on same IP subnet
as the gateway. In most situations this means that the first three numbers of the
IP address have to be identical.
Monitoring and diagnostic
The MBRG-300 offers several web pages which allow monitoring of the status of the
different communication networks and the device performance.
Device status
The Overview page shows the principal device status as shown in the following picture:
Figure5.2:Overview page
The value shown in the Device row represents the device status register which keeps
track of run-time faults. All run-time faults are latched and must be reset by the user.
The following faults can be listed here:
OK
The device is fault free.
Watchdog reset
This warning indicates that the device was reset by it’s internal watchdog supervision
circuit.
Brown out reset
This warning indicates that the device was reset by it’s internal supply voltage
monitoring circuit. This fault occurs when the supply voltage drops below the lower
limit.
Device out of memory
This warning indicates that the internal dynamic memory has been exhausted and
due to this a certain function could not be completed.
Device configuration data write failure
This alarm indicates that the configuration data could not be written to the nonvolatile memory. Configuration data changes will be lost once the device is powercycled or reset.
Reset to factory defaults
This alarm indicates that the device' configuration data was reset to factory defaults.
The device requires re-commissioning.
Modbus connection status
The Modbus Status page shows status and statistics about the Modbus traffic. These
values provide valuable information used to troubleshoot Modbus network problems.
This page is automatically updated every 5 seconds.
16 UMMBRG300-1101
Web browser based management
Figure5.3:Modbus status page
This page shows accumulated readings since the MBRG-300 was last activated or
reset. If power to the MBRG-300 is lost, all cumulative values are reset to zero.
The following statistics are maintained:
TCP status
Status of the TCP/IP connection as per TCP finite state machine (refer to RFC 793).
If no client is connected the status indicates LISTEN. If a client is connected, it’s IP
address is shown.
Accumulative connections
A counter that increments each time a client opens a Modbus/TCP connection.
Requests
A counter that increments each time an inbound request message is successfully
received.
Replies
A counter that is incremented each time a reply message is sent back to the master.
This includes exception replies.
CRC errors
A counter that increments each time a message is received that has a CRC that does
not match what is calculated. Typically the result of wiring issues. Messages with CRC
errors are discarded and not replied to.
Invalid frames
A counter that increments each time a malformed Modbus frame is detected.
Malformed frames are for example messages larger than the allowed maximum PDU
size defined in the Modbus standards. This can be caused by non-Modbus traffic on
the network.
Rx time-outs (Modbus serial line)
A counter that increments each time an inter-character time-out occurred during the
reception of an inbound message.
Rx time-outs (Modbus/TCP)
A counter that increments if the master connection has timed out. Subsequently the
connection is terminated by the MBRG-300. A time-out occurs if no Modbus request
is received from a connected client within a 10 second period.
Tx time-outs
Number time-outs occurred when attempting to send a reply message.
The cumulative diagnostic data is reset when the device is power cycled or reset. The
data is also reset by pressing the Clear Counter button.
UMMBRG300-1101 17
Finding the firmware version and serial number
Click on the About menu entry on the menu bar to show the product information as
shown below:
Figure5.4:About page
This product information is important for service and support inquiries. The following
product information is provided:
Product name
The name of the product.
Hardware version
MBRG-300 hardware version.
Firmware version
The firmware version that is installed on the MBRG-300.
Serial number
The serial number of the MBRG-300. The serial number is specific to your device.
Configuring and commissioning
The configuration pages are accessed by clicking on the Configuration… menu entry
on the menu bar which then expands a configuration sub-menu. All configuration
settings are kept in the device' non-volatile memory.
If you make changes to any settings, remember to save each page before changing
to a different page!
Configuring Ethernet and IP
Select the Configuration#Ethernet & IP sub-menu from the menu bar to open
the Ethernet and IP settings which are shown below:
Figure5.5:Ethernet and IP settings page
18 UMMBRG300-1101
Web browser based management
The following Ethernet parameters are shown:
MAC address
The device' unique MAC address. This number is hard coded and cannot be changed.
The following Internet protocol (IP) settings can be entered:
IP address
The IP address assigned to this device.
Subnet mask (also known as indexterm2:[network mask])
If you have a router, enter the subnet mask for the segment to which this device is
attached.
Gateway address
If your network segment has a router, enter its IP address here. Otherwise leave the
address as 0.0.0.0.
Once you click Save the new settings are stored and applied instantly. The new settings
are confirmed with the following page:
Figure5.6:IP settings changed confirmation
Please write down the new IP address so you are able to communicate with the
device in the future!
Configuring serial line Modbus
The Modbus settings for serial line can be configured to match the network configuration
of your Modbus master device. Select the Configuration#Modbus sub-menu from the
menu bar to open the Modbus settings which are shown below:
Figure5.7:Modbus settings page
The following Modbus settings can be entered:
Physical layer
Can be set to two-wire RS-485, RS-422 or RS-232 mode. RS-485 is the default.
Depending on this setting either the D-sub (RS-232) connector or the terminal block
connector (RS-485/422) of the MBRG-300 is utilized. The (RS-485 + RS-422) mode
is a special mode which allows operating one RS-422 device and a RS-485 bus one
the same serial interface.
Transmission mode
Only RTU mode can be selected here.
UMMBRG300-1101 19
Baud rate
9600 and 19200 are the most common baud rates for Modbus. 19200 is the default
setting.
Data bits
Only 8 data bits can be selected here which is a requirement for RTU.
Stop bits
Can be configured to be 1 or 2. The Modbus standard mandates that 2 stop bits are
configured when using no parity.
Parity
Changes parity mode to either none, even or odd. The default parity mode for
Modbus is even parity.
Slave ID for RS-422 node
This setting is only valid for the combined RS-485 + RS-422 mode which allows
operating one RS-422 device and a RS-485 bus one the same serial interface. This
setting determines based on the slave ID whether a Modbus message is transmitted
onto the RS-485 bus or the RS-422 interface. Configure here the slave ID of the RS-422
device.
Once you click Save the new settings are stored and applied instantly. A confirmation
message is shown.
Remote restarting the device
You can perform a remote restart of the device from the web interface. A remote restart
is similar to power cycling the device. Possibly connected clients are disconnected and
communication is interrupted until the device has rebooted.
To perform a remote restart, click on the Configuration sub-menu and then click on
the Restart menu entry. This will open the device restart page as shown below:
Figure5.8:Restart device page
Click on the Restart button to perform a restart of the device. The restart is confirmed
with the following notification:
Figure5.9:Restart confirmation page
20 UMMBRG300-1101
Web browser based management
Please allow a few seconds before continuing working with the device as it has to fully
start-up first, before being able to respond to further web browser requests.
After a remote restart a Watchdog reset alarm is shown on the device' home page.
This is a side-effect of the remote restart procedure and the alarm shall be ignored
and cleared.
UMMBRG300-1101 21
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22 UMMBRG300-1101
Chapter 6.Decommissioning
Before disconnecting the MBRG-300 unit please follow the rules in the section called
“Safety Precautions”.
Disconnecting
1. Ensure that the system power and external supplies have been turned off.
2. Disconnect power supply plug.
3. Disconnect all I/O cables.
4. Remove the MBRG-300 from the DIN rail following the procedure described in the
section called “DIN rail mounting and removal”.
Decommissioning
Disposal
This product must be disposed of at a specialized electronic waste recycling facility.
Do not dispose of in domestic waste.
UMMBRG300-1101 23
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24 UMMBRG300-1101
AppendixA.Specifications
Product name MBRG-300
Interfaces
Ethernet 1
Serial ports 2, software configurable as either 2 x RS-232 or 2 x RS-485 or 1 x RS-232 + 1 x
RS-485 or 1 x RS-422
User interface
LED indicators Power (green), Ethernet link (green), 2 status (bi-color red/green)
Monitoring & configuration Web browser based
Diagnostic
High availability features Watchdog supervision, brown-out detection
Serial Port 1 RS-232 interface
Connector male 9-pin D-sub, DTE, EIA-574 pin-out
Physical layer EIA-232-F
Isolation non-isolated
Signals RXD, TXD, RTS, CTS, DTR, DSR, DCD, RI
Speed 300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps
Protocols Modbus RTU master
Serial Port 1 RS-485/RS-422 interface
Connector 3.81 mm 6-pin pluggable terminal block header
Physical layer EIA-485-A, 2-wire or 4-wire
Isolation non-isolated
Speed 300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps
Max. number of nodes 32
Protocols Modbus RTU master
Serial Port 2 RS-232 interface
Connector male 9-pin D-sub, DTE, EIA-574 pin-out
Physical layer EIA-232-F
Isolation non-isolated
Signals RXD, TXD
Speed 9600 bps
Protocols Modbus RTU master
Serial Port 2 RS-485 interface
Connector 3.81 mm 6-pin pluggable terminal block header
Physical layer EIA-485-A, 2-wire
Isolation non-isolated
Speed 300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps
Max. number of nodes 32
Protocols Modbus RTU master
Ethernet port
Connector 8-pin RJ-45 socket for Cat 5 UTP
Physical & Data Link Layer Layer IEEE 802.3i 10BASE-T
Isolation 1.5 kV galvanic
Specifications
UMMBRG300-1101 25
Speed 10 Mbit/s
Max. cable length 100 m (328 ft)
Ethernet frame types 802.3
Protocols Modbus/TCP slave, HTTP, IP, TCP, ARP
Concurrent connections 4 Modbus/TCP slave, 2 HTTP
Power supply
Connector 3.81 mm 2-pin pluggable terminal block header
Voltage 10-30 V DC
Current 30 mA typical @ 24 V DC
Intrinsic consumption 750 mW
Electromagnetic compatibility
Emissions (radiated and conducted) AS/NZS CISPR 22 / EN 55022 (Class A)
Immunity EN 55024
Electrostatic discharge EN 61000-4-2
Radiated RF EN 61000-4-3
Fast transients EN 61000-4-4
Conducted RF EN 61000-4-6
Enclosure
Material Self-extinguishing PC/ABS blend (UL 94-V0)
Mounting 35 mm DIN rail (EN 60715)
Classification / Type rating IP 20 / NEMA Type 1
Cooling Convection
Environmental
Operating temperature 0 to 60 °C / 32 to 140 °F
Storage temperature -25 to 85 °C / -13 to 185 °F
Humidity rating 10 to 95% relative humidity, non condensing
Operating ambience Free from corrosive gas, minimal dust
Physical
Dimensions 101 x 22.5 x 120 mm / 3.98 x 0.886 x 4.72 in
Weight 0.12 kg / 0.265 lb
Compliance
Australia C-Tick
Europe CE, RoHS
USA FCC Part 15 (Class A)
Canada ICES-003 (Class A)
26 UMMBRG300-1101
Dimensions
101.0 mm
120.0 mm
3.98 in
4.72 in
0.89 in
22.5 mm
101.0 mm
3.98 in
Specifications
FigureA.1:Enclosure dimensions
UMMBRG300-1101 27
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28 UMMBRG300-1101
Glossary
Glossary
EMI
Electromagnetic interference
ESD
Electrostatic discharge. ESD can damage
electronic equipment.
10BASE-T
10 Mbit/s twisted pair Ethernet standard.
Standardized in IEEE 802.3i
APIPA
Automatic Private IP Addressing
Class A
Class A equipment is that used in
commercial or light industrial environments.
DCE
Data communications equipment. DTE and
DCE devices have different pinouts for
RS-232 connectors. A Modem for example is
a DCE.
DIN rail
35 mm wide mounting bracket standardized
in DIN/EN 50022.
DTE
Data terminal equipment. DTE and DCE
devices have different pinouts for RS-232
connectors. A PC for example is a DTE.
Ethernet
The standard for local area networks
developed jointly by Digital Equipment
Corp., Xerox, and Intel. Ethernet is used as
the underlying transport vehicle by several
upper-level protocols, including TCP/IP.
Gateway
A network device that passes data between
different networks or fieldbusses.
Gateway address
The IP address of the gateway or router used
to access the Internet from the local are
network.
IEEE
Institute of Electrical and Electronics
Engineers
IP
Ingress Protection Rating standardized in
IEC 60529. Standard for various grades of
electrical enclosures.
EIA-232
Standard for serial transmission of data
between two devices, also known as RS-232
and V.24.
EIA-422
ANSI/TIA/EIA-422 standard for serial
transmission of data between two devices,
also known as RS-422 and V.11.
EIA-485
ANSI/TIA/EIA-485 standard for serial
transmission of data between multiple
devices, also known as RS-485.
EIA-574
Standard for the pinout of serial D-sub
connectors.
EMC
Electromagnetic compatibility
IP address
A numeric address used by computer hosts
to transmit and receive information over the
Internet.
ISO
International Standards Organisation
MAC address
Every piece of Ethernet hardware has a
unique number assigned to it called it’s MAC
address. MAC addresses are administered
and assigned by the IEEE organization.
Modbus
Fieldbus protocol used in the process
automation industry. It uses a master
and slave structure. Originally developed
by Modicon, now part of Schneider
Automation.
UMMBRG300-1101 29
NEMA
National Electrical Manufacturers
Association. NEMA defines standards for
various grades of electrical enclosures.
Node
A communications device on the network.
PC/ABS
Polycarbonate-ABS. Widely used
thermoplastic material.
PLC
Programmable Logic Controller
RS-232
See EIA-232.
RS-422
See EIA-422.
RS-485
See EIA-485.
Subnet mask
A numeric address used in conjunction with
an IP address to segment network traffic;
used to restrict transmissions to certain
subnets.
Switch
A device that facilitates transmissions
between nodes in a star-formed network.
TCP/IP
Transport Control Protocol/Internet
Protocol. Connection-orientated transfer
protocol.
Telnet
A network protocol (RFC 854) for character
based terminal access to remote machines.
UL 94
Plastics flammability standard released by
Underwriters Laboratories of the USA.
30 UMMBRG300-1101
Index
A
About, 18
Accumulative connections, 17
APIPA, 11
B
Baud rate, 20
Brown out reset, 16
C
cable
RS-232, 8
cable length
Ethernet length, 9
RS-232, 8
Class A, 5
connector
Ethernet, 8
location, 3
power, 7
RS-232, 8
CRC errors, 17
cross-over network cable, 11
Index
settings, 19
F
faults, 16
features, 2
Firmware version, 18
G
Gateway address, 19
grounding, 5
H
Hardware version, 18
HyperTerminal, 12
I
Invalid frames, 17
IP
settings, 11, 19
IP address, 19
J
JavaScript, 15
L
LED, 3, 3
D
Data bits, 20
default IP address, 11
Device configuration data write failure, 16
Device out of memory, 16
device status register, 16
DIN rail
mounting, 6
removal, 6
Disconnecting, 23
Disposal, 23
E
electronic waste, 23
embedded web server, 15
EMC, 5
enclosure
DIN rail clip, 3
front cover, 3
mounting, 6
red hook, 6
removal, 6
Ethernet, 8, 19
M
MAC address, 19
Modbus
settings, 19
status, 17
mounting, 6
rules, 6
P
Parity, 20
Physical layer, 19
pinout
Ethernet, 8
power, 7
RS-232, 8
power, 7
Product name, 18
R
recycling, 23
remote restart, 20
removal, 6
Replies, 17
UMMBRG300-1101 31
Requests, 17
Reset to factory defaults, 16
restart, 20
RJ-45, 8
RS-232, 8
run-time faults, 16
Rx time-outs, 17
S
Serial number, 18
settings
Ethernet, 19
IP, 11, 19
Modbus, 19
shield, 8
shielding, 5
shock, 7
Slave ID for RS-422 node, 20
Specifications, 25
Stop bits, 20
storage, 5
Subnet mask, 19
supply voltage, 7
T
TCP status, 17
temperature
operating, 7
terminal program, 12
Transmission mode, 19
Tx time-outs, 17
U
Unpacking, 5
V
ventilation, 7
vibration, 7
W
Watchdog reset, 16
Watchdog reset alarm, 21
32 UMMBRG300-1101
Notes
Notes
UMMBRG300-1101 33
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