Weidmuller SL-MOD-GW User manual
Weidmuller SL-MOD-GW is an industrial-grade Modbus/TCP gateway designed to seamlessly integrate Modbus RTU/ASCII devices into an Ethernet network. It enables transparent data exchange between Modbus serial devices and Modbus TCP clients, making it easy to monitor and control your devices from a remote location or SCADA system. The SL-MOD-GW supports up to 5 simultaneous Modbus TCP client connections.
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SL-MOD-GW
Modbus/TCP Gateway
User manual
SL-MOD-GW
Modbus/TCP Gateway: User manual
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.
Weidmller is a registered trademark of Weidmller Interface GmbH & Co. KG. Modbus is a registered trademark of Schneider Automation
Inc. All other product and brand names mentioned in this document may be trademarks or registered trademarks of their respective owners.
Contents
Figures
UMSLMODGW-1006 iii
Tables
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Important user information
This manual explains how to install, operate and configure a SL-MOD-GW. This device may only be used for the applications described in this document.
This manual is to be used with a SL-MOD-GW 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 SL-MOD-GW is to be installed before installing, wiring or removing the SL-MOD-GW.
• 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.
Failure to follow these instructions could result in death or serious injury!
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Document conventions
Throughout this manual we use the following symbols and typefaces to make you aware of safety or other important considerations:
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.
Acronym
Command
Placeholder
User input
This typeface is used to introduce acronyms or product names.
This typeface is used to represent commands, prompts, input fields and filenames. In the context of programming it is used for functions, variable names, constants or class names.
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.
This typeface is used to represent data entered by the user or buttons.
vi UMSLMODGW-1006
1. Introduction
The SL-MOD-GW 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.
Possible areas of application are:
• PLC connection
• Operator panel interfacing
• HMIs
• SCADA integration
• Remote control & monitoring
• Data logging
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2
1.1 Features
The SL-MOD-GW 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
1.2 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.
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2. Description
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:
TOP VIEW
BOTTOM VIEW
FRONT VIEW
Illustration 2.1: Location of connectors
Clear front cover
RS-232 connector
Ethernet connector
DIN rail clip
Power LED
Ethernet link LED
Device status LED
Communication status LED
Power terminals
RS-485/RS-422 terminals
2.1 LED indicators
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.
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The following table outlines the indicator condition and the corresponding status after the power-on self test has been completed:
LED
Power
Link
Status1
Status2
Function
Power
Ethernet link
Device status
Communication status
Condition
Off
Green
Off
Green
Off
Flashing green
1 s rate
Green
Flashing red
1 s rate
Red
Off
Green
Table 2.1: LED diagnostic codes
Indication
No power applied to the device.
Power supply OK
No Ethernet link
Ethernet link OK
The device has an unrecoverable fault; may need replacing.
Device operational but needs commissioning due to configuration missing, incomplete or incorrect.
The device is operating in normal condition.
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.
No Modbus/TCP connection.
Modbus/TCP connection established.
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3. Installation
3.1 Regulatory notes
1. The SL-MOD-GW is suitable for use in non-hazardous locations only.
2. The SL-MOD-GW 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.
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.
3.2 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.
3.3 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.
2. Check the system supply voltage with a multimeter for correct voltage range and 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.
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6. Once you are certain that all connections have been made properly, restore the power.
3.4 DIN rail mounting and removal
The SL-MOD-GW 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 Section 3.5, “Mounting rules”.
1
To mount the unit on a DIN rail, slot the top part of the
SL-MOD-GW into the upper guide of the rail and lower the enclosure until the bottom of the red hook clicks into place.
DIN rail
Click 2
To remove the SL-MOD-GW 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.
1
Slide down 2
6
3.5 Mounting rules
The enclosure provides protection against solid objects according to IP 20 / NEMA Type 1 protection rating.
When mounting the unit observe the following rules:
• No water splash and water drops
• No aggressive gas, steam or liquids
• Avoid dusty environments.
• 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.
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3.6 Powering the SL-MOD-GW
Before connecting power please follow the rules in the section called “Safety Precautions” and
Section 3.3, “Before connecting anything”.
Power is supplied via a 3.81 mm 2-pin pluggable terminal block located at the top side of the mounted unit
pinout:
1
Pin
1
2
Signal Function
V+
V-
Positive voltage supply (10 - 30 V DC)
Negative voltage supply, DC power return
Table 3.1: Power supply connector pinout
Caution
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.
3.7 Wiring the RS-485/422 interface
The RS-485/422 port is used for integrating the SL-MOD-GW 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
interface.
The RS-485 and RS-422 signals are located at the 3.81 mm 6-pin pluggable terminal block on the top side of the
1
1
RS-485
RS-422
Pin
6
7
8
3
4
5
RS-485 signal
GND
D+
D-
Table 3.2: RS-485/RS-422 connector pinout
RS-422 signal
GND
TX+
TX-
GND
RX+
RX-
Description
Modbus Common
Modbus D1 or TXD1
Modbus D0 or TXD0
Modbus Common
Modbus RXD0
Modbus RXD1
• Line termination is required and is typically done with a 120 Ohm 1/4 W resistor. For RS-485 operation the bus must be terminated at both ends. For RS-422 operation a termination resistor must be inserted between the RX+/RX- signals.
• Maximum number of RS-485 nodes without repeater is 32.
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8
• Stub connections off the main line should be avoided if possible or at least be kept as short as possible. Stub connections must not have terminating resistors.
• Maximum cable length to 1200 m (4000 ft).
• To assure a high degree of electromagnetic compatibility and surge protection the cable should be twisted pairs and shielded. An additional cable conductor or pair may be used for the GND reference.
Caution
Do not connect the cable shield to the GND pins! Use an external chassis ground connection to terminate the shield.
3.8 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 Modbus RS-232 connector is a male 9-pin D-sub type located at the bottom side of the mounted unit (refer
as shown in the following table and picture:
1
6
5
6
3
4
Pin
1
2
7
8
9
Table 3.3: Modbus RS-232 connector pinout
Signal Function
DCD (unused)
RXD Receive data
TXD
DTR
GND
DSR
Transmit data
(unused)
Signal ground
(unused)
RTS
CTS
RI
(unused)
(unused)
(unused)
Direction in in out out in out in in
• 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.
Note
To connect the SL-MOD-GW to a PC (Personal Computer) or any other device with data terminal equipment (DTE) pinout you need a null-modem or cross-over cable.
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3.9 Connecting Ethernet
The following table describes the 10BASE-T Ethernet RJ-45 connector pinout:
1
6
7
4
5
8
Pin Signal Function
1 TX+ Non-inverting transmit signal
2
3
TX-
RX+
Inverting transmit signal
Non-inverting receive signal
Internal termination network
Internal termination network
RXInverting receive signal
Internal termination network
Internal termination network
Table 3.4: Ethernet connector pinout
• We recommend to use Category 5 UTP network cable.
• Maximum cable length is 100 m (3000 ft).
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4. Ethernet & IP configuration
Before configuring the SL-MOD-GW, obtain a unique static IP address, subnet mask, and default gateway address from your network administrator.
The factory default IP address of the SL-MOD-GW is 192.168.1.130.
There are several methods of configuring the unit’s IP address:
2. Leaving your PC connected to your corporate network and temporarily changing the IP settings on your
Note
In order to connect to the SL-MOD-GW 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.
4.1 IP setup using a terminal program like HyperTerminal
1. Connect a null modem RS-232 cable between your PC and the SL-MOD-GW'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.
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9. Type SETIP, then press Enter within 10 seconds after the prompt is shown:
DIAG MODE
Ver: x.y
S/N: 1234
MAC: 00:50:C7:67:71:97
IP Address: 192.168.1.130
>SETIP
IP Address (192.168.1.130): 10.0.0.100
Subnet Mask (255.255.255.0): 255.255.255.0
Gateway Address (0.0.0.0): 0.0.0.0
RUN MODE
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.
4.2 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 192.168.1.0/8.
1. Connect the SL-MOD-GW 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:
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This will show the Local Area Connection Properties Dialog:
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 192.168.1.1 and the subnet mask 255.255.255.0. Click OK to save the changes.
6. Start Internet Explorer.
7. In the address box, type 192.168.1.130 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 SL-MOD-GW, then click Save.
10.Restore your computer’s original settings.
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5. Web browser based management
The SL-MOD-GW 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.
5.1 Connecting to the SL-MOD-GW
Once you made sure that your PC is configured to be on the same subnet as the SL-MOD-GW, start your web browser. In the address box, type the IP address of your device (192.168.1.130 is the default), and then press
Enter. (See Chapter 4, 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:
Illustration 5.1: Device management and configuration via the web browser
Gateway IP address
Main menu
Configuration sub-menu
Information area
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Use the menu bar shown on the left side to navigate the different pages.
Note
In order to connect to the SL-MOD-GW 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.
5.2 Monitoring and diagnostic
The SL-MOD-GW offers several web pages which allow monitoring of the status of the different communication networks and the device performance.
5.2.1 Device status
The Overview page shows the principal device status as shown in the following picture:
Illustration 5.2: 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 non-volatile memory.
Configuration data changes will be lost once the device is power-cycled or reset.
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Reset to factory defaults
This alarm indicates that the device' configuration data was reset to factory defaults. The device requires re-commissioning.
5.2.2 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.
Illustration 5.3: Modbus status page
Note
This page shows accumulated readings since the SL-MOD-GW was last activated or reset.
If power to the SL-MOD-GW 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.
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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 SL-MOD-GW. 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.
5.2.3 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:
Illustration 5.4: 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
SL-MOD-GW hardware version.
Firmware version
The firmware version that is installed on the SL-MOD-GW.
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Serial number
The serial number of the SL-MOD-GW. The serial number is specific to your device.
5.3 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.
Note
If you make changes to any settings, remember to save each page before changing to a different page!
5.3.1 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:
Illustration 5.5: Ethernet and IP settings page
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.
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Once you click Save the new settings are stored and applied instantly. The new settings are confirmed with the following page:
Illustration 5.6: IP settings changed confirmation
Important
Please write down the new IP address so you are able to communicate with the device in the future!
5.3.2 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:
Illustration 5.7: 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 SL-MOD-GW 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.
Baud rate
9600 and 19200 are the most common baud rates for Modbus. 19200 is the default setting.
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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.
5.3.3 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:
Illustration 5.8: Restart device page
Click on the Restart button to perform a restart of the device. The restart is confirmed with the following notification:
Illustration 5.9: Restart confirmation page
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.
Note
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.
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6. Decommissioning
Before disconnecting the unit please follow the rules in the section called “Safety Precautions”.
6.1 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 SL-MOD-GW from the DIN rail following the procedure described in Section 3.4,
“DIN rail mounting and removal”.
6.2 Disposal
This product must be disposed of at a specialized electronic waste recycling facility. Do not dispose of in domestic waste.
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Appendix A. Specifications
SL-MOD-GW Modbus/TCP Gateway
Interfaces
Ethernet
Serial ports
1
1, software configurable as either 1 x RS-232 or 1 x RS-485 or 1 x
RS-422
User interface
LED indicators
Monitoring & configuration
Diagnostic
High availability features
Serial Port 1 RS-232 interface
Connector
Physical layer
Isolation
Signals
Speed
Protocols
Serial Port 1 RS-485/RS-422 interface
Connector
Physical layer
Isolation
Speed
Max. number of nodes
Protocols
Ethernet port
Connector
Physical & Data Link Layer Layer
Isolation
Speed
Max. cable length
Ethernet frame types
Protocols
Concurrent connections
Power supply
Connector
Voltage
Current
Intrinsic consumption
Electromagnetic compatibility
Power (green), Ethernet link (green), 2 status (bi-color red/green)
Web browser based
Watchdog supervision, brown-out detection male 9-pin D-sub, DTE, EIA-574 pin-out
EIA-232-F non-isolated
RXD, TXD, RTS, CTS, DTR, DSR, DCD, RI
300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps
Modbus RTU master
3.81 mm 6-pin pluggable terminal block header
EIA-485-A, 2-wire or 4-wire non-isolated
300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps
32
Modbus RTU master
8-pin RJ-45 socket for Cat 5 UTP
IEEE 802.3i 10BASE-T
1.5 kV galvanic
10 Mbit/s
100 m (328 ft)
802.3
Modbus/TCP slave, HTTP, IP, TCP, ARP
4 Modbus/TCP slave, 2 HTTP
3.81 mm 2-pin pluggable terminal block header
10-30 V DC
30 mA typical @ 24 V DC
750 mW
UMSLMODGW-1006 25
Emissions (radiated and conducted) AS/NZS CISPR 22 / EN 55022 (Class A)
Immunity EN 55024
Electrostatic discharge
Radiated RF
EN 61000-4-2
EN 61000-4-3
Fast transients
Conducted RF
Enclosure
Material
EN 61000-4-4
EN 61000-4-6
Mounting
Classification / Type rating
Cooling
Environmental
Operating temperature
Storage temperature
Humidity rating
Self-extinguishing PC/ABS blend (UL 94-V0)
35 mm DIN rail (EN 60715)
IP 20 / NEMA Type 1
Convection
0 to 60 °C / 32 to 140 °F
-25 to 85 °C / -13 to 185 °F
10 to 95% relative humidity, non condensing
Free from corrosive gas, minimal dust Operating ambience
Physical
Dimensions
Weight
101 x 22.5 x 120 mm / 3.98 x 0.886 x 4.72 in
0.12 kg / 0.265 lb
Compliance
Australia
Europe
USA
Canada
C-Tick
CE, RoHS
FCC Part 15 (Class A)
ICES-003 (Class A)
26 UMSLMODGW-1006
A.1 Dimensions
Illustration A.1: Enclosure dimensions
120.0 mm
4.72 in
22.5 mm
0.89 in
UMSLMODGW-1006 27
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Glossary
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.
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
EMI
Electromagnetic interference
ESD
Electrostatic discharge. ESD can damage electronic equipment.
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.
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.
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.
UMSLMODGW-1006 29
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.
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Index
A
B
C cable
cable length
connector
D
Device configuration data write failure, 16
Device out of memory, 16 device status register, 16
DIN rail
E
enclosure
DIN rail clip, 3 front cover, 3
mounting, 6 red hook, 6 removal, 6
UMSLMODGW-1006
F
G
H
I
IP
J
L
M
Modbus
N nodes maximum
P
pinout
R
31
S
settings
T
temperature
termination
U
V
W
32 UMSLMODGW-1006
References
Name:
Company:
Street Address:
Postcode:
Suburb:
Tel:
Fax:
Version:
Software-Version:
Model:
Description:
Document Type:
IP-Address:
WebSite:
Warenzeichen1:
Warenzeichen2:
Weidmller
Weidmller Australia Pty Ltd
43 Huntingwood Drive,
2148
Huntingwood, NSW
+61 2 9671 9999
+61 2 9671 9900
1.0, October 2010
1.6
SL-MOD-GW
Modbus/TCP Gateway
User manual
192.168.1.130
www.weidmuller.com.au
Ethernet is a trademark of Xerox Corporation.
Weidmller® is a registered trademark of Weidmller
Interface GmbH & Co. KG
UMSLMODGW-1006 33
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