Related software tools are available in the folder software tools under
technical support on the Westermo website.
Legal information
The contents of this document are provided “as is”. Except as required by applicable
law, no warranties of any kind, either express or implied, including, but not limited to,
the implied warranties of merchantability and fitness for a particular purpose, are made
in relation to the accuracy and reliability or contents of this document. Westermo
reserves the right to revise this document or withdraw it at any time without prior
notice.
Under no circumstances shall Westermo be responsible for any loss of data or income
or any special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at the following Internet address:
http://www.westermo.com
2
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Safety
!
!
Before using this unit:
Read this manual completely and gather all information on the unit. Make sure
that you understand it fully. Check that your application does not exceed the safe
operating specifications for this unit.
Hazardous voltage may occur within this unit when connected to power supply or
TNV circuits.
Prevent access to hazardous voltage by disconnecting the unit from power supply
and all other electrical connections.
Prevent damage to internal electronics from electrostatic discharges (ESD) by
discharging your body to a grounding point (e.g. use of wrist strap).
Before installation:
This unit should only be installed by qualified personnel.
This unit should be built-in to an apparatus cabinet, or similar, where access is
restricted to service personnel only.
The power supply wiring must be sufficiently fused, and if necessary it must be
possible to disconnect manually from the power supply. Ensure compliance to
national installation regulations.
Branch circuit protection (fuse) is required for this unit with rating not exceeding
20 A.
This unit uses convection cooling. To avoid obstructing the airflow around the
unit, follow the spacing recommendations (see Installation section).
Care recommendations
Follow the care recommendations below to maintain full operation of unit and to fulfil
the warranty obligations.
This unit must not be operating with removed covers or lids.
Do not attempt to disassemble the unit. There are no user serviceable parts inside.
Do not drop, knock or shake the unit, rough handling above the specification may cause
damage to internal circuit boards.
Do not use harsh chemicals, cleaning solvents or strong detergents to clean the unit.
Do not paint the unit. Paint can clog the unit and prevent proper operation.
Do not expose the unit to any kind of liquids (rain, beverages, etc). The unit is not
waterproof. Keep the unit within the specified humidity levels.
Do not use or store the unit in dusty, dirty areas, connectors as well as other mechanical
part may be damaged.
If the unit is not working properly, contact the place of purchase, nearest Westermo
distributor office or Westermo Tech support.
Maintenance
No maintenance is required, as long as the unit is used as intended within the specified
conditions.
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ATEX and IECEx Information (Applicable for EDW-120 Ex only)
General
This unit is intended for use in Zone 2 hazardous location only.
Marking
Baseefa 14ATEX0294X
II 3 G
Ex nA IIC T4 Gc
IECEx BAS 14.0137X
SPECIAL CONDITION
WARNING – DO NOT SEPARATE WHEN ENERGIZED
Indicate that this unit complies with relevant European standards that
are
harmonised with the 94/9/EC Directive (ATEX).
II
3
G
ExIndicates that this unit is in conformity with relevant European Ex standard(s).
nA
IICGas group, a typical gas i hydrogen.
T4
Gc
SPECIAL
CONDITION
Equipment group II.
This unit can be installed in all places with an explosive gas atmosphere other
than mines susceptible to firedamp
Equipment category 3.
A category is the classification according to the required level of protection.
This unit ensures the requisite level of protection during normal operation and
is intended for use in areas in which explosive atmosphere caused by gases,
vapours, mists, or dust mixtures are unlikely to occure or, if they do occure, are
likely to do so only infrequently and for a short periode only.
Indicates protection concerning explosive atmospheres caused by gases, vapours
or mists (G).
Type of protection used.
This unit is a non-sparking device "nA" which is constructed to minimize the
risk of occurence of arcs or sparks capable of creating an ignition hazard during
conditions of normal operation.
Temperature class T4 (T4 = 135°C).
This unit is classified in accordance with its maximum surface temperature
(external and internal).
Equipment protection level Gc (EPL Gc).
Equipment for explosive gas atmospheres, having a "enhanced" level of
protection, which is not a source of ignition in normal operation and which may
have some additional protection to ensure that it remains inactive as an ignition
source in the case of regular expected occurences. EPL Gc are analogous to the
ATEX Categories (Category 3 G = EPL Gc).
This unit has a special condition of use.
The special conditon for safe use contains safety related information that is
necesarry for the correct installation and safe use.
4
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Ratings
Power 12 – 48 VDC; 200 mA
Ambient temperature –25ºC ≤ Ta ≤ +70ºC
Ingress protection (IP)IP21
Maximum surface temperatur 135ºC (temperature class T4)
Safety Control Drawing
Degree of protectionIP 21
Ambient temperature–25°C to +70°C
Installation spacing
1234
1234
Minimum 25 mm above / below
Minimum 10 mm left / right
Galvanically isolated via signal transformer and capacitively
isolated to signal ground through a 3 kV 470 pF capacitor.
See user manual for proven transient protection.
Position DescriptonInput /Output values
1Not connected (DCD)
2In / Received Data (RD)
3Out / Transmitted Data (TD)
4Out / Data Terminal Ready (DTR)
5– / Signal Ground (SG)
6In / Data Set Ready (DSR)
7Out / Request To Send (RTS)
8In / Clear To Send (CTS)
9Not connected (RI)
U = ± 1 V (4μV/s)
I = ± 20 mA
Data rate:
10/100 Mbit/s
U
= ± 12 Vpk
max
I
= ± 60 mA
max
Data rate:
0.3 – 115.2 kbit/s
6616-2211
PositionDescriptonInput values
1In / Common
2In / +Voltage A
3In / +Voltage B
4In / Common
See section Type tests and environmental conditions in this
user manual for proven transient protection.
U
= 10 – 60 VDC
min/max
I
= 300 mA max
max
P
= 3 W
max
5
Page 6
SPECIAL CONDITION FOR SAFE USE
Ambient temperature:
This unit is designed for use in extreme ambient temperature conditions as follows:
–25ºC ≤ Ta ≤ +70ºC
Installation in an apparatus cabinet:
The equipment must be installed in an area of not more than pollution degree 2 in accordance with
IEC 60664-1, and in an enclosure that provides a minimum degree of pretection of at least IP54 and
complies with the relevant requirements of EN 60079-0 and EN 60079-15.
Secureness of energisation:
External connections to the equipment must not be inserted or removed unless either the area in
which the equipment is installed is known to be non-hazardous, or the circuits connected have been
de-energised.
Resistance to impact:
This unit requires installation in an apparatus cabinet where adequate resistance to impact is
provided by the apparatus cabinet. See "Installation in an apparatus cabinet" above for requirements
on the external apparatus cabinet.
Resistance to light:
This unit requires installation in an apparatus cabinet where it is protected from light (for example
daylight or light from luminaires). See "Installation in an apparatus cabinet" above for requirements
on the external apparatus cabinet.
Secureness of plugs:
When this unit is installed in explosive atmospheres, all connectors must be mechanically secured to
prevent loosening by the use of cable ties or similar.
Conductor temperature:
When this unit is installed in locations with high ambient temperature, special precautions shall be
taken upon the choice of external conductors and the temperature rating of the conductor(s).
Directive 94/9/EC alongside with other directives:
Directive 2004/108/EC (EMC) applies and to assure a safe performance of this unit under the scope
of Directive 94/9/EC, refer to the electromagnetic immunity level specified under "Type tests and
environmental conditions" in this manual.
Standards and date of compliance
ATEX: EN 60079-0: 2012
EN 60079-15: 2012
IECEx: IEC 60079-0: 2011 EDITION 6
IEC 60079-15: 2010 EDITION 4
6
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Agency approvals and standards compliance
TypeApproval / Compliance
EMC
EN 50121-4, Railway signalling and telecommunications apparatus
EN 55022, Emission IT equipment
EN 55024, Immunity IT equipment
EN 61000-6-1, Immunity for residential, commercial and light-industrial environments
EN 61000-6-2, Immunity industrial environments
EN 61000-6-4, Emission industrial environments
IEC 62236-4, Railway signalling and telecommunications apparatus
Safety
ATEX** EN 60079-0 and EN 60079-15
IECEx**IEC 60079-0 and IEC 60079-15
* Applicable for EDW-120 only
** Applicable for EDW-120 Ex only
UL/CSA/IEC/EN 60950-1, IT equipment*
EN 60950-1, IT equipment**
FCC Part 15.105
Notice:
EN 55022 Notice: Warning
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.
This is a class A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate
measures.
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Org.nr/
1
1
th
Declaration of Conformity, EDW-120 / EDW-120 EX
Westermo Teleindustri AB
Declaration of conformity
The manufacturer Westermo Teleindustri AB
Herewith declares that the product(s)
Type of product Model Art no
Ethernet to serial adapter EDW-100 3616-0020
is in conformity with the following EC directive(s).
No Short name
2004/108/EC Electromagnetic Compatibility (EMC)
94/9/EC 1 Equipment Explosive Atmospheres (ATEX)
2011/65/EU
References of standards applied for this EC declaration of conformity.
No Title Issue
EN 61000-6-1
EN 61000-6-2
EN 61000-6-4 Electromagnetic compatibility – Emission for industrial environments 2007
EN 55022 Information technology equipment - Emission
EN 55024
EN 50121-4 Railway applications - Electromagnetic compatibility
EN 50581 Technical documentation for the assessment of electrical and electronic
EN 60079-0
EN 60079-15
The last two digits of the year in which the CE marking was affixed: 14
SE-640 40 Stora Sundby, Sweden
EDW-100 EX 3616-5020
EDW-120 3616-0010
EDW-120 EX 3616-5010
Restriction of the use of certain hazardous substances in electrical and electronic
equipment (RoHS)
Electromagnetic compatibility – Immunity for residential environments
Electromagnetic compatibility – Immunity for industrial environments
Information technology equipment
Emission and immunity of the signalling and telecommunications apparatus
products with respect to the restriction of hazardous substances
Explosive atmospheres
Equipment – General requirements
Electrical apparatus for explosive gas atmospheres –
Construction, test and marking of type of protection “n” electrical apparatus
The EDW-120 is an Industrial Ethernet to serial adapter. The serial interface has two
parallel RS-232 ports. The Ethernet interface is 10/100BASE-T and supports the
following networking protocols: TCP, UDP, ICMP, IGMP, HTTP, ARP.
Two EDW-120 can be used to provide a serial point to point link over an Ethernet
network using either UDP or TCP. When using TCP the EDW-120 can be configured
as client or server.
Serial
Device
Configured
as UDP- or
TCP-server
Network
Configured
as UDP- or
TCP-client
Serial
Device
Each unit passes data from
its serial interface to the
serial interface of the other
unit.
This enables long distance
serial communication using
pre-existing networks.
Serial
Master
COM3
10
COM4
Network
COM5
Network
Broadcast
Multicast
Network Interface
COM255
Serial
Slave
Serial
Slave
Serial
Slave
Application software
Data to / from COM3
Data to / from COM4
Data to / from COM5
Data to / from COM255
EDW-120 can also provide a remote serial interface for
a computer connected through a TCP/IP network using
a Virtual IP software.
A COM port redirector or customer written software
can be used to create virtual COM ports. This software
will redirect data, originally sent to a local COM port, to
the remote serial interface of the EDW-120. No changes
are required on the computer application software.
Together with the unit Virtual IP is delivered, this software
enables connection of 255 COM ports to virtual IP
addresses.
When EDW-120 is used
with the UDP protocol it
is also possible to
communicate one to many
(e.g. master to multiple
slaves), by using a broadcast
address or multicast
addressing
COM port
redirector software
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On the network side the EDW-120 has two serial server applications implemented at
each RS-232 port. The servers listen at different local TCP ports. Each serial server
application allows remote clients to connect. When a connection is established any
data sent to the server are transmitted at the corresponding serial interface. CH1 or
CH2. Vice versa data received at CH1 or CH2 are packed into a frame and sent to the
remote client. The serial channels are possible to configure individually (e.g. individual
packing algorithm and data format).
Controller 1
(remote client 1)
CH 1
TCP/IP
Communicating
with controller 1
Controller 2
(remote client 2)
CH 2
Communicating
with controller 2
It is also possible to direct the two serial servers to the same serial channel, useful for
redundant SCADA.
Primary SCADA
controller 1
Primary
SCADA
controller 2
Secundary SCADA
controller 1
Secundary SCADA
controller 2
CH 1
TCP/IP
CH 2
Communicating
with controller 1
Communicating
with controller 2
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For more information on applications and technical data visit www.westermo.com.
The Web tool also includes an integrated help where all functions and modes are
described in details.
More help can be found inside the web tool and the "?" button on
each configuration page
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Product description
The EDW-120 is an industrial Ethernet to serial interface adapter designed for harsh
environments.
It allows serial devices to interface through a new or existing Ethernet network. The
unit can support two RS-232, running at up to 115.2 kbit/s. Ethernet connection is via a
standard RJ-45 port with MDI/MDI-X.
The protocols used for network communication is UDP or TCP. This allows the
EDW-120 to be setup as a TCP-server or -client as well as an UDP unit.
Configuration of the unit
The EDW-120 can be easly configured via the onboard Web based configuration tool,
alternatively some functions can also be set by hardware DIP-switches on the PCB.
It is also possible to monitor and override the hardware settings by using the Web tool, if
that is done this is indicated by the RC LED (Remotely Controlled).
The serial port properties such as data rate, flow control and data bits etc. are
configured by the Web based configuration tool.
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Page 14
The local IP address of the unit can be configured by using a terminal program
such as Windows Hyper Terminal.
New Connection - Hyper Terminal
File
Edit View Call Transfer
'EDW-120 IP CONFIGURATION'
Firmware : 4100-9000
-- Current IP configuration --
Local IP address : 169.254.100.100
Gateway address : 169.254.100.1
Subnet Mask address : 255.255.255.0
Press <Return> to select the value shown in braces,
or enter a new value.
Local IP address [169.254.100.100]?
Help
Connected 0:01:33VT1009600 8-N-1NUM
SCROLL CAPS
Capture Print echo
Unique features
… Packing algorithm that enables the user to decide how and when the serial data
should be encapsulated in a TCP or UDP data frame and sent out on the network.
… Galvanic isolation, this feature eliminate communication errors. One of the most
common errors is caused by potential differences between interconnected equipment.
… Redundant power supply with wide input range.
These features along with the high EMC immunity enable the device to be used in
projects where a high degree of reliability is required.
Diagnostic information
The first level of diagnostic information is the status indicated by the LEDs.
LED is described on page 25.
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The Telnet diagnostic service provide the user with information such as UDP- or TCP
mode, connected or listening state (TCP) etc.
C:\WINDOWS\System32\telnet.exe
Westermo EDW-120
login: edw120
Password: ******
Hello edw120
Welcome to Westermo EDW-120 diagnostics service
(TCP Server): Listening for TCP connection on port: [9000]...
Getting started
IP Address
The default IP address of the EDW-120 when delivered is 169.254.100.100
Default port 9000 (A: RS-232)
Default port 9001 (B: RS-232)
Default gateway 169.254.100.1
IP address configuration
The IP address is configurable by the Web tool and/or by using a terminal program.
Below is an description of how to configure the IP address by using a terminal program.
1. Connect the serial A: RS-232 interface to a terminal program with settings:
Data rate: 9600 bit/s
Comport in a computer you have to use
a “null-modem” cable, because
both EDW-120 and the computer
interface is DTE.
EDW-120
DTE
3
2
7
8
6
5
1
4
9
Computer
DTE
3
2
7
8
6
5
1
4
9
2. Setting DIP S1:1 to ‘On’ and power-up the
EDW-120 this will enable the local IP address
ON
1 2 3 4 5 6 7 8
to be configured via serial interface.
Once connected with the terminal program you can change the IP address, Gateway
address and Subnet Mask according to the picture below:
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New Connection - Hyper Terminal
File
Edit View Call Transfer
'EDW-120 IP CONFIGURATION'
Firmware : 4100-9000
-- Current IP configuration --
Local IP address : 169.254.100.100
Gateway address : 169.254.100.1
Subnet Mask address : 255.255.255.0
Press <Return> to select the value shown in braces,
or enter a new value.
Local IP address [169.254.100.100]?
Help
See also
configuration by
Connected 0:01:33VT1009600 8-N-1NUM
SCROLL CAPS
Capture Print echo
Web Tool on page
18
3. Set DIP S1:1 to ‘Off’ and power cycle the EDW-120.
4. The unit is now ready for a complete configuration by the Web tool.
Username and Password for configuration
The EDW-120 is username and password protected. These are used when connecting
with Web browser during configuration and with Telnet for diagnostics.
Default username: edw120
Default password: edw120
Browser Login
The Webtool has two different login accounts.
The first is the EDW-120 Guest account that only allows the user to read the units
settings but he has no rights to configure the unit in any way.This accounts Username
and Password are fixed and aren’t configurable
EDW-120 Guest
Username: guest
Password: guest
or
Username: anonymous
Password: anonymous
EDW-120 Config
The second account is the EDW-120 Config that gives the user rights to configure the
unit with new parameter values.This accounts Username and Password can also be
configured when the user are logged in as EDW-120 Config. Default Username and
Password are listed below.
Default Username: edw120
Default Password: edw120
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Restore Factory default settings
ON
1 2 3 4 5 6 7 8
Note! This will clear your customized settings.
The factory default settings can be restored using DIP-switch S1:2.
1. Force this to ‘On’ and Power-up the EDW-120 for at least 5 seconds.
2. Force the DIP-switch to ‘Off’ and power cycle the EDW-120.
The EDW-120 now contains the factory default settings.
Note ! If the default address of the unit is valid on the connected network it is possible
to access the unit directly from a browser.
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Configuration by Web Tool
The EDW-120 includes an easy-to-use Web
configuration tool. The Web tool is very intuitive
and includes useful help information for the
configurable parameters.
Connect and login to the EDW-120 with the
EDW-120 Config account on the default IP
address and with default username- and password
combination (or your customized if configured)
using a standard Web browser.
Use the Configuration Wizard to set all
parameters then press the button "Program Unit"
to write the parameters into the unit or save the parameters to a file.
Serial/IP® and Telnet Options
EDW-120 are bundled with Serial/IP® virtual Com port director software. The Serial/IP®
use portions of the “Telnet Environment Option” (RFC1572) to verify that it is connected
to an EDW-120.
The EDW-120 has partial support for the “Telnet Com Port Control Option” (RFC2217).
This makes it possible to remotely (on the fly) change serial port parameters. Currently
supported parameters are baud rate, parity, number of data bits and number of stop bits.
As default the Telnet Options are disabled. If the Serial/IP® software is to be used, the
Telnet options must be enabled in the web tool. This parameter can be found on the
serial page.
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Diagnostics via Telnet
The EDW-120 provides the user with diagnostics information via a Telnet connection on
port 23.
Information presented to the user is:
… Operational mode (UDP, TCP-server or client)
… Operational status (Listening for connection (TCP server), connected to host (TCP
server or client), Attempting to connect (TCP client))
… The ‘Status’ LED on the EDW-120 will lit during Telnet session.
Below is an description of how to start a Windows Telnet session and get diagnostics
information from the EDW-120.
1. Start a Telnet session.
C:\WINDOWS\System32\telnet.exe
Welcome to Microsoft Telnet Client
Escape Character is 'CTRL+]'
Microsoft Telnet> o 169.254.100.100
2. Connect to EDW-120 by typing ‘o 169.254.100.100’
or the configured IP address of the EDW-120.
3. Login using default username and password
(or your customized settings if configured).
Application modes
The EDW-120 can be setup for use in one of three different application modes:
… TCP Server … TCP Client … UDP
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Short description of TCP and UDP
User Datagram Protocol (UDP)
UDP provides a connectionless datagram service. This means that the arrival of
datagram’s or data packets is not controlled and the reliability of the communication
is the responsibility of the application layer protocol. In this way UDP is a simpler
method of communication than TCP. As data is sent and received without any established
connection the data transfer is more efficient and often faster. UDP is therefore used
in applications that require efficient use of the bandwidth and also have a higher level
protocol to handle lost data.
Transmission Control Protocol (TCP)
TCP is a connection-oriented delivery service. Connection oriented means that a
connection must be established before hosts can exchange data. An acknowledgement
is used to verify that the data was received by the other host. For data segments sent,
the receiving host must return an acknowledgement (ACK). If an ACK is not received,
the data is retransmitted. Flow-control between the hosts is managed by TCP. For
larger amounts of data that have to be split between packets TCP provides a method
for reliably reassembling the data in the correct order. Because of the requirement to
establish a connection and acknowledge transmissions, TCP takes longer time to transmit
data than UDP and uses more bandwidth.
When delivered the EDW-120 is in TCP server mode.
TCP Server mode
This mode makes it possible to accept incoming TCP connections attempts to the
EDW-120 from an TCP client e.g. a EDW-120 in TCP client mode. Other examples of
TCP clients: Telnet client establishing a raw TCP connection, COM-port redirector
software running on a Windows PC.
TCP Client mode
This mode makes it possible to establish a TCP connection to a remote TCP server e.g. a
EDW-120 in TCP Server mode.
DSR signal rising or a powering up the unit will trigger the EDW-120 to make an
connection attempt to the specified server depending on configuration.
UDP mode
UDP is a connection less protocol sending datagram’s i.e. there are less overhead traffic
compared to TCP and no acknowledgement packets will be sent between the peer’s
during communication.
Using UDP will enable the EDW-120 to send and listen to broadcast- and multicast
messages.
20
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Packing algorithm
When data arrives at the serial port of the EDW-120 there must be one or more
criteria fulfilled to trigger the EDW-120 to encapsulate the received serial data into a
frame and send it out on the network.
These criteria are setup using different parameters i.e. the ‘packing algorithm’. The default
settings are selected to be compatible to most applications but can be optimized to
the customer specific application. Detailed description can be received from the Web
configuration tool.
Conditions
Received data
Packing
Transmitted data
Network
Advanced settings
Advanced settings configure the unit for special application requirements or special
interface functions, these settings are default disabled.
Detailed description can be received from the Web configuration tool.
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Page 22
Interface specifications
Power LV
Rated voltage12 to 48 VDC
Operating voltage10 to 60 VDC
Rated current200 mA @ 12 VDC
Rated frequencyDC
Maximum inrush
current @ 10 ms
Power up current< 0.3 A. Sensitive power supplies need current limit >= 0.3A
PolarityReverse polarity protected
Redundant power input Ye s
Isolation to All other 2 k Vrms
ConnectionDetachable screw terminal
Connector size0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cableNot required
RS-232
Electrical specificationEIA RS-232
Data rate300 bit/s – 115.2 kbit/s
Data format7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits.
ProtocolTransparent, optimised by packing algorithm
RetimingNot applicable
Circuit typeSELV
Transmission range15 m
Isolation toPower 2 kVrms Ethernet 1; 1.5 kVrms
Connection9-pin D-sub male (DTE)
Shielded cableNot required, except when installed in Railway applications as signalling
Conductive housingIsolated to all other circuits
Number of ports2 (port A and B)
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port. This
earthing point should have a low impedance connection to the conductive enclosure of the apparatus cabinet,
or similar, where the unit is built-in. This conductive enclosure should be connected to the earthing system
of an installation and may be directly connected to the protective earth.
100 mA @ 24 VDC
50 mA @ 48 VDC
0.13 A2s @ 48 VDC
and telecommunications apparatus and located close to rails*
22
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Ethernet 1
Electrical specificationIEEE std 802.3. 2000 Edition
Data rate10 Mbit/s or 100 Mbit/s, auto-negotiated or manually
ProtocolUDP, TCP, ICMP, HTTP and ARP
DuplexFull- or half duplex, auto-negotiated or manually set by DIP-switches
Circuit typeTNV-1
Transmission range100 m
Isolation toPower 2 kVrms
ConnectionRJ-45 shielded, auto MDI/MDI-X
Shielded cableNot required, except when installed in Railway applications as
Conductive housingIsolated to all other circuits
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port. This earthing
point should have a low impedance connection to the conductive enclosure of the apparatus cabinet, or similar,
where the unit is built-in. This conductive enclosure should be connected to the earthing system of an installation
and may be directly connected to the protective earth.
set by DIP-switches
RS-232 1.5 kVrms
RS-422/485 1.5 kVrms
signalling and telecommunications apparatus and located close
to rails*
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Page 24
Connections
S1 DIP-switch under lid
(for details see page 26)
Ethernet 1
RJ-45 connection
(for details see next page)
RS-232 (DTE)
9-position Direction Description
No. 1 N/C Not connected (DCD)
No. 2 In Received Data (RD)
No. 3 Out Transmitted Data (TD)
No. 4 Out Data Terminal Ready (DTR)
No. 5 – Signal Ground (SG)
No. 6 In Data Set Ready (DSR)
No. 7 Out Request To Send (RTS)
No. 8 In Clear To Send (CTS)
No. 9 N/C Not connected (RI)
NC Not Connected
LED indicators, also
integrated in the RJ-45
connector.
(for details see next page)
Power connection
screw terminal
4-position Description
No. 1 Common
No. 2 +VA
No. 3 +VB
No. 4 Common
24
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Ethernet 1
(Auto-Negotiation disabled**)
Position Direction* Signal name Description/Remark
No.1 In Transmit + Transmit data
No.2 In Transmit – Transmit data
No.3 Out Receive + (/–) Receive data, auto-polarity***
8
7
6
5
4
3
2
1
No.4 – - Terminated
No.5 – - Terminated
No.6 Out Receive – (/+) Receive data, auto-polarity***
No.7 – – Terminated
No.8 – – Terminated
Shield – Shield HF-connected to COM (via capacitor)
* Direction relative this unit.
** Disable auto-negotiation also disables auto crossover (auto MDI/MDI-X).
*** Auto-polarity always enabled an only relevant for 10BaseT.
NOTE! Pin number and signal name relations might be changed by auto crossover or
auto polarity.
CAT 5 cable is
recommended.
Unshielded (UTP)
or shielded (STP)
connector might
be used.
LED Indicators
LED Status Description
PWR OFF No internal power
Power
ON Internal Power OK
TD (A and B) OFF No serial data transmitted from A and B: RS-232
Transmit data
ON Serial data transmitted from A and B: RS-232
RD (A and B)OFF No serial data received to A and B: RS-232
Receive data
ON Serial data received to A and B: RS-232
LINK OFF No Ethernet link.
ON Good Ethernet link.
Flash Ethernet data is transmitted or received, traffic indication.
STAT OFF Normally Off
Status
ON Telnet session established to Telnet diagnostics service or
RC OFF DIP switch settings are valid.
Remotely controlled
ON One or more DIP switches are overrid by remote configuration.
SPD ON Mbit/s
Speed Integrated in RJ-45
OFF Mbit/s
Green
DPX ON Full duplex
Duplex Integrated in RJ-45
OFF Half duplex
Yellow
Cable not connected.
Ongoing configuration by Web tool.
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DIP-switch settings
Before DIP-switch settings:
!
Prevent damage to internal electronics from electrostatic discharges (ESD) by
discharging your body to a grounding point (e.g. use of wrist strap).
S1:1S1:8
S1* DIP-switch
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
* DIP switch functions may be override by WEB configuration tool. Override is indicated by RC LED.
S3, S4, S5 not used.
Ethernet Auto-negotiation disabled.
Auto crossover (MDI/MDIX)
disabled. 10 Mbit/s.
Ethernet 100 Mbit/s when Autonegotiation disabled
Ethernet 10 Mbit/s when Autonegotiation disabled
Ethernet Half Duplex Autonegotiation disabled or is not
supported.
Ethernet Full duplex when Autonegotiation disabled or is not
supported.
Note! DIP-switch alterations are only effective after a power on.
A setting configured by any other method during normal operation, possibly overrides
the DIP-switch setting. However, an override situation is indicated by the RC LED.
Factory settings
ON
S1
1 2 3 4 5 6 7 8
26
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Mounting
CLICK!
This unit should be mounted on 35 mm DIN-rail, which is
horizontally mounted inside an apparatus cabinet, or similar.
Snap on mounting, see figure.
Cooling
This unit uses convection cooling. To avoid obstructing the
airflow around the unit, use the following spacing rules.
Minimum spacing 25 mm (1.0 inch) above /below and 10 mm
(0.4 inches) left /right the unit. Spacing is recommended for the
use of unit in full operating temperature range and service life.
10 mm *
(0.4 inches)
25 mm
* Spacing (left/right) recommended for
full operating temperature range
Removal
Press down the black support at the top of the unit. See figure.
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25 mm
27
Page 28
Applications
SDRAM
8 MB
FLASH
2 MB
Power secondary 5 V
Power
Buffer size
DIP-switch
5 V = >3.3 V
3.3 V = >1.5 V
PROCESSOR
Data
Address
CTRL
JTAG
DEBUG
MAC
LED
stretch
XTAL
PHY
RS-232
CLK
XTAL
RESET
SERIAL A
I/O
Transmit Buffer 8Kbyte.
Receive Buffer 8Kbyte.
RJ-45
Ethernet 1
D-sub
PowerAPower
B
Connector
Isolation from all other interfaces
I/O
RS-232
SERIAL B
D-sub
28
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One to many using UDP using broadcast or multicast
Network
Description
The one to many function can be used in place of a traditional multidrop application. Data
entering one of the EDW-120 will be broadcast or Multicast to any other device in the broadcast
or multicast group. A typical application would be a SCADA host computer communicating to a
number of PLC’s.
Point to point using UDP connection
Network
Description
In a point to point application the EDW-120 can replace or extend a cable link. The distance
between the EDW-120 units is only limited by the size of the LAN. Data can be sent across the
network using ether UDP or TCP. A typical application is serial connections between PLC´s in
industrial applications. To understand the differences between a UDP and TCP please see page 20.
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Communication one to many using TCP
Network
Virtual IP
IP address:port = Com X
IP address:port = Com Y
IP address:port = Com Z
Description
Many legacy software applications do not have any facilities to directly use Ethernet but there is
a requirement to use a newly installed or existing LAN to communication to many serial devices.
This prblem is solved by installing Comms redirection software on the host PC. The redirection
software works by creating virtual comms ports on the computer. The Virtual comms port can
be selected and use in the same way as a hardware based port. The Comms redirection software
will encapsulate the serial data in a TCP/IP and send it to the relevant EDW-120 device. The EDW120 will then strip off the TCP/IP frame and just forward the serial data to the target device. In
the reverse direction the EDW-120 will encapsulate the data and the comms redirection software
will strip off the TCP/IP frame. Together with the unit Virtual IP is delivered, this software enables
connection of 255 COM ports to virtual IP addresses.
30
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Page 32
Westermo • SE-640 40 Stora Sundby, Sweden
Tel +46 16 42 80 00 Fax +46 16 42 80 01
Sales Units
Westermo Data Communications
E-mail: info@westermo.com
www.westermo.com
China
sales.cn@westermo.com
www.cn.westermo.com
France
infos@westermo.fr
www.westermo.fr
Germany
info@westermo.de
www.westermo.de
For complete contact information, please visit our website at www.westermo.com/contact
REV. E 6616-2211 2014.11 Westermo Teleindustri AB, Sweden – A Beijer Electronics Group Company
North America
info@westermo.com
www.westermo.com
Singapore
sales@westermo.com.sg
www.westermo.com
Sweden
info.sverige@westermo.se
www.westermo.se
or scan the QR code with your mobile phone.
United Kingdom
sales@westermo.co.uk
www.westermo.co.uk
Other Offices
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