EDW-100
6616-2203
EDW-100
Serial Adapter
www.westermo.com
© Westermo Teleindustri AB
User Guide
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
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6616-2203
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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3
ATEX Information (Applicable for EDW-100 Ex only)
General
This unit is intended for use in Zone 2 hazardous location only.
Marking
II 3 G
Ex nA IIC T4 Gc
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
Ex
nA
IIC
T4
Gc
SPECIAL
CONDITION
4
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).
Indicates that this unit is in conformity with relevant European Ex standard(s).
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.
Gas group, a typical gas i hydrogen.
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.
6616-2203
Ratings
Power
12 – 48 VDC; 250 mA
Ambient temperature
–25ºC ≤ Ta ≤ +70ºC
Ingress protection (IP)
IP21
Maximum surface temperatur
135ºC (temperature class T4)
Safety Control Drawing
Degree of protection
Ambient temperature
Installation spacing
IP 21
–25°C to +70°C
Minimum 25 mm above / below
Minimum 10 mm left / right
Position
1
2
3
4
5
6
7
8
Descripton
In/Out / TD+
In/Out / TD–
In/Out / RD+
Not connected
Not connected
In/Out / RD–
Not connected
Not connected
Input / Output values
U = ± 1 V (4μV/s)
I = ± 20 mA
Data rate:
10/100 Mbit/s
123
4
123
4
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
1
2
3
4
5
6
7
8
9
Descripton
Not connected (DCD)
In / Received Data (RD)
Out / Transmitted Data (TD)
Out / Data Terminal Ready (DTR)
– / Signal Ground (SG)
In / Data Set Ready (DSR)
Out / Request To Send (RTS)
In / Clear To Send (CTS)
Not connected
Input /Output values
Position
1
2
3
Descripton
In / R+ line RS-422
In / R– line RS-422
In/out / T+ line RS-422/485
Input / Output values
Umax = ± 5 Vpk
Imax = ± 250 mA
4
In/out / T– line RS-422/485
Position
Descripton
1
In / Common
2
3
4
In / +Voltage A
In / +Voltage B
In / Common
Umax = ± 12 Vpk
Imax = ± 60 mA
Data rate:
0.3 – 115.2 kbit/s
Data rate:
0.3 – 115.2 kbit/s
Input values
Umin/max = 10 – 60 VDC
Imax = 300 mA
Pmax = 3 W
See section Type tests and environmental conditions in this
user manual for proven transient protection.
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5
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:
This unit requires installation in an Ex certified apparatus cabinet suitable for the area of use and
providing a degree of protection of at least IP54.
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 an explosive atmospheres, all connectors must be mechanically secured
to prevent loosening.
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
EN 60079-0 and EN 60079-15
2011-01-21
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6616-2203
Agency approvals and standards compliance
Type
EMC
Approval / Compliance
EN 61000-6-2, Immunity industrial environments
EN 61000-6-4, Emission industrial environments
EN 55024, Immunity IT equipment
EN 50121-4, Railway signalling and telecommunications apparatus
IEC 62236-4, Railway signalling and telecommunications apparatus
Safety
UL/CSA/IEC/EN 60950-1, IT equipment*
EN 60950-1, IT equipment**
ATEX** EN 60079-0 and EN 60079-15
* Applicable for EDW-100 only
**Applicable for EDW-100 Ex only
FCC Part 15.105
Notice:
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.
EN 55022 Notice: 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.
6616-2203
7
Declaration of Conformity, EDW-100 / EDW-100 Ex
Westermo Teleindustri AB
Declaration of conformity
The manufacturer
Westermo Teleindustri AB
SE-640 40 Stora Sundby, Sweden
Herewith declares that the product(s)
Type of product
Ethernet to serial adapter
Model
EDW-100
EDW-100 EX
EDW-120
EDW-120 EX
Art no
3616-0020
3616-5020
3616-0010
3616-5010
is in conformity with the following EC directive(s).
No
Short name
2004/108/EC
94/9/EC 1
Electromagnetic Compatibility (EMC)
Equipment Explosive Atmospheres (ATEX)
References of standards applied for this EC declaration of conformity.
No
EN 55022
EN 61000-6-1
Title
Information technology equipment – Radio disturbance characteristics –
Limits and methods of measurement
Information technology equipment – Immunity characteristics
Limits and methods of measurement
Railway applications – Electromagnetic compatibility – Emission and
immunity of the signalling and telecommunications apparatus
Electromagnetic compatibility – Immunity for residential environments
EN 61000-6-2
Electromagnetic compatibility – Immunity for industrial environments
2005
EN 61000-6-3
Electromagnetic compatibility – Emission for residential environments
2007
EN 61000-6-4
Electromagnetic compatibility – Emission for industrial environments
2007
EN 60079-0 1
Explosive atmospheres – Equipment, General requirements
2009
EN 60079-15 1
Electrical apparatus for explosive gas atmospheres – Construction, test
and marking of type of protection “n” electrical apparatus
2005
EN 55024
EN 50121-4
The last two digits of the year in which the CE marking was affixed:
Issue
2006
+A1:2007
1998 + A1:2001
+ A2:2003
2006
2007
11
Pierre Öberg
Technical Manager
13th January 2011
1
8
Only applicable for EDW-100 EX and EDW-120 EX.
Postadress/Postal address
Tel.
Telefax
Postgiro
Bankgiro
Org.nr/
Corp. identity number
Registered office
S-640 40 Stora Sundby
Sweden
016-428000
Int+46 16428000
016-428001
Int+46 16428001
52 72 79-4
5671-5550
556361-2604
Eskilstuna
6616-2203
Type tests and environmental conditions
Electromagnetic Compatibility
Phenomena
Test
ESD
EN 61000-4-2
RF field AM
modulated
RF field 900 MHz
Fast transient
IEC 61000-4-3
Surge
EN 61000-4-5
ENV 50204
EN 61000-4-4
RF conducted
EN 61000-4-6
Pulse magnetic field
Voltage dips
and interruption
EN 61000-4-9
EN 61000-4-29
Radiated emission
EN 55022
FCC part 15
EN 55022
EN 60950
Conducted emission
Dielectric strength
Environmental
Temperature
Humidity
Altitude
Service life
Vibration
Shock
Packaging
Enclosure
EDW-100
EDW-100 Ex
Dimension
WxHxD
Weight
Degree of protection
Cooling
Mounting
6616-2203
IEC 60068-2-6
Description
Enclosure contact
Enclosure air
Enclosure
Enclosure
Signal ports
Power ports
Signal ports
unbalanced
Signal ports balanced
Power ports
Signal ports
Power ports
Enclosure
DC power ports
Enclosure
DC power ports
Signal port to other
isolated ports
Power port to other
isolated ports
Operating
Storage & Transport
Maximum surface
temperature
Operating
Storage & Transport
Operating
Operating
Operating
IEC 60068-2-27 Operating
UL 94
–
PC / ABS
Cabelec CA6141
IEC 529
Enclosure
Test levels
± 6 kV
± 8 kV
20V/m 80% AM (1 kHz), 80 – 2 000 MHz
12V/m 80% AM (1 kHz), 2 000 – 2 700 MHz
20 V/m pulse modulated 200 Hz, 900 ± 5 MHz
± 2 kV
± 2 kV
± 2 kV line to earth, ± 2 kV line to line
± 2 kV line to earth, ± 1 kV line to line
± 2 kV line to earth, ± 2 kV line to line
10 V 80% AM (1 kHz), 0.15 – 80 MHz
10 V 80% AM (1 kHz), 0.15 – 80 MHz
1000 A/m, 6.4 / 16 ms pulse
10 & 100 ms, interruption
10 ms, 30% reduction
10 ms, 60% reduction
+20% above & –20% below rated voltage
Class A
Class A
Class B
1.5 kVrms 50 Hz 1 min
2 kVrms 50 Hz 1 min
–25 to +70ºC
–40 to +70ºC
135ºC (temperature class T4)
5 to 95% relative humidity
5 to 95% relative humidity
2 000 m / 70 kPa
10 year
7.5 mm, 5 – 8 Hz
2 g, 8 – 500 Hz
15 g, 11 ms
Flammability class V-1
–
35 x 121 x 121 mm
0.2 kg
IP 21
Convection
On 35 mm DIN-rail
9
Introduction
The EDW-100 is an Industrial Ethernet to serial adapter or Ethernet Terminal Server.
The serial interface is selectable between RS-232 and RS-422/485. The Ethernet interface
is 10/100BASE-T and supports the following networking protocols: TCP, UDP, ICMP, IGMP,
HTTP, ARP.
Two EDW-100 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-100 can be configured
as client or server.
In addition to a transparent serial point-to-point link and ethernet to serial adapter, the
EDW-100 MG can also be configured to act as a Modbus gateway.
Network
Serial
Device
Configured
as UDP- or
TCP-server
Configured
as UDP- or
TCP-client
Serial
Device
Serial
Slave
Network
Broadcast
Multicast
Serial
Slave
Serial
Master
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.
When EDW-100 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
Serial
Slave
Network Interface
Application software
COM port
redirector software
Data to / from COM3
Data to / from COM4
Data to / from COM5
Data to / from COM255
Network
COM3
COM255
COM4
10
COM5
EDW-100 can also provide a remote serial interface
for a computer connected through a TCP/IP network
using a comport redirection 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-100.
No changes are required on the computer application
software.
6616-2203
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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11
Product description
The EDW-100 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 either RS-232, RS-485 or RS-422 based protocols 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 EDW100 to be setup as a TCP-server or -client as well as an UDP unit.
Configuration of the unit
The EDW-100 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.
The network interface properties such as speed, duplex and auto-negotiation can be
configured by the Web based configuration tool and some settings can be made by hardware DIP-switches.
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.
12
6616-2203
Termination and fail-safe of the RS-422/485 serial interface can only be made by DIP-switches only.
The local IP address of the unit can be configured
by using a terminal program.
New Connection - Hyper Terminal
File
Edit
View
Call
Transfer
Help
'EDW-100 IP CONFIGURATION'
Firmware
: 4100-9002
-- 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]?
Connected 0:01:33
VT100
9600 8-N-1
SCROLL
CAPS
NUM
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.
Theses feature along with the high EMC immunity enables the device to be used in
projects where a high degree of reliability is required.
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13
Diagnostic information
The first level of diagnostic information is the status indicated by the LED´s.
C:\WINDOWS\System32\telnet.exe
Westermo EDW-100
login: edw100
Password: ******
Hello edw100
Welcome to Westermo EDW-100 diagnostics service
(TCP Server): Listening for TCP connection on port: [9000]...
The Telnet diagnostic service provide the user with information
such as UDP- or TCP mode, connected or listening state (TCP) etc.
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6616-2203
Getting started
IP Address
The default IP address of the EDW-100 when delivered is 169.254.100.100.
Default port 9000
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. If the address is known, connect the unit from a Web browser with the address to
EDW-100. If the address is unknown, connect the serial RS-232 interface to a terminal
program with settings:
EDW-100
Computer
DTE
DTE
Data rate: 9600 bit/s
Data bits: 8
3
3
2
2
Stop bits: 1
7
7
Parity: None
8
8
6
6
Flow control: None
5
5
Note! When connecting EDW-100 to a Comport in a
1
1
4
4
computer you have to use a “Cross-over” cable,
9
9
because both EDW-100 and the computer
interface is DTE. 1.8 m standard cable is supported by Westermo art.no.
1211-2172.
2. Setting DIP S1:1 to ‘On’ and power-up the EDW-100 will enable the local IP address
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:
New Connection - Hyper Terminal
File
Edit
View
Call
Transfer
Help
'EDW-100 IP CONFIGURATION'
Firmware
: 4100-9002
-- 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]?
Connected 0:01:33
VT100
9600 8-N-1
SCROLL
CAPS
NUM
Capture
Print echo
See also configuration by
Web Tool on page 14
3. Set DIP S1:1 to ‘Off’ and power cycle the EDW-100.
4. T
he unit is now ready for a complete configuration by the Web tool.
Address EDW-100 in a browser with the configured IP address.
Note that the used computer have to be on the same
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15
Username and Password for configuration
The EDW-100 is username and password protected. These are used when connecting
with Web browser during configuration and with Telnet for diagnostics.
Default username: edw100
Default password: edw100
Browser Login
The Webtool has two different login accounts.
The first is the EDW-100 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-100 Guest
Username: guest
Password: guest
or
Username: anonymous
Password: anonymous
EDW-100 Config
The second account is the EDW-100 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-100 Config. Default Username and Password
are listed below.
Default Username: edw100
Default Password: edw100
Restore Factory default settings
Note! This will clear your customized settings.
ON
The factory default settings can be restored using DIP-switch S1:2.
1 2 34 56 78
1. Force this to ‘On’ and Power-up the EDW-100 for at least 5 seconds.
2. Force the DIP-switch to ‘Off’ and power cycle the EDW-100.
The EDW-100 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-100 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-100 with the
EDW-100 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-100 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-100.
The EDW-100 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/IP page.
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17
Diagnostics via Telnet
The EDW-100 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-100 will lit during Telnet session.
Below is an description of how to start a Windows Telnet session and get diagnostics
information from the EDW-100.
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. C
onnect to EDW-100 by typing ‘o 169.254.100.100’
or the configured IP address of the EDW-100.
3. Login using default username and password
(or your customized settings if configured).
Application modes
The EDW-100 can be setup for use in one of four different application modes:
… TCP Server
… TCP Client
… UDP
… Modbus gateway
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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-100 is in TCP server mode.
TCP Server mode
This mode makes it possible to accept incoming TCP connections attempts to the
EDW-100 from an TCP client e.g. a EDW-100 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-100 in TCP Server mode.
DSR signal rising or a powering up the unit will trigger the EDW-100 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-100 to send and listen to broadcast- and multicast
messages.
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19
Short description of Modbus
Modbus is a communication protocol developed by Modicon systems. The EDW-100
Modbus gateway is used for interconnecting a TCP/IP Modbus network and a serial line
Modbus network (either RTU or ASCII). It permits Modbus clients (masters) on either of
the TCP/IP or the serial network to connect to Servers (slaves) on the other network.
In a standard Modbus network, there is one master and up to 247 Slaves, each with a
unique slave address from 1 to 247. The master can also write information to the slaves.
The official Modbus specification can be found at www.modbus-ida.org.
Gateway Server mode
Allows up to 16 Modbus clients (masters) on a TCP/IP network to connect to servers
(slaves) on the serial network.
Modbus TCP Client
Modbus TCP
Modbus RTU or
Modbus ASCII
Ethernet
RS-485
Modbus Slave 1
EDW-100
Modbus Gateway
Modbus Slave 2
Modbus TCP Client
Up to 16 TCP
Clients (Master)
Up to 247 servers
(Slaves)
Modbus Slave 3
Modbus Slave 4
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6616-2203
Gateway Client mode
Allows one Modbus client (master) on a serial network to connect to one or more servers (slaves) on the TCP/IP network.
Modbus
Slave 5
Modbus TCP
Modbus RTU or
Modbus ASCII
Ethernet
RS-485
EDW-100
Modbus gateway
Modbus Client
Modbus Slave 2
Modbus
Slave 6
Max total 247 Servers
1 Client (Master)
and up to
247 servers
(Slaves)
Modbus Slave 3
Modbus Slave 4
Setting up the EDW-100 as a Modbus Gateway
Set the EDW-100 application mode to Modbus gateway to enable the gateway functionality. Serial settings and ip-configuration is shared whit the other application mode but the
rest of the Modbus configuration is done on the specific Modbus configuration page.
To set up the gateway it is necessary to know details about the tcp and the serial
Modbus network. Please refer to the web tool help page for more configuration details.
6616-2203
21
Packing algorithm
When data arrives at the serial port of the EDW-100 there must be one or more
criteria fulfilled to trigger the EDW-100 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.
22
6616-2203
Interface specifications
Power LV
Rated voltage
Operating voltage
Rated current
Rated frequency
Maximum inrush
current @ 10 ms
Polarity
Redundant power input
Isolation to
Connection
Connector size
RS-422/485
Electrical specification
Data rate
Data format
Protocol
Retiming
Turn around time
Circuit type
Transmission range
Settings
Protection
Isolation to
Connection
Connector size
Shielded cable
Conductive housing
12 to 48 VDC
10 to 60 VDC
250 mA @ 12 VDC
125 mA @ 24 VDC
63 mA @ 48 VDC
DC
0.3 A²s @ 48 VDC
Reverse polarity protected
Yes
All other 2 kVrms
Detachable screw terminal
0.2 – 2.5 mm² (AWG 24 – 12)
E IA RS-485
2-wire or 4-wire twisted pair
300 bit/s – 115.2 kbit/s
7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits
Transparent, optimised by packing algorithm
Not applicable
< 3 bits
TNV-1
≤ 1200 m, depending on data rate and cable type (EIA RS-485)
120 Ω termination and fail-safe biasing 680 Ω
Installation Fault Tolerant (up to ±60 V)
Power 2 kV
Ethernet 1; 1.5 k Vrms
Detachable screw terminal
0.2 – 2.5 mm² (AWG 24 – 12)
Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located
close to rails*
No
* 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.
6616-2203
23
RS-232
Electrical specification
Data rate
Data format
Protocol
Retiming
Circuit type
Transmission range
Isolation to
Connection
Shielded cable
Conductive housing
Number of ports
Ethernet
Electrical specification
Data rate
Protocol
Duplex
Circuit type
Transmission range
Isolation to
Connection
Shielded cable
Conductive housing
EIA RS-232
300 bit/s – 115.2 kbit/s
7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits.
Transparent, optimised by packing algorithm
Not applicable
SELV
15 m
Power 2 kV
Ethernet 1; 1.5 kVrms
9-pin D-sub male (DTE)
Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close
to rails*
Isolated to all other circuits
1
IEEE std 802.3. 2000 Edition
10 Mbit/s or 100 Mbit/s, auto-negotiated or manually
set by DIP-switches
UDP, TCP, ICMP, HTTP and ARP
Full- or half duplex, auto-negotiated or manually set by DIPswitches
TNV-1
100 m
Power 2 kVrms
RS-232 1.5 kVrms
RS-422/485 1.5 kVrms
RJ-45 shielded, auto MDI/MDI-X
Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close
to rails*
Isolated 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.
24
6616-2203
Connections
S1 DIP-switch under lid
(for details see page 25)
LED indicators, also
integrated in the RJ-45
connector.
(for details see next page)
RS-422/485 interface
screw terminal
4-position Direction* Description
No. 1
In
+
R
line RS-422
No. 2
In
R–
line RS-422
No. 3
In/Out
T+
line RS-422/485
No. 4
In/Out
T–
line RS-422/485
Ethernet 1
RJ-45 connection
(for details see next page)
* Direction relative this unit
S2 DIP-switch
Termination
(for details see page 25)
Power connection
screw terminal
4-position
No. 1
No. 2
No. 3
No. 4
RS-232 (DTE)
9-position
No. 1
No. 2
No. 3
No. 4
Direction
N/C
In
Out
Out
No. 5
No. 6
No. 7
No. 8
No. 9
–
In
Out
In
N/C
6616-2203
Description
Not connected (DCD)
Received Data (RD)
Transmitted Data (TD)
Data Terminal Ready
(DTR)
Signal Ground (SG)
Data Set Ready (DSR)
Request To Send (RTS)
Clear To Send (CTS)
Not connected (RI)
Description
Common
+VA
+VB
Common
The EDW-100 supports redundant power
connection. The positive input are +VA and
+VB, the negative input for both supplies are
COM. The power is drawn from the input
with the highest voltage.
25
Ethernet
Ethernet TX connection (RJ-45 connector), automatic MDI/MDI-X crossover*.
Contact
1
2
3
4
5
6
7
8
Shield
Signal Name
TD+
TD–
RD+
Direction
In/Out
In/Out
In/Out
RD–
In/Out
Description/Remark
Transmitted/Received data
Transmitted/Received data
Transmitted/Received data
NC
NC
Transmitted/Received data
NC
NC
HF-connected
8
7
6
5
4
3
2
1
CAT 5 cable is recommended.
Unshielded (UTP) or
shielded (STP) connector might be used.
* Depend of settings on S1; 6, 7 and 8.
LED Indicators
LED
PWR
Power
TD
Transmit data
RD
Receive data
RTS
Request to send
CTS
Clear to send
LINK
STAT
Status
RC
Remotely controlled
SPD
Speed Integrated in RJ-45
Green
DPX
Duplex Integrated in RJ-45
Yellow
26
Status
OFF
ON
OFF
OFF
ON
ON
OFF
Description
No internal power
Internal Power OK
No serial data transmitted from the unit,
(RS-232 or RS-422/485)
Serial data transmitted from the unit, (RS-232 or RS-422/485)
No serial data received to the unit, (RS-232 or RS-422/485)
Serial data received to the unit, (RS-232 or RS-422/485)
No RTS to the RS-232 interface or RS-422/485 transmitting.
RTS to the RS-232 interface or RS-422/485 receiving.
No CTS from the RS-232 interface
CTS from the RS-232 interface
No Ethernet link.
Cable not connected.
Good Ethernet link.
Ethernet data is transmitted or received, traffic indication.
Normally Off
Telnet session established to Telnet diagnostics service or
Ongoing configuration by Web tool
DIP switch settings are valid.
One or more DIP switches are overrid by remote configuration
Ethernet 100 Mbit/s
Ethernet 10 Mbit/s
ON
OFF
Full duplex
Half duplex
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Flash
OFF
ON
6616-2203
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).
S1:8
S1:1
S1* DIP-switch
ON
ON
Normally off
1 2 34 56 78
ON
1 2 34 56 78
1 2 34 56 78
Enable local IP configure via serial
interface.
ON
ON
1 2 34 56 78
ON
Normally off
1 2 34 56 78
1 2 34 56 78
ON
ON
Restore factory default.
1 2 34 56 78
ON
1 2 34 56 78
1 2 34 56 78
Ethernet Auto-negotiation enabled.
Auto-crossover enabled.
10 Mbit/s.
ON
1 2 34 56 78
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 Full duplex when Autonegotiation disabled or is not
supported.
Ethernet Half Duplex Autonegotiation disabled or is not supported.
*D
IP switch functions may be override by WEB configuration tool. Override is indicated by RC LED.
S1, 3, 4 and 5 not used.
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.
S2 Below panel
ON
1 2 34
ON
1 2 34
4-wire termination.
120 ohm 4-wire termination and fail-safe
2-wire termination.
120 ohm 2-wire termination and fail-safe
Factory settings
S1
ON
1 2 34 56 78
6616-2203
S2
ON
1 2 34
27
Mounting
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.
CLICK!
CLICK!
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)
* S pacing (left/right) recommended for
full operating temperature range
25 mm
25 mm
Removal
Press down the black support at the top of the unit. See figure.
28
6616-2203
3.3 V = >1.5 V
Buffer size
Transmit Buffer 8Kbyte.
Receive Buffer 8Kbyte.
DIP-switch
LED
stretch
JTAG
DEBUG
XTAL
FLASH
2 MB
MAC
Data
Address
CTRL
PHY
RJ-45
PROCESSOR
SDRAM
8 MB
Ethernet 1
Power secondary 5 V
5 V = >3.3 V
Applications
RS-232
I/O
XTAL
CLK
RESET
D-sub
Power
SERIAL CH 1
RS-422/485
I/O
Power
A
Power
B
Screw terminal
Connector
Isolation from all other interfaces
RS-422/485 general advice
4-wire termination
R+
R–
T+
T–
R– R+ T– T+ R– R+ T– T+
EDW-100
B’ A’ B
A
=Termination
Slave unit
Slave unit
Slave unit
2-wire termination
T+
T–
Max 0.3 metre
EDW-100
T- T+
T- T+
B
A
=Termination
Slave unit
Slave unit
Slave unit
Termination recommendations
The RS-422/485 line must be terminated regardless of the cable length. The termination
is ideally placed at the extreme ends of the cable see examples above. The description
of the RS-422/485 pin outs will vary between manufactures. For some brands the T+
corresponds to A T- to B, R+ to A´ and R- to B´, but other brands might use some other
naming convention. If a unit does not work it can help to swap A and B. If difficulty is
being experience contact Westermo for further guidance.
6616-2203
29
One to many using UDP using broadcast or multicast
Network
Description
The one to many function can be used in place of a traditional RS-422 or RS-485 multidrop
application. Data entering one of the EDW-100 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 TCP connection, server and client
Network
30
6616-2203
Point to point using UDP connection
Network
Description
In a point to point application the EDW-100 can be to replace or extend a cable link.
The distance between the EDW-100 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
would be a SCADA or Data logging application interrogating a sensor or PLC.
To understand the differences between a UDP and TCP please see page 16–17.
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 problem is solved by installing a serial port redirection software on the host PC. The redirection software works by creating virtual serial ports on the computer. The Virtual serial port can be
selected and use in the same way as a hardware based port. The serial redirection software will
encapsulate the serial data in a TCP/IP and send it to the relevant EDW-100 device. The EDW-100
will then strip off the TCP/IP frame and just forward the serial data to the target device. In th e
reverse direction the EDW-100 will encapsulate the data and the serial redirection software will
strip off the TCP/IP frame. The serial redirection software can create up to 255 serial comms ports
on a single computer.
6616-2203
31
Westermo Teleindustri AB • SE-640 40 Stora Sundby, Sweden
Phone +46 16 42 80 00 Fax +46 16 42 80 01
E-mail: info@westermo.com
Westermo Web site: www.westermo.com
United Kingdom
Westermo Data Communications Ltd
Talisman Business Centre • Duncan Road
Park Gate, Southampton • SO31 7GA
Phone: +44(0)1489 580‑585 • Fax.:+44(0)1489 580586
E-Mail: sales@westermo.co.uk
Germany
Westermo Data Communications GmbH
Goethestraße 67, 68753 Waghäusel
Tel.: +49(0)7254-95400-0 • Fax.:+49(0)7254-95400-9
E-Mail: info@westermo.de
France
Westermo Data Communications S.A.R.L.
9 Chemin de Chilly 91160 CHAMPLAN
Tél : +33 1 69 10 21 00 • Fax : +33 1 69 10 21 01
E-mail : infos@westermo.fr
Singapore
Westermo Data Communications Pte Ltd
2 Soon Wing Road #08-05
Soon Wing Industrial Building
Singapore 347893
Phone +65 6743 9801 • Fax +65 6745 0670
E-Mail: sales@westermo.com.sg
North America
Westermo Data Communications
939 N. Plum Grove Road, Suite F
Schaumburg
Chicago
Phone: +1 847 619 6068
Fax: +1 847 619 66 74
E-mail: info@westermo.com
Taiwan
Westermo Data Communications Co
F2, No. 188, Pao-Chiao Rd.
Shing-Tien City
Taipei 23145
Phone:+886 2 8911 1710
E-mail: info@westermo.com
Westermo Teleindustri AB have distributors in several countries, contact us for further information.
REV.C 6616-2203 2011.09 Westermo Teleindustri AB, Sweden – A Beijer Electronics Group Company
Sales Units
Sweden
Westermo Data Communications AB
Svalgången 1
SE-724 81 Västerås
Phone: +46 (0)21 548 08 00 • Fax: +46 (0)21 35 18 50
E-Mail: info.sverige@westermo.se
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