HW Group IP Relay User manual

IP Relay
2x Relay controlled over Ethernet
+ RS-232 / Ethernet converter (Terminal server)
EN 900 478a

IP Relay – 2x relay + RS-232 / Ethernet converter HW group
June 2006 www.HW-group.com Page 2 / 28
Shipment contents
Complete shipment of the IP Relay contains following items:
•IP Relay in a metal box and mechanic version corresponding to the ordering number
•A 1:1 serial prolonging cable (DB9F - DB9M) for the device setup via RS-232
•Power adaptor in European version
•Printed manual + datasheet
•CD with the necessary software
oIPRC (IP Relay Controller)
oHW VSP (HW Virtual Serial Port)
oHercules utility

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Table of contents
Shipment contents...........................................................................................................................2
Table of contents..............................................................................................................................3
Characteristics and basic properties .............................................................................................4
Features ......................................................................................................................................... 4
Connection topology ....................................................................................................................... 5
Connector descriptions...................................................................................................................7
Using the device...............................................................................................................................8
Quick setup..................................................................................................................................... 8
Controlling the IP Relay with the IP Relay Control 1.2 software ..................................................... 9
Controlling the IP Relay with HW Virtual Serial Port..................................................................... 10
SETUP troubleshooting ................................................................................................................ 10
Controlling the Relay and LED diodes .......................................................................................... 11
Setting other parameters of the device ......................................................................................... 13
HW VSP - Virtual Serial Port..........................................................................................................15
IPRC – IP Relay Control.................................................................................................................17
Basic characteristics of IPRC ....................................................................................................... 17
Description of configuration parameters.....................................................................................19
Default device configuration ......................................................................................................... 19
Device network parameters .......................................................................................................... 20
Parameters of TCP and UDP connection ..................................................................................... 21
Serial port parameters .................................................................................................................. 22
Other device parameters .............................................................................................................. 23
Application hints............................................................................................................................25
Free application software.............................................................................................................. 26
Basic types of communication .....................................................Chyba! Záložka není definována.
Mechanical dimensions.................................................................................................................27
Device versions..............................................................................................................................28
Contact............................................................................................................................................28

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Characteristics and basic properties
IP Relay combines two relays controlled over Ethernet and RS-
232 / Ethernet converter. The device can reset a remote device
via Ethernet or switch its power supply on or off. IP relay can be
also used as a remote serial port.
Features
•Ethernet - RJ45 (10BASE-T - IEEE 802.3)
•RS-232 Serial port (RxD, TxD, CTS, RTS, GND)
o7, 8, or 9 data bits;
obaudrate: 50..115200Bd;
oHW/SW handshaking
•Testing software and virtual serial port for Windows 2000/XP available on a CD
•The examples of remote control by Java, VisualBasic, Delphi and PHP commands
available
•Two independent relays controlled via Ethernet by NVT commands (M2M protocol).
Standard relay configuration:
oRelay 1: Controls breaking contact
leading out the power supply,
output clips can be connected
directly as a power supply for an IP
camera, microwave modem or a
power relay.
oRelay 2: Switching contact can be
connected to any RESET button
Other possible contact configurations
can be found in the table at the end of this manual.
•DIP2 switch intended for free use e.g. for identification of service works.
•Possible ways of device configuration
oRS-232 Setup (over serial port using any RS-232 terminal - 9600 8N1)
oUDP Setup (configuration of basic network parameters)
oTCP Setup (remote configuration in the terminal via TCP)
•Access security and relay control:
oYou can limit access to the device only from a predefined IP address range
oTCP connection can be secured using a 128-bit TEA algorithm
•Metal box dimensions: 25 x 82 x 90 [mm]
The device can be fitted on a DIN molding. We can supply side brackets for wall-mounting
upon request.

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Connection topology
•TCP/IP - NVT
After powering up, the device listens on the given port and awaits TCP client connection.
When the client connects, data from the Ethernet are sent to the serial line and vice versa.
If the client is not connected and data are coming from the serial line, they are stored in a
buffer (cca 16 kB) and transmitted immediately after establishing a connection.
Both relays can be controlled by NVT type M2M protocol. The protocol extends the
implemented RFC 2217 (controlling the serial port via Ethernet). The device does not
have a WWW interface. To control the device you can also use a IPRC program,
Hercules Utility or programmer examples for JAVA, Delphi, Borland C++, Visual Basic,
PHP and others.
TCP/IP Client/Server mode - IP Relay keeps the TCP server function but when any data
are received from the serial line, it is stored into the buffer, the IP relay switches into a
TCP Client mode and tries to establish a TCP connection on the predefined IP address of
the opposite side.
•HW VSP
With the help of HW VSP (version 1.9 and higher) you can create a virtual serial port (e.g.
COM 5), which will be redirected to a relay’s RS-232 port. Both output relays are then
controlled from the “IP Relay” tab of the HW VSP program.
•UDP
UDP connection allows the data transfer to the RS-232 only, not controlling the device

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Technical parameters
Ethernet port
+ Interface RJ45 (10BASE-T / 100BASE-Tx)
+ Compatibility Ethernet: Version 2.0/IEEE 802.3
+ Supported protocols IP: ARP, TCP/IP, NVT, RFC2217, UDP/IP
+ Network modes TCP/IP server, TCP/IP client/server, UDP/IP
+ Communication security 128-bit TEA cipher, predefined range of IP addresses
Serial port 1 DB9F
+ Data bits 7, 8 or 9
+ Stop bits 1 or 2
+ Parity None / Odd / Even / Mark / Space
+ RS-232 interface RxD,TxD,RTS,CTS,GND
+ Communication speed Adjustable in the range of 50..115200 Bd
Channel configuration possibilities
PO (Power On) When device switched on, the external supply voltage is lead out over (A = +,
B = GND) Max current 100mA (50mA/Channel).
PF (Power Off) When device switched on, the pins A and B are unpowered (A = +, B = GND)
Max current 100mA (50mA/Channel).
NO (normally open) Switching contact remains open when the power supply is turned on.
NC (normally close)Break contact remains closed when the power supply is turned on.
+ Max. load of the contacts max. 50V / 1A DC
Environment parameters
+ Temperature Operation : -5 to +50 °C , Storage : -5 to +75 °C
+ Relative humidity (non-condensing) 5 to 95 %
LED diodes
+ POWER (green) GREEN – power supply turned on
+ LINK & Activity (green) GREEN - Ethernet connection
+ LED3 - D0 (yellow) Controlled via NVT as a D0 output
In the combination with HW VSP or IP Relay Control, tied with Channel 1
+ LED4 - D1 (red) Controlled via NVT as a D1 output
+ LED4 - D7 (green) Controlled via NVT as a D7 output
In the combination with HW VSP or IP Relay Control, tied with Channel 2
DIP switches
+ DIP1 - RS-232 Setup ON = RS-232 Setup mode (9600 8N1)
OFF = Ethernet mode
+ DIP2 - Remote Input ON = D4 remote input = Log. 1
OFF = D4 remote input = Log. 0
+ DIP3, DIP4 Not used
Other parameters
+ Supply voltage 12-15 V/ 150 mA DC- coaxial connector (barrel), GND on the shield
+ Dimensions 25 x 82 x 90 [mm] (H x W x D )
+ Mounting method Separate box, “L” plates or DIN molding attachment
+ Weight 450 g

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Connector descriptions
Port 1 - DB9F
RS-232 Interface
1 - unused
2 TxD --> Transmit Data
3 RxD <-- Receive Data
4 -unused
5 GND --- System Ground
6 - unused
7 CTS <-- Clear to Send
8 RTS --> Request to Send
9 - unused
Note: Connector is wired for using the
prolong cable with PC, check careful
connector pinout for your cabling.
Relay pin descriptions
Pin Contact
1 CH1 A
2 CH1 B
3 CH2 A
4 CH2 B
Function of the contacts depends
on the supplied configuration. For
more about the contact types see
the end of this manual.
DIP switch descriptions
DIP 1 ON = RS-232 SETUP mode
OFF = Ethernet mode
DIP 2 PD4 input, ON = Log. 1
DIP 3 unused
DIP 4 unused

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Using the device
In the following chapter you will learn how to connect the device easily to your PC or company
network, configuring it according to your requirements and setting into service. At the end of this
document we describe controlling the device via NVT commands or IP Relay Control - the
controlling software.
Quick setup
The following process is recommended for a quick setup. For detailed description of all parameters
and commands see chapter called “Parameter description”.
Cable connection
Set DIP1 - DIP4 into OFF position
Connect the IP Relay into Ethernet 10 Mbit or 10/100 Mbit. For direct connection to a PC use a
crossed TP cable. For a connection to a hub/switch/router use classic TP patch cable.
If you wish to connect any RS-232 device to the IP Relay, connect it now, using the supplied Laplink
cable (RS-232 interface is at the DB9F connector).
Connect supplied power adaptor to the grid and plug the connector of the power adaptor into the IP
Relay’s power connector.
If the power supply is OK, the green Power indicator should light up.
If the connection to the Ethernet network is OK, the LINK indicator should light up and go down
according to the rhythm of the data transfer to the Ethernet network (Activity signalization).
Searching the device in a network
Run the application
„HerculesSetup.exe“ which can be
found in the root directory of the
supplied CD or at www.HW-group.com
1) Click the “Find modules” button
in the “UDP Setup” tab, you can
see the MAC address of the
device in the left column.
2) Click on the MAC address
3) Set the desired parameters (you
must at least set the IP address,
Mask and GateWay).
4) Check the “Enable TCP Setup”
box and click on the “Set
module”. This will save the
network parameters.
Note: If you wish to change these basic parameters (it is necessary to set at least IP address, port,
mask and GateWay), fill the parameters in the proper fields and press the “Set module”.
The device’s IP address and network parameters are now set and you can work with the device.

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Controlling the IP Relay with the IP Relay Control 1.2 software
IP Relay Control is software intended for easy testing and using the IP relay, which allows
controlling the relay’s contacts by NVT commands through a graphic environment. IPRC is a simple
utility, which does not require installation and besides the device controlling it also allows easy
management of more devices and realization of the Reset function.
Using the IPRC
Run the program “IPRelayControl.exe”
which can be found in the “IP Relay”
directory of the supplied CD or
downloaded from www.HW-group.com.
1) Press the “Search” button from the
“UDP Search” section.
2) Click on he MAC address.
3) The fields beneath the Search
button will be filled with the
configured parameters: IP address,
port and the device name (if
configured).
4) Pressing the “Use This” button will
transfer the IP address and port to
the “Connection” section.
5) If the required IP relay is not
available in the local network, its IP
address and port can be set
manually in the “Connection”
section.
6) By pressing the “Connect” button
set up the connection.
7) Set the proper relay configuration of
the corresponding device using the “Channel 1” and “Channel 2” switches (see the chapter
“Device Versions” at the end of this document). With changing the channels the pictures
representing the relay connection change as well (only if relay’s connected).
8) You can control the relay contacts by pressing the “Turn On”, “Turn Off”, “Close Contact” and
“Open Contact” (depending on the configuration used and the relay status).
9) Pressing the Reset button can change, for a short period of time (30 sec), the relay’s default
state. (The default state means default HW configuration of the IP relay).

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Controlling the IP Relay with HW Virtual Serial Port
Virtual serial port HW VSP includes simple functions for controlling the input/output binary lines of
the devices produced by Hwgroup such as I/O Controller and IP Relay. These additional functions
can be found in the Binary I/O bookmark of the HW Virtual Port Manager program. For more
detailed information about HW Virtual serial port see the
following chapter: HW VSP – Virtual serial port.
1. Install and run the HW VSP.
2. In the UDP Setup tab press the Search modules
button and choose a device’s MAC address from
the Modules MAC list window. The fields of the
Module parameters will be filled by data from the IP
Relay. Pressing the Use this IP button will load the
communication parameters into HW VSP.
3. Switch to the Binary I/O tap and then to the IP
Relay.
4. Pressing the Read Values button will load the
actual state.
5. The On and Off switches can define whether the
relay will be active for Channel 1 or Channel 2 ().
Writing is achieved by appropriate Set button.
While reading and writing there is an indication of
the communication state displayed in the down left
corner of the IP Relay’s window.
6. The Red LED field allows lighting up and turning down the red LED. Writing is achieved by a
proper Set button.
Warning: The buttons allow writing the state of the relay or LED separately. Changing state
of both Relay and LED at once is not possible!
•The Output types table represents the state of the relay’s outputs for its configuration in closed
and open state. (see chapter Device version)
•The item DIP2 displays the state of DIP2 switch, if the PD4 was preset to log. H.
SETUP troubleshooting
•No MAC address has appeared in the „Modules MAC list“ or the device doesn’t
communicate over Ethernet
•Check if the power supply adaptor is connected (the green Power indicator must be lit)
•Your Ethernet network must support 10 Mbit devices.
•Check if you are using the correct TP cable (TP Patch cable for a hub/switch/router
connection, crossed TP cable for direct PC connection.
•Check the configuration of DIP switches of the device (all should be in the OFF position). If
the DIP 1 is in the ON position, the device is in the RS-232 setup mode and does not
communicate over Ethernet. After switching the DIP 1 into OFF position it’s necessary to
restart the device by interrupting the power supply for at least 3 seconds.
•If you are using a firewall, check if it doesn’t block communication with the device.