Hydronix Ethernet Adapter User manual

Ethernet Adapter
User Guide
To re-order quote part number:
Revision:
Revision date:
HD0333
2.1.0
May 2012

2 Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0
Copyright
Neither the whole or any part of the information contained in nor the product described in this documentation may
be adapted or reproduced in any material form except with the prior written approval of Hydronix Limited,
hereinafter referred to as Hydronix.
© 2012
Hydronix Limited
7 Riverside Business Centre
Walnut Tree Close
Guildford
Surrey GU1 4UG
United Kingdom
All rights reserved
CUSTOMER RESPONSIBILITY
The customer in applying the product described in this documentation accepts that the product is a
programmable electronic system which is inherently complex and which may not be completely free of errors. In
doing so the customer therefore undertakes responsibility to ensure that the product is properly installed
commissioned operated and maintained by competent and suitably trained persons and in accordance with any
instructions or safety precautions made available or good engineering practice and to thoroughly verify the use of
the product in the particular application.
ERRORS IN DOCUMENTATION
The product described in this documentation is subject to continuous development and improvement. All
information of a technical nature and particulars of the product and its use including the information and
particulars contained in this documentation are given by Hydronix in good faith.
Hydronix welcomes comments and suggestions relating to the product and this documentation
ACKNOWLEDGEMENTS
Hydronix, Hydro-Probe, Hydro-Mix, Hydro-Skid, Hydro-View and Hydro-Control are Registered Trade Marks of
Hydronix Limited

Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 3
Hydronix Offices
UK Head Office
Address: 7 Riverside Business Centre
Walnut Tree Close
Guildford
Surrey
GU1 4UG
Tel: [phone]
Fax: [phone]
Email: [e-mail]
[e-mail]
Website: www.hydronix.com
North American Office
Covers North and South America, US territories, Spain and Portugal
Address: 692 West Conway Road
Suite 24, Harbor Springs
MI 47940
USA
Tel: [phone] (Toll Free)
[phone]
Fax: [phone] (Toll Free)
[phone]
European Office
Covers Central Europe, Russia and South Africa
Tel: [phone]
Fax: [phone]
French Office
Tel: [phone]

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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 5
Revision history
Revision No.
Date
Description of change
1.0.0
December 2007
First Draft
2.0.0
January 2008
First edition released
2.1.0
May 2012
Product references updated

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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 7
Table of Contents
Chapter 1 Introduction...........................................................................................................................13
Chapter 2 Connecting with Sensors .....................................................................................................15
1Installation ..................................................................................................................................15
2Connections ...............................................................................................................................17
3Indicator Lights...........................................................................................................................18
4Programming..............................................................................................................................19
Chapter 3 Connecting with Hydro-Control VI........................................................................................21
1Introduction.................................................................................................................................21
2Installation ..................................................................................................................................21
3Connecting with Hydro-Control VI..............................................................................................23
Chapter 4 Configuring the Ethernet Adapter.........................................................................................25
1Ethernet Adapter defaults ..........................................................................................................25
2Finding an Ethernet Adapter automatically................................................................................25
3Adding an Ethernet Adapter manually .......................................................................................26
4Changing the Ethernet Adapter IP Address...............................................................................27
5Remote (Internet) Connection....................................................................................................27
Chapter 5 Technical Specifications.......................................................................................................29
1EA01 Ethernet Adapter ..............................................................................................................29
2EPA01 Ethernet Power Adapter.................................................................................................29
3EPI01 Ethernet Power Injector...................................................................................................29
4Terminal Identification................................................................................................................30
Chapter 6 Fault Finding.........................................................................................................................33
1Ethernet Adapter EA01 ..............................................................................................................33
2Ethernet Power Adapter EPA01.................................................................................................33
3Ethernet Power Injector EPI01...................................................................................................34
Appendix A Declaration of Conformity..................................................................................................35

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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 9
Table of Figures
Figure 1: Ethernet Adapter Kit Connections .........................................................................................13
Figure 2: Connections for Ethernet Adapter only..................................................................................15
Figure 3: Connections for Ethernet Adapter and Power Adapter .........................................................16
Figure 4: Maximum number of sensor connections dependent upon ambient temperature ................17
Figure 5: Connecting the Ethernet Adapter to Hydro-Control VI ..........................................................21
Figure 6: Connecting the Ethernet Adapter to Hydro-Control VI with Power Over Ethernet Option ....22
Figure 7: EA01 Terminal Identification..................................................................................................30
Figure 8: EPA01 Terminal Identification ...............................................................................................31

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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 11
Kit Contents
A – Ethernet Adapter – EA01
B – Ethernet Power Adapter – EPA01
C – Ethernet Power Injector – EPI01
D – IEC Mains Cable
E – Ethernet Patch Cables x 3
Order Options:
Ethernet Adapter Kit Part Number: EAK01
Comprises: Ethernet Adapter, Ethernet Patch Cable (0.5m), User Guide, CD
with Hydro-Com software and User Guide
Use: Use with external 24V power supply
Ethernet Power Adapter Kit: Part Number: EPK01
Comprises: All the above plus Ethernet Power Adapter, Power Injector, IEC
mains cable and 2 additional Ethernet Patch Cables
Use: Provides power and Ethernet connection over standard CAT5e
cable
A
B
C
D
E

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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 13
Chapter 1 Introduction
The Hydronix Ethernet Adapter provides a simple method of network enabling Hydronix products. The
Adapter is a small DIN-rail mounted unit that converts packets received over an Ethernet (TCP/IP)
network to RS485 or RS232. This enables a host PC elsewhere on the network to communicate with
sensors using Hydronix Hydro-Com software. Remote configuration and control of a Hydro-Control VI
unit is also possible.
An option of using Power over Ethernet is available via a second small DIN-rail module to eliminate
the need for a local 24V supply for the sensors.
Figure 1: Ethernet Adapter Kit Connections

Introduction Chapter 1
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Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 15
Chapter 2 Connecting with Sensors
1 Installation
Depending on the installation option chosen, the system should be set up as shown in the
diagrams below. Terminal identification for each module is shown later in this chapter. In order to
maintain compliance with the relevant product directives, this equipment should only be installed
and used with the approved components supplied by Hydronix. Unauthorised modifications to
the units could void the units compliance and invalidate the users right to use the equipment.
1.1 Ethernet Adapter Only (EA01)
The most basic setup uses only the Ethernet Adapter and is arranged as shown below:
Cable To Sensor
Black
RS/485 A
RS/485 B
0v DC
24v DC
Colour
White
Black
Red
MILSPEC
F
G
B
A
EA01
Ethernet
Adapter
1
24v DC
Power Supply
0v 24v
10/100baseT
CAT5e
Ethernet
to network
Figure 2: Connections for Ethernet Adapter only
1.1.1 Location of the Ethernet Adapter (EA01)
The Ethernet Adapter should be mounted in the wiring junction box as close to the sensors
as possible, and protected from water and excessive dust. The Ethernet Adapter (EA01)
should be installed in such a manner as to prevent electro-static discharge to the Ethernet
“IN” port. Such a discharge may cause the unit to lock up and require a power “OFF –
ON” cycle to restore performance.
Connect the Ethernet drop cable from the network connection to the Ethernet port of the
Adapter. Connect a 24V dc supply to the 24V+ and 0V input terminals of the Ethernet
Adapter, ensuring that the power supply and wire is of a sufficient power rating to carry the
power for the number of sensors connected
Connect the RS485 sensor cable to the Ethernet Adapter outputs, taking care to note the
recommendations in the RS485 Wiring Recommendations later in the chapter.

Connecting with Sensors Chapter 2
16 Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0
1.2 Power over Ethernet (EPK01)
To eliminate the need for a local 24V supply for the adapter and sensors, the optional Power
over Ethernet kit can be used. The arrangement is as shown below:
Junction box close to sensorsControl Room Cabinet
Cable To Sensor
Black
RS/485 A
RS/485 B
0v DC
24v DC
Colour
White
Black
Red
MILSPEC
F
G
B
A
EPA01
Ethernet
Power
Adapter
1
EA01
Ethernet
Adapter
1
10/100baseT
CAT5e
linking
EPA01 and
EA01
EPI01
Ethernet
Power
Injector
OUT IN
IEC Mains
Cable
100-240v
50-60Hz
10/100baseT
CAT5e
Ethernet
to EPI01
10/100baseT
CAT5e
Ethernet
to EPA01
10/100baseT
CAT5e
Ethernet
to Network
Figure 3: Connections for Ethernet Adapter and Power Adapter
1.2.1 Location of the Ethernet Power Adapter (EPA01)
The Power Adapter Module (EPA01) should be mounted in the wiring junction box close to
the sensors and beside the Ethernet Adapter, protected from water and excessive dust.
Connect the Ethernet drop cable from the router to the IN port of the Power Adapter. This
cable carries both the power and the Ethernet communications signals. Connect a short
Ethernet cable from the OUT port of the Power Adapter to the Ethernet port on the
Adapter. This cable carries only the Ethernet communications. Connect short insulated
wires from the 24V+ and 0V outputs of the Power Adapter to the 24V+ and 0V inputs of
the Ethernet Adapter, ensuring that the wire is of sufficient power rating to carry the power
for the number of sensors connected.
Connect the RS485 sensor cable to the Ethernet Adapter outputs, taking care to note the
recommendations in the RS485 Wiring Recommendations later in this chapter.
Sufficient ventilation and cooling should be employed to keep the air temperature around
the unit to a suitable level for the number of sensors being powered. The diagram below
shows the number of sensors that can be used at different air temperatures for each
sensor type.

Chapter 2 Connecting with Sensors
Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 17
Figure 4: Maximum number of sensor connections dependent upon ambient temperature
NOTE: Operation above these limits may cause premature failure of the unit.
1.2.2 Location of the Power Injector Module (EPI01)
The Power Injector Module (EPI01) should ideally be located in the computer room or
network cabinet close to the router. Identify which drop cable runs to the sensor location,
and using a short patch cable insert the Power Injector into that cable, connecting the port
labelled IN to the router output and the port labelled OUT to the drop cable. Connect a
240V or 110V mains supply to the Power Injector.
Note: The Power Injector Module can supply sufficient power for up to three Hydronix
sensors (or 4 Hydro-Probe II sensors). If more sensors are to be connected to the network,
then a separate power supply local to the sensors should be used instead of the Power
over Ethernet solution.
2 Connections
2.1 Wiring Connections
2.1.1 Ethernet Adapter sensor connections:
Ethernet Adapter Terminal Signal
Description MIL Spec pin
number on sensor
Wire Colour in
standard Hydronix
0090A cable
1
24V + input
2
0V input
3
24V + to sensor
A
Red
4
0V to sensor
B
Black
5
RS485 B
G
Black
6
RS485 A
F
White
The white and black are from one twisted pair and the red and black from another.
HydroProbe II
0
1
2
3
4
5
010 20 30 40 50 60 70 80
Maximum Air Temperature
Number of Sensors

Connecting with Sensors Chapter 2
18 Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0
2.1.2 Ethernet Power Adapter connections:
Ethernet Power Adapter Terminal
Signal Description
1
0V output
5
24V + output
2.2 RS-485 Wiring Recommendations
The performance and reliability of a RS485 network can depend significantly on the quality
and design of the wiring used. It is recommended to use 24AWG twisted pairs with a
characteristic impedance (Zo) of 100R – 120R. Ideally, sensors on a RS485 network should
be connected in a daisy chain arrangement, as shown here:
This arrangement uses just one of the sets of sensor outputs on the Ethernet Adapter. In
practice, this arrangement is hard to achieve, so sensors may be wired using very short stubs:
Although the Ethernet Adapter has multiple sets of sensor outputs, wiring in a star
configuration with each sensor wired to an output set should be avoided if at all possible.
3 Indicator Lights
The Ethernet Power Adapter unit (EPA01) has a single red indicator light on the top, which
indicates that it is supplying power. It must be connected to an Ethernet cable with an 802.11af
compliant Power Injector supplying it.
The Ethernet Adapter (EA01) has three indicator lights on the top. The red indicator illuminates
when a suitable 24V supply is connected. The transmit indicator light blinks when data is
received by the Adapter and is being sent to the sensors. The receive indicator light blinks when
data is received from the sensors and is being sent over the Ethernet to the host system.
Additionally, the green indicator light above the network connector indicates that a network
connection has been established, and the yellow indicator blinks when network data is sent or
received

Chapter 2 Connecting with Sensors
Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0 19
4 Programming
An installation using the Ethernet Adapter packs the messages sent from a Host to the Sensor
into an Ethernet data packet, which is then unpacked by the Ethernet Adapter and converted into
RS485 voltage levels. If a custom application is being written to communicate with Hydronix
sensors over the Ethernet, then the Hydro-Link communications protocol should be implemented
and the resulting message string sent over the network to the Ethernet Adapter (instead of a
serial port). In Visual Basic (VB6) this is done using a WinSock control and in Visual Studio .NET
this can either be done using a Sockets control or a TCP Client control. A connection should be
made from the Winsock or TCP Client control to port 10001 on the Adapter.
Further information on these controls can be found in the programming system documentation.
Although Hydronix is able to provide guidance they may be unable to give detailed technical
support for developing custom software applications.
Hydronix are currently developing a Class Library for .NET to implement all of the
communications functionality including support for the Ethernet Adapter, which will be available
upon request. For details of this and more information on the Hydro-Link Communications
Protocol please contact Hydronix Technical Support ([e-mail])

Connecting with Sensors Chapter 2
20 Hydronix Ethernet Adapter User Guide HD0333 Rev 2.1.0