Communication Solutions

for Wind Turbines

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Westermo was established in the early 70s. The head of ce

is located 150 km southwest of Stockholm, Sweden. During

these three decades the Westermo

company has grown into a company group with subsidiaries

in England, Germany, Norway, France and partners in over

30 countries around the world.

Westermo is today a well-known brand name in Industrial

Data Communications. Our 30 years of experience on the

industrial market goes far beyond our own products.

We know the problems that can occur in applications

installed in harsh industrial environments and therefore can

offer you optimal solutions both regarding functionality as

well as economy. All our products are specially designed to

operate reliably in harsh industrial environments and in

applications requiring high levels of reliability and availability.

Let Westermo be;

Your Natural Choice for Reliable Ethernet Solutions.

Westermo World Wide . . . www.westermo.com

Wind TurbinesWestermo has offered data communication solutions for wind turbines, both for land and offshore installations, for several years. The most common inter-face used today is Ethernet. Westermo can provide solutions from unmanaged switches up to our Bridge Link Concept which provides full link redundancy. This brochure shows some of the solutions we have installed worldwide.

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EthernetEthernet is the most common data communication standard used to-day. Westermo offers a wide product range, from unmanaged switches up to the fastest redundant ring switch on the market, regarding link recovery. Serial adapters, which make it possible to connect older equipment with a serial interface to an existing Ethernet network. We have both wireless solutions (WLAN) as well as products using SHDSL technique, that offers a high-speed connection on a copper cable. Our routers secure remote connection to an Ethernet network.

Remote AccessThe ability to create remote connections to equipment can provide companys with great savings both in time and money. Not only this, but improved customer service can also be offered. It is possible to control, monitor, update software or fault nd, irrespective of where the equipment is located, by means of a simple remote connection using the public telephone / ISDN network or wireless solutions via GSM / GPRS. Using our router provides a secure connection to an Ethernet network.

SHDSL, Short Haul ModemsOur short haul modems provide the possibility to connect equipment with a serial interface using a twisted pair copper cable over a long distance. This can either be a point to point or a multidrop installation. Using the SHDSL technique is it possible to achieve a data rate up to 2.3 Mbit/s giving the possibility to connect e.g. two different Ethernet networks via a long distance copper cable.

WirelessFor some reason it may not be possible to use a copper or a bre optic cable as a communication media. Westermo offers several wire-less options depending on the application and distance between the equipment. We can offer solutions using the common GSM / GPRS network, WLAN or radio modem using the standard frequency 869 MHz (Europe).

Fibre Optic ModemsThe main advantage of data transfer via bre is the bre cables complete insensitivity to external interference. This means the choice of bre cable is ideal for applications in environments exposed to high levels of interference. Data transmission using bre also provides bene ts such as high data rates over long transmission distances.

Westermo has a wide range of bre products for point-to-point, multidrop or redundant ring. Westermo also offers specially adapted products for different types of protocols.

Interface ConvertersThe RS-422/485 and 20 mA Current Loop are the standards for many of the industrial data communication systems installed over the last 20 years. The well-known industrial standards, PROFIBUS and Interbus use RS-485. The advantage of RS-422/485 is that connected devices communicate via a common bus, which promotes easy and cost ef-fective installation. Using RS-422/485 a high data rate is obtained over relatively long distances. Westermo products can be used for 2-wire or 4-wire connections, point to point or multidrop applications with up to 32 devices connected on the bus. Using a repeater the signal is regenerated, which allows further connected devices and increased transfer distances.

Westermo offers a wide range of products

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Serial

Fibre

Ethernet

Application

This is an installation in a single wind turbine using our unmanaged switches. Because of electrical interference in the tower, a ber optic link is used to secure communication from top to bottom. In the top, an EDW-100 is used to connect a serial device to the network. It is also possible to use a remote connection to collect data and control / monitor the system.

Products

EDW-100SDW-541ED-20

3 x TX

3 x TX

RS-232RS-422RS-485

ISDNPSTNGSM

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Serial

Fibre

Ethernet

Application

This is a similar installation to the one on the left. It requires more Ethernet ports and the client wanted to use SNMP, so the solution was to use our Lynx-series.

Products

L307-F1-MM-LC2ED-20

6 x TX

5 x TXISDNPSTNGSM

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Serial

Fibre

Ethernet

Application

This is a small windmill park with up to 7 towers. A ber optic star network is used from a centre to each tower. Either single or multimode cable is used depending on distances to the towers. A remote connection to the system is also possible, where the GSM modem provides the possibility to automatically send an SMS message in case of any link failure.

Products

U / R200-F7-MM-LC2SDW-541 / 532GDW-11ED-20

4 x TX

ISDNPSTNGSM

3 x TX

SMS Alarm

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Serial

Fibre

Ethernet

Application

In this installation all the towers are connected via a redundant ber optic ring. The R200 offers the possibility to have up to 200 switches in one ring. The R200 series is used because the installation requires three ber optic ports in each tower. To obtain higher reliability, all switches on ground level are supported with dual power supplies.

Products

R200-F3-MM-LC2SDW-541

4 x TX

5 x TX

NormalPowerSource

UPS

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Serial

Fibre

Ethernet

Application

This is an offshore instal-lation where seven towers are connected in two dif-ferent multidrop connec-tions. The tower furthest away is equipped with a camera directed back-wards towards the other towers for supervision. For ef cient use of band-width, all data concerning control of the towers is on VLAN 1 and the video data is on VLAN 2. In this installation copper cable is used for communication between the top and bottom of each tower.

Products

L408-F2-SM-LC15L406 / SDW-550

VLAN 1

VLAN 1 VLAN 1

VLAN 2

VLAN 2

VLAN 2

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Serial

Fibre

Ethernet

Application

This is an offshore installa-tion where highest possi-ble reliability was required. It is based on a backbone located in a centre, to which up to six sub rings can be connected via our bridge link concept. All towers in the sub rings are connected in a redun-dant ring where two of the towers are equipped with R200 to obtain the bridge link functionality. This solution offers full redundancy both in case of hardware (switches) or a link failure.

Products

R200L300GDW-11ED-20

Router / PSTN

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SMS Alarm

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Serial

Fibre

Ethernet

Bridge Link

The backbone ring switches can be mounted in a cabinet and connec-tion between the switches is done with copper cables to create a redundant ring. The software is the same in all switches. The functionality is decided by con guration of the switch to act either as a focal point or ring member and also in the sub rings to identify which ports should act as a primary and secondary connection to the backbone.

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Serial

Fibre

Ethernet

Bridge Link

Member switches (L1-2 and L1-4) in the sub rings are con gured with 5TX and 3FX ports. Two ber ports are used to create the ring and one is con-nected to the switch in the top of the tower. The bridge switches (L1-1 and L1-3) are con- gured with 4TX and 4FX. The fourth ber transceiv-er is used to connect the sub ring to the backbone. Switches L1-1 and L1-3 administrate whether the primary (P1) or secondary (S1) link should be active.

Redundant Sub-ring

P1: Primary Link to Backbone

S1: Secondary Linkto Backbone

L1-1

L1-2

L1-3

L1-4

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Serial

Fibre

Ethernet

Bridge Link

Any failure in hardware (switches) or at any ber optic link will be seen as a single fault and the data traf c will be rerouted to the secondary switch/link. Using the R200 assures link recovery within 30 ms independently of the number of switches in the ring or network load.

Redundant BackboneCopper or Fibre Optic Cable

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Serial

Fibre

Ethernet

Bridge Link

There is no limitation to the number of sub rings that can be connected to the back bone. It is only a matter of the number of switches in the backbone. Two R200 devices can handle up to 6 sub rings, 4 can handle up to 12 sub rings. Just add a pair of R200 devices to the backbone and 6 more sub rings can be connected.

Redundant BackboneCopper or Fibre Optic Cable

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Order inform

ation Lynx

L1108-F2-MM-LC2

Type of connector and distance of the transceiver

Multimode, Singlemode or BIDI transceiver

Number of fibre ports (1 or 2)

Total number of ports (6, 7 or 8)

Environmental approvals0 = Industrial1 = Marine2 = Rail3 = SA, Substation4 = Military

Level of functionality1 = Harsh environments3 = Redundant Ring4 = High Security Applications

Lxxx = 10 / 100 MbitL1xxx = 10 / 100 / 1000 Mbit

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U208-F2-MM-LC2

Type of connector and distance of the transceiver

Multimode, Singlemode or BIDI transceiver

Number of fibre ports (1 - 8)

U = UnmanagedR = RingT = Time Syncronisation

Model

SDW-541-MM-LC2

Type of connector and distance of the transceiver

Multimode, Singlemode or BIDI transceiver

550 = 5 TX ports541 = 4 TX and 1 FX532 = 3 TX and 2 FX

Model

SwedenWestermo Teleindustri ABSE-640 40 Stora Sundby, SwedenPhone: +46 (0)16 42 80 00Fax: +46 (0)16 42 80 01info@westermo.sewww.westermo.com

S U B S I D I A R I E S

United KingdomWestermo Data Communications LtdTalisman Business CentreDuncan Road, Park Gate, Southampton. SO31 7GAPhone: +44(0)1489 580 585Fax: +44(0)1489 580 586sales@westermo.co.ukwww.westermo.co.uk

GermanyWestermo Data Communications GmbHGoethe Strasse 67DE-68753 Waghusel. GermanyTel: +49(0)7254 95400-0Fax: +49(0)7254-95400-9info@westermo.dewww.westermo.de

FranceWestermo Data Communications S.A.R.L.Bat. A, 9 Chemin de ChillyFR-91160 Champlan. FranceTl : +33 1 69 10 21 00Fax : +33 1 69 10 21 01infos@westermo.frwww.westermo.fr

NorwayWestermo OnTime ASGladsvei 20 0489 Oslo, NorwayPhone +47 220 903 03 Fax +47 220 903 10E-mail: contact@ontimenet.comH E A D O F F I C E

Produced by Westermo Teleindustri AB. Photo: Future Images Bank, Carl De Bruin. Printed by Eskilstuna Offset AB, Sweden 2006