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Innovations Trackguard® Sinet and SigridNetwork communication and energy supply in the area of signalling control

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In addition to the modernisation of the architecture, infrastructure operators can also expect savings in investment costs and life cycle costs (LCC). The following aspects stand out particularly in this regard:■ Secure communication using

standardised procedures and in-terfaces

■ Modularisation of signalling con-trol systems

■ Unifying of interfaces to the mod-ule level

Central signalling con-trol architecture today

The control devices (for example, a control component for signals) are located together with the signalling control computers mostly inside the indoor compartment. Each field ele-ment is connected with a separate point-to-point connection to the sig-nalling control indoor compartment. This connection carries both control information and power. To this day,

the connection of field elements in star formation corresponds with the proven state of the art and has the following properties:

■ Limited cable path/signalling dis-tance between the signalling con-trol indoor compartment and the field element (maximum 6.5 km)

■ Largely proprietary interfaces to the field elements

■ Extensive cabling required for the separate links of the field elements

Decentralised signal-ling control architec-ture tomorrow

Each item of outdoor equipment is connected via a communications bus and a power bus. The Element Controller (EC) placed near the corresponding field elements will be flexibly connected to both bus systems on site. This architecture enables the control and monitoring of the various field elements.

........ ..... Controldevices

Field element(e.g. signal)

InterlockingComputer

Electricalsupply

OperationsControlSystem

Diagnosis

Other control devicesOther control devices

Indoor

Outdoor

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om

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Simplified representation of the current struc-ture of an electronic signalling control system with focus on the integration of the field ele-ments and field wiring in star formation.

........ ........

Power bus

Communication bus (operating and diagnostics)

Elementcontroller

To additional elementcontrollers and fieldelements

Indoor

Outdoor

InterlockingComputer

Electricalsupply

OperationsControlSystem

Diagnosis

Field element(e.g. signal)

Our concept for an integrated, decentralised signalling control architecture by Sinet and Sigrid

Level crossing systemSignal

Redundant fibre optic backbone

Power bus

Axle counter

In the future, signalling control architectures can be designed to be significantly more flexible and cost-effective. This is made possible by the use of new technologies in the area of communications and power supply.

With the highest priority, the communication bus ensures transmission of the operational data (commands and messages between the signalling control computer and the element controller) in real time. In addition, transmit-ted diagnostic information forms the basis for efficient fault management and rapid troubleshooting. It’s new that the element controllers are connected to a separate power supply. The separation of power and communica-tion enables flexible topologies and raises the system to be set up into a higher class of availability.

Trackguard Sinet, the communication to the field elements

Trackguard Sinet is an innovative, real time capable, highly available wide-area communication system for the electronic signalling control systems from Siemens. The transmission technologies (media, protocol) can be flexibly adapted to the respective requirements. Sinet networks are designed so that each element controller is redundantly connected to the signalling control.

The principal features of Sinet

■ Real-time capable IP-based communication between the signalling control computer and the element controller

■ Situation-optimised choice of transmission media such as optical fibre backbones for long distances and SHDSL field rings for the local opening within a station

■ Use of field rings within a station or on sections of a few kilometres to minimise cable requirements

■ Integrated redundant IP communication from the signal-ling control computer to the element controller (e.g., MSTT signal, switch, axle counters, level crossing system)

■ Wide use of standard communication components such as Ethernet switches and use of existing telecommuni-cations networks

■ In the migration phase, coexisting central control ele-ments and new decentralised element controllers can be used

■ Elimination of hitherto existing distance constraints between the signalling control indoor unit and field elements

Trackguard Sigrid, the power supply for the field elements

As a further component of a decentralised architecture and an expansion of the Sinet communication architec-ture, Siemens has achieved with Trackguard Sigrid a modern and decentralised power supply concept.

A power bus with a distributed supply, in combination with intelligent, decentralised power controllers, guaran-tees high-availability power feed for the peripheral field elements.

The principal features of Sigrid

■ Uniformly redundant power supply via a DC bus with small cable cross-sections

■ Seamless integration with Sinet■ High selectivity for short-circuits and ground faults

in the external system through UI monitoring directly at the field element

■ Load balancing through multiple feeds and use of energy buffers

Point machine

Signal withtrain protection

Redundant fibre optic backbone

Power bus

Power feed

Siemens Switzerland Ltd Mobility Division Hammerweg 1 8304 Wallisellen Switzerland

Tel.: +41 585 580 111 Fax: +41 585 585 501 www.siemens.ch/mobility

Order-no.: A 19100-V010-B123-X-7600 | HTS 9087/314 © Siemens Switzerland Ltd, August 2014

Printed in Germany | Subject to change

Advantages for the customer

Investments■ Low number of signalling control buildings connected with less effort

in the building infrastructure (e.g., air conditioning and power supply)■ Possibility of centralising the signalling control computers■ Lower cable costs; optional reuse of existing cables■ Simplifications in installation, testing and commissioning■ Save investment thanks to backward compatibility (mixed operation

possible with today’s technology)

In operation■ High availability of the overall system by consistently redundant

connection of the field elements■ Optimized energy consumption, lower power dissipation■ Easier adaptation of existing structure in reconstructions and

extensions

Maintenance■ Rapid fault localisation through selective diagnosability■ Fast replacement of defective modules thanks to plug-and-play

concept■ Lower maintenance and repair costs through advanced diagnostic

capabilities■ Consistent, web-based diagnostics for both local and remote access

Siemens Ltd Mobility Division Nonnendammallee 101 13629 Berlin Germany

Siemens Interlocking Network (Sinet) is a real-time capable, high-availability wide-area communication system for the signaling and monitoring level of Siemens electronic interlockings. Specially developed for the railway environment, the intelligent Sinet Communication Unit (SCU) is the basis for creating a communication network for the field level.

Features

Railway-compatible communication using telecom standards The «track-side» communication technology is based on proven SHDSL technology as widely used in the telecom industry. Thanks to additional implementation of the Par-allel Redundancy Protocol, a loss of redundancy has no im-pact on the functioning of the interlocking (zero switcho-ver time). Operating (e.g. track switching) and diagnostic data is transmitted together in the SHDSL ring. The SCU ensures the time-critical operating data is transmitted in real-time by means of a priority scheduler.

Plug and Play for easy maintenance The SCU’s entire configuration is stored on a SD card. If a unit fails, the SD card just needs to be inserted into the new device. Once it has been started up, the correct functions are available immediately.

Flexible configuration All key SCU network parameters, such as the IP address or a unique device identifier, are configurable. Furthermore, settings relevant to the data network’s topology can also

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be configured. For instance, it is possible to configure the baud rate to enable SHDSL communication to take place between SCUs with different cable distances within a field ring.

Local and remote diagnostics LEDs on the unit show the status of the primary and the redundant network. Alternatively, a service notebook can be connected to the diagnostics port (Ethernet) to access the diagnostic data of the particular unit as well as all other units on the network.

Web-server technology for diagnostics & configuration A web server is integrated in the SCU for unit configura-tion and diagnostics. A standard web browser (Internet Explorer, Opera, etc.) on a notebook or tablet PC is used to access the unit for programming and inspection.

Multi purpose auxiliary contacts Each SCU has two configurable floating inputs and out-puts. One or more of the inputs on a SCU can be switched to an output or another SCU. Thus allowing, among other things, the auxiliary contact of a local automatic circuit breaker to be transferred to the relevant indoor interlock-ing equipment for analysis.

Robust design to withstand a wide range of temperatures The robust housing is designed for top-hat rail mounting. All the Ethernet ports feature RJ45 connectors while the other ports are all equipped with unmistakable Phoenix FMC connectors.

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Sinet Communication Unit SCUEfficient communication architecture for interlocking systems

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Technical Data Field transmission distance

SHDSL Max. 5 km at 2 Mbit/s between two SCUs

Transfer speed

Ethernet 10 or 100 MBit/s configurable

SHDSL 1, 2 or 5 Mbit/s configurable

Electrical connectors

Field ring (LAN A and B) 2 x Ethernet (RJ45)/SHDSL

EC (traffic data) Ethernet (RJ45)

Diagnostics port Ethernet (RJ45)

Digital inputs and outputs Two floating inputs and outputs each

Power supply 24V DC

Grounding Via top-hat rails, or alternatively via FASTON tabs

Removable media

Programming Stored on SD card. Remote access possible

Data connectors

Unit power consumption 5 Watt @ 24V DC

Digital inputs 24V DC, on current = 5 mA, 2 kV insulation

Digital outputs Open collector, 0.2 A, 2 kV insulation

Dimensions and weight

Dimensions (WxHxD) 49x150x125 mm

Weight 0.80 kg

Standards

EMV EN 50121-4

Environment EN 50125-3

Insulation EN 50124-1

Ambient conditions

Operating temperature – 40°C ... + 70°C

Storage temperature – 40°C ... + 70°C

Protection system IP20

Siemens Switzerland LtdMobility DivisionHammerweg 18304 WallisellenSwitzerland

Tel.: +41 585 580 111Fax: +41 585 585 501www.siemens.ch/mobility

Order no.: A 19100-V010-B114-X-7600 / HTS 9078/314Printed in Switzerland/Subject to revision© Siemens Switzerland Ltd, August 2014

The newly installed Trackguard Simis W signalling control system at SBB uses the new Trackguard Sinet communication architecture from Siemens.

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The Simis W signalling control system automates a one-track route with seven stations and four stops over a length of about 30 kilometres. The outdoor system con-tains 66 MSTT signals and 30 LCM200 crossings, which are developed using Sinet technology with a total of eight field rings.

In order to build inter-station field rings, the field rings installed in the Tösstal will be initially connected via the redundant SDH network of SBB with the signalling control computers. The main interlocking building is located in Saland.

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First time application of Trackguard® Sinet at SBBProject Tösstal

Kollbrunn Rikon Rämis-mühle-Zell

ACC ACC

IIC/OMC

ACC ACC ACC

Turbenthal Wila Steg GibswilSaland Bauma Fischenthal Wald

Signalling control computer

Sinet field ring with SDH network (SBB)

-12.5 km -9.7 km -7.6 km -5.3 km -3.1 km 0.0 km 4.0 km 8.7 km 11.2 km 13.6 km 18.5 km

Stations

Ethernet

SDH backbone

SDH router

SHDSL field ring

Signalling control computer

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Siemens Switzerland Ltd Mobility DivisionHammerweg 1 8304 Wallisellen Switzerland Tel.: +41 585 580 111 Fax: +41 585 585 501www.siemens.ch/mobility

Order-no.: A 19100-V010-B124 -X-7600 / HTS 9088/314Printed in Germany / Subject to change© Siemens Switzerland Ltd, August 2014

Implementation strategy

Given the high innovation content of Sinet, Siemens and SBB agreed to a gradual introduction of the new architecture. First, as from the end of 2012 we verified the new communication technology along one of the most frequently travelled routes in the greater Zurich area.

After demonstration of readiness for use, in October 2013 the second step fol-lowed in Sevelen (Canton of St. Gallen). There, 12 signals and three level cross-ings were equipped with the new technology and put into commercial operation with full safety responsibility.

In the Tösstal, we are now deploying the new technology in conjunction with the SDH backbone of SBB for the first time. This allows low-cost and high-uptime deployment of the new technology over large distances (e.g. between multiple stations). On 30th September 2014, the first stage of the Tösstal signalling con-trol system will enter commercial operation.

Migration

In the development of Trackguard Sinet, a main focus was on migration. For example, decentralised technology for signals and level crossings can be used in parallel with today’s conventional point-to-point interfaces for switching, track vacancy detection, etc.

The interlockings in the Tösstal to date consist of ten electro-mechanical signalling control systems and a relay signalling control system. With the new technology, the entire line will be fully automated by a single electronic signal-ling control system with four remote sites.

First experiences with the new technology

The current in-service systems have been functioning safely and reliably since they went into operation.

For the first time it is possible to perform remote diagnostics right up to signals and level crossings. If there is a fault, the maintenance team can analyse the cause promptly and thus significantly reduce the mean time to repair.

Initial tests for other services, such as a video stream transmission with Sinet, are promising.

Based on the newly tested project configuration processes, full completion in 2015 will already be business as usual for those involved in the projects.

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Trackguard Sinet Annaberg-Buchholz Süd Pilot Project Efficient communication architecture for interlockings

On November 28, 2013, the Trackguard Sinet system was successfully commissioned on schedule, being the first Ethernet network for signal control in an electronic interlocking of German Railways.

After successful piloting of the Simis D interlocking platform in 2005, the Erzgebirge line at Annaberg-Buchholz Süd in Saxony's Erzgebirge region is another network which has commissioned a trend-setting interlocking configuration for the first time.

The highly available, IP-based communication architecture for interlockings has been installed with the involvement of the German Federal Railways Office (EBA), German Railways' Network Operations Division (DB Netz AG) and Erzgebirgsbahn and is the first major milestone on the way towards creating a standardized interlocking architecture within DB Netz AG's network.

This system is already in operation and has been developed by Siemens exclusively. It runs under full safety responsibility and has been approved by the German Federal Railways Office.

Trackguard Sinet is an important technological step into the future since it now enables field elements such as signals, points, etc., to be integrated into an interlocking system using Ethernet, both simply and efficiently. It also permits high-performance remote diagnostics through to each field element.

The next step within the project which is already in the process of execution is the implementation of standardized interfaces for the activation of signals, points and axle counters within the context of readjustment of DB Netz AG's production control (NeuPro).

The project thus generates key impulses with regard to readjustment of DB Netz AG's control and signaling technology.

Scope of piloting project• Set-up of the extended network capability of interlocking elements• Decentralized element controllers, e.g. for signals• Removal of the physical interconnections between the indoor and outdoor equipment of interlockings and thus removal of conventional control distances• Provision of highly available, real-time-capable communication architectures (Ethernet basis; IP-based communications) for fail-safe applications in decentralized interlocking architectures • Network-capable control, monitoring and diagnostics of the system• Demonstration and approval of the connection of safety-related applications via conventional network infrastructures (telecommunication networks)• Demonstration of the migratability of the installed interlocking technology and its combinability with new architectures (investment security)

The information in this document contains general descriptions of the technical options available. The required features should therefore be specified in each individual case at the time of closing the contract. For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action and integrate each component into a holistic, state-of-the-art security concept. Third-party products that may be in use should also be considered.

Trackguard® is a registered trademark of Siemens AG.

Siemens AG Mobility Division Nonnendammallee 101 13629 Berlin Germany www.siemens.com

© Siemens AG 2014 Printed in Germany 312256 PA 08142.0 Dispo 01000 Order No. A19100-V010-B125-X-7600 / HTS: 9089/314

Project timescale• September 2012 Order award by German Railways during the InnoTrans fair• November 2012 Presentation of the technical solution • July 2013 Functional demonstration on site (Annaberg-Buchholz Süd electronic interlocking)• November 2013 Approval and commissioning of the IP network and decentralized element controllers

Project scope• Decentralization of element controllers• Set-up of a fiber-optic cable communication backbone• Implementation of network field rings in the outdoor equipment

Communication architecture in the Annaberg-Buchholz Süd electronic interlocking project

Redundant fiber-optic cable backbone

Field ring 2

Field ring 1

Decentralized element controllers and points of service