PSB 2000 - ZSB 2000 EN

Intelligent Platform Concept

Ever since we began to develop digitalised control and safety technology, we have pursued a modern and flexible platform strategy. The Scheidt & Bachmann platform (PSB 2000) has been continuously developed since then and forms the basis for our BUES 2000 level crossing and the ZSB 2000 interlocking. It follows the concept of distributed intelligence and allows functions and hardware to be decoupled from each other and thus to react individually to the most diverse customer requirements.

The platform, consisting of:

▪ the hardware modules

▪ the associated firmware

▪ the operating systems and

▪ the generic basic software components,

is always identical and is used both for the BUES 2000 level crossing technology and for the DSTW ZSB 2000.

This common platform results in cost-optimising synergy effects, which help to simplify development, approval, production and spare parts supply. The same spare parts can be kept in stock for the maintenance of the DSTW ZSB 2000 and for the BUES 2000 level crossing technology. Thus, the amount of necessary spare parts is reduced, and maintenance staff can easily be trained on two very similar technologies.

The necessary and often very different functions and requirements of the markets are achieved by projecting the generic software. Thanks to the platform strategy, we are optimally equipped for the implementation of different market-specific requirements.

Minimise Operating Costs

During the development stage of the DSTW ZSB 2000, special emphasis was already placed on the use of modern and energy-saving technologies. For this reason, too, the separation of energy and information was consistently implemented in the control principle of the field elements.

For example, only LED signal heads were used right from the start, with the light point control being self-intelligent. The entire hardware of the DSTW ZSB 2000 was designed in such a way that it can be used without additional heating or air-conditioning equipment. The interlocking core itself has been optimised so that power consumption of less than 100 W is the norm. This means that the total power of a station (for example, a simple crossing station) with indoor and outdoor equipment is less than 0.4 kW.

/ IN TIMES OF SCARCE RESOURCES AND SKYROCKETING ENERGY COSTS, ENERGY-OPTIMISED SOLUTIONS ARE MORE IMPORTANT THAN EVER FOR FUTURE-ORIENTED TECHNOLOGY.

Life Cycle Cost – Optimised and Sustainable

For economic operational management, railway and infrastructure operators not only need low investment costs but also systems with optimized and sustainable life cycle costs. With this in mind, the question of the ability to supply spare parts (obsolescence) in order to achieve the expected service life of interlocking and level crossing systems has become an important issue in recent years, especially for digital systems in control and safety technology.

For technically safe components, we offer long-term backwards compatibility of our assemblies. Here, the constantly growing performance of digital components makes it possible to integrate future function extensions without any problems and to enable a pin-compatible replacement of old modules.

In order to be able to realise these two aspects, corresponding strategic framework conditions were already introduced in the basic design. The system architecture of the ZSB 2000 and BUES 2000 technology is based on a uniform platform strategy. With a strict separation of hardware and software, backwards-compatible and technologically permanently further developed modules ensure constant functional extensions and long-term operability.

For this purpose, we use the tools widely used in the semiconductor technology market. One of these is the FPGA (Field Programmable Gate Array), with the help of which the essential and critical components of our technology can be ’self-produced’ via self-programming. Delivery issues caused by component discontinuations can thus be specifically and permanently prevented. The approved system software can therefore be used and expanded in the long term.

Scheidt & Bachmann Signalling Systems GmbH

Breite Straße 132 ▪ 41238 Mönchengladbach Germany ▪ Phone +49 2166 266-628 signaltechnik@scheidt-bachmann.de www.scheidt-bachmann.de