zentrak OBJECT CONTROLLER PLATFORM
The intelligent digital interface between your interlocking and field assets. Built on proven secure and safe railway DNA.
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voestalpine Railway Systems
Suggested questions
Standardization that actually simplifies
EULYNX defines a single, standard interface layer between the interlocking and every field asset. The Object Controller is the field-side implementation – meaning you integrate once, not once per project.
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One validated interface and communication model reused across all projects. No more proprietary connectors rebuilt from scratch for every installation.
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Standardized interfaces break vendor lock-in. Customers can choose the best supplier for each asset type, procure more freely, and migrate without redesigning the whole system.
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Every Object Controller continuously generates operational data – point motor currents, fault indicators, condition trends. The foundation for predictive maintenance and digital asset management.
Where it sits in your signalling architecture
The Object Controller sits between the interlocking and the physical field asset. The interlocking decides what should happen – the Object Controller safely executes, supervises, and reports what happens in the field.
EULYNX defines four standardized interface families – SCI control, SDI diagnostics, SMI maintenance, SSI security – and the zentrak OBJECT CONTROLLER PLATFORM implements all four natively, not as a retrofit.
RECEIVES
- Commands
- Control requests
- Configuration
EXECUTES
- Actuation
- Monitoring
- Safety supervision
RETURNS
- Status data
- Diagnostics
- Fault reports
One platform. Five types.
The hardware, firmware, safety execution environment, cybersecurity framework, and diagnostics architecture are shared across all five types. Only the application-specific logic differs – which means reduced maintenance overhead, fewer spare-part variants, and consistent operation across every asset type.
- Reduced maintenance complexity and spare-parts diversity
- Consistent security posture across every field element type
- Faster staff training – same platform, different application
- Faster certification times for your Generic Application
- zentrak UniAC[2] – Train Detection
- zentrak UNIOC P – Point Control
- zentrak UNIOC LS – Light Signals
- zentrak UNIOC LC – Level Crossings
- zentrak UNIOC IO – Generic I/O
Proven railway safety DNA
Built on years of certifying and operating SIL 4 axle-counting technology – not a generic industrial controller adapted for rail.
EULYNX from the ground up
The architecture is built around EULYNX core principles, not retrofitted onto an existing product with EULYNX interfaces bolted on.
Security by design
Cryptographic protection and cybersecurity mechanisms are built into the platform from day one, applied consistently across every product variant.
Conventional and modern
Works with today's conventional interlockings and is engineered to support full EULYNX interfaces when you are ready to migrate.
Built for decades, not delivery
Engineering, validation, diagnostics, security updates, and obsolescence management are designed in from the start – not added later.
First certified milestone
zentrak UNIOC P: first EULYNX Baseline 4 Release 3 Object Controller Point in Europe with CENELEC SIL 4 certification from TÜV SÜD.
Questions we hear often
Honest answers to the questions infrastructure managers and procurement teams ask most.
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It adds a physical component, but not necessarily operational risk. Modern Object Controller are designed as safety-certified systems with high availability. The better question is whether the overall system becomes more reliable – and with standardized interfaces and centralized diagnostics, it typically does.
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Safety assessment continues at system level. But because the platform reuses certified safety cases across products, the engineering and approval effort is substantially lower per project compared to designing and certifying a bespoke solution each time.
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Yes. The zentrak OBJECT CONTROLLER PLATFORM is designed to operate with today's conventional interlockings and can be configured to support full EULYNX interfaces as your infrastructure modernizes. Migration is incremental, not a forklift replacement.
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Maintenance shifts from reactive to data-driven. The Object Controller continuously streams opeational data – current trends, fault indicators, health status - enabling remote diagnostics, faster fault isolation, and the foundations of predictive maintenance.
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Initial implementation requires investment, but lifecycle costs is significantly reduced: less integration engineering per project, reused safety cases, remote diagnostics cutting on-site visits, and a platform maintained and updated across the entire product family.
Let's talk about your project!
Whether you are evaluating Object Controllers for the first time or planning a migration from a conventional architecture, our technical specialists are ready for a detailed follow-up discussion.