Remote Input Output Systems
EKE-Trainnet® Remote Input Output Systems provides efficient data input and output management with support for analogue and digital I/O. This minimises cabling complexities while ensuring flexibility and optimised system performance.
The Remote Input Output Systems can connect with sub-systems and the Train Communication Network. These control and diagnostics systems can run on the same train computer that is used for Gateway functionalities, providing a more compact and cost effective solution.
RIOM Key Features
Dual-homing with TRDP
Dual‑homing with TRDP connects each RIOM to two independent Ethernet paths, ensuring continuous real‑time
I/O data flow even if a link or device fails, with optional SDTv2 support enabling SIL 2 capable data transmission for safety‑critical applications.
High I/O density
Up to 576 digital I/O channels in a single unit support high signal density while reducing hardware and simplifying system design.
Mixed Non-SIL and SIL Applications
SIL 2 and non‑SIL modules can co‑exist in one Remote I/O system, reducing the number of racks, power feeds, and field connections required through shared hardware.
Application‑ready I/O platform
Application logic can run directly on the RIOM, improving response times, reducing data transfer, and lowering system complexity by minimising the need for additional computing hardware.
Wide range of input output modules
Digital Input/Output
- 24 Input channels
- 8 input/output channels
Digital Relay Output
- up to 8 relay outputs
Digital Solid State Outputs
- 8 solid state outputs (only available by request)
Analogue Input
- 10 voltage channels (AIM)
- 10 current channels (AIM)
- up to 16 voltage channels (AIO)
Analogue Output
- 16 output channels (in 4 groups of 4 isolated channels)
High Speed Analogue Input
- 4 voltage channels
- 4 current channels
Pt100/Pt1000
- up to 6 measurement channels
Temperature Sensor Input
- up to 6 measurement channels
Cybersecurity for RIOM applications
Our Remote I/O Systems use a cybersecurity architecture that meets IEC 62443-4-2 Security Level 2 and follows EU Cyber Resilience Act principles for secure-by-design operation. This approach protects firmware, applications and configuration data throughout
the lifecycle, supported by controlled and CRA-compliant update processes.
Access control restricts configuration changes and application downloads, while operational and engineering interfaces remain separated to reduce exposure. Security event logging supports maintenance teams by providing clear records for diagnostics and incident analysis, helping operators maintain secure and dependable distributed I/O performance.
Build a Remote Input Output System using the following modules
The Remote Input Output System usually consists of a Central Processing Unit or MVB Interface, I/O modules, a power supply and a rack. Click on an image to explore related content.
Modular Concept
All our EKE-Trainnet® products are modular, enabling you to precisely select the modules you require. Modules can be combined for a very flexible and versatile solution. The modular design enables you to select only the features you need for a cost efficient solution. It also means repairs and upgrades are quick and easy.
Below is an example of a Remote Input Output System made up of a selection of common modules. Hover over each area to view a brief description or click to access the full module page.
CPU with Serial Links (CPS)
A central processing unit providing serial communication interfaces.
I/O Modules
Choose from our range of I/O modules. In this example, Digital Input Output Modules are used.
Power Supply Unit for VME (PSV)
Provides power to the system.
Power Input Unit (PIU)
Used to pass train battery voltage to the EKE-Trainnet® Power Supply Unit for VME (PSV) module
Build Your Own Applications
EKE-Trainnet® Remote Input Output System is built on an open-source Linux platform powered by CODESYS®. It allows you to develop custom applications.
If you prefer to develop in-house. EKE-Electronics provides training, tools, and guidance to support your development efforts. Alternatively, EKE-Electronics has expertise to develop fully or partially software on your behalf.
Why Choose EKE-Electronics for Remote Input Output Systems?
Engineered for excellence in rail technology, EKE-Trainnet® Remote Input/Output System supports SIL 2 development. Our system is designed to seamlessly integrate into your operations, providing the reliability and advanced capabilities needed for efficient and effective control.
Very high I/O density
Designed with a very high I/O density, the EKE-Trainnet® Remote I/O System accommodates numerous signals within a compact space. In a standard 3U, 84TE rack, it can include up to 576 digital I/O channels (18x32ch).
This high density is crucial for high-speed trains and Electric Multiple Units (EMUs), offering space-saving benefits, a decentralised network architecture, and simplified I/O cabling, which ultimately reduces costs.
Support for serveral vehicle buses
Supporting multiple vehicle buses, the EKE-Trainnet® Remote I/O System excels by managing several identical or different buses simultaneously. This capability simplifies the train design process, allowing for a more streamlined and efficient system architecture.
By integrating various buses into a single system, enhances flexibility and reduces complexity, making it an ideal choice for modern rail applications.
Dual homing with TRDP
EKE-Trainnet® Remote I/O System features dual-homing with Train Real-Time Data Protocol (TRDP), ensuring unparalleled reliability and continuity.
This dual-homing capability provides redundant pathways for data communication, safeguarding against potential failures and enhancing system stability.
Ideal for high-speed and critical applications, this feature ensures uninterrupted performance and dependable operation for your train systems.
Relevant News & Blogs
- Blog post
- Blog post
Frequently Asked Questions
What are Remote Input Output Systems?
A Remote Input Output (I/O) System is a component of the train’s control and management system (TCMS) that extends the number of available I/O channels of the TCMS. It connects and manages various sensors and controls throughout a train and allows these components to communicate with the train’s main computer without needing a lot of wiring.
What is SIL?
SIL or Safety Integrity Levels are defined levels of risk reduction applied to safety-related systems. They are designed to automatically prevent dangerous failures or to control them when they occur. SIL levels range from SIL 1 to SIL 4, with SIL 4 providing the highest level of risk reduction.
For more information, read our blog about implementing SIL for train products.
What are Safety Integrity Levels?
Safety Integrity Level (SIL) is a measure of the reliability and risk reduction capability of safety-related systems. For railway applications, SIL levels are defined by standards such as IEC 61508 and EN 50126/EN 50128/EN 50129.
What is a Software Development Environment?
A software development environment is designed to facilitate the development of software applications. It provides programmers with the necessary tools, features, and resources needed to write, test, debug, and deploy software efficiently.
Do you support 24-110VDC?
We have a range of different power supplies supporting 24-11VDC:
- PSV1133: 24V
- PSV1513: 72V
- PSV2513: 36..52V
- PSV3034: 48..110V
- PSV1018: 110V
- PSR3032: 110V
The key difference between the PSV and PSR is that the PSV provides an 80 ms grace supply following loss of input power.