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Nov 04, 2015

Modular Train Control System: Safe I/O Extension with Digital Outputs

MEN is introducing the first member of a new family of safe I/O boards around the MTCS Modular Train Control System. The K1 supports eight digital outputs and takes over up to SIL 4 relevant functions within the MTCS.

Safe binary outputs I/O card for modular train control
  • 8 digital outputs, 24 V, 48 V, 72 V, 96 V, 110 V
  • 300 mA per channel
  • High-side switch outputs
  • Optical isolation from other cards
  • Extensive supervision functions
  • Compliant to EN 50129, EN 50128, IEC 61508 and EN 50155
  • -40 to +85°C operating temperature
  • Certifiable up to SIL 4
  • Conformal coating

Safety up to SIL 4 for Digital Outputs

Within the new product family around the MTCS Modular Train Control System, which was developed to control safety-critical functions in a train, MEN is presenting the first I/O board, K1, with binary output functionality.

The voltage range of 24 V up to 110 V of the K1 complies with all requirements for rolling stock. With its integrated supervisor functions, extended temperature range and overall EN 50155-conformity, the K1 is perfectly prepared for its usage in the MTCS.

The MTCS family consists of the MH50C controller unit together with the safe, SIL 4-certified CPU board F75P and up to 6 I/O cards. For more complex applications or if the places of operation are far away from each other the control unit can be extended by up to 63 remote I/O boxes.

The MH50C controller unit as well as the remote I/O boxes can be flexibly configured with the new I/O boards regarding their number and functionality. Beside the K1 also I/O boards for digital inputs and frequency inputs will be available. All components can be plugged and removed independently from each other in a system, making it possible to exchange cards or do a new configuration very easily.

MTCS, the Modular Train Control System from MEN, builds on standardized electronics and a standardized interface to the software application, and is therefore the very first open computer platform for automatic train operation and protection. Both operators and supplier benefit from noticeably lower system costs – not only for certification but also due to independence of suppliers regarding maintenance and life cycle management.

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