MEN Mikro Elektronik
Software for Safe Automated Operation of Trains
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Software for Safe Automated Operation of TrainsMEN Mikro Elektronik
MEN Train Control System menTCS is a software solution that has been designed specifically for the safe, automated operation of trains.
- Programming interface Y-COM is now available within software package for menTCS
- Simplified and safe communication with external network devices
- Standard BSD socket API within safety-critical system
Easy communication with redundant control level
menTCS is a modular computer platform developed for safe control of all safety-critical functions in rolling-stock and wayside applications. The system is functionally safe and SIL 4-certified due to its two redundant control processors, which communicate with a dedicated I/O processor and thus also with additional external systems.
The new Y-COM programming interface unites the commands of the two control processors and thus, despite redundancy, enables an easy communication between the control and the I/O level. Y-COM is a BSD-socket-based API (Application Programming Interface) integrating well-proven open source technology into a safety-critical environment. Y-COM itself complies with SIL 0 - but by communicating via a safety protocol between the API library and the actual software application, it doesn't affect the safe application.
The Y-COM programming interface is part of a complete software development kit (SDK) for menTCS. In addition to that it consists of a BSP with diagnosis and monitoring functions; a synchronization interface for comparing data between both control processors and to guarantee their output at the exact same time; an exchange interface, which compares the data between control level and I/O processor; and the PACY framework (SIL 4), which takes care of the communication within the menTCS network.
For systems that need SIL 4 certification, certification packages for hardware and safety-relevant software are available. They include the assessment report from TÜV SÜD, the safety case, the safety user guide, support hours from MEN and the safe operating system from QNX.