Remote-control systems are used in situations where, in the interests of efficiency, infrastructure such as rail crossing safety systems and signal towers is operated from central traffic control centers rather than manually.
The basic principle is relatively simple: the relevant information – such as switching and control commands, identification and warning messages, switch position reports, as well as measurements and meter readings – needs to be sent via a secure channel from a transmitter in a central station to a receiver in the substation.
However, the practical implementation and design of these systems is far more complicated than it might appear. With decades of experience of remote-control systems, this is where Zelisko can make a real difference. The company’s latest system is the CENELEC EN5012x SIL4-certified ZFWS100. This flexible, future-proof remote-control system for rail applications complies with the highest safety integrity level (SIL4).