Malfunctions can arise quickly if points are set incorrectly. So it was all the more important to the operators of the Dolderbahn and Rigi Bahnen AG that the points controller be upgraded to the state of the art and comply with the applicable CENELEC standards. There are eight points in total, made up of three different types, which had previously been controlled differently; that proved a challenge. VT AG and Pilz worked together to develop a generic solution: The automation system PSS 4000-R with the corresponding I/O modules, located in the control box alongside the tracks, is now used for centralised control and monitoring of the points. The advantage of this generic control solution is that it only needs to be certified once and in future can be transferred to other types of points. In this way the innovative retrofit ensures that operational processes run smoothly. http://www.pilz.com
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