New lift safety architecture to meet PESSRAL requirements

Industrial control and automation systems are evolving towards infrastructures more connected. Its component´s interconnection makes them more dependent on the networks and communication protocols used. On the one hand, high performance, low costs and real-time capabilities are generally required to cope with more and more demanding application requirements; while on the other hand, security solutions are often needed in an increasing number of communication attack scenarios. As part of new lift control generation, we will analyze a transition case from an electrical/electro technical component to network of communicating electronic components as part of the safety displacement system. This paper will describe the analysis of dependability requirements for the next electronic lift control.