-Industrial control and automation systems are evolving towards infrastructures more connected. Its component's interconnection makes t he m mo r e de pe nd e nt 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 w ill describe the analysis of dependability requirements for the next electronic lift control.

International audienceTo ensure control, present lifts use the Controller Area Network (CAN) bus for transmitting commands between components. Although it is largely adopted in the industrial process, CAN is not able to guarantee a sufficient throughput to transmit multimedia data or to meet the requirements of some safety standards. In this paper, we present a transition case from electrical/electromechanical components to a networked control system. The main element we focus on in the lift system is the safety chain. We propose to build the lift communication system around real-time Ethernet for more efficiency, smartness and safety. Furthermore, the use of the openSAFETY protocol as a safety layer over the real-time Ethernet allows the achievement of the required Safety Integrity Level (SIL). This adopted solution should meet the adopted standard IEC 61508 requirements