Authors describe the solutions of safety industrial Ethernet with orientation to safety-related industrial control systems. Nowadays the numbers of safety solutions of industrial Ethernet are increasing (e. g. CIP Safety, ProfiSafe, Safety Interbus). Bernecker & Rainer is coming with the new solution - Open Safety, which was developed for technology Ethernet PowerLink (EPL), but open platform is compatible with the other types of industrial Ethernet too, e. g. Sercos, Ethernet/IP, Modbus, and Profinet. Mainly part of paper the safety analyses of Open Safety frame with orientation to safety codes used in two sub-frames are mentioned. Practical part is orientated to model realisation via Matlab, Simulink with the use of safety codes with poss...