SIRIUS, CENTRAL UNIT 3RK3 ASISAFE EXTENDED FOR MODULAR SAFETY SYSTEM 3RK3 2/4F-DI,4DI,1F-RO,1F-DO,24V DC MONITORING OF ASI SLAVES, CONTROL OF 10 SAFE OUTPUTS ON AS-I BUS PARAMETERIZABLE VIA SW MSS ES WIDTH 45MM SPRING-LOADED TERMINAL UP TO SIL3 (IEC 61508) UP TO PERFORMANCE LEVEL E (ISO 13849-1) 2 EXPANSION MODULES CAN BE CONNECTED