bsen61508
bsen61508-4-20xxfunctionalsafetyofelectricalelectronicprogrammableelectronicsafety-relatedsys
................................... 8 2 Programmable electronic system (PES): structure and terminology ............................ 14 3 Electrical/electronic/programmable electronic system
bsen61508-7-20xxfunctionalsafetyofelectricalelectronicprogrammableelectronicsafety-relatedsys
.................................................... 16 Dynamic principles ................................................................................................ 17 Standard test access