Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems
This part of the IEC 61508 seriesa) is intended to be used only after a thorough understanding of IEC 61508-1, which providesthe overall framework for the achievement of functional safety;b) applies to any safety-related system, as defined by IEC 61508-1, that contains at leastone electrical, electronic or programmable electronic element;c) applies to all elements within an E/E/PE safety-related system (including sensors,actuators and the operator interface);d) specifies how to refine the E/E/PE system safety requirements specification, developed inaccordance with IEC 61508-1 (comprising the E/E/PE system safety functionsrequirements specification and the E