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SIL certificationstandard

IEC 61508： Functional safety of electrical/electronic/programmable electronic safety related systems

The IEC61508 standard is the entireFunctional safetyThe basic standard of the standard cluster specifies the overall, hardware, and software security lifecycle of security related systems, and proposes requirements for system security integrity and random security integrity for security related systems. These requirements cover the entire process of the security system from project initiation, research, risk analysis, development, operation to scrapping. The overall safety lifecycle mainly proposes requirements for safety related systems at the system level, while the goal of the hardware and software safety lifecycle is to avoid systematic failures during the design process and control random hardware failures through technical means.

The main objectives of the IEC61508 standard are:

1The components of safety related systems, including software and hardware, provide a systematic method for safety supervision throughout their lifecycle;

2. Methods for determining security related system security function requirements;

3. Basic standards that can be directly applied to all industrial fields. At the same time, it can also guide standards in other fields, making the drafting of these standards consistent (such as basic concepts, technical terminology, requirements for prescribed safety functions, etc.);