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The IEC 61511 standard specifies the general requirements for a SRS. It is important that a SRS is clear, concise, complete and consistent. The SRS should contain the functional and integrity requirements for each Safety Instrumented Function (SIF).
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a) Define the requirements for any data or initialization sequences that are specific to a given site, mission, or operational mode (e.g., grid values, safety limits, etc.); b) Specify the site or mission-related features that should be modified to adapt the software to a particular installation.
15 Φεβ 2022 · There are three types of requirements that the SRS contains: Top-tier: These are the high-level business requirements. They outline the business’ measurable goals, define the purpose behind...
16 Μαΐ 2018 · Writing SRS: format and content. SRS format should be divided into 3 components: General requirements; Functional requirements; Integrated security requirements. Regarding contents, it must include: Design and architecture; Reliability; SIL (Safety Integrity Level);
specification of the Safety Functions. The SRS requirements in IEC 61511 and ISA 84.00.01-2004 are intended to address this fundamental gap by defining the minimum requirements for specification of functional and basic design requirements that are to be included in a SRS that is prepared prior to detailed design, installation, and operation.
10 Σεπ 2019 · IEC 61511 ed.2 and ISA 84.00.01 require that a Safety Requirements Specification (SRS) be prepared for each Safety Instrumented System (SIS). Clause 10 describes the requirements for the SRS. Clause 10.3.2 lists the minimum items that shall be addressed in the SRS. A total of 29 items are listed.
