CAN/CSA-C22.2 NO. 61511-1:17 PDF Download

CAN/CSA-C22.2 NO. 61511-1:17 standard provides guidelines and requirements for the specification, design, installation, operation, and maintenance of safety instrumented systems (SIS) in the process industry sector.

The standard is based on IEC 61511-1 and is intended to be a process sector implementation of IEC 61508:2010. It outlines the functional safety requirements for SISs but does not specify who is responsible for implementing these requirements, as it may vary according to safety planning, project planning, management, and national regulations.

This standard applies when devices that meet the requirements of the IEC 61508 series or IEC 61511-1:2016 are integrated into an overall system for a process sector application. It does not apply to manufacturers claiming device suitability for use in SISs or those developing embedded software or using full variability languages. The scope of the standard extends to various industries within the process sector, such as chemicals, oil and gas, pulp and paper, pharmaceuticals, food and beverage, and non-nuclear power generation.

The standard covers the relationship between SIS and other instrumented functions, the identification of functional and safety integrity requirements, life-cycle requirements for system architecture and hardware configuration, application programming requirements, requirements for achieving functional safety, and measures and techniques required to achieve the specified safety integrity levels.