SafeProd. Functional safety in complex products.

Transcription

1 SafeProd Functional safety in complex products Johan Hedberg SP Swedish National Testing and Research Institute Phone: ,

2 Participants SP Swedish National Testing and Research Institute has the main responsibility for the SafeProd project The research has been performed together with Lund University (LTH) A number of industry companies have also been involved in the project - ABB - TetraPak - EKA Chemicals Also the Swedish Work Environment Authority has been involved in the project

3 Aim Support SMEs in the application of new functional safety standards Develop guidelines and templates to support the use of these new safety critical control systems ANALYSIS Overall planning 6 Overall 7 Overall operation & safety maintenance validation planning planning REALISATION Overall installation & commissioning planning Concept Overall scope definition Hazard and risk analysis Overall safety requirements Safety requirements allocation 9 Safety-related systems: E/E/PES Realisation (see E/E/PES safety lifecycle) Safety-related 10 systems: other technology Realisation 12 Overall installation & commissioning External risk 11 reduction facilities Realisation OPERATION 13 Overall safety validation 14 Overall operation, maintenance & repair 16 Decommissioning or disposal 15 Overall modification & retrofit

4 Why is functional safety important? Analogue control systems are rapidly exchanged for programmable control systems in Swedish industry, also in safety systems These new control systems gives increased flexibility and productivity One drawback with these new control systems is that they also give an increased level of complexity and makes it more difficult to overview potential risks that could occur Functional safety includes all measures performed to guarantee that a component/system performs its intended function The aim of SafeProd has been to support Swedish industry when using complex programmable control systems as part of safety systems

5 Overall safety life-cycle 6 Overall operation & maintenance planning Overall planning 7 Overall safety validation planning Overall installation & commissioning planning Concept Overall scope definition Hazard and risk analysis Overall safety requirements Safety requirements allocation 9 Safety-related systems: E/E/PES Realisation (see E/E/PES safety lifecycle) Overall installation & commissioning Overall safety validation Safety-related 10 systems: other technology Realisation 14 Overall operation, maintenance & repair External risk reduction facilities Realisation Back to appropriate overall safety lifecycle phase Overall modification & retrofit 16 Decommissioning or disposal

6 Industry focus Safety of machinery Process safety

7 Project focus The project has been divided into two parts, one applied part and one more theoretical part, where both did have a strong industrial connection The theoretical part has been focusing on research in the area of safety critical control systems which have resulted in a number of publications, for instance at the well known conference SafeComp, The International Conference on Computer Safety, Reliability and Security ( The applied part has been focusing on developing guidelines and templates to support Swedish industry when trying to fulfil new requirements related to design of safety critical control systems

8 Guidelines and templates Safety management Hazard and risk analysis SIL assignment Safety requirements specification (SRS) Hardware safety integrity Design of application software Validation Operation and maintenance

9 Effects on Swedish industry Developed guidelines and methods has been important for Swedish industry when trying to apply these new requirements for safety critical control systems It has been important for Swedish industry that the Swedish Work Environment Authority has been participating in the project to get their view on how to handle these new complex programmable control systems (The result of the project has also been presented for the other Nordic authorities) Ongoing contacts with the SSG which is a large Swedish organisation that develops standards for the forest-/steel- and mining industry

10 Continuation, Effects on Swedish industry Presentation of the research results on both academically and industrial international conferences Swedish process industry has been informed about the results from the project by visiting them at site The result from the project has been informed to Swedish industry consultancies Large number of downloaded reports from the SafeProd homepage, up to today more than 1500 reports has been downloaded from the homepage

11 Visitors at the SafeProd homepage (1 october june 2006)

12 Challenges One of the biggest challenges for the moment in the area of safety critical control systems is to support industry on how to handle requiremnts related to reliability, both on components and systems