Influence of SRCS architecture on possibility to achieve required safety integrity level of safety function

Jozef Valigursky

doi:10.1109/ki48306.2020.9039800

Influence of SRCS architecture on possibility to achieve required safety integrity level of safety function

Jozef Valigursky

https://doi.org/10.1109/ki48306.2020.9039800

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Publication Date: Jan 1, 2020

Citations: 5

Affiliation: University of Žilina

#Programmable Logic Controllers #Safety Programmable Logic Controllers + Show 8 more

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Abstract

Nowadays a lot of control systems are based on safety PLC (safety programmable logic controllers). The most of these PLC´s are certified for SIL3 application (Safety integrity level 3). When components of this safety PLC are not used right then resulting SIL is lower. But when more components are used for realization of safety function properly with application diagnostics, then resulting SIL of SF (safety function) can be higher than SIL of used components. This paper deals with possibilities of various SRCS architectures with application diagnostics to reach required SIL.

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