Influence of Architecture on Reliability and Safety of the SRCS with Safety PLC

Cuninka, Peter; Závacký, Pavol; Strémy, Maximilián

doi:10.1109/mcsi.2015.38

Cited by 10 publications

(3 citation statements)

References 3 publications

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“…The safety of the realized safety function also affects the other parts of the SRCS, which are dealt with in more detail in other papers, e.g. [10], [11], [12], [13].…”

Section: Discussionmentioning

confidence: 99%

The Output Circuit Solution of the Safety PLC for a Larger Number of Output Points

Zdanskv

Rástočný

Hrbček

2021

2021 International Conference on Applied Electronics (AE)

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Safety PLCs (Programmable Logic Controllers) are commonly a part of the Safety Related Control System (SRCS), especially in industrial applications. In most cases, the controlled devices cannot be connected directly to the safety PLC outputs, but they require an output circuit consisting of relays or contactors. The paper deals with the solution of the output circuit for a larger number of controlled devices and analyzes the influence of selected factors (especially the switching frequency of the used relays) on the Safety Integrity Level (SIL) of the output circuit.

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“…The safety of the realized safety function also affects the other parts of the SRCS, which are dealt with in more detail in other papers, e.g. [10], [11], [12], [13].…”

Section: Discussionmentioning

confidence: 99%

The Output Circuit Solution of the Safety PLC for a Larger Number of Output Points

Zdanskv

Rástočný

Hrbček

2021

2021 International Conference on Applied Electronics (AE)

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“…The Safe-SADT model is structured around hierarchical blocks, with Block A0 representing the highestlevel abstraction of the system. This block can be further decomposed to illustrate subsystems or individual system components [29], [30], [31].…”

Section: A Qualitative Aspectsmentioning

confidence: 99%

Approaches to Modeling and Oversight in Mechatronic Systems: Methodological Insights

Dinulescu

2023

Preprint

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This paper introduces a comprehensive methodology for the assessment, safe operation, and supervision of mechatronic systems. The objective is to systematically analyse mechatronic systems and establish effective supervisory frameworks. To achieve this, we leverage the Safe-Structured Analysis Design Technique (Safe-SADT) formalism to evaluate overall system reliability and the Grafcet modeling approach to capture control-command aspects in mechatronic systems. We also outline the practical steps involved in implementing WinCC for mechatronic system supervision. This methodology empowers in-depth exploration of mechatronic systems during the design phase.

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“…1). The impact of architecture on safety and availability is also addressed [8]. For the sake of clarity of this paper, it is assumed that SRES consists of three hardware-identical and physically independent units -U1, U2, U3.…”

Section: Model Sres -No Effect On Dfp Of Sfmentioning

confidence: 99%

Impact of 2oo3 Architecture Recovery on the Safety Integrity of a Safety Function

Rástočný

Ždánsky

Medvedík

2021

2021 International Conference on Applied Electronics (AE)

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One of the basic features of a safety function is the safety integrity level. This feature also affects the technical solution of the system that implements the safety function. One of the parameters that affect the safety integrity of a safetyrelevant system is its recovery to the original state after a failure has occurred. The method of recovery a safety-relevant system after the occurrence of a failure to its original state depends not only on its technical solution, but also on the method of its operation. The paper deals with the influence of various methods of recovery on the safety integrity of the safety function, which is implemented by an electronic safety-relevant system with a 2oo3 architecture.

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Influence of Architecture on Reliability and Safety of the SRCS with Safety PLC

Cited by 10 publications

References 3 publications

The Output Circuit Solution of the Safety PLC for a Larger Number of Output Points

The Output Circuit Solution of the Safety PLC for a Larger Number of Output Points

Approaches to Modeling and Oversight in Mechatronic Systems: Methodological Insights

Impact of 2oo3 Architecture Recovery on the Safety Integrity of a Safety Function

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