Formal Verification of Safety PLC Based Control Software

Darvas, Dániel; Majzik, István; Viñuela, Enrique Blanco

doi:10.1007/978-3-319-33693-0_32

Cited by 42 publications

(16 citation statements)

References 14 publications

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“…In [8] we have presented a first case study of using PLCverif for safety-critical PLC programs. The target of this work was the verification of a safety logic that is used in the SM18 Cryogenic Test Facility at CERN.…”

Section: Application and Outlook To Verificationmentioning

confidence: 99%

“…The IL' representation of the implementation consists of 9,500 lines of code, while the generated STr' representation is composed of more than 120,000 statements [8].…”

Section: Application and Outlook To Verificationmentioning

confidence: 99%

“…the precise representation of the nesting stack operations. Awlsim 8 is an open-source simulator for Siemens IL' (STL) programs. The authors claim that it provides a nearly complete, Siemens-equivalent simulation of IL' programs.…”

Section: Related Workmentioning

confidence: 99%

“…In this case 12 different problems were identified using the above-described model checking workflow implemented in PLCverif. More details about this case study can be found in [8].…”

mentioning

confidence: 99%

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PLC Program Translation for Verification Purposes

Darvas

Majzik

Viñuela

2017

Period. Polytech. Elec. Eng. Comp. Sci.

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Section: Application and Outlook To Verificationmentioning

confidence: 99%

“…The IL' representation of the implementation consists of 9,500 lines of code, while the generated STr' representation is composed of more than 120,000 statements [8].…”

Section: Application and Outlook To Verificationmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

“…In this case 12 different problems were identified using the above-described model checking workflow implemented in PLCverif. More details about this case study can be found in [8].…”

mentioning

confidence: 99%

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PLC Program Translation for Verification Purposes

Darvas

Majzik

Viñuela

2017

Period. Polytech. Elec. Eng. Comp. Sci.

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“…These must be eliminated with SIL based on risk analysis. The use of certified software blocks and the subsequent verification of the application guarantees the systematic integrity of the safety function of the implemented safety function (for example, see [4], [5], [6]). The integrity of the safety against accidental failures is determined by the components used and the way they are connected.…”

Section: Introductionmentioning

confidence: 99%

Performing safety functions to monitor the protected area using a light curtain

Ždánsky

Medvedík

2019

2019 International Conference on Applied Electronics (AE)

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In many applications, a light curtain is used to detect the intrusion of a human (or other protected object) into the danger zone. After detecting the interruption of the light curtain, a safety function is activated to bring the danger zone into a safe state (nonhuman). If the space taken by the light curtain is at the same time a working space, it is necessary to distinguish whether the light curtain interrupt is caused by man or material (material flows cannot cause the dangerous zone to be put into a safe state). There are several ways how to achieve this resolution, but additional (optional) sensors are commonly used. The paper deals with the parameters of additional sensors and how to connect them to the achieved Safety Integrity Level (SIL) of the safety functions realized by the help of the light curtain.

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Safety analysis of safety‐critical systems for their applicability on NPP systems: A state‐of‐the‐art review

Kumar

Maurya

Singh

et al. 2021

Quality & Reliability Eng

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Since any risk in the safety‐critical systems (SCSs) might lead to a terrible disaster, the utmost quality attribute of these systems is safety. Researchers are putting their efforts to ensure the safety of such systems. This paper summarizes the state‐of‐the‐art in the area of the safety attribute of such critical systems. The in depth literature survey is performed to explore the several methods/models used for safety analysis of the SCS. The limitations of such methods are also shown regarding their applicability in SCS of the nuclear power plant (NPP). We also propose a framework to perform safety analysis, which can deal with these limitations and demonstrated the approach on a case study of NPP. Further, the direction for future work is advised to extend the further scope of research based on the case study.

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Formal Verification of Safety PLC Based Control Software

Cited by 42 publications

References 14 publications

PLC Program Translation for Verification Purposes

PLC Program Translation for Verification Purposes

Performing safety functions to monitor the protected area using a light curtain

Safety analysis of safety‐critical systems for their applicability on NPP systems: A state‐of‐the‐art review

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