Cascading safety relays compared to using a network solution

Štohl, Radek; Stibor, Karel

doi:10.1109/carpathiancc.2016.7501191

Cited by 2 publications

(3 citation statements)

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“…We will concentrate especially on the electrical and electronics-based solution. We can found in a similar way in [1], [6] or [7].…”

Section: Introductionsupporting

confidence: 57%

“…When safety had become a major aspect for machine users and operators, it was to be soon followed by the distributed solution of safety [6]. In Germany, the committee for safety fieldbuses was founded in 1989 with the aim to adapt safety requirements transported over networks in line with the basic bundle of safety standardsthe IEC (later also the EN) 61508.…”

Section: Cip-safety Protocolmentioning

confidence: 99%

“…We identified [6] the mechanical hazards of crushing, shearing, cutting, entanglement, drawing in or trapping, ejection, high pressure fluid ejection, slip, trip, and fall. Further risks then comprised electrical hazards (defined as direct contact and indirect contact), thermal hazards resulting in burns and scalds caused by contact with hot surfaces, noise hazard, and hazards generated by materials and substances in conjunction with the hydraulic system of the press.…”

Section: Safety Functionsmentioning

confidence: 99%

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Application of CIP Safety Protocol Between Double Hydraulic Press Machine and Industrial Robot

Štohl¹,

Stibor²,

Sediva³

2018

Proceedings of the 29th International DAAAM Symposium 2018

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The paper describes a hardwired solution and compares it with the approach based on a current trend in automation, namely, communication control over the Ethernet or via the CIP-Safety protocol, in which all the machines involved can communicate very effectively. The Ethernet can be used to transfer safety information even for the highest safety integrity level, and it also points out that network is not a critical factor in designing safety functions. Further, the paper contains calculation of failure probability per hour for the communicated data, which can be taken into account when users design distributed safety functions. Such a procedure is capable of satisfying not only the hardware reliability requirements but also the demands of end users, who seek to achieve a productivity rate as high as possible.

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“…We will concentrate especially on the electrical and electronics-based solution. We can found in a similar way in [1], [6] or [7].…”

Section: Introductionsupporting

confidence: 57%

Section: Cip-safety Protocolmentioning

confidence: 99%

Section: Safety Functionsmentioning

confidence: 99%

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