61784-3-3-2010 Réseaux de communication industriels – Profils – Partie 3-3: Bus de terrain de sécurité fonctionnelle – Spécifications supplémentaires pour CPF 3 (Edition 2.0)
Industrial communication networks – Profiles – Part 3-3: Functional safety fieldbuses – Additional specifications for CPF 3 (Edition 2.0)
Réseaux de communication industriels – Profils – Partie 3-3: Bus de terrain de sécurité fonctionnelle – Spécifications supplémentaires pour CPF 3 (Edition 2.0) 是非强制性国家标准，您可以免费下载前三页
This part of the IEC 61784-3 series specifies a safety communication layer (services and protocol) based on CPF 3 of IEC 61784-1@ IEC 61784-2 (CP 3/1@ CP 3/2@ CP 3/4@ CP 3/5 and CP 3/6) and IEC 61158 Types 3 and 10. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. NOTE 1 It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres. This part1 defines mechanisms for the transmission of safety-relevant messages among participants within a distributed network using fieldbus technology in accordance with the requirements of IEC 61508 series2 for functional safety. These mechanisms may be used in various industrial applications such as process control@ manufacturing automation and machinery. This part provides guidelines for both developers and assessors of compliant devices and systems. NOTE 2 The resulting SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system ?C implementation of a functional safety communication profile according to this part in a standard device is not sufficient to qualify it as a safety device.