BS EN 61784-3-3:2017 PDF
Industrial communication networks. Profiles - Functional safety fieldbuses. Additional specifications for CPF 3
Industrial communication networks. Profiles - Functional safety fieldbuses. Additional specifications for CPF 3
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Дата публикации:
- 30 ноября 2017 г.
- ICS:
- 25.040.40
- Технический комитет:
- CENELEC
- SKU:
- BS EN 61784-3-3:2017
Abstract
1 Scope 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 . This safety communication layer is intended for implementation in safety devices only.
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 part 1 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 series 2 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 p...
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