Industrial communication networks. Profiles - Functional safety fieldbuses. Additional specifications for CPF 181 Scope This part of the IEC 617843 series specifies a safety communication layer (services and protocol) based on CPF 18 of IEC 617842 and IEC 61158 Type 22. It identifies the principles for functional safety communications defined in IEC 617843 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

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Requirements in previous edition that were not part of the testing have been relocated and are now informative

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since carrying out the attack would cost more than any benefits obtained from a successful attack

This document is not applicable to the following:

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