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Standard

IEC 61784-3-3:2016 ED3

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Nota: Ultima versione: IEC 61784-3-3:2021 ED4

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Astratto

IEC 61784-3-3:2016 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. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Legacy V1-mode removed from this protocol edition; - Protocol extensions to protect against possible loopbacks (LP extensions); - Protocol extensions to keep SIL3 for safety networks with large numbers of participants (XP extensions) and subsequent new F-Parameter "F_CRC_Seed"; - Introduction of random and disjoint Codename based MonitoringNumbers (MNR) besides to the previous Consecutive Numbers; - Provisions for Channel Granular Passivation and subsequent new F-Parameter "F_Passivation"; - GSD extensions due to new F-Parameters; - Notations according to the CP3 family in IEC 61158 (e.g. IO Controller); - Additional diagnosis message types; - Diverse error corrections and fixes of typos; - Updated documents in bibliography.

Specifiche dei prodotti

  • Standard da IEC
  • Pubblicato:
  • Ritirato:
  • Edizione: 3
  • Tipo di documento: IS
  • Pagine
  • Publisher IEC
  • Distributor IEC
  • ICS 25.040.40
  • ICS 35.100.05
  • International TC TC 65/SC 65C

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