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BS EN IEC 61158-4-21:2019被替代

Industrial communication networks. Fieldbus specifications

出版:

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基本信息
標(biāo)準(zhǔn)編號: BS EN IEC 61158-4-21:2019
標(biāo)準(zhǔn)類別:Standard
出版單位:
標(biāo)準(zhǔn)頁數(shù):0
標(biāo)準(zhǔn)簡介

IEC 61158-4-21:2019 describes procedures for the timely transfer of data and control information from one data link user entity to a peer user entity, and among the data link entities forming the distributed data link service provider and procedures for giving communication opportunities based on standard ISO/IEC 8802-3 MAC, with provisions for nodes to be added or removed during normal operation; structure of the fieldbus data link protocol data units (DLPDUs) used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. The main changes are: ?added Frame control Value, DLM function and DLL constants; ?changed NCM_RETRY_RNMS to NCM_CHECK_NET_INTEGRITY_REQ; ?updated DLM state table; ?miscellaneous editorial corrections.

本標(biāo)準(zhǔn)替代的舊標(biāo)準(zhǔn)

BS ISO 22526-1:2020

BS EN 61158-4-21:2012

BS ISO 22526-1:2020

BS EN 61158-4-21:2012

替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)

BS EN IEC 61158-4-21:2023

等同采用的國際標(biāo)準(zhǔn)

IEC 61158-4-21:2019 - Identical

EN IEC 61158-4-21:2019 - Identical