IEC 61158-4-21 Ed. 1.0 en:2010

Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements

International Electrotechnical Commission , 08/05/2010

Publisher: IEC

File Format: PDF

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Description

Standard By:International Electrotechnical Commission , 08/05/2010

Published:08/05/2010

Pages:105

File Size:1 file , 1 MB

Language:English

Note:This product is unavailable in Ukraine, Russia, Belarus

IEC 61158-3-21:2010(E) 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 standard cancels and replaces IEC/PAS 62573 published in 2008.