IEC-61158-4-20 › Industrial communication networks - Fieldbus specifications - Part 4-20: Data-link layer protocol specification - Type 20 elements
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IEC 61158-4-20:2014 specifies 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 the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units.
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35.110 (Networking Including local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN), etc. Private Integrated Services Network (PISN), see 33.040.35 Integrated Services Digital Network (ISDN), see 33.080)
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IEC 61158-4-20 Ed. 1.0 b:2014
Aug. 15, 2014