IEC 61158-4-4:2019被替代
Industrial communication networks - Fieldbus specifications - Part 4-4: Data-link layer protocol specification - Type 4 elements
出版：
专家解读视频
IEC 61158-4-4:2019 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. This third edition cancels and replaces the second edition published in 2014 and constitutes a technical revision. The main changes include the following significant technical changes with respect to the previous edition:a) additional user parameters to services;b) additional services to support distributed objects;c) additional secure services
CEI EN IEC 61158-4-4 : 2019 - Identical
NF EN IEC 61158-4-4:2019 - Identical
DS/EN IEC 61158-4-4:2019 - Identical
DIN EN IEC 61158-4-4:2020-08 - Identical
I.S. EN IEC 61158-4-4:2019 - Identical
PN-EN IEC 61158-4-4:2019-12 - Identical
UNE-EN IEC 61158-4-4:2019 - Identical
NEN-EN-IEC 61158-4-4:2019 en - Identical
EN IEC 61158-4-4:2019 - Identical
