EN
SR EN IEC 61158-4-4:2019
Rețele de comunicație industriale. Specificații ale magistralei de câmp. Partea 4-4: Specificație a protocolului stratului legătură de date. Elemente de tip 4
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
Status :
In vigoare
Data aprobării : 29.11.2019
Data anulării : 26.04.2026
Număr de pagini : 54
ICS : 25.040.40 Masurarea si controlul proceselor industriale,35.100.20 Strat legatura de date,35.110 Retele
Comitet tehnic : 23 - Măsurare, comandă şi automatizare în procesele industriale
- Inlocuieste SR EN 61158-4-4:2015
- Inlocuit prin SR EN IEC 61158-4-4:2023