UNE-EN IEC 61158-4-2:2019被替代
Industrial communication networks - Fieldbus specifications - Part 4-2: Data-link layer protocol specification - Type 2 elements (Endorsed by Asociación Espa?ola de Normalización in August of 2019.)
出版：Asociacion Espanola de Normalizacion
专家解读视频
The data-link layer provides basic time-critical messaging communications between devices in an automation environment.
IEC 61158-4-2 : 2019 - Identical
EN IEC 61158-4-2:2019 - Identical
IEC 61158-4-2 : 2019 - Identical
IEC 61158-4-2:2019 - Identical
EN IEC 61158-4-2:2019 - Identical
