
Industrial communication networks – Fieldbus specifications – Part 4-12: Data-link layer protocol specification – Type 12 elements
出版:Danish Standards

专家解读视频
The data-link layer provides basic time-critical messaging communications between devices in an automation environment.
IEC 61158-4-12 : 4.0 - Identical
EN IEC 61158-4-12 : 2019 - Identical
IEC 61158-4-12 : 4.0 - Identical
EN IEC 61158-4-12 : 2019 - Identical