
Industrial communication networks - Local bus specifications - Part 4-21: Data coupling layer protocol specification - Type 21 elements
出版:Polish Committee for Standardization

专家解读视频
IEC 61158-4-21:2019 - Identical
EN IEC 61158-4-21:2019 - Identical
IEC 61158-4-21:2019 - Identical
IEC 61158-4-21:2019 - Identical
EN IEC 61158-4-21:2019 - Identical