IEC 61158-6-21:2019现行
Industrial communication networks - Fieldbus specifications - Part 6-21: Application layer protocol specification - Type 21 elements
出版：International Electrotechnical Committee
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基本信息
标准编号： IEC 61158-6-21:2019
标准类别：Standard
出版单位：International Electrotechnical Committee
标准页数：0
标准简介
IEC 61158-6-21:2019 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 2 fieldbus.
本标准替代的旧标准
