EN IEC 61158-5-21:2019
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Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements
Published date
06-21-2019
IEC 61158-5-21:2019 specifies the structure and services of the type 21 IEC fieldbus Application Layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI Application Layer Structure (ISO/IEC 9545).
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