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IEC 61158-5-21:2019

IEC 61158-5-21:2019

Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 5-21: Définition des services de la couche application - Éléments de type 21

Date:
2019-04-10 /Vigente
Summary (English):
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). This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: •added Write and Read service; •miscellaneous editorial corrections.
Summary (French):
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