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Homepage>IEC Standards>IEC 61158-5-21:2019 - Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements
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download between 0-24 hoursReleased: 2019-04-10
IEC 61158-5-21:2019 - Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements

IEC 61158-5-21:2019

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

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English
Standard number:IEC 61158-5-21:2019
Released:2019-04-10
Language:English
DESCRIPTION

IEC 61158-5-21:2019

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). 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.