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IEC 61158-5-21:2019 ED2

Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements IEC 61158-5-21:2019 ED2

Publication date:   Apr 10, 2019

General information

60.60 Standard published   Apr 10, 2019

IEC

TC 65/SC 65C

International Standard

25.040.40   Industrial process measurement and control | 35.100.70   Application layer | 35.110   Networking

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61158-5-21:2010 ED1

NOW

PUBLISHED
IEC 61158-5-21:2019 ED2
60.60 Standard published
Apr 10, 2019