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IEC 61158-4-12:2007 ED1

Industrial communication networks - Fielbus specifications - Part 4-12: Data-link layer protocol specification - Type 12 elements

Dec 14, 2007

General information

99.60     Aug 5, 2010

IEC

TC 65/SC 65C

International Standard

25.040.40     35.100.20  

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Scope

IEC 61158-4-12:2007 It provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all participating data-link entities in a synchronously-starting cyclic manner, and in a cyclic or acyclic asynchronous manner, as requested each cycle by each of those data-link entities. Thus this protocol can be characterized as one which provides cyclic and acyclic access asynchronously but with a synchronous restart of each cycle. It includes the following significant changes with respect to the previous edition deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; addition of new types of fieldbuses; division of this part into multiple parts numbered.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61158-4:2003 ED3

WITHDRAWN
IEC 61158-4:2003/COR1:2004 ED3

WITHDRAWN
IEC PAS 62407:2005 ED1

NOW

WITHDRAWN
IEC 61158-4-12:2007 ED1
99.60 Withdrawal effective
Aug 5, 2010

REVISED BY

WITHDRAWN
IEC 61158-4-12:2010 ED2