IEC 61158-5-12:2007 ED1

Industrial communication networks - Fieldbus specifications - Part 5-12: Application layer service definition - Type 12 elements

Publication date:   Dec 14, 2007

General information

99.60 Withdrawal effective   Aug 5, 2010

IEC

TC 65/SC 65C

International Standard

25.040.40   Industrial process measurement and control | 35.100.70   Application layer

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Scope

IEC 61158-5-11:2007 It provides user programs with a means to access the fieldbus communication environment. In this respect, the FAL can be viewed as a "window between corresponding application programs." This standard provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 12 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. 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

NOW

WITHDRAWN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

REVISED BY

WITHDRAWN
IEC 61158-5-12:2010 ED2