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BS EN 61158-5-12:2008

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Industrial communication networks. Fieldbus specifications Application layer service definition. Type 12 elements

Available format(s)

Hardcopy , PDF

Superseded date

30-06-2012

Superseded by

BS EN 61158-5-12:2012

Language(s)

English

Published date

31-01-2009

Committee
GEL/65/3
DocumentType
Standard
Pages
122
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

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.

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