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Homepage>CSN Standards>18 AUTOMATION FOR INDUSTRY>1840 Data bus-bars for processes>CSN EN 61158-5-9 ed. 2 - Industrial communication networks - Fieldbus specifications - Part 5-9: Application layer service definition - Type 9 elements
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Released: 01.06.2015
CSN EN 61158-5-9 ed. 2 - Industrial communication networks - Fieldbus specifications - Part 5-9: Application layer service definition - Type 9 elements

CSN EN 61158-5-9 ed. 2

Industrial communication networks - Fieldbus specifications - Part 5-9: Application layer service definition - Type 9 elements

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Number of Standard:CSN EN 61158-5-9 ed. 2
Category:184020
Pages:130
Released:01.06.2015
Catalog number:96921
DESCRIPTION

CSN EN 61158-5-9 ed. 2

CSN EN 61158-5-9 ed. 2 The fieldbus application layer (FAL) provides user programs with a means to access the fieldbus communi-cation 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 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. This standard defines in an abstract way the externally visible service provided by the fieldbus application layer in terms of an abstract model for defining application resources (objects) capable of being manipulated by users via the use of the FAL service, the primitive actions and events of the service, the parameters associated with each primitive action and event, and the form which they take and the interrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to the FAL user at the boundary between the user and the application layer of the fieldbus reference model, and Systems Management at the boundary between the application layer and Systems Management of the fieldbus reference model.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.