ČSN EN IEC 61158-5-23 ED.3   (184020) Průmyslové komunikační sítě - Specifikace sběrnice pole - Část 5-23: Definice služby aplikační vrstvy - Prvky typu 23

Anotace textu normy ČSN EN IEC 61158-5-23 ED.3   (184020)

This document is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the ´three-layer´ fieldbus reference model described in IEC 61158 1.

The application service is provided by the application protocol making use of the services available from the data-link or other immediately lower layer. This document defines the application service characteristics that fieldbus applications and/or system management can exploit.

Throughout the set of fieldbus standards, the term ´service´ refers to the abstract capability provided by one layer of the OSI Basic Reference Model to the layer immediately above. Thus, the application layer service defined in this document is a conceptual architectural service, independent of administrative and implementation divisions.