BS EN 61158-3-8:2008

INTRODUCTION
1 Scope
  1.1 Overview
  1.2 Specifications
  1.3 Conformance
2 Normative references
3 Terms, definitions, symbols, abbreviations and conventions
  3.1 Reference model terms and definitions
  3.2 Service convention terms and definitions
  3.3 Common data-link service terms and definitions
  3.4 Additional Type 8 data-link specific definitions
  3.5 Common symbols and abbreviations
  3.6 Common conventions
4 Data-link service and concepts
  4.1 Overview
  4.2 Sequence of primitives
  4.3 Connection-mode data-link services
5 DL-management service
  5.1 Scope
  5.2 Facilities of the DL-management service
  5.3 Overview of services
  5.4 Overview of interactions
  5.5 Detailed specification of services and interactions
Bibliography
Annex ZA (normative) - Normative references to international
                       publications with their corresponding
                       European publications

Describes common elements for basic time-critical messaging communications between devices in an automation environment.

IEC 61158-3-8:2007 defines in an abstract way the externally visible service provided by the Type 8 fieldbus data-link layer in terms of:
- 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. This first edition and its companion parts of the IEC 61158-3 subseries cancel and replace IEC 61158-3:2003. This edition of this part constitutes an editorial revision. This edition includes the following changes:
- 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 3-1, 3-2,..., 3-19. This bilingual version (2013-07) corresponds to the monolingual English version, published in 2007-12.