EN 61158-3-11 : 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 Data-link service terms and definitions
  3.4 Symbols and abbreviations
  3.5 Common conventions
4 Data-link service and concept
  4.1 Overview
  4.2 General description of services
  4.3 TCC data service
  4.4 Detail description of the sporadic message data service
5 DL-management services
  5.1 General
  5.2 Facilities of the DL-management service
  5.3 Service of the DL-management
  5.4 Overview of interactions
  5.5 Detail specification of service and interactions
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

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