DIN EN 61158-3-18:2008-09

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 Common symbols and abbreviations
  3.5 Conventions
4 Data link services
  4.1 Overview
  4.2 Primitives of the DLS
  4.3 CYCLIC-DATA-UPDATE
  4.4 ACYCLIC-DATA-TRANSMIT
  4.5 MASTER-TRANSMISSION-TRIGGER
5 DL-management Services
  5.1 Overview
  5.2 Required services
  5.3 ESTABLISH-MASTER-POLLED
  5.4 ESTABLISH-SLAVE-POLLED
  5.5 ESTABLISH-MASTER-PACKED
  5.6 ESTABLISH-SLAVE-PACKED
  5.7 RELEASE-CONNECTION
  5.8 SUSPEND-CONNECTION
  5.9 RESUME-CONNECTION
  5.10 ACTIVATE-STANDBY-MASTER
  5.11 ERROR
Bibliography
Annex ZA (normative) - Normative references to
                       international publications
                       with their corresponding
                       European publications

Gives common elements for basic time-critical and non-time-critical messaging communications between devices in an automation environment and material specific to Type 18 fieldbus.