BS EN 61158-6-18:2012

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Abstract syntax
5 Transfer syntax
6 Structure of FAL protocol state machines
7 AP-context state machine
8 FAL service protocol machine (FSPM)
9 AR protocol machine (ARPM)
10 DLL mapping protocol machine (DMPM)
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 application programs in an automation environment and material specific to Type 18 fieldbus.

IEC 61158-6-18:2010(E) specifies the protocol of the Type 18 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545). It defines the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5-18:2010, and the externally visible behavior associated with their transfer. This second edition cancels and replaces the first edition published in 2007 and constitutes a technical revision. The main changes with respect to the previous edition are:
- editorial corrections;
- addition of cyclic data segmenting.