IEC 61158-3-21 : 1.0

Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms, definitions, symbols, abbreviations, <br>&nbsp;&nbsp;and conventions<br>4 Data-link layer services and concepts<br>5 Data link management services<br>6 MAC control service<br>7 Ph-control service<br>Bibliography

Abstract

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

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 65
Supersedes	IEC PAS 62573 : 1.0