IEC 61784-1-8:2023

IEC 61784-1-8 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 1-8: Fieldbus profiles – Communication Profile Family 8

Réseaux industriels – Profils –
Partie 1-8: Profils de bus de terrain – Famille de profils de communication 8

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IEC 61784-1-8 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 1-8: Fieldbus profiles – Communication Profile Family 8

Réseaux industriels – Profils –

Partie 1-8: Profils de bus de terrain – Famille de profils de communication 8

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6625-0

– 2 – IEC 61784-1-8:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviated terms, symbols, and conventions . 8
3.1 Terms and definitions . 8
3.2 Abbreviations and symbols . 8
3.2.1 Common abbreviations and symbols . 8
3.2.2 Other abbreviations and symbols . 8
3.3 Conventions . 8
4 CPF 8 (CC-Link) . 8
4.1 General overview . 8
4.1.1 General . 8
4.1.2 Profile 8/1 . 9
4.1.3 Profile 8/2 . 9
4.1.4 Profile 8/3 . 9
4.2 CP 8/1 . 10
4.2.1 Physical layer . 10
4.2.2 Data-link layer . 11
4.2.3 Application layer . 14
4.3 CP 8/2 . 17
4.3.1 Physical layer . 17
4.3.2 Data-link layer . 17
4.3.3 Application layer . 17
4.4 CP 8/3 . 17
4.4.1 Physical layer . 17
4.4.2 Data-link layer . 19
4.4.3 Application layer . 21
Annex A (informative) CPF 8 (CC-LINK) communication concepts . 24
A.1 Basic characteristics . 24
A.1.1 Basic characteristics overview . 24
A.1.2 Initial cycle . 24
A.1.3 Refresh cycle . 24
A.1.4 Return cycle . 24
A.2 Variants . 24
Bibliography . 26

Table 1 – CP 8/1 transmission support level . 9
Table 2 – CP 8/1 PhL selection . 10
Table 3 – CP 8/1 DLL services selection . 12
Table 4 – CP 8/1 DLL protocol selection . 13
Table 5 – CP 8/1 AL services selection . 15
Table 6 – CP 8/1 AL protocol selection . 16
Table 7 – CP 8/2 DLL protocol selection . 17
Table 8 – CP 8/3 PhL selection . 18

Table 9 – CP 8/3 DLL services selection . 19
Table 10 – CP 8/3 DLL protocol selection . 20
Table 11 – CP 8/3 AL services selection . 21
Table 12 – CP 8/3 AL protocol selection . 22

– 4 – IEC 61784-1-8:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 1-8: Fieldbus profiles –
Communication Profile Family 8

FOREWORD
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