IEC 61784-2-12:2023

IEC 61784-2-12 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 2-12: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –
CPF 12
Réseaux industriels – Profils –
Partie 2-12: Profils de bus de terrain supplémentaires pour les réseaux en temps
réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 12

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IEC 61784-2-12 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 2-12: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –

CPF 12
Réseaux industriels – Profils –

Partie 2-12: Profils de bus de terrain supplémentaires pour les réseaux en

temps réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 12

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6900-8

– 2 – IEC 61784-2-12:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms and acronyms . 8
3.3 Symbols . 8
3.4 Conventions . 8 ®
4 CPF 12 (EtherCAT ) – RTE communication profiles . 9
4.1 General overview . 9
4.2 CP 12/1 . 9
4.2.1 Physical layer . 9
4.2.2 Data-link layer . 11
4.2.3 Application layer . 14
4.2.4 Performance indicator selection . 17
4.3 CP 12/2 . 20
4.3.1 Physical layer . 20
4.3.2 Data-link layer . 20
4.3.3 Application layer . 24
4.3.4 Performance indicator selection . 26
Bibliography . 29

Table 1 – CPF 12 symbols . 8
Table 2 – CP 12/1: PhL selection of physical layer from ISO/IEC/IEEE 8802-3:2021 . 9
Table 3 – CP 12/1: PhL selection of a power integrated physical layer from
IEC 61158-2 . 11
Table 4 – CP 12/1: DLL service selection . 11
Table 5 – CP 12/1: DLL protocol selection . 12
Table 6 – CP 12/1: DLL service selection . 13
Table 7 – CP 12/1: DLL protocol selection . 13
Table 8 – CP 12/1: AL service selection . 15
Table 9 – CP 12/1: AL protocol selection . 15
Table 10 – CP 12/1: AL service selection . 16
Table 11 – CP 12/1: AL protocol selection . 17
Table 12 – CP 12/1: PI overview . 17
Table 13 – CP 12/1: PI dependency matrix . 18
Table 14 – CP 12/1: PI ranges . 18
Table 15 – CP 12/1: Consistent set of PIs for mid size automation systems . 20
Table 16 – CP 12/2: DLL service selection . 20
Table 17 – CP 12/2: DLL protocol selection . 21
Table 18 – CP 12/2: DLL service selection . 22
Table 19 – CP 12/2: DLL protocol selection . 23
Table 20 – CP 12/2: AL service selection . 24

Table 21 – CP 12/2: AL protocol selection . 24
Table 22 – CP 12/2: AL service selection . 25
Table 23 – CP 12/2: AL protocol selection . 26
Table 24 – CP 12/2: PI overview . 27
Table 25 – CP 12/2: PI dependency matrix . 27
Table 26 – CP 12/2: Consistent set of PIs . 28

– 4 – IEC 61784-2-12:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 2-12: Additional real-time fieldbus profiles
based on ISO/IEC/IEEE 8802-3 –
CPF 12
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