IEC 61784-2-4:2023

Industrial networks - Profiles - Part 2-4: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 - CPF 4

IEC 61784-2-4:2023 defines extensions of Communication Profile Family 4 (CPF 4) for Real-Time Ethernet (RTE). CPF 4 specifies a Real-Time Ethernet (RTE) communication profile (CP) and related network components based on the IEC 61158 series (Type 4), ISO/IEC/IEEE 8802-3 and other standards

Réseaux industriels - Profils - Partie 2-4: Profils de bus de terrain supplémentaires pour les réseaux en temps réel fondés sur l’ISO/IEC/IEEE 8802-3 - CPF 4

L’IEC 61784-2-4:2023 définit les extensions de la famille de profils de communication 4 (CPF 4) pour l’Ethernet en temps réel (RTE). La CPF 4 spécifie un profil de communication (CP) Ethernet en temps réel (RTE) et les composants de réseau connexes basés sur la série IEC 61158 (type 4), l’ISO/IEC/IEEE 8802-3 et d’autres normes.

General Information

• Status: Published
• Publication Date: 29-Mar-2023
• ICS: 35.100.20 - Data link layer
• ICS: 35.240.50 - IT applications in industry
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 9 - TC 65/SC 65C/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 31-Mar-2023
• Completion Date: 30-Mar-2023

Relations

• Replaces: IEC 61784-2:2019 - Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC/IEEE 8802-3
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61784-2-4 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 2-4: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –
CPF 4
Réseaux industriels – Profils –
Partie 2-4: Profils de bus de terrain supplémentaires pour les réseaux en temps
réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 4

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IEC 61784-2-4 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 2-4: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –

CPF 4
Réseaux industriels – Profils –

Partie 2-4: Profils de bus de terrain supplémentaires pour les réseaux en temps

réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 4

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6693-9

– 2 – IEC 61784-2-4:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms and acronyms . 8
3.3 Symbols . 8
3.4 Conventions . 9
4 CPF 4 (P-NET) – RTE communication profiles . 9
4.1 General overview . 9
4.2 CP 4/3, P-NET on IP . 9
4.2.1 Physical layer . 9
4.2.2 Data-link layer . 9
4.2.3 Application layer . 10
4.2.4 Performance indicator selection . 11
Annex A (informative) CPF 4/3 (P-NET on IP) – Performance Indicator calculation . 16
A.1 Application scenario . 16
A.2 Delivery time calculation . 16
A.3 Non-RTE throughput calculation . 18
A.4 Non time-base synchronization accuracy . 19
A.5 RTE throughput calculation . 20
A.6 CPF 4/3, Derivation of delivery time formula . 20
A.7 CPF 4/3, Ethernet characteristics . 22
Bibliography . 23

Figure A.1 – Application configuration . 16
Figure A.2 – Non-RTE throughput calculation . 18
Figure A.3 – Non time-base synchronization accuracy . 19

Table 1 – CPF 4 symbols . 8
Table 2 – CP 4/3: DLL service selection. 10
Table 3 – CP 4/3: DLL protocol selection . 10
Table 4 – CP 4/3: AL service selection . 11
Table 5 – CP 4/3: AL protocol selection . 11
Table 6 – CP 4/3: PI overview . 11
Table 7 – CP 4/3: PI dependency matrix . 12
Table 8 – CP 4/3: Consistent set of PIs . 14
Table 9 – Parameters for calculation of consistent set of PIs . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 2-4: Additional real-time fieldbus profiles
based on ISO/IEC/IEEE 8802-3 –
CPF 4
FOREWORD
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Attention is drawn to the fact that the use of some of the associated protocol types is restricted
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NOTE Combinations of protocol types are specified in the IEC 61784-1 series and the IEC 61784-2 series.
IEC 61784-2-4 has been prepared by subcommittee 65C: Industrial networks, of IEC technical
committee 65: Indust
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