IEC 61784-3-1:2010

Industrial communication networks - Profiles - Part 3-1: Functional safety fieldbuses - Additional specifications for CPF 1

IEC 61784-3-1:2010 specifies a safety communication layer (services and protocol) based on CPF 1 of IEC 61784-1 and IEC 61158 Types 1 and 9. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This second edition cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. The main changes with respect to the previous edition are:
- updates in relation with changes in IEC 61784-3;
- adjustment of Figure 5;
- change of sequence number from two octets to four octets in 7.2.2 to match the final protocol from the consortium;
- addition of details for time synchronization in 7.2.4;
- addition of information for safety response time in 9.3;
- addition of information in constraints for calculation of system characteristics in 9.5.

Réseaux de communication industriels - Profils - Partie 3-1: Bus de terrain à sécurité fonctionnelle - Spécifications complémentaires pour le CPF 1

L'IEC 61784-3-1:2010 spécifie une couche de communication de sécurité (services et protocole) basée sur la CPF 1 de l’IEC 61784 1 et l’IEC 61158 Types 1 et 9. Elle identifie les principes de communication de sécurité fonctionnelle définis dans l’IEC 61784 3 qui sont pertinents pour cette couche de communication de sécurité.

General Information

• Status: Published
• Publication Date: 28-Jun-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 12 - TC 65/SC 65C/WG 12
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2010
• Completion Date: 29-Jun-2010

Relations

• Revises: IEC 61784-3-1:2007 - Industrial communication networks - Profiles - Part 3-1: Functional safety fieldbuses - Additional specifications for CPF 1
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61784-3-1 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 3-1: Functional safety fieldbuses – Additional specifications for CPF 1

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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IEC 61784-3-1 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 3-1: Functional safety fieldbuses – Additional specifications for CPF 1

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-973-9
– 2 – 61784-3-1 © IEC:2010(E)
CONTENTS
FOREWORD.7
0 Introduction .9
0.1 General .9
0.2 Patent declaration .11
1 Scope.12
2 Normative references .12
3 Terms, definitions, symbols, abbreviated terms and conventions .13
3.1 Terms and definitions .13
3.1.1 Common terms and definitions .14
3.1.2 CPF 1: Additional terms and definitions .18
3.2 Symbols and abbreviated terms.19
3.2.1 Common symbols and abbreviated terms .19
3.2.2 CPF 1: Additional symbols and abbreviated terms .19
3.3 Conventions .20
3.3.1 State diagrams .20
3.3.2 Use of colors in figures.21
4 Overview of FSCP 1/1 (FOUNDATION Fieldbus™ SIS) .21
4.1 General .21
4.2 Key concepts of FSCP 1/1.22
4.2.1 Black channel .22
4.2.2 Connection key.22
4.2.3 Cross-check .23
4.2.4 FSCP 1/1.23
4.2.5 Programmable electronic system .23
4.2.6 Queuing delays .23
4.2.7 Redundancy .23
4.2.8 SIL environment .23
4.3 Key components of FSCP 1/1.23
4.3.1 Overview .23
4.3.2 Black channel .24
4.4 Relationship to the ISO OSI basic reference model .25
5 General .25
5.1 External documents providing specifications for the profile.25
5.2 Safety functional requirements .25
5.2.1 Requirements for functional safety.25
5.2.2 Functional constraints.26
5.2.3 Device manufacturer requirements .26
5.3 Safety measures .26
5.3.1 Sequence number .26
5.3.2 Time stamp .26
5.3.3 Time expectation .26
5.3.4 Connection authentication .26
5.3.5 Data integrity assurance.26
5.3.6 Redundancy with cross checking .27
5.3.7 Different data integrity assurance systems .27
5.3.8 Relationships between errors and safety measures .27

61784-3-1 © IEC:2010(E) – 3 –
5.4 Safety communication layer structure .27
5.4.1 Network topology and device connectivity.27
5.4.2 Device architecture.28
5.5 Relationships with FAL (and DLL, PhL) .29
5.5.1 General .29
5.5.2 Data types .29
6 Safety communication layer services .30
6.1 Application Process (AP).30
6.1.1 Overview .30
6.1.2 Network visible objects .30
6.1.3 Application layer interface .30
6.1.4 Object dictionary .30
6.1.5 Application program directory .30
6.2 Function block application processes .31
6.2.1 General .31
6.2.2 Function block model.31
6.2.3 Application process .33
6.3 Device to device communications.36
6.3.1 General .36
6.3.2 Client/server .36
6.3.3 Publisher/subscriber .37
6.3.4 Report distribution .37
6.3.5 FBAP operation in a linking device .37
6.3.6 System management kernel protocol (SMKP) communications .37
6.4 Profiles.37
6.4.1 General .37
6.4.2 FSCP 1/1 profile .37
6.5 Device descriptions .38
6.6 Common file formats .38
6.7 Configuration information .39
6.7.1 Overview .39
6.7.2 Level 1 configuration: manufacturer device definition.39
6.7.3 Level 2 configuration: network definition .39
6.7.4 Level 3 configuration: distributed application definition .39
6.7.5 Level 4 configuration: device configuration .39
7 Safety communication layer protocol .39
7.1 Safety PDU format .39
7.1.1 General .39
7.1.2 Safety communication layer CRC .39
7.1.3 Black channel time synchronization monitoring.40
7.1.4 Sequence number .40
7.1.5 Virtual header.41
7.1.6 Connection key.41
7.1.7 Redundancy and cross-check .41
7.2 Protocol extensions for use in safety-related systems.42
7.2.1 Overview .42
7.2.2 Publisher-subscriber interactions.42
7.2.3 Client-server interactions.47
7.2.4 Time synchronization.53

– 4 – 61784-3-1 © IEC:2010(E)
7.2.5 Device start-up .54
7.3 Communications entity .54
7.3.1 General .54
7.3.2 Network management.54
7.3.3 FMS .54
7.3.4 H1 stack .54
8 Safety communication layer management.55
8.1 Overview .55
8.2 SMK communications .
...

IEC 61784-3-1 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 3-1: Functional safety fieldbuses – Additional specifications for CPF 1

Réseaux de communication industriels – Profils –
Partie 3-1: Bus de terrain à sécurité fonctionnelle – Spécifications
complémentaires pour le CPF 1
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 61784-3-1 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

Part 3-1: Functional safety fieldbuses – Additional specifications for CPF 1

Réseaux de communication industriels – Profils –

Partie 3-1: Bus de terrain à sécurité fonctionnelle – Spécifications

complémentaires pour le CPF 1
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-9727-8

– 2 – IEC 61784-3-1:2010  IEC 2010
CONTENTS
FOREWORD . 7
0 Introduction . 9
0.1 General . 9
0.2 Patent declaration . 11
1 Scope . 12
2 Normative references . 12
3 Terms, definitions, symbols, abbreviated terms and conventions . 13
3.1 Terms and definitions . 13
3.1.1 Common terms and definitions . 14
3.1.2 CPF 1: Additional terms and definitions . 18
3.2 Symbols and abbreviated terms. 19
3.2.1 Common symbols and abbreviated terms . 19
3.2.2 CPF 1: Additional symbols and abbreviated terms . 20
3.3 Conventions . 20
3.3.1 State diagrams . 20
3.3.2 Use of colors in figures . 21
4 Overview of FSCP 1/1 (FOUNDATION Fieldbus™ SIS) . 22
4.1 General . 22
4.2 Key concepts of FSCP 1/1 . 23
4.2.1 Black channel . 23
4.2.2 Connection key . 23
4.2.3 Cross-check . 23
4.2.4 FSCP 1/1 . 23
4.2.5 Programmable electronic system . 23
4.2.6 Queuing delays . 23
4.2.7 Redundancy . 24
4.2.8 SIL environment . 24
4.3 Key components of FSCP 1/1 . 24
4.3.1 Overview . 24
4.3.2 Black channel . 24
4.4 Relationship to the ISO OSI basic reference model . 25
5 General . 25
5.1 External documents providing specifications for the profile . 25
5.2 Safety functional requirements . 25
5.2.1 Requirements for functional safety. 25
5.2.2 Functional constraints. 26
5.2.3 Device manufacturer requirements . 26
5.3 Safety measures . 26
5.3.1 Sequence number . 26
5.3.2 Time stamp . 27
5.3.3 Time expectation . 27
5.3.4 Connection authentication . 27
5.3.5 Data integrity assurance . 27
5.3.6 Redundancy with cross checking . 27
5.3.7 Different data integrity assurance systems . 27
5.3.8 Relationships between errors and safety measures . 27

5.4 Safety communication layer structure . 28
5.4.1 Network topology and device connectivity . 28
5.4.2 Device architecture . 28
5.5 Relationships with FAL (and DLL, PhL) . 29
5.5.1 General . 29
5.5.2 Data types . 30
6 Safety communication layer services . 30
6.1 Application Process (AP) . 30
6.1.1 Overview . 30
6.1.2 Network visible objects . 31
6.1.3 Application layer interface . 31
6.1.4 Object dictionary . 31
6.1.5 Application program directory . 31
6.2 Function block application processes . 31
6.2.1 General . 31
6.2.2 Function block model . 31
6.2.3 Application process . 34
6.3 Device to device communications . 36
6.3.1 General . 36
6.3.2 Client/server . 36
6.3.3 Publisher/subscriber . 37
6.3.4 Report distribution . 37
6.3.5 FBAP operation in a linking device . 37
6.3.6 System management kernel protocol (SMKP) communications . 37
6.4 Profiles . 37
6.4.1 General . 37
6.4.2 FSCP 1/1 profile . 37
6.5 Device descriptions . 38
6.6 Common file formats .
...