IEC 61784-3-3:2010

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

IEC 61784-3-3:2010 specifies a safety communication layer (services and protocol) based on CPF 3 of IEC 61784-1, IEC 61784-2 (CP 3/1, CP 3/2, CP 3/4, CP 3/5 and CP 3/6) and IEC 61158 Types 3 and 10. 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;
- introduction of a secondary watchdog timer (F_WD_Time_2) to cover the use cases 'configuration-in-run', or 'maintenance of fault tolerance systems', or both (7.1.3, 7.2.3, 7.2.6, 8.1.1, 8.1.4, 8.1.6.2);
- missing GSDL definitions conveyed from other approved documents (8.3.2.1);
- missing CRC signature calculation for a GSD conveyed from other approved documents (8.3.3.3);
- constraints for the parameter value assignment of the primary watchdog timer 'F_WD_Time' (9.3.3);
- identification of the safety parameterization state of an F-Device or F-Module via field IM4 (signature) within the I&M functions (9.6.2);
- updated documents in bibliography. This bilingual version (2012-02) corresponds to the monolingual English version, published in 2010-06.

Réseaux de communication industriels - Profils - Partie 3-3: Bus de terrain de sécurité fonctionnelle - Spécifications supplémentaires pour CPF 3

La CEI 61784-3-3:2010 spécifie une couche de communication relative à la sécurité (services et protocole) fondée sur la CPF 3 de la CEI 61784-1 et les Types 3 et 10 de la CEI 61784-2 (CP 3/1, CP 3/2, CP 3/4, CP 3/5 et CP 3/6) et de la CEI 61158. Elle identifie les principes applicables aux communications de sécurité fonctionnelle définies dans la CEI 61784-3, et appropriés à cette couche de communication de sécurité. Cette seconde édition annule et remplace la première édition parue en 2007, dont elle constitue une révision technique. Les principales modifications par rapport à l'édition précédente sont énumérées ci-dessous:
- mises à jour par rapport aux changements apportés à la CEI 61784-3;
- présentation d'un temporisateur secondaire (F_WD_Time_2) couvrant l'utilisation des cas de "configuration en cours" et/ou de "maintenance des systèmes de tolérance aux pannes" (7.1.3, 7.2.3, 7.2.6, 8.1.1, 8.1.4, 8.1.6.2);
- définitions GSDL manquantes provenant d'autres documents approuvés (8.3.2.1);
- calcul de signature CRC manquant pour un GSD provenant d'autres documents approuvés (8.3.3.3);
- contraintes d'attribution de valeur de paramètre du temporisateur principal F_WD_Time (9.3.3);
- identification de l'état de paramétrage de sécurité d'un dispositif F ou d'un module F grâce au champ IM4 (signature) des fonctions I&M (9.6.2);
- documents mis à jour dans la bibliographie. La présente version bilingue (2012-02) correspond à la version anglaise monolingue publiée en 2010-06.

General Information

• Status: Published
• Publication Date: 28-Jun-2010
• ICS: 19.040 - Environmental testing
• 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: DELPUB - Deleted Publication
• Completion Date: 12-Jul-2016

Relations

• Revised: IEC 61784-3-3:2016 - Industrial communication networks - Profiles - Part 3-3: Functional safety fieldbuses - Additional specifications for CPF 3
• Effective Date: 05-Sep-2023
• Revises: IEC 61784-3-3:2007 - Industrial communication networks - Profiles - Part 3-3: Functional safety fieldbuses - Additional specifications for CPF 3
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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

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

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XF
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-978-4
– 2 – 61784-3-3 © IEC:2010(E)
CONTENTS
FOREWORD.8
0 Introduction .10
0.1 General .10
0.2 Patent declaration .12
1 Scope.13
2 Normative references .13
3 Terms, definitions, symbols, abbreviated terms and conventions .15
3.1 Terms and definitions .15
3.1.1 Common terms and definitions .15
3.1.2 CPF 3: Additional terms and definitions .20
3.2 Symbols and abbreviated terms.23
3.2.1 Common symbols and abbreviated terms .23
3.2.2 CPF 3: Additional symbols and abbreviated terms .24
3.3 Conventions .25
4 Overview of FSCP 3/1 (PROFIsafe™) .25
5 General .28
5.1 External documents providing specifications for the profile.28
5.2 Safety functional requirements .28
5.3 Safety measures .29
5.4 Safety communication layer structure .30
5.4.1 Principle of FSCP 3/1 safety communications .30
5.4.2 CPF 3 communication structures .31
5.5 Relationships with FAL (and DLL, PhL) .34
5.5.1 Device model.34
5.5.2 Application and communication relationships.34
5.5.3 Message format.36
5.5.4 Data types .36
6 Safety communication layer services .37
6.1 F-Host services .37
6.2 F-Device services.39
6.3 Diagnosis .41
6.3.1 Safety alarm generation.41
6.3.2 F-Device safety layer diagnosis including the iPar-Server.41
7 Safety communication layer protocol .42
7.1 Safety PDU format .42
7.1.1 Safety PDU structure.42
7.1.2 Safety I/O data .43
7.1.3 Status and Control Byte.43
7.1.4 (Virtual) Consecutive Number.44
7.1.5 CRC2 Signature .46
7.1.6 Appended standard I/O data .47
7.2 FSCP 3/1 behavior .47
7.2.1 General .47
7.2.2 F-Host state diagram .47
7.2.3 F-Device state diagram.51
7.2.4 Sequence diagrams.55

61784-3-3 © IEC:2010(E) – 3 –
7.2.5 Timing diagram for a counter reset .61
7.2.6 Monitoring of safety times.61
7.3 Reaction in the event of a malfunction.64
7.3.1 Repetition.64
7.3.2 Loss .65
7.3.3 Insertion .65
7.3.4 Incorrect sequence .65
7.3.5 Corruption of safety data .65
7.3.6 Delay.66
7.3.7 Masquerade .66
7.3.8 Memory failures within switches .66
7.3.9 Network boundaries and router.67
7.4 F-Startup and change coordination.68
7.4.1 Standard startup procedure .68
7.4.2 iParameter assignment deblocking .68
8 Safety communication layer management.69
8.1 F-Parameter .69
8.1.1 Summary.69
8.1.2 F_Source/Destination_Address (codename) .69
8.1.3 F_WD_Time (F-Watchdog time).69
8.1.4 F_WD_Time_2 (secondary F-Watchdog time).70
8.1.5 F_Prm_Flag1 (Parameters for the safety layer management) .70
8.1.6 F_Prm_Flag2 (Parameters for the safety layer management) .72
8.1.7 F_iPar_CRC (value of iPar_CRC across iParameters) .73
8.1.8 F_Par_CRC (CRC1 across F-Parameters) .73
8.1.9 Structure of the F-Parameter record data object .74
8.1.10 F-Data fraction .74
8.2 iParameter and iPar_CRC .74
8.3 Safety parameterization.75
8.3.1 Objectives .75
8.3.2 GSDL and GSDML safety extensions.76
8.3.3 Securing safety parameters and GSD data .77
8.4 Safety configuration .80
8.4.1 Securing the safety I/O data description (CRC7).80
8.4.2 DataItem data type section examples .81
8.5 Data type information usage.84
8.5.1 F-Channel driver.84
8.5.2 Rules for standard F-Channel drivers .85
8.5.3 Recommendations for F-Channel drivers .86
8.6 Safety parameter assignment mechanisms.87
8.6.1 F-Parameter assignment .87
8.6.2 General iParameter assignment.87
8.6.3 System integration requirements for iParameterization tools.88
8.6.4 iPar-Server .90
9 System requirements.99
9.1 Indicators and switches .99
9.2 Installation guidelines.99
9.3 Safety function response time .99
9.3.1 Model .99

– 4 – 61784-3-3 © IEC:2010(E)
9.3.2 Calculation and optimization.101
9.3.3 Adjustment of watchdog times for FSCP 3/1 .103
9.3.4 Engineering tool support.104
9.3.5 Retries (repetition of messages) .104
9.4 Duration of demands .105
9.5 Constraints for the calculation of system characteristics. 106
9.5.1 Probabilistic considerations .106
9.5.2 Safety related constraints .108
9.5.3 Non safety related constraints (availability).109
9.6 Maintenance.109
9.6.1 F-Module commissioning / replacem
...

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

Réseaux de communication industriels – Profils –
Partie 3-3: Bus de terrain de sécurité fonctionnelle – Spécifications
supplémentaires pour CPF 3
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 61784-3-3 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

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

Réseaux de communication industriels – Profils –

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

supplémentaires pour CPF 3
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XF
CODE PRIX
ICS 25.040.40, 35.100.05 ISBN 978-2-88912-943-0

– 2 – 61784-3-3  IEC:2010
CONTENTS
FOREWORD . 8
0 Introduction . 10
0.1 General . 10
0.2 Patent declaration . 12
1 Scope . 13
2 Normative references . 13
3 Terms, definitions, symbols, abbreviated terms and conventions . 15
3.1 Terms and definitions . 15
3.1.1 Common terms and definitions . 15
3.1.2 CPF 3: Additional terms and definitions . 20
3.2 Symbols and abbreviated terms. 23
3.2.1 Common symbols and abbreviated terms . 23
3.2.2 CPF 3: Additional symbols and abbreviated terms . 24
3.3 Conventions . 25
4 Overview of FSCP 3/1 (PROFIsafe™) . 25
5 General . 28
5.1 External documents providing specifications for the profile . 28
5.2 Safety functional requirements . 28
5.3 Safety measures . 29
5.4 Safety communication layer structure . 30
5.4.1 Principle of FSCP 3/1 safety communications . 30
5.4.2 CPF 3 communication structures . 31
5.5 Relationships with FAL (and DLL, PhL) . 34
5.5.1 Device model . 34
5.5.2 Application and communication relationships . 34
5.5.3 Message format . 36
5.5.4 Data types . 36
6 Safety communication layer services . 37
6.1 F-Host services . 37
6.2 F-Device services . 39
6.3 Diagnosis . 41
6.3.1 Safety alarm generation . 41
6.3.2 F-Device safety layer diagnosis including the iPar-Server . 41
7 Safety communication layer protocol . 42
7.1 Safety PDU format . 42
7.1.1 Safety PDU structure . 42
7.1.2 Safety I/O data . 43
7.1.3 Status and Control Byte . 43
7.1.4 (Virtual) Consecutive Number . 44
7.1.5 CRC2 Signature . 46
7.1.6 Appended standard I/O data . 47
7.2 FSCP 3/1 behavior . 47
7.2.1 General . 47
7.2.2 F-Host state diagram . 47
7.2.3 F-Device state diagram . 51
7.2.4 Sequence diagrams . 55

61784-3-3  IEC:2010 – 3 –
7.2.5 Timing diagram for a counter reset . 61
7.2.6 Monitoring of safety times . 61
7.3 Reaction in the event of a malfunction . 64
7.3.1 Repetition . 64
7.3.2 Loss . 65
7.3.3 Insertion . 65
7.3.4 Incorrect sequence . 65
7.3.5 Corruption of safety data . 65
7.3.6 Delay . 66
7.3.7 Masquerade . 66
7.3.8 Memory failures within switches . 66
7.3.9 Network boundaries and router . 67
7.4 F-Startup and change coordination . 68
7.4.1 Standard startup procedure . 68
7.4.2 iParameter assignment deblocking . 68
8 Safety communication layer management . 69
8.1 F-Parameter . 69
8.1.1 Summary . 69
8.1.2 F_Source/Destination_Address (codename) . 69
8.1.3 F_WD_Time (F-Watchdog time) . 69
8.1.4 F_WD_Time_2 (secondary F-Watchdog time) . 70
8.1.5 F_Prm_Flag1 (Parameters for the safety layer management) . 70
8.1.6 F_Prm_Flag2 (Parameters for the safety layer management) . 72
8.1.7 F_iPar_CRC (value of iPar_CRC across iParameters) . 73
8.1.8 F_Par_CRC (CRC1 across F-Parameters) . 73
8.1.9 Structure of the F-Parameter record data object . 74
8.1.10 F-Data fraction . 74
8.2 iParameter and iPar_CRC . 74
8.3 Safety parameterization. 75
8.3.1 Objectives . 75
8.3.2 GSDL and GSDML safety extensions. 76
8.3.3 Securing safety parameters and GSD data . 77
8.4 Safety configuration . 80
8.4.1 Securing the safet
...