IEC 61784-3-1:2007

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

IEC 61784-3-1:2007 specifies a safety communication layer (services and protocol) based on CPF 1 of IEC 61784-1 and IEC 61158 Type 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 bilingual version (2014-12) corresponds to the English version, published in 2007-12.

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

L'IEC 61784-5-6:2007 définit une couche de communication relative à la sécurité (services et protocole) fondée sur la CPF 1 de la CEI 61784-1 et les types 1 et 9 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. La présente version bilingue (2014-12) correspond à la version anglaise monolingue publiée en 2007-12.

General Information

• Status: Published
• Publication Date: 13-Dec-2007
• 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: 29-Jun-2010

Relations

• Revised: IEC 61784-3-1:2010 - 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 1.0 2007-12
INTERNATIONAL
STANDARD
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
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,

please contact the address below or your local IEC member National Committee for further information.

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IEC 61784-3-1
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 3-1: Functional safety fieldbuses – Additional specifications for CPF 1

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 35.100.05 25.040.40 ISBN 2-8318-9398-4

– 2 – 61784-3-1 © IEC:2007(E)
CONTENTS
FOREWORD.6

INTRODUCTION.8

1 Scope.11

2 Normative references .11

3 Terms, definitions, symbols, abbreviated terms and conventions .12

3.1 Terms and definitions .12

3.1.1 Common terms and definitions .12

3.1.2 CPF 1: Additional terms and definitions .16
3.2 Symbols and abbreviated terms.17
3.2.1 Common symbols and abbreviated terms .17
3.2.2 CPF 1: Additional symbols and abbreviated terms .18
3.3 Conventions .18
3.3.1 State Diagrams.18
3.3.2 Use of colors in figures.19
4 Overview of FSCP 1/1 (FOUNDATION Fieldbus™ SIS) .20
4.1 General .20
4.2 Key concepts of FSCP 1/1.21
4.2.1 Black channel .21
4.2.2 Connection key.21
4.2.3 Cross-check .21
4.2.4 FSCP 1/1.21
4.2.5 Programmable electronic system .21
4.2.6 Queuing delays .21
4.2.7 Redundancy .22
4.2.8 SIL environment .22
4.3 Key components of FSCP 1/1.22
4.3.1 Overview .22
4.3.2 Black channel .22
4.4 Relationship to the ISO OSI basic reference model .23
5 General .23
5.1 External documents providing specifications for the profile.23
5.2 Safety functional requirements .23

5.2.1 Requirements for functional safety.23
5.2.2 Functional constraints.24
5.2.3 Device manufacturer requirements .24
5.3 Safety measures .25
5.3.1 Sequence number .25
5.3.2 Time stamp .25
5.3.3 Time expectation .25
5.3.4 Connection authentication .25
5.3.5 Data integrity assurance.25
5.3.6 Redundancy with cross checking .25
5.3.7 Different data integrity assurance systems .25
5.3.8 Relationships between errors and safety measures .25
5.4 Safety communication layer structure .26
5.4.1 Network topology and device connectivity.26

61784-3-1 © IEC:2007(E) – 3 –
5.4.2 Device architecture.26

5.5 Relationships with FAL (and DLL, PhL) .27

5.5.1 General .27

5.5.2 Data Types .28

6 Safety communication layer services .28

6.1 Application Process (AP).28

6.1.1 Overview .28

6.1.2 Network visible objects .29

6.1.3 Application layer interface .29

6.1.4 Object dictionary .29
6.1.5 Application program directory .29
6.2 Function block application processes .29
6.2.1 General .29
6.2.2 Function block model.29
6.2.3 Application process .32
6.3 Device to device communications.34
6.3.1 General .34
6.3.2 Client/server .34
6.3.3 Publisher/subscriber .35
6.3.4 Report distribution .35
6.3.5 FBAP operation in a linking device .35
6.3.6 System management kernel protocol (SMKP) communications .35
6.4 Profiles.35
6.4.1 General .35
6.4.2 FSCP 1/1 profile .35
6.5 Device descriptions .36
6.6 Common file formats .37
6.7 Configuration information .37
6.7.1 Overview .37
6.7.2 Level 1 configuration: manufacturer device definition.37
6.7.3 Level 2 configuration: network definition .37
6.7.4 Level 3 configuration: distributed application definition .37
6.7.5 Level 4 configuration: device configuration .37
7 Safety communication layer protocol .37
7.1 Safety PDU format .37

7.1.1 General .37
7.1.2 Safety communication layer CRC .38
7.1.3 Black channel time synchronization monitoring.38
7.1.4 Sequence number .38
7.1.5 Virtual header.39
7.1.6 Connection key.39
7.1.7 Redundancy and cross-check .40
7.2 Protocol extensions for use in safety-related systems.40
7.2.1 Overview .40
7.2.2 Publisher-subscriber interactions.40
7.2.3 Client-server interactions.46
7.2.4 Time synchronization.51
7.2.5 Device start-up .52
7.3 Communications entity .52

– 4 – 61784-3-1 © IEC:2007(E)
7.3.1 General .52

7.3.2 Network management.52

7.3.3 FMS .52

7.3.4 H1 stack .52

8 Safety communication layer management.53

8.1 Overview .53

8.2 SMK communications .53

8.3 FMS services .53

8.4 SMK services .
...

IEC 61784-3-1 ®
Edition 1.0 2007-12
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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The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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IEC 61784-3-1 ®
Edition 1.0 2007-12
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
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-1985-0

– 2 – IEC 61784-3-1:2007 © IEC 2007
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 11
2 Normative references . 11
3 Terms, definitions, symbols, abbreviated terms and conventions . 12
3.1 Terms and definitions . 12
3.1.1 Common terms and definitions . 12
3.1.2 CPF 1: Additional terms and definitions . 16
3.2 Symbols and abbreviated terms. 17
3.2.1 Common symbols and abbreviated terms . 17
3.2.2 CPF 1: Additional symbols and abbreviated terms . 18
3.3 Conventions . 18
3.3.1 State Diagrams . 18
3.3.2 Use of colors in figures . 19
4 Overview of FSCP 1/1 (FOUNDATION Fieldbus™ SIS) . 20
4.1 General . 20
4.2 Key concepts of FSCP 1/1 . 21
4.2.1 Black channel . 21
4.2.2 Connection key . 21
4.2.3 Cross-check . 21
4.2.4 FSCP 1/1 . 21
4.2.5 Programmable electronic system . 21
4.2.6 Queuing delays . 21
4.2.7 Redundancy . 22
4.2.8 SIL environment . 22
4.3 Key components of FSCP 1/1 . 22
4.3.1 Overview . 22
4.3.2 Black channel . 22
4.4 Relationship to the ISO OSI basic reference model . 23
5 General . 23
5.1 External documents providing specifications for the profile . 23
5.2 Safety functional requirements . 23
5.2.1 Requirements for functional safety. 23
5.2.2 Functional constraints. 24
5.2.3 Device manufacturer requirements . 24
5.3 Safety measures . 25
5.3.1 Sequence number . 25
5.3.2 Time stamp . 25
5.3.3 Time expectation . 25
5.3.4 Connection authentication . 25
5.3.5 Data integrity assurance . 25
5.3.6 Redundancy with cross checking . 25
5.3.7 Different data integrity assurance systems . 25
5.3.8 Relationships between errors and safety measures . 25
5.4 Safety communication layer structure . 26
5.4.1 Network topology and device connectivity . 26

5.4.2 Device architecture . 26
5.5 Relationships with FAL (and DLL, PhL) . 27
5.5.1 General . 27
5.5.2 Data Types . 28
6 Safety communication layer services . 28
6.1 Application Process (AP) . 28
6.1.1 Overview . 28
6.1.2 Network visible objects . 29
6.1.3 Application layer interface . 29
6.1.4 Object dictionary . 29
6.1.5 Application program directory . 29
6.2 Function block application processes . 29
6.2.1 General . 29
6.2.2 Function block model . 29
6.2.3 Application process . 32
6.3 Device to device communications . 34
6.3.1 General . 34
6.3.2 Client/server . 34
6.3.3 Publisher/subscriber . 35
6.3.4 Report distribution . 35
6.3.5 FBAP operation in a linking device . 35
6.3.6 System management kernel protocol (SMKP) communications . 35
6.4 Profiles .
...