IEC 61784-3-14:2010

Industrial communication networks - Profiles - Part 3-14: Functional safety fieldbuses - Additional specifications for CPF 14

IEC 61784-3-14:2010 specifies a safety communication layer (services and protocol) based on CPF 14 of IEC 61784-2 and IEC 61158 Type 14. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This bilingual version (2012-02) corresponds to the monolingual English version, published in 2010-06.

Réseaux de communication industriels - Profils - Partie 3-14: Bus de terrain de sécurité fonctionnelle - Spécifications supplémentaires pour CPF 14

La CEI 61784-3-14:2010 spécifie une couche de communication relative à la sécurité (services et protocole) fondée sur la CPF 14 de la CEI 61784-2 et le type 14 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 (2012-02) correspond à la version anglaise monolingue publiée en 2010-06.

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

Standards Content (Sample)

IEC 61784-3-14 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 3-14: Functional safety fieldbuses – Additional specifications for CPF 14

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 61784-3-14 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 3-14: Functional safety fieldbuses – Additional specifications for CPF 14

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-983-8
– 2 – 61784-3-14 © IEC:2010(E)
CONTENTS
FOREWORD.6
0 Introduction .8
0.1 General .8
0.2 Patent declaration .10
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 14: Additional terms and definitions .16
3.2 Symbols and abbreviated terms.16
3.2.1 Common symbols and abbreviated terms .16
3.2.2 CPF 14: Additional symbols and abbreviated terms .17
3.3 Conventions .17 ®
4 Overview of FSCP 14/1 (EPASafety ).18 ®
4.1 EPASafety .18
4.2 Principle of EPA safety communications.18
4.3 Safety function processing .19
5 General .19
5.1 External documents providing specifications for the profile.19
5.2 Safety functional requirements .20
5.3 Safety measures .20
5.4 Safety communication layer structure .21
5.4.1 Combination of standard communication and safety communication
systems.21
5.4.2 CP 14/1 safety communication structure.22
5.5 Relationships with FAL (and DLL, PhL) .23
5.5.1 Overview .23
5.5.2 Data types .23
6 Safety communication layer services .24
6.1 Overview .24
6.2 FSCP 14/1 object extensions.24
6.2.1 General .24
6.2.2 Functional safety communication management object.25
6.2.3 Functional Safety Link Object .26
6.2.4 Functional safety communication alert object.29
6.3 Extended services .30
6.3.1 General .30
6.3.2 SafetyCommunicationOpen .31
6.3.3 SafetyCommunicationClose.32
7 Safety communication layer protocol .34
7.1 Safety PDU format .34
7.1.1 General .34
7.1.2 APDU header structure.34
7.1.3 Functional safety PDU .34
7.2 Safety communication operation.36

61784-3-14 © IEC:2010(E) – 3 –
7.2.1 Sequence number .36
7.2.2 RelationKey.36
7.2.3 Feedback message .37
7.2.4 CRC-cross-check .37
7.2.5 Scheduling number.38
7.2.6 Time stamp .39
7.2.7 Time expectation .39
7.2.8 Time synchronization monitoring .39
7.2.9 Communication scheduling precision monitoring.39
7.3 Safety communication behaviour .39
7.3.1 Protocol state description of periodic data transmission.39
7.3.2 Protocol state description of non-periodic data transmission.41
7.3.3 Protocol state description of alert report for communication fault .46
7.3.4 Function description .49
7.4 Code .51
7.4.1 Object code .51
7.4.2 Service code .53
8 Safety communication layer management.59
8.1 Time synchronization diagnostics .59
8.1.1 Time synchronization process.59
8.1.2 Time synchronization management.60
8.2 CSME diagnostics .60
8.2.1 General .60
8.2.2 CSME diagnostics management .60
8.3 Communication fault management.61
8.3.1 Configuration management.61
8.3.2 Communication fault report process.61
9 System requirements.64
9.1 Indicators and switches .64
9.2 Installation guidelines.64
9.3 Safety function response time .64
9.3.1 General .64
9.3.2 Calculation of the network reaction time .65
9.4 Duration of demands .66
9.5 Constraints for calculation of system characteristics.66
9.6 Maintenance.67
9.7 Safety manual .67
10 Assessment.67
Annex A (informative) Additional information for functional safety communication
profiles of CPF 14.68
A.1 Hash function calculation.68
A.2 … .69
Annex B (informative) Information for assessment of the functional safety
communication profiles of CPF 14.70
Bibliography.71

Table 1 – Relationships between errors and safety measures .21
Table 2 – Data types used within FSCP 14/1 .24

– 4 – 61784-3-14 © IEC:2010(E)
Table 3 – FSCP 14/1 object extensions .24
Table 4 – Functional safety service extension.31
Table 5 – SafetyCommunicationOpen Service Parameters.31
Table 6 – SafetyCommunicationClose Service Parameters .33
Table 7 – Encoding of APDU Header .34
Table 8 – Structure of Functional Safety PDU (FSPDU) Header.35
Table 9 – CRC calculation polynomials .37
Table 10 – Functional safety communication state description .40
Table 11 – States and transitions of periodic data transmission .40
Table 12 – Functional safety communication states description .42
Tab
...

IEC 61784-3-14 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 3-14: Functional safety fieldbuses – Additional specifications for CPF 14

Réseaux de communication industriels – Profils –
Partie 3-14: Bus de terrain de sécurité fonctionnelle – Spécifications
supplémentaires pour CPF 14
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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International Standards for all electrical, electronic and related technologies.

About IEC publications
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latest edition, a corrigenda or an amendment might have been published.

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IEC 61784-3-14 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

Part 3-14: Functional safety fieldbuses – Additional specifications for CPF 14

Réseaux de communication industriels – Profils –

Partie 3-14: Bus de terrain de sécurité fonctionnelle – Spécifications

supplémentaires pour CPF 14
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 25.040.40, 35.100.05 ISBN 978-2-88912-946-1

– 2 – 61784-3-14  IEC:2010
CONTENTS
FOREWORD . 6
0 Introduction . 8
0.1 General . 8
0.2 Patent declaration . 10
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 14: Additional terms and definitions . 16
3.2 Symbols and abbreviated terms. 16
3.2.1 Common symbols and abbreviated terms . 16
3.2.2 CPF 14: Additional symbols and abbreviated terms . 17
3.3 Conventions . 17 ®
4 Overview of FSCP 14/1 (EPASafety ) . 18 ®
4.1 EPASafety . 18
4.2 Principle of EPA safety communications . 18
4.3 Safety function processing . 19
5 General . 19
5.1 External documents providing specifications for the profile . 19
5.2 Safety functional requirements . 20
5.3 Safety measures . 20
5.4 Safety communication layer structure . 21
5.4.1 Combination of standard communication and safety communication
systems . 21
5.4.2 CP 14/1 safety communication structure . 22
5.5 Relationships with FAL (and DLL, PhL) . 23
5.5.1 Overview . 23
5.5.2 Data types . 23
6 Safety communication layer services . 24
6.1 Overview . 24
6.2 FSCP 14/1 object extensions . 24
6.2.1 General . 24
6.2.2 Functional safety communication management object. 25
6.2.3 Functional Safety Link Object . 26
6.2.4 Functional safety communication alert object . 29
6.3 Extended services . 30
6.3.1 General . 30
6.3.2 SafetyCommunicationOpen . 31
6.3.3 SafetyCommunicationClose . 32
7 Safety communication layer protocol . 34
7.1 Safety PDU format . 34
7.1.1 General . 34
7.1.2 APDU header structure . 34
7.1.3 Functional safety PDU . 34
7.2 Safety communication operation . 36

61784-3-14  IEC:2010 – 3 –
7.2.1 Sequence number . 36
7.2.2 RelationKey . 36
7.2.3 Feedback message . 37
7.2.4 CRC-cross-check . 37
7.2.5 Scheduling number . 37
7.2.6 Time stamp . 39
7.2.7 Time expectation . 39
7.2.8 Time synchronization monitoring . 39
7.2.9 Communication scheduling precision monitoring . 39
7.3 Safety communication behaviour . 39
7.3.1 Protocol state description of periodic data transmission . 39
7.3.2 Protocol state description of non-periodic data transmission . 41
7.3.3 Protocol state description of alert report for communication fault . 46
7.3.4 Function description . 49
7.4 Code . 51
7.4.1 Object code . 51
7.4.2 Service code . 53
8 Safety communication layer management . 59
8.1 Time synchronization diagnostics . 59
8.1.1 Time synchronization process. 59
8.1.2 Time synchronization management . 60
8.2 CSME diagnostics . 60
8.2.1 General . 60
8.2.2 CSME diagnostics management . 60
8.3 Communication fault management . 61
8.3.1 Configuration management . 61
8.3.2 Communication fault report process . 61
9 System requirements . 64
9.1 Indicators and switches . 64
9.2 Installation guidelines . 64
9.3 Safety function response time . 64
9.3.1 General . 64
9.3.2 Calculation of the network reaction time
...