EN 61784-3-12:2010/A1:2019

Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12

Industrielle Kommunikationsnetze - Profile - Teil 3-12: Funktional sichere Übertragung bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 12

Réseaux de communication industriels - Partie 3-12: Bus de terrain à sécurité fonctionnelle - Spécifications complémentaires pour le CPF 12

Industrijska komunikacijska omrežja - Profili - 3-12. del: Funkcijska varnost procesnih vodil - Dodatne specifikacije za CPF 12 (IEC 61784-3-12:2010/A1:2019)

General Information

• Status: Published
• Publication Date: 19-Dec-2019
• Withdrawal Date: 10-Dec-2022
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65C - IEC_SC_65C
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 20-Dec-2019
• Completion Date: 20-Dec-2019
• Ref Project: SIST EN 61784-3-12:2010/A1:2020 - Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12 (IEC 61784-3-12:2010/A1:2019)

Relations

• Amends: EN 61784-3-12:2010 - Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses - Additional specifications for CPF 12
• Effective Date: 16-Apr-2019

Overview

EN 61784-3-12:2010/A1:2019 is an amendment to the European adoption of IEC 61784-3-12 focused on additional specifications for CPF 12 - the Communications Profile Family used for functional safety fieldbuses. Published by CENELEC and prepared by IEC/TC 65 SC 65C, this amendment corrects technical errors in the FSoE (Functional Safety over EtherCAT / FSoE slave) state tables and clarifies action parameters to improve predictable behaviour of safety devices in process and industrial networks.

This document is relevant to engineers, integrators, and QA teams working on safety-related communication in industrial process measurement, control and automation.

Key Topics

• Amendment scope: Updates to EN 61784-3-12:2010 approved as A1 in 2019; adopted with no modification as a European Standard.

• FSoE Slave state table corrections: The amendment corrects specific entries in the state tables used by FSoE slave implementations. Notable fixes include:

  • Correcting the value of the bNew (SendFrame) parameter for back-to-reset transitions so it is set to TRUE only when defaults are applied.
  • Adding a missing action (InitSeqNo := 1;) in the SESSION_FAIL5 transition of the Session state.
  • Fixing an address parameter name in the CONN_STAY1 transition from Connection[4-BytesToBeSent] to ConnectionData[4-BytesToBeSent].

• Standards stewardship: The amendment process and endorsement by CENELEC are documented, including implementation and withdrawal dates for national standards.

Applications

This amendment has direct practical value in the following areas:

• Safety device firmware: Vendors implementing FSoE slave stacks should apply the corrected state-table behaviors to ensure deterministic and safe transitions during resets, sessions and connections.
• System integration and validation: Control system integrators can use the corrected behaviours to reduce unexpected state-transition faults and simplify safety validation and testing.
• Process control networks: Facilities relying on CPF 12 fieldbuses for functional safety in process industries benefit from improved reliability and consistent handling of safety frames.

Benefits include clearer interoperability rules, reduced ambiguity in safety-state handling, and improved overall system safety and reliability.

Related Standards

• IEC 61784-3-12 (base international standard)
• EN 61784-3-12:2010 (original European adoption)
• CENELEC/CEN implementation documents and national adoptions

For implementers, review the amendment text to identify exact corrected table rows and parameter assignments. Applying these changes helps align FSoE slave implementations with the approved IEC/CENELEC specification and supports robust, standards-compliant functional safety communication.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2020
Industrijska komunikacijska omrežja - Profili - 3-12. del: Funkcijska varnost
procesnih vodil - Dodatne specifikacije za CPF 12 (IEC 61784-3-12:2010/A1:2019)
Industrial communication networks - Profiles - Part 3-12: Functional safety fieldbuses -
Additional specifications for CPF 12 (IEC 61784-3-12:2010/A1:2019)
Industrielle Kommunikationsnetze - Profile - Teil 3-12: Funktional sichere Übertragung
bei Feldbussen - Zusätzliche Festlegungen für die Kommunikationsprofilfamilie 12 (IEC
61784-3-12:2010/A1:2019)
Réseaux de communication industriels - Partie 3-12: Bus de terrain à sécurité
fonctionnelle - Spécifications complémentaires pour le CPF 12 (IEC 61784-3-
12:2010/A1:2019)
Ta slovenski standard je istoveten z: EN 61784-3-12:2010/A1:2019
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 Večslojne uporabniške Multilayer applications
rešitve
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61784-3-12:2010/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2019
ICS 25.040.40; 35.100.05
English Version
Industrial communication networks - Profiles - Part 3-12:
Functional safety fieldbuses - Additional specifications for CPF
(IEC 61784-3-12:2010/A1:2019)
Réseaux de communication industriels - Partie 3-12: Bus de Industrielle Kommunikationsnetze - Profile - Teil 3-12:
terrain à sécurité fonctionnelle - Spécifications Funktional sichere Übertragung bei Feldbussen -
complémentaires pour le CPF 12 Zusätzliche Festlegungen für die
(IEC 61784-3-12:2010/A1:2019) Kommunikationsprofilfamilie 12
(IEC 61784-3-12:2010/A1:2019)
This amendment A1 modifies the European Standard EN 61784-3-12:2010; it was approved by CENELEC on 2019-12-11. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61784-3-12:2010/A1:2019 E

European foreword
The text of document 65C/960/CDV, future IEC 61784-3-12/A1, prepared by SC 65C "Industrial
networks" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 61784-3-12:2010/A1:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-09-11
level by publication of an identical national standard or by end
...