Earth-moving machinery - Functional safety - Part 2: Design and evaluation of hardware and architecture requirements for safety-related parts of the control system (ISO 19014-2:2022)

This document specifies general principles for the development and evaluation of the machine performance level achieved (MPLa) of safety-control systems (SCS) using components powered by all energy sources (e.g. electronic, electrical, hydraulic, mechanical) used in earth-moving machinery and its equipment, as defined in ISO 6165.
The principles of this document apply to machine control systems (MCS) that control machine motion or mitigate a hazard; such systems are assessed for machine performance level required (MPLr) per ISO 19014-1 or ISO/TS 19014-5.
Excluded from the scope of this document are the following systems:
—    awareness systems that do not impact machine motion (e.g. cameras and radar detectors);
—    fire suppression systems, unless the activation of the system interferes with, or activates, another SCS.
Other systems or components whereby the operator would be aware of failure (e.g. windscreen wipers, head lights, etc.), or are primarily used to protect property, are excluded from this document. Audible warnings are excluded from the requirements of diagnostic coverage.
In addition, this document addresses the significant hazards as defined in ISO 12100 mitigated by the hardware components within the SCS.
This document is not applicable to EMM manufactured before the date of its publication.

Erdbaumaschinen - Funktionale Sicherheit - Teil 2: Entwurf und Bewertung von Hardware- und Architekturanforderungen für sicherheitsrelevante Teile des Steuerungssystems (ISO 19014-2:2022)

Dieses Dokument legt allgemeine Grundsätze für die Entwicklung und Beurteilung des erreichten Performance Level der Maschine (MPLa) bei Sicherheitssteuerungen (SCS), unter Verwendung von Komponenten, die durch sämtliche, bei Erdbaumaschinen und deren Ausrüstung, wie in ISO 6165 festgelegt, Energiequellen (z. B. elektronisch, elektrisch, hydraulisch, mechanisch) angetrieben werden, fest.
Die Grundsätze dieses Dokuments sind anwendbar für Steuerungssysteme zur Steuerung von Maschinenbewegungen oder Verminderung von Gefährdungen. Solche Systeme werden nach ISO 19014 1 oder ISO/TS 19014 5 hinsichtlich der Anforderungen an das Performance Level (MPLr) untersucht.
Folgende Systeme sind vom Anwendungsbereich dieses Dokuments ausgeschlossen:
—   Wahrnehmungssysteme, die die Maschinenbewegung nicht beeinflussen (z. B. Kameras und Radardetektoren);
—   Löschanlagen, sofern die Aktivierung des Systems kein anderes SCS beeinflusst oder aktiviert.
Weitere Systeme oder Komponenten, die den Bediener auf Ausfälle aufmerksam machen (z. B. Scheibenwischer oder Scheinwerfer usw.) oder die primär dem Schutz von Eigentum dienen, sind von diesem Dokument ausgeschlossen. Akustische Signale sind von den Anforderungen des Diagnosedeckungsgrads ausgeschlossen.
Zudem behandelt dieses Dokument die in ISO 12100 festgelegten signifikanten Gefährdungen, die durch die Hardwarekomponenten der SCS gemindert werden.
Dieses Dokument gilt nicht für EMM, die vor dem Veröffentlichungsdatum dieses Dokuments hergestellt wurden.

Engins de terrassement - Sécurité fonctionnelle - Partie 2: Conception et évaluation des exigences de matériel et d’architecture pour les parties relatives à la sécurité du système de commande (ISO 19014-2:2022)

Le présent document spécifie les principes généraux d’élaboration et d’évaluation du niveau de performance de machine obtenu (MPLa) des systèmes de commande de sécurité (SCS) utilisant des composants alimentés par toutes les sources d’énergie (par exemple, électronique, électrique, hydraulique, mécanique) utilisées dans les engins de terrassement et leur équipement, comme défini dans l’ISO 6165.
Les principes du présent document s’appliquent aux systèmes de commande d’engins (MCS) qui commandent le mouvement d’un engin ou atténuent un phénomène dangereux; ces systèmes sont évalués pour vérifier que les exigences de niveau de performance des engins (MPLr) sont conformes à l’ISO 19014‑1 ou à l’ISO/TS 19014‑5.
Les systèmes suivants sont exclus du domaine d’application du présent document:
—    systèmes de connaissance n’ayant aucun impact sur le mouvement de l'engin (par exemple, caméras et détecteurs radar);
—    systèmes de lutte contre l’incendie, excepté si l’activation du système interfère ou active un autre SCS.
Les autres systèmes ou composants pour lesquels les défaillances pourraient être constatées par l’opérateur (par exemple, les essuie-glaces, les phares, l’éclairage de la cabine, etc.) ou ceux qui servent essentiellement à protéger la propriété sont exclus du présent document. Les avertisseurs sonores sont exclus des exigences de la couverture de diagnostic.
De plus, le présent document traite des phénomènes dangereux significatifs tels que définis dans l’ISO 12100 atténués par les composants matériels dans le SCS.
Le présent document n’est pas applicable aux engins de terrassement fabriqués avant la date de sa publication.

Stroji za zemeljska dela - Funkcijska varnost - 2. del: Oblikovanje in vrednotenje strojnih in arhitekturnih zahtev za varnostne dele krmilnega sistema (ISO 19014-2:2022)

Ta del standarda EN ISO 19014 določa splošna načela za razvoj in preskušanje varnostnih delov krmilnih sistemov strojev (MCS) pri strojih za zemeljska dela in njihovi opremi, kot so opredeljeni v standardu EN ISO 6165.

General Information

Status
Published
Publication Date
28-Jun-2022
Withdrawal Date
30-Dec-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
29-Jun-2022
Completion Date
29-Jun-2022

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SLOVENSKI STANDARD
01-september-2022
Stroji za zemeljska dela - Funkcijska varnost - 2. del: Oblikovanje in vrednotenje
strojnih in arhitekturnih zahtev za varnostne dele krmilnega sistema (ISO 19014-
2:2022)
Earth-moving machinery - Functional safety - Part 2: Design and evaluation of hardware
and architecture requirements for safety-related parts of the control system (ISO 19014-
2:2022)
Erdbaumaschinen - Funktionale Sicherheit - Teil 2: Entwurf und Bewertung von
Hardware- und Architekturanforderungen für sicherheitsrelevante Teile des
Steuerungssystems (ISO 19014-2:2022)
Engins de terrassement - Sécurité fonctionnelle - Partie 2: Conception et évaluation des
exigences de matériel et d’architecture pour les parties relatives à la sécurité du système
de commande (ISO 19014-2:2022)
Ta slovenski standard je istoveten z: EN ISO 19014-2:2022
ICS:
53.100 Stroji za zemeljska dela Earth-moving machinery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 19014-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 53.100
English Version
Earth-moving machinery - Functional safety - Part 2:
Design and evaluation of hardware and architecture
requirements for safety-related parts of the control system
(ISO 19014-2:2022)
Engins de terrassement - Sécurité fonctionnelle - Partie Erdbaumaschinen - Funktionale Sicherheit - Teil 2:
2: Conception et évaluation des exigences de matériel Entwurf und Bewertung von Hardware- und
et d'architecture pour les parties relatives à la sécurité Architekturanforderungen für sicherheitsrelevante
du système de commande (ISO 19014-2:2022) Teile des Steuerungssystems (ISO 19014-2:2022)
This European Standard was approved by CEN on 25 May 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard 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 CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19014-2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 19014-2:2022) has been prepared by Technical Committee ISO/TC 127 "Earth-
moving machinery" in collaboration with Technical Committee CEN/TC 151 “Construction equipment
and building material machines - Safety” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2022, and conflicting national standards
shall be withdrawn at the latest by December 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 19014-2:2022 has been approved by CEN as EN ISO 19014-2:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 19014-2
First edition
2022-06
Earth-moving machinery —
Functional safety —
Part 2:
Design and evaluation of hardware
and architecture requirements for
safety-related parts of the control
system
Engins de terrassement — Sécurité fonctionnelle —
Partie 2: Conception et évaluation des exigences de matériel et
d’architecture pour les parties relatives à la sécurité du système de
commande
Reference number
ISO 19014-2:2022(E)
ISO 19014-2:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 19014-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms.2
5 General requirements . 3
5.1 Application . 3
5.2 Existing SCS . 4
6 System design . 4
6.1 Overview . 4
6.2 General requirements . 4
6.3 Hardware design . 5
7 System safety performance evaluation . 6
7.1 Machine performance level achieved (MPL ) . 6
a
7.2 Hardware safety evaluation . 6
7.2.1 General . 6
7.2.2 Fault consideration . 6
7.2.3 Fault exclusion . 7
7.2.4 Mean time to dangerous failure (MTTF ) . 7
d
7.3 Diagnostic coverage (DC) . 7
7.3.1 DC of ESCS . . 7
7.3.2 DC of N/ESCS . 7
7.4 System-level fault reduction measures of hydraulic systems based on hydraulic
system robustness (HSR) . 8
7.4.1 General . 8
7.4.2 HSR score calculation . 8
7.5 Category classifications . 9
7.5.1 General . 9
7.5.2 Category B/Category 1 .12
7.5.3 Category 2 . 14
7.5.4 Conflicting safety functions . 15
7.5.5 Considerations for the SRP/CS of fail-operational systems . 16
7.6 Combination of SCS to achieve an overall MPL . 16
8 Information for use and maintenance .18
8.1 General . 18
8.2 Operator’s manual . 18
Annex A (informative) Example systems and evaluations .19
Annex B (informative) Examples of evaluations using HSR scoring .33
Annex C (normative) Compatibility with other functional safety standards .37
Annex D (informative) Safety function evaluation .38
Annex E (normative) Exceptions, exclusions, additions to ISO 13849-1 and ISO 13849-2 .40
Bibliography .
...

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