IEC 60546-2:2010

Controllers with analogue signals for use in industrial-process control systems - Part 2: Guidance for inspection and routine testing

IEC 60546-2:2010 applies to pneumatic and electrical industrial-process controllers using analogue signals which are in accordance with IEC 60381-1 and IEC 60381-2. The provisions of this standard are applicable in principle to controllers having different, but continuous signals. It provides technical guidance for inspection and routine testing of controllers, for instance, as acceptance tests or after repair. For a full evaluation, IEC 60546-1 should be used. Quantitative criteria for acceptable performance are established by agreement between manufacturer and user. The requirements of this standard are effective when agreed upon by the manufacturer and the user. This second edition cancels and replaces the first edition, published in 1987. It constitutes a minor technical revision made to bring some terms, measurement units and references up to date.

Régulateurs à signaux analogiques utilisés pour les systèmes de conduite des processus industriels - Partie 2: Recommandations pour les essais d'inspection et les essais individuels de série

La CEI 60546-2:2010 s'applique aux régulateurs pneumatiques et électriques pour les processus industriels, utilisant des signaux analogiques conformes à la CEI 60381-1 et à la CEI 60381-2. Les dispositions prévues dans la présente norme sont en principe applicables à des régulateurs utilisant des signaux différents, mais continus. Elle a pour but de fournir un guide technique pour les essais d'inspection et les essais individuels de série des régulateurs utilisés, par exemple, comme essais de réception ou après réparation. Pour une évaluation complète, il convient de se référer à la CEI 60546-1. Les critères quantitatifs d'acceptation sont établis par accord entre le constructeur et l'utilisateur. Les exigences de la présente norme ne sont effectives qu'avec l'accord du constructeur et de l'utilisateur. Cette deuxième édition annule et remplace la première édition, parue en 1987 et constitue une révision technique mineure, élaborée pour mettre à jour certains termes, certaines unités de mesure et certaines références.

General Information

• Status: Published
• Publication Date: 11-Jul-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: SC 65B - Measurement and control devices
• Drafting Committee: WG 6 - TC 65/SC 65B/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 15-Sep-2010
• Completion Date: 12-Jul-2010

Standards Content (Sample)

IEC 60546-2 ®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Controllers with analogue signals for use in industrial-process control systems –
Part 2: Guidance for inspection and routine testing

Régulateurs à signaux analogiques utilisés pour les systèmes de conduite des
processus industriels –
Partie 2: Recommandations pour les essais d’inspection
et les essais individuels de série

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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch
About the IEC
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.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: [e-mail]
Tél.: [phone]
Fax: [phone]
IEC 60546-2 ®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Controllers with analogue signals for use in industrial-process control systems –
Part 2: Guidance for inspection and routine testing

Régulateurs à signaux analogiques utilisés pour les systèmes de conduite des
processus industriels –
Partie 2: Recommandations pour les essais d’inspection
et les essais individuels de série

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
M
CODE PRIX
ICS 25.040.40 ISBN 978-2-88912-040-6
– 2 – 60546-2 © IEC:2010
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Terms, definitions and symbols .5
3.1 Symbols used in this standard.5
4 Sampling for test .6
5 Performance tests .6
5.1 General .6
5.2 Tests of controller action (only functions provided by test specimen need
consideration) .6
5.2.1 Offset (full test: see Clause 6 of IEC 60546-1).6
5.2.2 Proportional action (full test: see 7.2 of IEC 60546-1).6
5.2.3 Integral action (full test: see 7.3 of IEC 60546-1) .8
5.2.4 Derivative action (for a more accurate test: see 7.4 of IEC 60546-1) .9
5.3 Power supply variations (full test: see 8.5.1 of IEC 60546-1) .10
5.4 Transfer between manual and automatic .11
5.5 Set point generator.11
5.6 Manual loading transmitter .11

Bibliography.12

Figure 1 – Basic signals to/from an idealized controller.6
Figure 2 – Arrangement for open loop or closed loop tests.7
Figure 3 – Recorded characteristics of proportional action .8
Figure 4 – Recorded characteristics of integral action.9
Figure 5 – Recorded characteristics of derivative action .10

60546-2 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONTROLLERS WITH ANALOGUE SIGNALS FOR USE
IN INDUSTRIAL-PROCESS CONTROL SYSTEMS –

Part 2: Guidance for inspection and routine testing

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60546-2 has been prepared by subcommittee 65B: Devices and
process analysis, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This second edition cancels and replaces the first edition, published in 1987. This second
edition constitutes a minor technical revision made to bring some terms, measurement units and
references up to date.
The text of this standard is based on the following documents:
CDV Report on voting
65B /660/CDV 65B /718A/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

– 4 – 60546-2 © IEC:2010
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60546 series, under the general title: Controllers with analogue
signals for use in industrial-process control systems, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60546-2 © IEC:2010 – 5 –
CONTROLLERS WITH ANALOGUE SIGNALS FOR USE
IN INDUSTRIAL-PROCESS CONTROL SYSTEMS –

Part 2: Guidance for inspection and routine testing

1 Scope
This International Standard applies to pneumatic and electrical industrial-process controllers
using analogue signals which are in accordance with IEC 60381-1 and IEC 60381-2. The
provisions of this standard are applicable in principle to controllers having different, but
continuous signals.
This standard is intended to provide technical guidance for inspection and routine testing of
controllers, for instance, as acceptance tests or after repair. For a full evaluation,
IEC 60546-1 should be used. Quantitative criteria for acceptable performance are established
by agreement between manufacturer and user. The requirements of this standard are
effective when agreed upon by the manufacturer and the user.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60546-1:___, Controllers with analogue signals for use in industrial-process control
systems – Part 1: Methods of evaluating the performance
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in IEC 60546-1 apply.
3.1 Symbol
...