IEC 61227:2008

Nuclear power plants - Control rooms - Operator controls

IEC 61227:2008 identifies the Human-Machine Interface (HMI) requirements for discrete controls, multiplexed conventional systems, and soft control systems. To be used with IEC 60964 and IEC 61772. Is intended for application to the design of new main control rooms in nuclear power plants designed to IEC 60964. This new edition takes into account the fact that computer design engineering techniques have advanced significantly during recent years.

Centrales nucléaires de puissance - Salles de commande - Commandes opérateurs

La CEI 61227:2008 établit les exigences de l'interface homme-machine (IHM) pour les commandes individuelles, les systèmes conventionnels multiplexés, et les systèmes de commande numérique. Est utilisée conjointement avec la CEI 60964 et la CEI 61772. Est destinée à être appliquée à la conception des nouvelles salles de commande principales des centrales nucléaires conçues selon la CEI 60964. Cette nouvelle édition prend en compte le fait que les techniques de conception du matériel des systèmes informatisés ont progressé de façon significative ces dernières années.

General Information

• Status: Published
• Publication Date: 28-Apr-2008
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.120.20 - Nuclear power plants. Safety
• Technical Committee: SC 45A - Instrumentation, control and electrical power systems of nuclear facilities
• Current Stage: PPUB - Publication issued
• Start Date: 31-May-2008
• Completion Date: 29-Apr-2008

Standards Content (Sample)

IEC 61227
Edition 2.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear power plants – Control rooms – Operator controls

Centrales nucléaires de puissance – Salles de commande – Commandes
opérateurs
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IEC 61227
Edition 2.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear power plants – Control rooms – Operator controls

Centrales nucléaires de puissance – Salles de commande – Commandes
opérateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 27.120.20 ISBN 2-8318-9732-7

– 2 – 61227 © IEC:2008
CONTENTS
FOREWORD.0H3
INTRODUCTION.1H5

1 Scope.2H7
2 Normative references .3H7
3 Terms and definitions .4H7
4 Design principles.5H8
4.1 Basic concepts .6H8
4.2 Types of HMI.7H9
4.2.1 Discrete controls .8H9
4.2.2 Soft controls .9H9
4.3 Selection of control system.10H10
5 Design requirements .11H11
5.1 Individual controls and indicators .12H11
5.1.1 Control board layout .13H11
5.1.2 Positioning of groups .14H12
5.1.3 Device layout.15H12
5.1.4 Uniformity of orientation .16H13
5.1.5 Mimic diagrams .17H13
5.1.6 Coding.18H14
5.1.7 Protection against mal-operation of control devices .19H15
5.1.8 Compatibility with VDU formats.20H15
5.2 Soft controls.21H16
5.2.1 Display devices .22H16
5.2.2 Selection displays.23H17
5.2.3 Input Fields .24H17
5.2.4 Input formats .25H17
5.2.5 User-System Interaction .26H17
5.3 Special requirements for touch panels.27H18

28H20
Annex A (informative) Examples for the arrangement of discrete controls .

61227 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR POWER PLANTS –
CONTROL ROOMS –
OPERATOR CONTROLS
FOREWORD
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International Standard IEC 61227 has been prepared by subcommittee 45A: Instrumentation
and control of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation.
This second edition cancels and replaces the first edition published in 1993 and constitutes a
technical revision. This edition includes the following significant technical changes with
respect to the previous edition:
a) account has been taken of the fact that computer design engineering techniques have
advanced significantly in the intervening years;
b) alignment of the standard with the new revisions of IAEA documents NS-R-1 and NS-G-
1.3, which includes as far as possible an adaptation of the definitions;
c) replacement, as far as possible, of the requirements associated with standards published
since the first edition, especially, IEC 60964 (edition 2) and IEC 61772 (edition 2);
d) review of the existing requirements and updating of the terminology and definitions.

– 4 – 61227 © IEC:2008
The text of this standard is based on the following documents:
FDIS Report on voting
45A/694/FDIS 45A/702/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
61227 © IEC:2008 – 5 –
INTRODUCTION
a) Technical background, main issues and organisation of this standard
This IEC standard specifically focuses on operator controls.
It is intended that this standard be used by operators of NPPs (utilities), systems evaluators
and by licensors.
b) Situation of the current standard in the structure of IEC SC 45A standard series
IEC 61227 is the third level IEC SC 45A document tackling the generic issue of operator
controls.
IEC 61227 is to be read in association with IEC 60964 and IEC 61772. IEC 60964 is the
appropriate IEC SC 45A chapeau document for control rooms which provides guidance on
control room design and which references IEC 61227. IEC 61772 establishes requirements for
the application of VDU (Visual Display Units).
For more details on the structure of IEC SC 45A standard series, see item d) of this
introduction.
c) Recommendations and limitations regarding the application of this standard
It is important to note that this standard establishes no additional functional requirements f
...