IEC 61987-24-2:2017

IEC 61987-24-2 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process measurement and control – Data structures and elements in
process equipment catalogues –
Part 24-2: Lists of properties (LOPs) of valve/actuator accessories for electronic
data exchange
Mesure et commande dans les processus industriels – Structures de données et
éléments dans les catalogues d’équipements de processus –
Partie 24-2: Listes de propriétés (LOP) des accessoires d'actionneur/de vanne
pour l'échange électronique de données

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 l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland 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.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) 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 IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
65 000 entrées terminologiques électrotechniques, en anglais
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 61987-24-2 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process measurement and control – Data structures and elements in

process equipment catalogues –

Part 24-2: Lists of properties (LOPs) of valve/actuator accessories for electronic

data exchange
Mesure et commande dans les processus industriels – Structures de données et

éléments dans les catalogues d’équipements de processus –

Partie 24-2: Listes de propriétés (LOP) des accessoires d'actionneur/de vanne

pour l'échange électronique de données

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.110; 25.040.40; 35.240.50 ISBN 978-2-8322-4405-0

– 2 – IEC 61987-24-2:2017  IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General . 7
4.1 Overview. 7
4.2 Depiction of OLOP and DLOPs . 7
4.3 Example of DLOP block usage for a solenoid valve (informative) . 7
Annex A (normative) Operating list of properties for valve/actuator accessories . 10
Annex B (normative) Device list of properties for valve/actuator accessories . 11
B.1 DLOP for filter regulator . 11
B.2 DLOP for limit switch . 11
B.3 DLOP for position transmitter . 11
B.4 DLOP for solenoid valve . 12
Annex C (normative) List of properties for valve/actuator accessories – Property
library . 13
Annex D (normative) List of properties for valve/actuator accessories – Block library . 14
Bibliography . 15

Table 1 – Example for a solenoid valve . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL – DATA
STRUCTURES AND ELEMENTS IN PROCESS EQUIPMENT CATALOGUES –

Part 24-2: Lists of properties (LOPs) of valve/actuator accessories
for electronic data exchange
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 61987-24-2 has been prepared by subcommittee 65B:
Measurement and control devices, of IEC technical committee 65: Industrial-process
measurement, control and automation.
The text of this International Standard is based on the following documents:
CDV Report on voting
65B/1036/CDV 65B/1065/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 4 – IEC 61987-24-2:2017  IEC 2017
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61987 series, published under the general title Industrial-process
measurement and control – Data structures and elements in process equipment catalogues,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
The exchange of product data between companies, business systems, engineering tools, data
systems within companies and, in the future, control systems (electrical, measuring and
control technology) can run smoothly only when both the information to be exchanged and the
use of this information has been clearly defined.
Prior to IEC 61987, requirements on process control devices and systems were specified by
customers in various ways when suppliers or manufacturers were asked to quote for suitable
equipment. The suppliers in their turn described the devices according to their own
documentation schemes, often using different terms, structures and media (paper, databases,
CDs, e-catalogues, etc.). The situation was similar in the planning and development process,
with device information frequently being duplicated in a number of different information
technology (IT) systems.
Any method that is capable of recording all existing information only once during the planning
and ordering process and making it available for further processing, gives all parties involved
an opportunity to concentrate on the essentials. A precondition for this is the standardization
of both the descriptions of the objects and the exchange of information.
IEC 61987 (all parts) proposes a method for standardization which will help both suppliers
and users of process control equipment to optimize workflows both within their own
companies and in their exchanges with other companies. Depending on their role in the
process, engineering firms can be considered here to be either users or suppliers.
The method specifies process control equipment by means of blocks of properties. These
blocks are compiled into lists of properties (LOPs), each of which describes a specific
equipment (device) type. IEC 61987 (all parts) covers both properties that can be used in an
inquiry or a proposal and detailed properties required for integration of the equipment in
computer systems for other tasks.
Part 10 of IEC 61987 defines structure elements for constructing lists of properties for
electrical and process control equipment in order to facilitate automatic data exchange
between any two computer systems in any possible workflow, for example engineering,
maintenance or purchasing workflow and to allow both the customers and the suppliers of the
equipment to optimize their processes and workflows. Part 10 also provides the data model
for assembling the LOPs.
Part 11 of IEC 61987, while specifying a generic structure for measuring equipment, provides
several important detail descriptions, such as the handling of composite devices that are also
required for LOPs describing devices of other areas like the automated valves.
Part 21 of IEC 61987 specifies the generic structure for operating and device lists of properties
(OLOPs and DLOPs) for automated valves. It lays down the framework for further parts of
IEC 61987 in which complete LOPs for final control elements of different construction and
functional principle will be specified. The generic structure can also serve as a basis for the
specification of LOPs for other industrial-process control instrument types.
This part of IEC 61987 concerns various accessories, which could be attached to automated
valves. It provides operating LOPs which can be used, for example, as a request for
quotation for various purposes. The DLOPs for the accessories provided in this document can
be used in very different ways in the computer systems of equipment manufacturers and
suppliers, in CAE and similar systems of EPC contractors and other engineering companies
and especially in the various plant maintenance systems of plant owners. The OLOP and the
DLOPs provided correspond to the guidelines specified in IEC 61987-10, IEC 61987-11 and
IEC 61987-21.
– 6 – IEC 61987-24-2:2017  IEC 2017
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL – DATA
STRUCTURES AND ELEMENTS IN PROCESS EQUIPMENT CATALOGUES –

Part 24-2: Lists of properties (LOPs) of valve/actuator accessories
for electronic data exchange
1 Scope
This part of IEC 61987 provides
• an operating list of properties (OLOP) for the description of the operating parameters and
the collection of requirements for accessories attached to automated valves, listed in
Annex A,
• device lists of properties (DLOPs) for accessories attached to automated valves, listed in
Annex B.
The structures of the LOPs conform to the general structures defined in IEC 61987-11 and
IEC 61987-21 as well as the fundamentals for the construction of LOPs defined in
IEC 61987-10. The LOPs conform additionally with terms defined in IEC 60534-7.
Libraries of properties and of blocks used in the LOPs are listed in Annexes C and D
respectively.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements 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 61360 (all parts), Standard data element types with associated classification scheme for
electric components
IEC 61360-4, Standard data element types with associated classification scheme for electric
components – Part 4: IEC reference collection of standard data element types and component
classes (available at: http://std.iec.ch/iec61360)
IEC 61987-10:2009, Industrial-process measurement and control – Data structures and
elements in process equipment catalogues – Part 10: Lists of Properties (LOPs) for Industrial-
Process Measurement and Control for Electronic Data Exchange – Fundamentals
IEC 61987-11, Industrial-process measurement and control – Data structures and elements in
process equipment catalogues – Part 11: List of Properties (LOP) of measuring equipment for
electronic data exchange – Generic structures
IEC 61987-21:2015, Industrial-process measurement and control – Data structures and
elements in process equipment catalogues – Part 21: List of Properties (LOP) of automated
valves for electronic data exchange – Generic structures

3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61987-10,
IEC 61987-11 and IEC 61987-21 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General
4.1 Overview
The LOPs provided by this document are intended for use in electronic data exchange
processes performed between any two computer systems. The computer systems can belong
to the same company or they can belong to different companies as described in Annex C of
IEC 61987-10:2009.
4.2 Depiction of OLOP and DLOPs
The properties of the OLOP and DLOPs used in this document have been created in
conformance with the requirements of IEC 61360 (all parts). As such, the structural elements,
properties and attributes to be found in the IEC Common Data Dictionary (CDD) (see
IEC 61360-4) are normative.
4.3 Example of DLOP block usage for a solenoid valve (informative)
For a typical selection of a solenoid valve for emergency exhaust of a pneumatic actuator, to
be used in a non-hazardous area, refer to Table 1 (unused properties and blocks are omitted).

– 8 – IEC 61987-24-2:2017  IEC 2017
Table 1 – Example for a solenoid valve
a
Name of LOP type, block or property Assigned value Unit
Identification
manufacturer Name of company
type of product 3/2-way solenoid valve
article number O52 344
Parameters of solenoid valve
rated flow coefficient Kvs 0,14 M /h
0,18
gal (US
rated flow coefficient Cv liq.)/min
acting time on excitation 15 ms
acting time on release 15 ms
Rated operating conditions
Environmental design ratings
Normal environmental conditions
minimum ambient temperature 0 °C
maximum ambient temperature 55 °C
Pressure-temperature design ratings
minimum allowable gauge pressure 0 bar
maximum allowable gauge pressure 10 bar
minimum allowable temperature 0 °C
maximum allowable temperature 90 °C

Mechanical and electrical construction [solenoid valve]
Overall dimensions and weight
weight 0,47 kg
length 46 mm
width 34 mm
height 100 mm
Structural design [solenoid valve]
Body of solenoid valve
Material of body
designation of material Stainless steel
material code 1.4401
Closure member
type of closure member Diaphragm
Material of closure member
designation of material FKM
Structural design of a solenoid valve
type of solenoid valve 3/2 way
fail-safe position nc
number of end connections
Solenoid valve housing
degree of protection IP 67
number of connection facilities 1
Connection facility
number of connection compartments 1
Connection compartment
style of connection compartment plug

a
Name of LOP type, block or property Assigned value Unit
number of pneumatic/hydraulic connections 3
Pneumatic/hydraulic connection_1
input
designation of pneumatic/hydraulic
connection
type of pneumatic/hydraulic G 1/4
connection
Pneumatic/hydraulic connection_2
designation of pneumatic/hydraulic output
connection
type of pneumatic/hydraulic G 1/4
connection
Pneumatic/hydraulic connection_3
exhaust
designation of pneumatic/hydraulic
connection
G 1/4
type of pneumatic/hydraulic
connection
Power supply
number of electrical power input circuits 1
Electrical power input circuit_1
rated voltage 24 V
minimum rated voltage 21,6 V
maximum rated voltage 26,4 V
type of voltage DC
short-circuit resistance 100 %
a
In the IEC CDD, block names start with a capital letter, property names with a lower case letter.

– 10 – IEC 61987-24-2:2017  IEC 2017
Annex A
(normative)
Operating list of properties for valve/actuator accessories
This OLOP is assigned to the valve/actuator accessories in the classification scheme for final
control elements (see Table A.1 in IEC 61987-21:2015).
– valve/actuator accessory node ID: IEC-ABD366
NOTE The OLOP is also found in the Properties Tree field and has the ID IEC-ABE308.
The OLOP is available with all blocks and properties in the IEC Common Data Dictionary
(CDD) at the following address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1

Annex B
(normative)
Device list of properties for valve/actuator accessories
B.1 DLOP for filter regulator
The DLOPs of Annex B correspond to the classification scheme for final control elements
placed in Annex A of IEC 61987-21:2015.
The DLOP for a filter regulator is assigned to the node of the classification:
– filter regulator node ID: IEC- ABD377
NOTE The DLOP is also found in the Properties Tree field and has the ID IEC-ABE632.
The DLOP is available with all blocks and properties in the IEC Common Data Dictionary
(CDD) at the following address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1
B.2 DLOP for limit switch
The DLOPs of Annex B correspond to the classification scheme for final control elements
placed in Annex A of IEC 61987-21:2015.
The DLOP for a limit switch is assigned to the node of the classification:
– limit switch node ID: IEC-ABD368
NOTE The DLOP is also found in the Properties Tree field and has the ID IEC-ABE630.
The DLOP is available with all blocks and properties in the IEC Common Data Dictionary
(CDD) at the following address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1
B.3 DLOP for position transmitter
The DLOPs of Annex B correspond to the classification scheme for final control elements
placed in Annex A of IEC 61987-21:2015.
The DLOP for a position transmitter is assigned to the node of the classification:
– position transmitter node ID: IEC-ABD369
NOTE The DLOP is also found in the Properties Tree field and has the ID IEC-ABV520.
The DLOP is available with all blocks and properties in the IEC Common Data Dictionary
(CDD) at the following address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1

– 12 – IEC 61987-24-2:2017  IEC 2017
B.4 DLOP for solenoid valve
The DLOPs of Annex B correspond to the classification scheme for final control elements
placed in Annex A of IEC 61987-21:2015.
The DLOP for a solenoid valve is assigned to the node of the classification:
– solenoid valve node ID: IEC-ABD371
NOTE The DLOP is also found in the Properties Tree field and has the ID IEC-ABE631.
The DLOP is available with all blocks and properties in the IEC Common Data Dictionary
(CDD) at the following address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1

Annex C
(normative)
List of properties for valve/actuator accessories – Property library
The properties used in the OLOP in Annex A and DLOPs in Annex B are available with all
attributes specified in IEC 61360-4 in the IEC Common Data Dictionary (CDD) at the following
address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1

– 14 – IEC 61987-24-2:2017  IEC 2017
Annex D
(normative)
List of properties for valve/actuator accessories – Block library
The blocks used in the OLOP in Annex A and DLOPs in Annex B are available with all
attributes specified in IEC 61360-4 in the IEC Common Data Dictionary (CDD) at the following
address:
http://cdd.iec.ch/cdd/iec61987/iec61987.nsf/TreeFrameset?OpenFrameSet&ongletactif=1

Bibliography
IEC 60534-1, Industrial-process control valves – Part 1: Control valve terminology and
general considerations
IEC 60534-7, Industrial-process control valves – Part 7: Control valve data sheet
IEC 61069-5, Industrial-process measurement, control and automation – Evaluation of system
properties for the purpose of system assessment – Part 5: Assessment of system
dependability
IEC 61987-1, Industrial-process measurement and control – Data structures and elements in
process equipment catalogues – Part 1: Measuring equipment with analog and digi
...