SIST EN IEC 61987-1:2025
(Main)Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Generic structures for measuring equipment (IEC 61987-1:2024)
Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Generic structures for measuring equipment (IEC 61987-1:2024)
IEC 61987-1:2024 is available as IEC 61987-1:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61987-1:2024 defines a generic structure in which product features of industrial process measurement devices shall be arranged, in order to facilitate the understanding of product descriptions when they are transferred from one party to another. It applies to the production of catalogues supplied by the manufacturer of such devices and helps the user to formulate their requirements. This document will also serve as a reference document for all future standards which are concerned with process measuring equipment.
In addition, this document also provides a basic structure for the production of further standards listing the properties of process control equipment, for example, for actuators and infrastructure devices.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of a subclause “Digital communication” in Clause 5, in order to allow a more comprehensive description of the properties of such an interface;
b) Alignment of clause headings, as described in the introduction, to correspond with those of the IEC CDD.
Industrielle Leittechnik - Datenstrukturen und -elemente in Katalogen der Prozessleittechnik - Teil 1: Generische Strukturen für Messeinrichtungen (IEC 61987-1:2024)
Mesure et commande dans les processus industriels - Eléments et structures de données dans les catalogues d'équipements de processus - Partie 1: Structures génériques pour équipements de mesure(IEC 61987-1:2024)
IEC 61987-1:2024 est disponible sous forme de IEC 61987-1:2024 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 61987-1:2024 définit une structure générique dans laquelle les caractéristiques de produit des appareils de mesure dans les processus industriels doivent être agencées, afin de faciliter la compréhension des descriptions de produit lors de leur transfert d’une partie à l’autre. Elle s’applique à la production des catalogues fournis par le fabricant de tels dispositifs et aide l’utilisateur à formuler ses exigences. Le présent document sert également de document de référence à toutes les futures normes qui sont concernées par les équipements de mesure de processus.
En outre, le présent document fournit également une structure de base pour la production d’autres normes, qui énumère les propriétés des équipements de commande de processus, par exemple, pour les actionneurs et les dispositifs d’infrastructure.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) Ajout d’un paragraphe "Communication numérique" à l’Article 5, afin de permettre une description plus détaillée des propriétés d’une telle interface;
b) Alignement des en-têtes d’articles sur ceux du dictionnaire de données communes (CDD – Common Data Dictionary) de l’IEC, comme cela est décrit dans l’introduction.
Merjenje in nadzor v industrijskih procesih – Strukture podatkov in elementov v katalogih procesne opreme – 1. del: Generična struktura za merilno opremo (IEC 61987-1:2024)
Ta del standarda IEC 61987 opredeljuje generično strukturo, v kateri morajo biti razporejene značilnosti izdelkov merilnih naprav za industrijske procese, da se omogoči lažje razumevanje opisov izdelkov pri prenosu od ene stranke k drugi. Uporablja se za izdelavo katalogov, ki jih zagotovi proizvajalec takih naprav, in je uporabniku v pomoč pri oblikovanju njegovih zahtev.
Ta dokument bo uporaben tudi kot referenčni dokument za vse prihodnje standarde v zvezi z opremo za merjenje procesov.
Poleg tega ta dokument zagotavlja osnovno strukturo za pripravo nadaljnjih standardov, ki navajajo lastnosti opreme za nadzorovanje procesov, na primer za pogone in infrastrukturne naprave.
General Information
Relations
Overview
EN IEC 61987-1:2024 (IEC 61987-1:2024 RLV) defines a generic data structure for describing product features of industrial process measuring equipment in manufacturer catalogues. Its purpose is to make product descriptions consistent and easy to transfer between suppliers, users and systems, and to provide a reference structure for future standards covering process control equipment (for example actuators and infrastructure devices). The 2024 edition includes a redline version showing technical changes from the previous edition.
Key topics and technical requirements
- Generic metadocument structure for process measuring equipment, covering identification, application, function/system design, input, output, performance characteristics, operating conditions, mechanical/electrical construction, operability, power supply, approvals, ordering information and documentation.
- Digital communication: a new subclause (Clause 5.6) expands how communication interfaces, protocols, communication variables and physical layers are described to support modern digital I/O and fieldbus technologies.
- Alignment with IEC CDD: clause headings and nomenclature adjusted to match the IEC Common Data Dictionary (CDD) for better interoperability and machine-readable exchange.
- Performance and environmental attributes: structured fields for accuracy, drift, hysteresis, settling time, influence of ambient/process temperature, installation and process conditions.
- Mechanical/electrical details: standardized entries for dimensions, weight, materials, degree/type of protection, process connections and electrical connections.
- Classification guidance: normative annexes classify which features apply to different measuring equipment types and measurement principles (flow, level, etc.).
Practical applications
- Standardizes how manufacturers publish catalogue data so product comparisons, specification writing and data exchange are consistent.
- Enables more reliable procurement and tender specifications by giving users a clear template to formulate requirements.
- Supports digital product data exchange between suppliers, control-system integrators and asset-management systems.
- Serves as the foundational structure for later standards that list properties of process control and instrumentation equipment.
Who should use this standard
- Manufacturers producing product catalogues and electronic product data (EPD)
- System integrators and control engineers specifying devices and building control/SCADA systems
- Procurement and project engineers preparing tender documents and requirement lists
- Standards developers creating subsequent product-specific LOP (List of Properties) standards
Related standards
Referenced/informative standards include IEC 61987-11 (List of properties for electronic data exchange), IEC 60529 (IP code), IEC 61326 (EMC for measurement equipment), IEC 60751 and other IEC/ISO references that support measurement, documentation and interoperability.
Keywords: EN IEC 61987-1:2024, process equipment catalogues, measuring equipment, data structures, process measurement and control, digital communication, IEC CDD.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Merjenje in nadzor v industrijskih procesih – Strukture podatkov in elementov v
katalogih procesne opreme – 1. del: Generična struktura za merilno opremo (IEC
61987-1:2024)
Industrial-process measurement and control - Data structures and elements in process
equipment catalogues - Part 1: Generic structures for measuring equipment (IEC 61987-
1:2024)
Industrielle Leittechnik - Datenstrukturen und -elemente in Katalogen der
Prozessleittechnik - Teil 1: Generische Strukturen für Messeinrichtungen (IEC 61987-
1:2024)
Mesure et commande dans les processus industriels - Eléments et structures de
données dans les catalogues d'équipements de processus - Partie 1: Structures
génériques pour équipements de mesure(IEC 61987-1:2024)
Ta slovenski standard je istoveten z: EN IEC 61987-1:2024
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61987-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2024
ICS 25.040.40; 35.240.50 Supersedes EN 61987-1:2007
English Version
Industrial-process measurement and control - Data structures
and elements in process equipment catalogues - Part 1: Generic
structures for measuring equipment
(IEC 61987-1:2024)
Mesure et commande dans les processus industriels - Industrielle Leittechnik - Datenstrukturen und -elemente in
Eléments et structures de données dans les catalogues Katalogen der Prozessleittechnik - Teil 1: Generische
d'équipements de processus - Partie 1: Structures Strukturen für Messeinrichtungen
génériques pour équipements de mesure (IEC 61987-1:2024)
(IEC 61987-1:2024)
This European Standard was approved by CENELEC on 2024-11-27. CENELEC 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 CENELEC 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 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61987-1:2024 E
European foreword
The text of document 65E/1113/FDIS, future edition 2 of IEC 61987-1, prepared by SC 65E "Devices
and integration in enterprise systems" of IEC/TC 65 "Industrial-process measurement, control and
automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-11-30
document have to be withdrawn
This document supersedes EN 61987-1:2007 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61987-1:2024 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60068 (series) NOTE Approved as EN 60068 (series)
IEC 60873-1:2003 NOTE Approved as EN 60873-1:2004 (not modified)
IEC 61082-1:2014 NOTE Approved as EN 61082-1:2015 (not modified)
IEC 61508 (series) NOTE Approved as EN 61508 (series)
IEC 61987-10:2009 NOTE Approved as EN 61987-10:2009 (not modified)
IEC 62828 (series) NOTE Approved as EN IEC 62828 (series)
IEC 82045-1:2001 NOTE Approved as EN 82045-1:2001 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- - + corrigendum May 1993
+ A1 1999 + A1 2000
+ A2 2013 + A2 2013
IEC 60654-1 1993 Industrial-process measurement and EN 60654-1 1993
control equipment - Operating conditions -
Part 1: Climatic conditions
IEC 60721-3 series Classification of environmental conditions - EN IEC 60721-3 series
Classification of groups of environmental
parameters and their severities
IEC 60751 2022 Industrial platinum resistance EN IEC 60751 2022
thermometers and platinum temperature
sensors
IEC/TR 61000-1-1 2023 Electromagnetic compatibility (EMC) - Part - -
1: General - Section 1: Application and
interpretation of fundamental definitions
and terms
IEC 61069 series Industrial-process measurement, control EN 61069 series
and automation - Evaluation of system
properties for the purpose of system
assessment
IEC 61298 series Process measurement and control devices EN 61298 series
- General methods and procedures for
evaluating performance
IEC 61326 series Electrical equipment for measurement, EN IEC 61326 series
control and laboratory use - EMC
requirements
IEC 61987-11 - Industrial-process measurement and EN 61987-11 -
control - Data structures and elements in
process equipment catalogues - Part 11:
List of properties (LOPs) of measuring
equipment for electronic data exchange -
Generic structures
ISO 3511-1 1977 Process measurement control functions - -
and instrumentation; Symbolic
representation - Part 1: Basic requirements
IEC 61987-1 ®
Edition 2.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial- process measurement and control – Data structures and elements in
process equipment catalogues –
Part 1: Generic structures for measuring equipment
Mesure et commande dans les processus industriels – Eléments et structures
de données dans les catalogues d'équipements de processus –
Partie 1: Structures génériques pour équipements de mesure
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40, 35.240.50 ISBN 978-2-8322-9817-6
– 2 – IEC 61987-1:2024 © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 Metadocuments . 18
4.1 General . 18
4.2 Metadocument clauses and features . 20
4.2.1 General . 20
4.2.2 Composite measuring equipment . 21
4.2.3 Measuring equipment with a digital communication interface . 22
4.3 Nomenclature . 22
5 Metadocument for process measuring equipment . 22
5.1 Identification . 22
5.1.1 General . 22
5.1.2 Document identification . 22
5.1.3 Date of issue . 22
5.1.4 Product type . 22
5.1.5 Product name . 22
5.1.6 Version . 22
5.1.7 Manufacturer . 23
5.2 Application . 23
5.3 Function and system design . 23
5.3.1 General . 23
5.3.2 Measuring principle . 23
5.3.3 Equipment architecture . 23
5.3.4 Communication and data processing . 23
5.3.5 Dependability . 23
5.4 Input . 24
5.4.1 General . 24
5.4.2 Measured variable . 24
5.4.3 Measuring range . 24
5.5 Output. 24
5.5.1 General . 24
5.5.2 Output signal . 24
5.5.3 Signal on alarm . 25
5.5.4 Load . 25
5.6 Digital Communication . 25
5.6.1 General . 25
5.6.2 Communication protocol . 25
5.6.3 Communication variable . 25
5.6.4 Physical layer . 25
5.7 Performance characteristics . 26
5.7.1 General . 26
5.7.2 Accuracy . 26
5.7.3 Measured error . 26
IEC 61987-1:2024 © IEC 2024 – 3 –
5.7.4 Hysteresis . 26
5.7.5 Non-repeatability . 26
5.7.6 Start-up drift . 26
5.7.7 Long-term drift . 26
5.7.8 Influence of ambient temperature . 26
5.7.9 Influence of medium temperature . 27
5.7.10 Settling time . 27
5.8 Operating conditions . 27
5.8.1 General . 27
5.8.2 Installation . 27
5.8.3 Environment . 28
5.8.4 Process . 29
5.9 Mechanical and electrical construction . 29
5.9.1 General . 29
5.9.2 Design . 29
5.9.3 Dimensions . 30
5.9.4 Weight . 30
5.9.5 Material . 30
5.9.6 Electrical connection . 30
5.9.7 Degree of protection . 30
5.9.8 Type of protection . 30
5.9.9 Process connection . 30
5.10 Operability . 30
5.11 Power supply . 31
5.12 Certificates and approvals. 31
5.13 Ordering information . 31
5.14 Documentation . 31
Annex A (normative) Classification of features as a function of measuring equipment . 32
Annex B (informative) Classification of features as a function of measurement
principle . 35
B.1 Additional features proposed for flow measurement principles . 35
B.1.1 Overview . 35
B.1.2 Output . 38
B.1.3 Performance characteristics . 38
B.1.4 Installation . 39
B.1.5 Process . 39
B.1.6 Mechanical construction – Field coil isolation class. 40
B.2 Additional features proposed for level measurement principles . 40
B.2.1 Overview . 40
B.2.2 Input . 43
B.2.3 Output – Signal resolution . 43
B.2.4 Performance characteristics – Influence of medium pressure . 43
B.2.5 Installation – Emitting angle . 43
B.2.6 Process . 43
B.3 Additional features proposed for pressure measurement principles . 44
B.3.1 Overview . 44
B.3.2 Function and system design – Measurement type . 47
B.3.3 Input . 47
B.3.4 Output . 48
– 4 – IEC 61987-1:2024 © IEC 2024
B.3.5 Performance characteristics . 49
B.3.6 Operating conditions/process. 49
B.3.7 Mechanical and electrical construction . 50
B.4 Additional features proposed for temperature measurement principles . 50
B.4.1 Overview . 50
B.4.2 Input . 53
B.4.3 Output – Linearization . 53
B.4.4 Performance characteristics . 54
B.5 Additional features proposed for density measurement principles . 54
B.5.1 Overview . 54
B.5.2 Performance characteristics – Influence of medium pressure . 57
B.5.3 Installation conditions – Cable length . 57
B.5.4 Process conditions . 57
Bibliography . 58
Figure 1 – Classification scheme for process measuring equipment (letter codes D, F,
L etc. identifying the measuring equipment function taken from ISO 3511-1) . 20
Table A.1 – Classification and documentation structure of measuring equipment . 32
Table B.1 – Classification and documentation structure of flow measuring equipment . 35
Table B.2 – Classification and documentation structure of level measuring equipment . 40
Table B.3 – Classification and documentation structure of pressure measuring
equipment . 44
Table B.4 – Classification and documentation structure of temperature measuring
equipment . 51
Table B.5 – Classification and documentation structure of density measuring
equipment . 54
IEC 61987-1:2024 © IEC 2024 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
DATA STRUCTURES AND ELEMENTS IN
PROCESS EQUIPMENT CATALOGUES –
Part 1: Generic structures for measuring equipment
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
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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
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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.
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6) All users should ensure that they have the latest edition of this publication.
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other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61987-1 has been prepared by subcommittee 65E: Devices and integration in enterprise
systems, of IEC technical committee 65: Industrial-process measurement and control. It is an
International Standard.
This second edition cancels and replaces the first edition published in 2006. This edition
constitutes a technical revision.
– 6 – IEC 61987-1:2024 © IEC 2024
This edition includes the following significant technical changes with respect to the previous
edition:
a) Addition of a subclause “Digital communication” in Clause 5, in order to allow a more
comprehensive description of the properties of such an interface;
b) Alignment of clause headings, as described in the introduction, to correspond with those of
the IEC CDD.
The text of this International Standard is based on the following documents:
Draft Report on voting
65E/1113/FDIS 65E/1136/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
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 webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 61987-1:2024 © IEC 2024 – 7 –
INTRODUCTION
In recent years, industry has become alert to the fact that a great deal of time and effort is
wasted in the transposition of measuring equipment data from one form to another. The
technical data of an instrument, for example, may exist at the manufacturer’s facility as two
separate data sets for paper and electronic presentation: the end-user requires much the same
data for works standards, engineering data bases or commercial data bases. In most cases,
however, the data cannot be automatically re-used because each application has its own
particular data storage format.
A second problem that belies the re-use of technical data is the content of the product
descriptions themselves. There is little agreement between manufacturers on what information
a technical data sheet should contain, how it should be arranged, or how the results, for example
of particular performance tests, should be presented. When transferring this information into a
data base, an end-user will always find gaps and proprietary interpretations that make the task
more difficult.
This part of IEC 61987 aims to solve these problems by defining a generic structure and its
content for industrial process measuring and control equipment. It builds upon the assumption
that, for a given class of measuring equipment, for example, pressure measuring equipment,
temperature measuring equipment or electromagnetic flow-measuring equipment, a set of non-
proprietary structures and product features can be specified. The resulting documents can not
only be exchanged electronically, but they can also be presented to humans in an easily
understandable form.
This part of IEC 61987 is applicable to electronic catalogues of process measuring equipment.
The structure also contains a great many product features that are common to measuring
equipment with binary output. Similarly, Annex B has been prepared with a view to future
standardisation.
This part of IEC 61987 is not intended as a replacement for existing standards, but rather as a
guiding document for all future standards which are concerned with the specifications of process
measuring equipment. Every revision of an existing standard should take into account the
structures and product features defined in Clause 5 or work towards a harmonisation.
Annex A contains a tabular overview of the classification and catalogue structure of process
measuring equipment. Annex B contains tables with a further sub-classification for specific
measured variables.
Wherever possible, existing terms from international standards have been used to name the
product features within the structures. In accordance with ISO 10241, Clause 3 contains a list
of terms, definitions and sources.
Documents created according to the standard are structured. A possible means of exchanging
structured information free of layout information is given by SGML (Standard Generalised
Mark-Up Language, ISO 8879) or XML (Extensible Mark-Up Language), which is derived from
it.
This part of IEC 61987 could also provide the basis for arranging of properties (data element
types) that conform to IEC 61360 or ISO 13584. This would require that the features, which in
this part of IEC 61987 can be textual units, graphical and tabular representations etc., be broken
down into properties (data element types) conformant to the said standards. For example, a
range would be expressed as a lower range-limit (LRL) and upper range-limit (URL) with unit of
measure; dimensions (L x B x H) as three separate elements, length, breadth and height with
unit of measure; or a derating curve as an appropriate series of data element pairs.
– 8 – IEC 61987-1:2024 © IEC 2024
This part of IEC 61987 conforms to ISO 15926-1 and -2 with respect to the data model and
associated reference data library (ISO 15926-4), for example, as used for the limited
classification structure. At the same time, it is also aligned to STEP: Standard for the Exchange
of Product Model Data. The data model and definitions of ISO 10303-221 use the ISO 15926-4
TS Reference Data Library as "library". The current standard can reproduce the data fields as
per this ISO 10303-221, including, for example, product structure data, dimensional data,
electrical connection data and product properties such as measuring range or power supply.
Since the publication of Edition 1 (2006) of this document a great deal of work has been done
on the development of the IEC Common Data Dictionary for equipment for industrial-process
automation. This, published as further parts of IEC 61987, covers not only measuring
instruments with a variety of inputs and outputs, but also final control elements, infrastructure
devices and in future process analysers.
For this reason, the title has been adjusted and the scope has been revised to reflect the current
content of the whole IEC 61987 standard series.
During the development of the IEC CCD a number of questions arose regarding the structure
proposed in this document, in particular the assignment of any digital communication interface
to the output. Although this is not strictly incorrect, it was thought that the properties of such an
interface could be better described separately. For this reason, a clause "Digital
communication" has been added to this Edition 2. In addition, the clause "Mechanical
construction" has been renamed "Mechanical and electrical construction" to reflect its true
content.
"Ordering information" is not found as a separate block in the IEC CDD, as it is assumed that
the properties there describe the type and particular instance of an already purchased device.
For an ordering process using IEC CDD properties, the necessary information is retrieved from
the "Identification" which also includes the ordering information.
"Certificates and approvals" can be found both in the device list of properties
(0112/2///61987#ABC156) and as a device aspect within the "device documents supplied"
(0112/2///61987#ABH517). This is also the location of the information contained in
"Documentation".
In preparing the current edition of this document all terms and definitions have been checked
and where necessary the references updated. Since the publication of Edition 1 in 2006 a
number of standards have been withdrawn. Where no suitable alternative source has been
found, a note to this effect has been added, but the original term and definition have been left
unchanged.
IEC 61987-1:2024 © IEC 2024 – 9 –
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
DATA STRUCTURES AND ELEMENTS IN
PROCESS EQUIPMENT CATALOGUES –
Part 1: Generic structures for measuring equipment
1 Scope
This part of IEC 61987 defines a generic structure in which product features of industrial
process measurement devices shall be arranged, in order to facilitate the understanding of
product descriptions when they are transferred from one party to another. It applies to the
production of catalogues supplied by the manufacturer of such devices and helps the user to
formulate their requirements.
This document will also serve as a reference document for all future standards which are
concerned with process measuring equipment.
In addition, this document also provides a basic structure for the production of further standards
listing the properties of process control equipment, for example, for actuators and infrastructure
devices.
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 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60654-1:1993, Industrial-process measurement and control equipment – Operating
conditions – Part 1: Climatic conditions
IEC 60721-3 (all parts), Classification of environmental conditions – Classification of groups of
environmental parameters and their severities
IEC 60751:2022, Industrial platinum resistance thermometers and platinum temperature
sensors
IEC TR 61000-1-1:2023, Electromagnetic compatibility (EMC) – Part 1: General – Section 1:
Application and interpretation of fundamental definitions and terms
IEC 61069 (all parts), Industrial-process measurement, control and automation – Evaluation of
system properties for the purpose of system assessment
IEC 61298 (all parts), Process measurement and control devices – General methods and
procedures for evaluating performance
IEC 61326 (all parts), Electrical equipment for measurement, control and laboratory use – EMC
requirements
– 10 – IEC 61987-1:2024 © IEC 2024
IEC 61987-11, Industrial-process measurement and control – Data structures and elements in
process equipment catalogues – List of properties (LOPs) of measuring equipment for electronic
data exchange – Generic structures
ISO 3511-1:1977, Process measurement control functions and instrumentation – Symbolic
representation – Part 1: Basic requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
accuracy
inaccuracy
quality which characterizes the ability of a measuring instrument
to provide an indicated value close to a true value of the measured value under reference
conditions
Note 1 to entry: This term is used in the "true value" approach.
Note 2 to entry: Accuracy is all the better when the indicated value is closer to the corresponding true value.
Note 3 to entry: Inaccuracy as defined in IEC 61298-2 includes the errors of non-linearity, non-repeatability and
hysteresis.
Note 4 to entry: Accuracy can be expressed as percentage of reading, span or full range etc. or as an absolute
value
[SOURCE IEC 60050-311:—, 311-06-08, modified – measured value instead of measurand,
under reference conditions added, Notes 3 and 4 added]
3.2
accuracy class
category of instruments or components thereof, all of which are intended to comply with a set
of specifications regarding uncertainty
[SOURCE IEC 60050-311:—, 311-06-09 modified – "or components" added]
3.3
ambient temperature
temperature measured at a representative point within the local environment, including adjacent
heat generating equipment, in which the measurement and control equipment will normally
operate, be stored or transported
SEE: 3.15
IEC 61987-1:2024 © IEC 2024 – 11 –
3.4
ambient temperature limits
extreme values of ambient temperature to which a device may be subjected without permanent
impairment of operating characteristics
Note 1 to entry: The performance characteristics may be exceeded in the range between the limits of normal
operation and the operating temperature limits.
SEE: 3.3, 3.33
3.5
ambient temperature range
range of ambient temperatures within which a device is designed to operate within specified
accuracy limits
SEE: 3.31, 3.33
3.6
analog signal
signal each information parameter of which directly represents the respective variable quantity
Note 1 to entry: An analog signal may be a continuous-value signal or a discrete-value signal as well as a
continuous-time or a discrete-time signal. Examples may be the pressure in a pneumatic final controlling element
with continuous-value and continuous-time information parameter (value of the pressure) as well as a position-
modulated pulse signal as an output signal of a computer based controller.
[SOURCE: IEC 60050-351:2013, 351-41-24]
3.7
binary signal
discrete-value signal each information parameter of which may assume one of two values
[SOURCE: IEC 60050-351:2013, 351-41-21]
3.8
climate class
climatic conditions, i.e. ambient temperature, pressure and humidity, to which the measurement
equipment can be subjected during operation (including shutdown), transport and storage (over
land or sea)
3.9
degree of protection
extent of protection provided by an enclosure against access to hazardous parts, against
ingress of solid foreign objects and/or ingress of water, and verified by standardized test
methods
[SOURCE: IEC 60529:1989, 3.3]
3.10
dependability
extent to which a system can be relied upon to perform a required function under given
conditions at a given instant of time or over a given time interval, assuming that the required
external sources are provided
[SOURCE: IEC 61069-1:2016, 3.1.22]
– 12 – IEC 61987-1:2024 © IEC 2024
3.11
device
material element or assembly of such elements intended to perform a required function
Note 1 to entry: A device may form part of a larger device.
[SOURCE: IEC 60050-151: 2001, 151-11-20]
3.12
digital signal
signal each information parameter of which represents the respective variable quantity in coded
manner as a symbol of a character set
Note 1 to entry: In most technical cases a digital signal is discrete-value and discrete-time.
Note 2 to entry: A digital signal requires an agreement about the code between transmitter and receiver of the
signal.
Note 3 to entry: In many technical cases the symbols may be interpreted as numbers.
[SOURCE: IEC 60050-351:2013, 351-41-25]
3.13
drift
change in the indication of a measuring system, generally slow, continuous, not necessarily in
the same direction and not related to a change in the quantity being measured
[SOURCE: IEC 60050-311:—, 311-06-13, modified – quantity being measured for measurand]
3.14
electromagnetic compatibility
ability of equipment or a system to function satisfactorily in its electromagnetic environment
without introducing intolerable electromagnetic disturbances to anything in that environment
[SOURCE: IEC 60050-161:1990, 161-01-07]
3.15
environmental condition
characteristics of the environment which may affect the performance of the device or system
Note 1 to entry: Examples of environmental conditions are pressure, temperature, humidity, vibration, radiation.
[SOURCE: IEC 60050-151:2001, 151-16-03]
3.16
environmental condition class
alphanumeric character sequence denoting a set of environmental conditions to which the
equipment is or can be subjected to during operation
Note 1 to entry: The IEC 60721 series defines classes for climatic, mechanical and other environmental influences.
3.17
environmental in
...
Frequently Asked Questions
SIST EN IEC 61987-1:2025 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 1: Generic structures for measuring equipment (IEC 61987-1:2024)". This standard covers: <!-- NEW! -->IEC 61987-1:2024 is available as <a href="https://webstore.iec.ch/publication/102696">IEC 61987-1:2024 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.</br></br>IEC 61987-1:2024 defines a generic structure in which product features of industrial process measurement devices shall be arranged, in order to facilitate the understanding of product descriptions when they are transferred from one party to another. It applies to the production of catalogues supplied by the manufacturer of such devices and helps the user to formulate their requirements. This document will also serve as a reference document for all future standards which are concerned with process measuring equipment. In addition, this document also provides a basic structure for the production of further standards listing the properties of process control equipment, for example, for actuators and infrastructure devices. This edition includes the following significant technical changes with respect to the previous edition: a) Addition of a subclause “Digital communication” in Clause 5, in order to allow a more comprehensive description of the properties of such an interface; b) Alignment of clause headings, as described in the introduction, to correspond with those of the IEC CDD.
<!-- NEW! -->IEC 61987-1:2024 is available as <a href="https://webstore.iec.ch/publication/102696">IEC 61987-1:2024 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.</br></br>IEC 61987-1:2024 defines a generic structure in which product features of industrial process measurement devices shall be arranged, in order to facilitate the understanding of product descriptions when they are transferred from one party to another. It applies to the production of catalogues supplied by the manufacturer of such devices and helps the user to formulate their requirements. This document will also serve as a reference document for all future standards which are concerned with process measuring equipment. In addition, this document also provides a basic structure for the production of further standards listing the properties of process control equipment, for example, for actuators and infrastructure devices. This edition includes the following significant technical changes with respect to the previous edition: a) Addition of a subclause “Digital communication” in Clause 5, in order to allow a more comprehensive description of the properties of such an interface; b) Alignment of clause headings, as described in the introduction, to correspond with those of the IEC CDD.
SIST EN IEC 61987-1:2025 is classified under the following ICS (International Classification for Standards) categories: 25.040.40 - Industrial process measurement and control; 35.240.50 - IT applications in industry. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 61987-1:2025 has the following relationships with other standards: It is inter standard links to SIST EN 61987-1:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN IEC 61987-1:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
La norme SIST EN IEC 61987-1:2025, concernant la mesure et le contrôle des processus industriels, est un document clé qui définit des structures génériques pour les équipements de mesure. Son champ d'application est particulièrement pertinent, car elle facilite la compréhension des descriptions de produits lors de leur transfert entre différents acteurs, ce qui est essentiel dans un milieu industriel où la précision et la clarté des données sont primordiales. Parmi les forces notables de cette norme, on peut souligner la manière dont elle organise les caractéristiques des dispositifs de mesure dans un format standardisé, permettant ainsi aux fabricants de catalogues de mieux répondre aux besoins des utilisateurs. La structure mise en avant dans la norme est conçue pour servir de référence pour toutes les futures normes en rapport avec les équipements de mesure des processus, assurant une cohérence dans l'industrie. Cette édition 2025 de la norme inclut des modifications techniques significatives par rapport à l'édition précédente. L'ajout d'une sous-clause sur la "Communication numérique" dans la Clause 5 élargit la description des propriétés des interfaces, ce qui est crucial dans un environnement de plus en plus numérique. De plus, l'alignement des titres de clause avec ceux du CDD de la CEI renforce la clarté et la navigation dans le document. La norme est ainsi non seulement d'une grande portée sur le plan de l'uniformisation des descriptions de produits, mais elle s'inscrit également comme un élément fondamental pour le développement de futures normes concernant les équipements de contrôle des processus, tel que les actionneurs et autres dispositifs d'infrastructure. Cette approche holistique et intégrée continue d'être d'une grande pertinence pour les professionnels du secteur, facilitant la standardisation et l'interopérabilité des équipements de mesure industrielle.
SIST EN IEC 61987-1:2025 표준은 산업 프로세스 측정 및 제어에 있어 필수적인 데이터 구조와 요소를 규정합니다. 이 표준의 주요 목적은 측정 장비의 제품 특성을 체계적으로 정리함으로써 정보의 이해를 돕고, 서로 다른 주체 간의 제품 설명 전달을 원활하게 하는 것입니다. 이 표준은 제조업체가 제공하는 카탈로그의 생산에 적용되며, 사용자가 자신의 요구 사항을 명확히 정의할 수 있도록 지원합니다. 또한, 프로세스 측정 장비와 관련된 모든 미래 표준에 대한 참고 문서로 기능할 것입니다. 이러한 점에서 SIST EN IEC 61987-1:2025 표준은 산업계에서의 활용도가 매우 높다고 볼 수 있습니다. 주요 강점 중 하나는 디지털 통신 관련 내용이 추가된 점입니다. 제5조에 “디지털 통신”이라는 하위를 추가함으로써, 이러한 인터페이스의 특성을 보다 포괄적으로 기술할 수 있게 되었습니다. 이는 현대 산업 환경에서 데이터 교환의 중요성을 감안할 때 매우 시의적절한 개선점이라 할 수 있습니다. 또한, 이 문서는 액추에이터 및 인프라 장비와 같은 프로세스 제어 장비의 특성을 나열하는 후속 표준의 기본 구조도 제공합니다. 이는 다양한 산업 장비 간의 상호운용성을 높이고, 궁극적으로는 효율적인 시스템 운영을 도모하는 데 기여할 것입니다. 마지막으로, 표준의 제목 및 조항 정렬도 IEC CDD와 일치하도록 조정되어, 전체적인 일관성을 더욱 강화하고 있습니다. 이러한 정리는 사용자가 문서를 쉽게 이해하고 활용할 수 있도록 도와줍니다. SIST EN IEC 61987-1:2025는 산업 프로세스 측정 및 제어 시스템의 발전에 필수적인 기준으로 자리 잡을 것입니다.
The SIST EN IEC 61987-1:2025 is a pivotal standard that significantly enhances the framework of industrial-process measurement and control through its formulation of data structures and elements within process equipment catalogues. The standard, which focuses on generic structures for measuring equipment, is crucial for ensuring that product features of industrial process measurement devices are systematically organized. This organization facilitates clearer communication and comprehension of product descriptions when transferred between parties, ultimately improving the user experience when formulating requirements for such devices. One of the standout strengths of this standard is its comprehensive approach to digital communication, as evidenced by the addition of a dedicated subclause in Clause 5. This inclusion allows for a more detailed and thorough description of the properties of interfaces, addressing the growing need for effective digital interactions in industrial processes. Additionally, the alignment of clause headings with those of the IEC Common Data Dictionary demonstrates an effort to standardize terminology and structure, fostering a greater consistency across international standards. The relevance of SIST EN IEC 61987-1:2025 extends beyond its current use; it is designed to serve as a foundational reference for the development of future standards concerning process measuring and control equipment. This foresight ensures that the standard will play an integral role in the evolution of industry practices and standards, particularly for areas requiring the cataloging of properties for devices like actuators and infrastructure equipment. In summary, the SIST EN IEC 61987-1:2025 provides a vital structure for manufacturers and users alike, enhancing clarity in communication and expanding the scope of standardization in industrial process measurement and control. Its contributions not only reflect the current technical advancements but also set a robust groundwork for future developments in the field.
SIST EN IEC 61987-1:2025は、工業プロセス測定および制御に関する重要な標準であり、特にプロセス機器カタログにおけるデータ構造と要素に焦点を当てています。この標準は、製造業者が提供する測定機器の特性を整理するための汎用構造を定義し、製品説明が一方から他方へ移転される際の理解を促進します。このような明確な構造は、ユーザーが自身の要求を具体化するのに寄与し、より効果的なコミュニケーションを実現します。 このドキュメントは、プロセス測定機器に関連する将来の標準のための参照文書としても機能し、業界全体における標準化の基盤を提供します。さらに、プロセス制御機器に関する追加の標準を生産するための基本構造も提供しており、アクチュエーターやインフラストラクチャデバイスの特性をリストアップする際に重要な役割を果たします。 この版では前回の版に対する技術的な変更も含まれており、特にClause 5における「デジタル通信」というサブクローズの追加により、インターフェースの特性についてより包括的な説明が可能となっています。また、導入部で説明されている通り、条項見出しの整合性も図られており、IEC CDDとの対応が強化されています。 全体として、SIST EN IEC 61987-1:2025は、工業プロセス測定の分野における重要な指針であり、今後の標準化においてもその影響を確実に与える内容となっています。
Die Norm SIST EN IEC 61987-1:2025 stellt einen bedeutenden Fortschritt im Bereich der industriellen Prozessmessung und -regelung dar. Sie bietet eine strukturierte, generische Grundlage für die Anordnung von Produkteigenschaften von Messgeräten, was die Verständlichkeit von Produktbeschreibungen bei der Übertragung zwischen verschiedenen Parteien erheblich verbessert. Diese Struktur fördert nicht nur die Klarheit, sondern erleichtert auch die Erstellung von Katalogen durch die Hersteller solcher Geräte, was für sowohl die Anbieter als auch die Anwender von großem Nutzen ist. Ein herausragendes Merkmal dieser Norm ist die Einführung eines Unterkapitels über die "Digitale Kommunikation", das eine umfassendere Beschreibung der Eigenschaften dieser Schnittstellentechnologien ermöglicht. Diese Erweiterung ist besonders relevant in einer Zeit, in der digitale Systeme zunehmend in der industriellen Automatisierung integriert werden. Die Norm fördert somit nicht nur die Standardisierung, sondern passt sich auch den modernen Anforderungen an die digitale Kommunikation an. Die systematische Ausrichtung der Kapitelüberschriften auf diejenigen des IEC CDD stellt sicher, dass die Norm sowohl mit internationalen Standards als auch mit zukünftigen Normen, die sich mit der Prozessmesstechnik befassen, kompatibel ist. Dies stärkt die Relevanz der SIST EN IEC 61987-1:2025 als Referenzdokument für künftige Entwicklungen in der Normung von Prozessmessgeräten und -anlagentechnik. Die Norm ist nicht nur eine Unterstützung bei der Formulierung von Anforderungen seitens der Benutzer, sondern bildet auch die Grundlage für die Entwicklung weiterer Standards, die die Eigenschaften von Regelgeräten und Infrastrukturkomponenten betreffen. Dies verdeutlicht die umfassende Anwendbarkeit und den langfristigen Nutzen der Norm in der Industrie. Insgesamt zeigt die SIST EN IEC 61987-1:2025 eine klare Ausrichtung auf die moderne Industrie und bietet eine notwendige Standardisierung, die die Interoperabilität und Effizienz in der Prozessmesstechnik erheblich verbessert.
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