ISO/DIS 23247-3

Automation systems and integration -- Digital Twin framework for manufacturing

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DRAFT INTERNATIONAL STANDARD
ISO/DIS 23247-3
ISO/TC 184/SC 4 Secretariat: ANSI
Voting begins on: Voting terminates on:
2020-07-27 2020-10-19
Automation systems and integration — Digital Twin
framework for manufacturing —
Part 3:
Digital representation of manufacturing elements
ICS: 25.040.40; 35.240.50
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
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Reference number
NATIONAL REGULATIONS.
ISO/DIS 23247-3:2020(E)
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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ISO/DIS 23247-3:2020(E)
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© ISO 2020

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ISO/DIS 23247-3:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Digital representation of the observable manufacturing elements ................................................................2

5 Information attributes of the observable manufacturing elements ..............................................................2

5.1 General ........................................................................................................................................................................................................... 2

5.2 Personnel information ..................................................................................................................................................................... 3

5.3 Equipment information ................................................................................................................................................................... 4

5.4 Material information .......................................................................................................................................................................... 4

5.5 Process information ........................................................................................................................................................................... 5

5.6 Facility information............................................................................................................................................................................. 6

5.7 Environment information .............................................................................................................................................................. 7

5.8 Product information ........................................................................................................................................................................... 7

5.9 Supporting document information ........................................................................................................................................ 8

Annex A (informative) Existing technologies for representing the observable

manufacturing elements ...........................................................................................................................................................................10

Annex B (informative) An example of information attributes ................................................................................................12

Bibliography .............................................................................................................................................................................................................................14

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ISO/DIS 23247-3:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 184, Automation systems and integration,

Subcommittee SC 4, Industrial Data.
A list of all parts in the ISO 23247 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
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ISO/DIS 23247-3:2020(E)
Introduction

The ISO 23247 series defines a framework to support the creation of Digital Twins of observable

manufacturing elements including personnel, equipment, materials, manufacturing processes, facilities,

environment, products, and supporting documents.
The scopes of the four parts of this series are defined below:
— Part 1: Overview and general principles

General principles and requirements for developing Digital Twins in manufacturing;

— Part 2: Reference architecture
Reference architecture with functional views;
— Part 3: Digital representation of manufacturing elements
List of basic information attributes for the observable manufacturing elements;
— Part 4: Information exchange

Technical requirements for information exchange between entities within the reference

architecture.

The framework is targeted to all types of manufacturing including discrete and continuous

manufacturing of parts, assemblies and material. The actual type of manufacturing supported by

a particular implementation depends on the standards and technologies available to model the

observable manufacturing elements.

Digital Twin use cases that conform to the framework will be detailed in a series of technical reports

attached to this series. Preliminary outlines for three use cases are given in the Annex of Part 4.

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DRAFT INTERNATIONAL STANDARD ISO/DIS 23247-3:2020(E)
Automation systems and integration — Digital Twin
framework for manufacturing —
Part 3:
Digital representation of manufacturing elements
1 Scope

This part of ISO 23247 provides a list of basic information attributes for the observable manufacturing

elements.

The ISO 23247 series defines a framework to guide the creation of Digital Twins of observable

manufacturing elements including personnel, equipment, materials, processes, facilities, environment,

products, and supporting documents.
The following are within the scope of this part of ISO 23247:
— digital representation of observable manufacturing elements.
The following are described in other parts of ISO 23247:
— overview and general principles (Part 1);
— reference architecture (Part 2);
— Information exchange requirements for Digital Twins (Part 4).

The following are outside of the scope of ISO 23247, but will be identified as use cases in technical

reports.

— selection of the manufacturing devices and other resources to be represented by Digital Twins;

— selection of the manufacturing processes to be represented by Digital Twins;
— selection of the manufacturing products to be represented by Digital Twins.
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.

ISO 23247-1, Automation systems and integration — Digital Twin framework for manufacturing — Part 1:

Overview and general principles

ISO 23247-2, Automation systems and integration — Digital Twin framework for manufacturing — Part 2:

Reference architecture
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 23247-1 apply.

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ISO/DIS 23247-3:2020(E)

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Digital representation of the observable manufacturing elements

Digital representation of the observable manufacturing elements shall include information that is both

static and dynamic. Information that does not change during manufacturing is classified as static.

For example, the serial number of a piece of material is static. However, the shape of the material, if it

changes during manufacturing processes, is dynamic.

The blue-coloured box in Figure 1 shows the types of observable manufacturing elements represented

by the Core Entity defined in ISO 23247-2.

Figure 1 — The types of observable manufacturing elements in reference architecture (blue-

coloured box)
5 Information attributes of the observable manufacturing elements
5.1 General

Standards such as IEC 62264-2 and ISO 10303 contain detailed information models for representing

the observable manufacturing elements. An implementation of ISO 23247 shall select the models most

appropriate for its use case.

Annex A lists some standards and technologies that can be selected for the digital representation.

Annex B provides UML and XML descriptions for an example.
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ISO/DIS 23247-3:2020(E)

Table 1 shows a template used to describe the information attributes. Types of information attributes

are not limited to those given in Table 1, but should be extended for specific use cases. The notation is

taken from IEC 62264-2.
Table 1 — Information attributes for the observable manufacturing elements
Attribute Description Mandatory (M)
Optional (O)
Identifier Value used to uniquely identify an observable manufacturing element M

Characteristics A typical or noticeable feature of an observable manufacturing element M

Schedule Time information bound to a manufacturing process M
Status Situation of an observable manufacturing element involved in a manu- M
facturing process

Location Geographical or relative location information of an observable manufac- M

turing element
Report Description of activity done by or onto an observable manufacturing M
element

Relationship A connection information between two or more observable manufactur- M

ing elements
… … …
5.2 Personnel information

Personnel includes employees who are engaged directly or indirectly in manufacturing processes.

Personnel information attributes and examples are shown in Table 2.
Table 2 — Information attributes for Personnel
Attribute Description Examples
Identifier ID assigned to a person • employee ID: 11223

Characteristics Personal properties including skill level, classifica- • skill level: 2

tion, e.g.,
• classification: 3
• skill level
— 1: master
— 2: journeyman
— 3: apprentice
• classification
— 1: researcher
— 2: administrator
— 3: technician
— 4: driver
Schedule Personal working schedule, e.g., • working: 8AM to 5PM
• working
• day-off
Status Current working status • on break
Location Location of the person • Operator #1: WorkUnit #3 and
50 cm away from Robot #2.
Report Activity report of the person • May 14 2019: 8 hours of work
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ISO/DIS 23247-3:2020(E)
Table 2 (continued)
Attribute Description Examples

Relationship Information regarding collaborations among • Operator #1 is the supervisor

personnel and other observable manufacturing of operator #2.
elements
• WorkUnit #3 must have 4 per-
sons for safety reasons.
• Operator #1 and Operator #2
are working in the WorkUnit #3.
• Operator #1 and Operator #2
are 70 cm away from Machine #2.
5.3 Equipment information

Equipment is a physical element that carries out an operation directly or indirectly for a manufacturing

process. Equipment information attributes and examples are shown in Table 3.
Table 3 — Information attributes for equipment
Attribute Description Examples
Identifier ID assigned to the equipment • asset ID: dtm-200327-11
Characteristics Functionalities, features of the equipment, e.g., • milling
• milling
• turning
• grinding
• and pressing

Schedule Plan for carrying out manufacturing activities, e.g., • Maintenance for Machine #1 is

Monday to Friday first shift scheduled on every Sunday.
Status Current state of the equipment, e.g., • on
• on / off • energy usage: 10kWh
• working / breakdown • temperature: 25°C
• energy usage (unit: kWh)
• temperature (unit: °C, °F)
• noise level (unit: dB)
Location Location of the equipment • Machine #2: Work Unit #2 in
Room #3

Report Activity report of the equipment engaged in manu- • May 14 , 2019 9 AM to 6 PM:

facturing, maintenance, etc. Regular Maintenance
• May 14 , 2019 11 AM: Ma-
chine #1 reports high temperature.

Relationship Relationship information between the equipment • Machine #1 operates with

and other observable manufacturing elements Material #2.
• Machine #1 is operated in
WorkCenter #5.
5.4 Material information

Material includes physical matter that becomes a part or the whole of a product e.g., metal block,

glass panel, etc., or is used to aid manufacturing processes, e.g., cleaning fluid, coolant, etc. Material

information attributes and examples are shown in Table 4.
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Table 4 — Information attributes for material
Attribute Description Examples
Identi
...