CLC/TS 62603-1:2014

SLOVENSKI STANDARD
01-september-2015
Sistemi za upravljanje industrijskih procesov - Vodila za ocenjevanje sistemov za
upravljanje procesa - 1. del: Specifikacije (IEC/TS 62603-1:2014)
Industrial process control systems - Guidelines for evaluating process control systems -
Part 1: Specifications (IEC/TS 62603-1:2014)
Industrielle Prozessleitsysteme - Richtlinie für die Beurteilung der Leistung von
Prozessleitsystemen - Teil 1: Festlegungen (IEC/TS 62603-1:2014)
Systèmes de commande des processus industriels - Lignes directrices pour l'évaluation
des systèmes de commande de processus - Partie 1: Spécifications (CEI/TS 62603-
1:2014)
Ta slovenski standard je istoveten z: CLC/TS 62603-1:2014
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION CLC/TS 62603-1

SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
September 2014
ICS 25.040.40
English Version
Industrial process control systems - Guideline for evaluating
process control systems - Part 1: Specifications
(IEC/TS 62603-1:2014)
Systèmes de commande des processus industriels - Lignes Industrielle Prozessleitsysteme - Richtlinie für die
directrices pour l'évaluation des systèmes de commande de Beurteilung der Leistung von Prozessleitsystemen - Teil 1:
processus - Partie 1: Spécifications Festlegungen
(CEI/TS 62603-1:2014) (IEC/TS 62603-1:2014)
This Technical Specification was approved by CENELEC on 2013-06-26.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 62603-1:2014 E

Foreword
The text of document 65B/875/DTS, future edition 1 of IEC/TS 62603-1, prepared by
SC 65B "Measurement and control devices" of IEC/TC 65 "Industrial-process measurement, control
and automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the Technical Specification IEC/TS 62603-1:2014 was approved by CENELEC as a
Technical Specification without any modification.

- 3 - CLC/TS 62603-1:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60038 (mod) 2009 IEC standard voltages EN 60038 2011
IEC 60050 series International Electrotechnical Vocabulary - series
IEC 60079-10 -  Electrical apparatus for explosive gas EN 60079-10 -
atmospheres -- Part 10: Classification of
hazardous areas
IEC 60079-10-1 -  Explosive atmospheres -- Part 10-1: EN 60079-10-1 -
Classification of areas - Explosive gas
atmospheres
IEC 60079-10-2 -  Explosive atmospheres -- Part 10-2: EN 60079-10-2 -
Classification of areas - Combustible dust
atmospheres
IEC 60079-11 -  Electrical apparatus for explosive gas EN 60079-11 -
atmospheres -- Part 11: Intrinsic safety "i"
IEC 60079-14 -  Explosive atmospheres -- Part 14: EN 60079-14 -
Electrical installations design, selection
and erection
IEC 60300-3-4 -  Dependability management -- Part 3-4: EN 60300-3-4 -
Application guide - Guide to the
specification of dependability requirements
IEC 60654-1 -  Industrial-process measurement and EN 60654-1 -
control equipment - Operating conditions --
Part 1: Climatic conditions
IEC 60654-2 -  Operating conditions for industrial-process EN 60654-2 -
measurement and control equipment --
Part 2: Power
IEC 60654-3 -  Operating conditions for industrial-process EN 60654-3 -
measurement and control equipment --
Part 3: Mechanical influences
IEC 60654-4 -  Operating conditions for industrial-process EN 60654-4 -
measurement and control equipment --
Part 4: Corrosive and erosive influences
IEC 60721-3-1 -  Classification of environmental conditions - EN 60721-3-1 -
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 1: Storage
IEC 60721-3-2 -  Classification of environmental conditions - EN 60721-3-2 -
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 2: Transportation
IEC 60721-3-3 -  Classification of environmental conditions - EN 60721-3-3 -
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 3: Stationary use at
weatherprotected locations
IEC 60721-3-4 -  Classification of environmental conditions - EN 60721-3-4 -
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 4: Stationary use at
non-weatherprotected locations
IEC 60848 -  GRAFCET specification language for EN 60848 -
sequential function charts
IEC 60870-4 -  Telecontrol equipment and systems -- Part HD 546.4 S1 -
4: Performance requirements
IEC 61000-4-2 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-2 -
4-2: Testing and measurement techniques
- Electrostatic discharge immunity test
IEC 61000-4-3 -  Electromagnetic compatibility (EMC) - Part EN 61000-4-3 -
4-3: Testing and measurement techniques
- Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-4 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-4 -
4-4: Testing and measurement techniques
- Electrical fast transient/burst immunity
test
IEC 61000-4-5 -  Electromagnetic compatibility (EMC) - Part FprEN 61000-4-5 -
4-5: Testing and measurement techniques
- Surge immunity test
IEC 61000-4-6 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-6 -
4-6: Testing and measurement techniques
- Immunity to conducted disturbances,
induced by radio-frequency fields
IEC 61000-4-8 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-8 -
4-8: Testing and measurement techniques
- Power frequency magnetic field immunity
test
IEC 61000-4-9 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-9 -
4-9: Testing and measurement techniques
- Pulse magnetic field immunity test
+prA1
+AB
IEC 61000-4-10 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-10 -
4-10: Testing and measurement
techniques - Damped oscillatory magnetic
field immunity test
+prA1
+AB
IEC 61000-4-11 -  Electromagnetic compatibility (EMC) -- Part EN 61000-4-11 -
4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
IEC 61000-6-4 -  Electromagnetic compatibility (EMC) -- Part EN 61000-6-4 -
6-4: Generic standards - Emission
standard for industrial environments
IEC 61025 -  Fault Tree Analysis (FTA) EN 61025 -
IEC 61069-1 -  Industrial-process measurement and EN 61069-1 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 1: General considerations and
methodology
+EN 61069- 1993
1:1993/corrigendum
Nov. 1993
- 5 - CLC/TS 62603-1:2014
IEC 61069-4 -  Industrial process measurement and EN 61069-4 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 4: Assessment of system performance
IEC 61069-5 -  Industrial-process measurement and EN 61069-5 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 5: Assessment of system
dependability
IEC 61069-6 -  Industrial-process measurement and EN 61069-6 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 6: Assessment of system operability
IEC 61069-7 -  Industrial-process measurement and EN 61069-7 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 7: Assessment of system safety
IEC 61069-8 -  Industrial-process measurement and EN 61069-8 -
control - Evaluation of system properties
for the purpose of system assessment --
Part 8: Assessment of non-task-related
system properties
IEC 61078 -  Analysis techniques for dependability - EN 61078 -
Reliability block diagram and Boolean
methods
IEC 61131-2 -  Programmable controllers -- Part 2: EN 61131-2 -
Equipment requirements and tests
IEC 61131-3 -  Programmable controllers -- Part 3: EN 61131-3 -
Programming languages
IEC 61140 -  Protection against electric shock - EN 61140 -
Common aspects for installation and
equipment
IEC 61158 series Industrial communication networks - FprEN 61158 series
Fieldbus specifications
IEC 61326-1 -  Electrical equipment for measurement, EN 61326-1 -
control and laboratory use - EMC
requirements -- Part 1: General
requirements
IEC 61508 series Functional safety of EN 61508 series
electrical/electronic/programmable
electronic safety-related systems
IEC 61511 series  EN 61511 series
IEC 61512 series Batch control EN 61512 series
IEC 61784 series Industrial communication networks - EN 61784 series
Profiles
IEC 62305-1 (mod) -  Protection against lightning -- Part 1: EN 62305-1 -
General principles
+AA 201X
IEC 62347 -  Guidance on system dependability EN 62347 -
specifications
IEC 62381 -  Automation systems in the process EN 62381 -
industry - Factory acceptance test (FAT),
site acceptance test (SAT) and site
integration test (SIT)
IEC 62443-2-1 -  Industrial communication networks - - -
Network and system security -- Part 2-1:
Establishing an industrial automation and
control system security program

IEC 62443-3-3 -  Industrial communication networks - - -
Network and system security - Part 3-3:
System security requirements and security
levels
IEC/TR 62380 -  Reliability data handbook - Universal - -
model for reliability prediction of electronics
components, PCBs and equipment
ISO/IEC 14764 2006 Software Engineering - Software Life Cycle - -
Processes - Maintenance
IEEE 802.11 -  IEEE Standard for Information technology- - -
Telecommunications and information
exchange between systems-Local and
metropolitan area networks-Specific
requirements - Part 11: Wireless LAN
Medium Access Control (MAC) and
Physical Layer (PHY) Specifications
ISA 18.1- -  annunciator sequences and specifications - -
1979(R1992)
ISA 18.2-2009 -  Management of alarm systems for the - -
process industries
ISA 37.1-1975 -  Electrical Transducer Nomenclature & - -
(R1982) Terminology
ISA S88 -  Batch control - -
IEC TS 62603-1 ®
Edition 1.0 2014-05
TECHNICAL
SPECIFICATION
colour
inside
Industrial process control systems – Guideline for evaluating process control

systems –
Part 1: Specifications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XE
ICS 25.040.40 ISBN 978-2-8322-1623-1

– 2 – IEC TS 62603-1:2014 © IEC 2014
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 12
3 Symbols and abbreviated terms . 15
4 Technical specifications of a PCS . 16
4.1 System architecture . 19
4.1.1 General . 19
4.1.2 Technology and scope of the PCS . 20
4.1.3 Basic architecture . 20
4.1.4 Total number of I/Os . 21
4.1.5 Number of tags . 21
4.1.6 Number of control loops . 22
4.1.7 Reference standards and marking . 22
4.2 Installation environment . 22
4.2.1 General . 22
4.2.2 Climatic conditions . 22
4.2.3 Power supply . 24
4.2.4 EMC requirements . 26
4.2.5 Mechanical vibrations . 38
4.2.6 Corrosive and erosive influences . 39
4.2.7 Lightning protection . 41
4.2.8 Hazardous area . 41
4.2.9 Earth connection. 43
4.3 System characteristics . 43
4.3.1 General . 43
4.3.2 System scalability . 43
4.3.3 System expandability . 44
4.3.4 Integration of sub-systems . 44
4.3.5 System configuration . 44
4.3.6 Automatic documentation. 45
4.3.7 Programming languages for control . 45
4.3.8 PCS localisation . 47
4.4 System dependability . 48
4.4.1 General . 48
4.4.2 Reliability. 48
4.4.3 Availability . 49
4.4.4 Functional redundancy criteria . 50
4.4.5 Maintainability . 51
4.4.6 Spare capacity of the system . 51
4.4.7 Safety . 52
4.5 Input/Output specifications . 54
4.5.1 General . 54
4.5.2 Conventional Input/Output . 54
4.5.3 Input/Output from/to Smart Devices . 55
4.5.4 Serial connection to Remote I/O . 56
4.5.5 Hot-swap . 56

IEC TS 62603-1:2014 © IEC 2014 – 3 –
4.5.6 Module diagnostic . 56
4.5.7 Input validation . 56
4.5.8 Read-back function . 56
4.5.9 Forced output . 56
4.5.10 Special inputs . 56
4.5.11 Intrinsically safe I/Os . 56
4.5.12 Monitoring functions . 56
4.6 Software requirements . 57
4.6.1 General . 57
4.6.2 Cyber security . 57
4.6.3 Software simulator . 58
4.6.4 Remote supervisory functions . 59
4.6.5 On-line documentation . 59
4.7 Human Machine Interface (HMI) . 59
4.7.1 General . 59
4.7.2 Control room HMI hardware – architecture . 59
4.7.3 Control room HMI hardware – operator stations . 60
4.7.4 Control room HMI hardware – monitors . 60
4.7.5 Control room HMI hardware – special displays . 60
4.7.6 Control room HMI software . 60
4.7.7 Requirements for Local Operator Interface . 61
4.7.8 Alarm management . 61
4.7.9 Events management . 64
4.7.10 Historical archiving . 65
4.7.11 Trend and statistics management . 65
4.8 Communication requirements . 66
4.8.1 General . 66
4.8.2 Field equipment serial communication . 67
4.8.3 Controller network . 68
4.8.4 Control room network . 68
4.8.5 External link. 68
4.8.6 Communication interfaces. 68
4.8.7 Communication with ERP system . 69
4.8.8 Communication with Manufacturing Execution System (MES) . 69
4.9 Required performances . 70
4.9.1 General . 70
4.9.2 Time performances of the PCS . 70
4.9.3 Controller performances . 71
4.9.4 HMI performances . 72
4.9.5 Plant Asset Management . 72
4.10 Life cycle support . 73
4.10.1 General . 73
4.10.2 Training of the personnel . 73
4.10.3 Technical support for operation . 74
4.10.4 Warranty . 74
4.10.5 Software upgrade . 74
4.10.6 References of the supplier . 74
4.11 FAT specification . 75
4.11.1 General . 75

– 4 – IEC TS 62603-1:2014 © IEC 2014
4.11.2 FAT for Hardware Supply. 75
4.11.3 FAT for Application Software . 76
Annex A (informative) Table for “System Architecture” . 79
Annex B (informative) Table for “Installation Environment” . 81
Annex C (informative) Table for “System characteristics” . 86
Annex D (informative) Table for “System dependability” . 88
Annex E (informative) Table for “Input/Output specification” . 90
Annex F (informative) Table for “Software requirements” . 93
Annex G (informative) Table for “Human Machine Interface (HMI)” . 95
Annex H (informative) Table for “Communication requirements” . 99
Annex I (informative) Table for “Required performances” . 102
Annex J (informative) Table for “Life Cycle Support” . 104
Annex K (informative) Table for “FAT specifications” . 106

Figure 1 – Procedure for specifying and testing a PCS . 10
Figure 2 – The process of PCS evaluation . 11
Figure 3 – Content of the PCS technical specifications . 17
Figure 4 – Example of a layout drawing . 21
Figure 5 – The dependability concept . 48
Figure 6 – Architectures of BPCS and ESD . 53
Figure 7 – Communication networks in a PCS . 67
Figure 8 – FAT levels of depth . 77

Table 1 – Summary table for proposal evaluation . 18
Table 2 – Example of proposal global vote calculation . 19
Table 3 – Climatic condition parameters and severities for classes of location . 23
Table 4 – Base immunity requirements . 27
Table 5 – Immunity requirements for industrial applications . 28
Table 6 – ED classed . 29
Table 7 – Test levels for ED . 29
Table 8 – Test levels for RF fields . 30
Table 9 – Test levels for Electrical Fast Transient/Burst . 31
Table 10 – Test levels for surge protection . 33
Table 11 – Test levels for RF induced disturbances . 34
Table 12 – Test levels for power frequency magnetic fields . 35
Table 13 – Test levels for pulse magnetic field . 36
Table 14 – Test levels for damped oscillatory magnetic field . 36
Table 15 – Test levels for voltage dips . 37
Table 16 – Test levels for short interruptions . 37
Table 17 – Table for emission limits . 38
3 3
Table 18 – Concentration of gas and vapour contaminants (in cm /m ) . 40
Table 19 – Aerosol contaminants . 40
Table 20 – PFD and PFH related to SIL . 54

IEC TS 62603-1:2014 © IEC 2014 – 5 –
Table 21 – Time resolution and discrimination capacity . 71
Table 22 – Example of FAT Specification . 78

– 6 – IEC TS 62603-1:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL PROCESS CONTROL SYSTEMS –
GUIDELINE FOR EVALUATING PROCESS CONTROL SYSTEMS –

Part 1: Specifications
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.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 62603-1, which is a technical specification, has been prepared by subcommittee 65B:
Measurement and control devices, of IEC technical committee 65: Industrial-process
measurement, control and automation.

IEC TS 62603-1:2014 © IEC 2014 – 7 –
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
65B/875/DTS 65B/905/RVC
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62603 series, published under the general title Industrial process
control systems – Guideline for evaluating process control systems, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 8 – IEC TS 62603-1:2014 © IEC 2014
INTRODUCTION
This International Technical Specification defines a procedure for verifying if a given Process
Control System (PCS) satisfies the technical requirements specified by the end-user or by an
engineering company for a specific application. The basic concept of this document is that
“you can test what you have specified”. A testing procedure is meaningless if it does not
include a procedure for specifying the technical requirements to be tested.
This Technical Specification was developed in the framework of the existing standards that
define the general concepts of PCS design and testing, that is:
IEC 61069 Industrial process measurement and control – Evaluation of system properties
for the purpose of system assessment – Parts 1,2,3,4,5,6,7,8
IEC 62381 Automation systems in the process industry – Factory acceptance test (FAT),
site acceptance test (SAT), and site integration test (SIT)
The group of standards 61069 defines the general methodology, definitions, and procedures
for assessing the functional characteristics of a PCS (Part 1 and 2) in terms of functionalities
(Part 3), performances (Part 4), dependability (Part 5), operability (Part 6), safety (Part 7),
and non-task-related properties (Part 8). IEC 62381 gives additional details about the general
procedures for testing a PCS in factory, on site, and after the general integration of the
complete system.
The IEC 62603 fully complies with these standards and gives a detailed guidance for
specifying a PCS and for testing the specified functions. IEC 61069 and 62381 create a
framework that is valid for any PCS as a system, while 62603, inside this framework, gives
the users guidance for specifying the PCS he needs for carrying out the required functions.

IEC TS 62603-1:2014 © IEC 2014 – 9 –
INDUSTRIAL PROCESS CONTROL SYSTEMS –
GUIDELINE FOR EVALUATING PROCESS CONTROL SYSTEMS –

Part 1: Specifications
1 Scope
This International Technical Specification describes methods and provides guidance for the
evaluation of Process Control Systems (PCS) during the phase of selection between different
proposals.
The methods of evaluation proposed in this technical specification are intended for use mainly
by users, engineering companies, or independent test laboratories, to verify manufacturers’
proposals during the tender (as described in IEC 62603-1) or the provided Process Control
System during the FAT procedure.
The specification and test procedures specified in this technical specification apply to a large
variety of automation systems, both based on conventional technology (e.g. 4 mA to 20 mA
field devices) and based on Intelligent Field Devices (IFD) with serial communication of any
kind. For this reason, the tests specified in this technical specification are not necessarily
sufficient for automation systems specifically designed for special duties. In such cases, user
and manufacturer should define additional tests for assessing specific functions or
performances.
The procedure for specifying the PCS technical requirements, evaluating the different offers,
and carrying out the tests on the chosen PCS differs from one company to another and from
one project to another, but some common steps exist, as Figure 1 shows. The IEC 62603
considers this process divided into two steps: definition of the PCS technical requirements (in
the scope of IEC 62603-1) and test of the chosen PCS.

– 10 – IEC TS 62603-1:2014 © IEC 2014
PCS
PROCESS
UNDER TEST
REQUIREMENTS
PART
PART
PCS
PCS TECHNICAL
TECHNICAL
PROPOSAL
SPECIFICATIONS
VENDOR SPECIFIC
COMPONENT LIST
IEC  1814/14
Figure 1 – Procedure for specifying and testing a PCS
The first step of the specification of a PCS is to define the process requirements, in terms of
required performances to achieve a satisfactory control of the process. Normally these
requirements are defined with a joint effort of process engineers, automation, and
instrumentation experts. From the process requirements, the automation engineers derive the
PCS technical requirements, that is the functionalities the PCS should offer to achieve the
required goals. Based on the process requirements and the PCS technical requirements,
suppliers prepare their technical offers, and the evaluation procedure starts. IEC 62603-1
suggests a possible procedure for assessing the fitness of a proposed PCS to the
specifications, based on a simple algorithm that considers the weight (importance) of each
single required function.
After the selection of the PCS maker, the implementation stage starts. When the PCS is
ready, prior to shipping the PCS on site and sometimes even during the implementation
stage, the user/engineer may perform a set of Factory Acceptance Tests.
The technical evaluation of the tenders (IEC 62603-1) is mostly based on the evaluation of
documents and data-sheets, and it may require simple calculations, e.g. for performance
calculation. These verifications are based on general data of the proposed automation
systems, not dedicated to any specific piece of hardware of software.
On the contrary, the FAT is mostly based on testing activities in laboratories or factories on a
specific PCS including both the physical devices and the application software.
Figure 2 shows the typical process of PCS evaluation in an automation project.

IEC TS 62603-1:2014 © IEC 2014 – 11 –
PCS
REQUIREMENTS TECHNICAL
TECHNICAL
PROPOSAL
(User/Engineering) COMPLIANCE CHART
EVALUATION
TECH. PROPOSAL
(from Vendor 1)
IEC 62603
PART 1
TECH. PROPOSAL
(from Vendor 2)
TECH. PROPOSAL
(from Vendor n)
FUNCTIONAL
PCS
FAT
REQUIREMENTS
EVALUATION
ACCEPTANCE
(User/Engineering)
(FAT)
PCS
UNDER TEST
IEC  1815/14
Figure 2 – The process of PCS evaluation
The first evaluation is needed to select one supplier from a number of proposals. The
reference document is the PCS technical requirements provided by the user or by a delegated
engineering company. Scope of the evaluation at this stage is to verify if the proposed
systems support the specified functions and performances. Evaluation is mostly based on the
documents supplied by the supplier, such as technical data-sheets, manuals, conformity
declarations, and so on. The PCS technical requirements should include the description of the
required FAT procedure.
After the supplier's selection, the detailed engineering stage starts, and the user (or the
delegated engineering company) produces a document that describes the software
requirements in details. The PCS supplier assembles the PCS and implements the logic. After
the completion of in-house tests, the Factory Acceptance Tests starts.
Several aspects of process control systems are in the scope of existing IEC standards that
are to be considered together with the present document. This technical specification reports
abstracts of the cited IEC standards based on the revisions available at the date of
submission. Users should consult the most recent versions of the referenced standards for the
actual requirements.
TEST BASED DOCUMENT BASED
– 12 – IEC TS 62603-1:2014 © IEC 2014
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60038:2009, IEC standard voltages
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
)
IEC 60079-10, Electrical apparatus for explosive gas atmospheres – Part 10: Classification of
hazardous areas
IEC 60079-10-1, Explosive atmospheres – Part 10-1: Classification of areas – Explosive gas
atmospheres
IEC 60079-10-2, Explosive atmospheres – Part 10-2: Classification of areas – Combustible
dust atmospheres
IEC 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-14, Explosive atmospheres – Part 14: Electrical installations design, selection and
erection
IEC 60300-3-4, Dependability management – Part 3-4: Application guide – Guide to the
specification of dependability requirements
IEC 60654-1, Industrial-process measurement and control equipment – Operating conditions –
Part 1: Climatic conditions
IEC 60654-2, Operating conditions for industrial-process measurement and control equipment
– Part 2: Power
IEC 60654-3, Operating conditions for industrial-process measurement and control equipment
– Part 3: Mechanical influences
IEC 60654-4, Operating conditi
...