IEC TS 62603-1:2014

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
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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

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

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
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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) 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.

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.

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.

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 conditions for industrial-process measurement and control equipment

– Part 4: Corrosive and erosive influences
IEC 60721-3-1, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 1: Storage
IEC 60721-3-2, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 2: Transportation
IEC 60721-3-3, Classification of environmental conditions – Part 3-3: Classification of groups
of environmental parameters and their severities – Stationary use at weatherprotected
locations
—————————
Withdrawn.
IEC 60721-3-4, Classification of environmental conditions – 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 sequential function charts

IEC 60870-4, Telecontrol equipment and systems – Part 4: Performance requirements

IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement

techniques – Electrostatic discharge immunity test

IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement
techniques – Power frequency magnetic field immunity test
IEC 61000-4-9, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 9: Pulse magnetic field immunity test. Basic EMC Publication
IEC 61000-4-10, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 10: Damped oscillatory magnetic field immunity test. Basic EMC
Publication
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests
IEC 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards –
Emission standard for industrial environments
IEC 61025, Fault tree analysis (FTA)

IEC 61069-1, Industrial-process measurement and control – Evaluation of system properties
for the purpose of system assessment – Part 1: General considerations and methodology
IEC 61069-4, Industrial-process measurement and control – Evaluation of system properties
for the purpose of system assessment – Part 4: Assessment of system performance
IEC 61069-5, Industrial-process measurement and control – Evaluation of system properties
for the purpose of system assessment – Part 5: Assessment of system dependability
IEC 61069-6, Industrial-process measurement and control – Evaluation of system properties
for the purpose of system assessment – Part 6: Assessment of system operability
IEC 61069-7, Industrial-process measurement and control – Evaluation of system properties
for the purpose of system assessment – Part 7: Assessment of system safety

– 14 – IEC TS 62603-1:2014 © IEC 2014

IEC 61069-8, Industrial-process measurement and 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 – Reliability block diagram and boolean

methods
IEC 61131-2, Programmable controllers – Part 2: Equipment requirements and tests

IEC 61131-3, Programmable controllers – Part 3: Programming languages

IEC 61140, Protection against electric shock – Common aspects for installation and
equipment
IEC 61158 (all parts), Industrial communication networks – Fieldbus specifications
IEC 61158-2, Industrial communication networks – Fieldbus specifications – Part 2: Physical
layer specification and service definition
IEC 61326-1, Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 1: General requirements
IEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic
safety-related systems
IEC 61511 (all parts), Functional safety – Safety instrumented systems for the process
industry sector
IEC 61512 (all parts), Batch control
IEC 61784 (all parts), Industrial communication networks – Profiles
IEC 62305-1, Protection against lightning – Part 1: General principles
IEC TR 62380, Reliability data handbook – Universal model for reliability prediction of
electronics components, PCBs and equipment
IEC 62381, Automation systems in the process industry – Factory acceptance test (FAT), site
acceptance test (SAT), site integration test (SIT)

IEC 62347, Guidance on system dependability specifications
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
ISO/IEC 14764:2006, Software Engineering – Software Life Cycle Processes – Maintenance
IEEE 802 (all parts), IEEE Standards for Local and Metropolitan Area Networks

ISA 18.1-1979 (R1992), Annunciator sequences and specifications

ISA 18.2-2009, Management of alarm systems for the process industries

ISA 37.1-1975 (R1982), Electrical transducer nomenclature and terminology

ISA S88 (all parts), Batch Control

3 Symbols and abbreviated terms

ADC Analog-to-Digital Converter
BMS Burner Management System
BPCS Basic Process Control System
CFC Continuous Function Chart
CR Control Room
CT Counter
DCS Distributed Control System
EMC ElectroMagnetic Compatibility
EFT/B Electric Fast Transient / Burst
ERP Enterprise Resource Planning
ESD Emergency Shut-Down
FAT Factory Acceptance Test
FBD Function Block Diagram
F&G Fire and Gas
HMI Human Machine Interface
KPI Key Performance Indicator
IFD Intelligent Field Device
IIS Internet Information Server
ICT Information Communication Technology
ISM Industrial Scientific and Medical
IPC In-plant Point of Coupling
LD Ladder Diagram
LOI Local Operator Interface
LPZ Lightning Protection Zone
MES Manufacturing Execution System
OLE  Object Linking and Embedding
OPC OLE for Process Control
OS Operator Station
PAM Plant Asset Management
PFD Probability of Failure on Demand
PFH Average Probability of Failure per Hour

– 16 – IEC TS 62603-1:2014 © IEC 2014

PLC Programmable Logic Controller

PCS Process Control System
PCU Process Control Unit
PCC Point of Common Coupling
RF Radio Frequency
SAT Site Acceptance Test
SCADA Supervisory, Control, And Data Acquisition

SELV Safety Extra Low Voltage

SFC Sequential Function Chart
SIL Safety Integrity Level
SIS Safety Instrumented System
SIT Site Integration Test
SLA Service Level Agreement
SLC Single Loop Controller
SOE Sequence Of Events
SSL Secure Socket Layers
VBA Visual Basic for Applications
4 Technical specifications of a PCS
For the technical evaluation of a Process Control System, it is necessary that the Technical
specification of the required PCS include a clear list of requirements to check-out. For the
sake of simplicity, it is useful to split the technical requirements into homogeneous groups,
each one containing a set of specific items. An example of a possible structure of the
technical requirements is shown in Figure 3. The itemised content of each group is described
in the subclauses of this technical specification reported in Figure 3. Application software
specifications are not included in the general PCS technical requirements since they do not
impact on the selection of the PCS.

PCS
pos. 4.1
System
technical requirements
architecture
pos. 4.2
Installation
environment
pos. 4.3 System
characteristics
pos. 4.4
Reliability &
availability
pos. 4.5 Input/Output
specifications
pos. 4.6 Software
requirements
pos. 4.7 HMI
pos. 4.8
Communication
requirements
Required
pos. 4.9
performances
Technical
pos. 4.10
support
FAT
pos. 4.11
specification
IEC  1816/14
Figure 3 – Content of the PCS technical specifications
The end-user or the delegated engineering company indicates the required functions and
performances of the PCS, and checks if the propo
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