Transmitters for use in industrial-process control systems -- Part 3: Methods for performance evaluation of intelligent transmitters

This part of IEC 60770 specifies the following methods. Methods for - reviewing the functionality and the degree of intelligence in intelligent transmitters; - testing the operational behaviour, as well as the static and dynamic performance of an intelligent transmitter. Methodologies for - determining the reliability and diagnostic features used to detect malfunctions; - determining the communication capabilities of the intelligent transmitters in a communication network. The methods and methodologies are applicable to intelligent transmitters, which convert one or more physical, chemical or electrical quantities into digital signals for use in a communication network or into analogue electrical signals (as specified in the IEC 60381 series). The methods and methodologies listed in this part of IEC 60770 are intended for use by: - manufacturers to determine the performance of their products and - users or independent testing laboratories to verify equipment performance specifications. Manufacturers of intelligent transmitters are urged to apply this part of IEC 60770 at an early stage of development. This standard is intended to provide guidance for designing evaluations of intelligent transmitters by providing: - a checklist for reviewing the hardware and software design in a structured way; - test methods for measuring and qualifying the performance, dependability and operability under various environmental and operational conditions; - methods for reporting the data obtained.

Messumformer für industrielle Prozessleittechnik -- Teil 3: Verfahren zur Bewertung der Leistungsfähigkeit von intelligenten Messumformern

Transmetteurs utilisés dans les systèmes de conduite des processus industriels -- Partie 3: Méthodes pour l'évaluation des performances des transmetteurs intelligents

Oddajniki za uporabo v sistemih vodenja industrijskih procesov - 3. del: Metode vrednotenja lastnosti inteligentnih oddajnikov (IEC 60770-3:2006)

General Information

Status
Published
Publication Date
31-Dec-2006
Withdrawal Date
31-Dec-2006
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2007
Due Date
01-Jan-2007
Completion Date
01-Jan-2007

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SLOVENSKI STANDARD
SIST EN 60770-3:2007
01-januar-2007
Oddajniki za uporabo v sistemih vodenja industrijskih procesov - 3. del: Metode
vrednotenja lastnosti inteligentnih oddajnikov (IEC 60770-3:2006)
Transmitters for use in industrial-process control systems - Part 3: Methods for
performance evaluation of intelligent transmitters
Messumformer für industrielle Prozessleittechnik - Teil 3: Verfahren zur Bewertung der
Leistungsfähigkeit von intelligenten Messumformern
Transmetteurs utilisés dans les systèmes de conduite des processus industriels - Partie
3: Méthodes pour l'évaluation des performances des transmetteurs intelligents
Ta slovenski standard je istoveten z: EN 60770-3:2006
ICS:
25.040.40
SIST EN 60770-3:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 60770-3

NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM

ICS 25.040.40


English version


Transmitters for use in industrial-process control systems
Part 3: Methods for performance evaluation
of intelligent transmitters
(IEC 60770-3:2006)


Transmetteurs utilisés dans les systèmes Messumformer für industrielle
de conduite des processus industriels Prozessleittechnik
Partie 3: Méthodes pour l'évaluation des Teil 3: Verfahren zur Bewertung der
performances des transmetteurs Leistungsfähigkeit von intelligenten
intelligents Messumformern
(CEI 60770-3:2006) (IEC 60770-3:2006)




This European Standard was approved by CENELEC on 2006-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

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

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60770-3:2006 E

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EN 60770-3:2006 - 2 -

Foreword
The text of document 65B/580/FDIS, future edition 1 of IEC 60770-3, prepared by SC 65B, Devices, of
IEC TC 65, Industrial-process measurement and control, was submitted to the IEC-CENELEC parallel
vote and was approved by CENELEC as EN 60770-3 on 2006-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-02-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-05-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60770-3:2006 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 60770-3:2006

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.


Publication Year Title EN/HD Year

1)
IEC 60050-300 - International Electrotechnical Vocabulary - - -
Electrical and electronic measurements and
measuring instruments -
Part 311: General terms relating to
measurements -
Part 312: General terms relating to electrical
measurements -
Part 313: Types of electrical measuring
instruments -
Part 314: Specific terms according to the type
of instrument


1) 2)
IEC 60068-2-1 - Environmental testing - EN 60068-2-1 1993
Part 2: Tests - Tests A: Cold


1) 3) 2)
IEC 60068-2-2 - Basic environmental testing procedures - EN 60068-2-2 1993
Part 2: Tests - Tests B: Dry heat


1) 2)
IEC 60068-2-6 - Environmental testing - EN 60068-2-6 1995
Part 2: Tests - Test Fc: Vibration (sinusoidal)


1) 4) 2)
IEC 60068-2-31 - Basic environmental testing procedures - EN 60068-2-31 1993
Part 2: Tests - Test Ec: Drop and topple,
primarily for equipment-type specimens


1) 2)
IEC 60068-2-78 - Environmental testing - EN 60068-2-78 2001
Part 2-78: Tests - Test Cab: Damp heat,
steady state


IEC 60079 Series Electrical apparatus for explosive gas EN 60079 Series
atmospheres


5)
IEC 60381 Series Analogue signals for process control systems - -


IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
+ A1 1999 (IP Code) + corr. May 1993
+ A1 2000



1)
Undated reference.
2)
Valid edition at date of issue.
3)
EN 60068-2-2 includes supplement A to IEC 60068-2-2.
4)
EN 60068-2-31 includes A1 to IEC 60068-2-31.
5)
IEC 60381-1:1982 is harmonized as HD 452.1 S1:1984.

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EN 60770-3:2006 - 4 -
Publication Year Title EN/HD Year
IEC 60654 Series Industrial-process measurement and control EN 60654 Series
equipment - Operating conditions


IEC 60721-3 Series Classification of environmental conditions - EN 60721-3 Series
Part 3: Classification of groups of
environmental parameters and their severities


IEC 60770-1 1999 Transmitters for use in industrial-process EN 60770-1 1999
control systems -
Part 1: Methods for performance evaluation


IEC 61010-1 2001 Safety requirements for electrical equipment EN 61010-1 2001
+ corr. May 2001 for measurement, control, and laboratory use + corr. June 2002
+ corr. April 2003 Part 1: General requirements


IEC 61032 1997 Protection of persons and equipment by EN 61032 1998
+ corr. January 2003 enclosures - Probes for verification


2)
IEC 61158 Series Digital data communications for measurement CLC/TR 61158-1 2004
and control - Fieldbus for use in industrial EN 61158-x Series
control systems


IEC 61298 Series Process measurement and control devices - EN 61298 Series
General methods and procedures for
evaluating performance


6)
IEC 61326 2002 Electrical equipment for measurement, EN 61326/ 1997
+ corr. July 2002 control and laboratory use - EMC A3 2003
requirements


IEC 61499 Series Function blocks EN 61499 Series


7)
IEC 61804 Series Function blocks (FB) for process control - -


1)
CISPR 11 - Industrial scientific and medical (ISM) radio-- -
frequency equipment - Electromagnetic
disturbance characteristics - Limits and
methods of measurement




6)
IEC 61326:2002 is superseded by the IEC 61326-X series, which is harmonized as EN 61326-X.
7)
IEC 61804-2:2004 is harmonized as EN 61804-2:2004.

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INTERNATIONAL IEC


STANDARD 60770-3





First edition
2006-04


Transmitters for use in industrial-process
control systems –
Part 3:
Methods for performance evaluation
of intelligent transmitters

 IEC 2006  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XA
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 60770-3  IEC:2006(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope and object .7
2 Normative references.7
3 Terms and definitions .8
4 Design review .10
4.1 General .10
4.2 Transmitter analysis .10
4.3 Aspects to be reviewed.14
4.4 Documentary information .20
5 Performance testing.21
5.1 General .21
5.2 Instrument considerations.21
5.3 Measurement considerations .23
5.4 Test facilities .24
5.5 Transmitter under test (testing precautions) .25
5.6 Reference conditions for performance tests .26
5.7 Test procedures for tests under reference conditions .27
5.8 Test Procedures for determination of the effects of influence quantities.30
6 Other considerations.40
6.1 Safety.40
6.2 Degree of protection provided by enclosures.40
6.3 Electromagnetic emission .40
6.4 Variants.41
7 Evaluation report .41

Annex A informative Dependability testing .42
Annex B informative Throughput testing .49
Annex C informative Function block testing .53

Figure 1 – Intelligent transmitter model.11
Figure 2 – Basic test set-up.24
Figure 3 – Examples of step responses of electrical outputs of transmitters .29
Figure A.1 – Example schematic of a transmitter .43
Figure A.2 – Test tool for low impedance circuits and shared circuits .44
Figure A.3 – Matrix for reporting fault behaviour .46
Figure A.4 – Ranking of various types of failure modes.47
Figure B.1 – Transmitter in stand-alone configuration .49
Figure B.2 – Transmitter as a participant in a fieldbus installation .49

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60770-3  IEC:2006(E) – 3 –

Table 1 – Checklist for mapping functionality.14
Table 2 – Checklist for mapping configurability .15
Table 3 – Checklist for mapping hardware-configuration .16
Table 4 – Checklist for mapping adjustment and tuning procedures .16
Table 5 – Checklist for mapping operability.17
Table 6 – Checklist for mapping dependability .18
Table 7 – Checklist for mapping manufacturer’s support.19
Table 8 – Reporting format for design review.19
Table 9 – Checklist on available documentation.20
Table 10 – Listing of functions of single variable transmitter .22
Table 11 – Listing of functions of composite variable transmitter.23
Table 12 – Reference environmental and operational test conditions .26
Table 13 – procedures for tests under reference conditions .27
Table 14 – Methods for testing immunity to sensor disturbances.33
Table 15 – Methods for testing immunity to wiring disturbances .34
Table 16 – Methods for testing the immunity to disturbances of the power utilities.36
Table 17 – Methods for testing the immunity to environmental disturbances.38
Table 18 – Methods for testing the immunity to degradation in time.40

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– 4 – 60770-3  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –

Part 3: Methods for performance evaluation
of intelligent transmitters


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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 International Standard IEC 60770-3 has been prepared by subcommittee 65B, Devices, of
IEC technical committee 65: Industrial-process measurement and control.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/580/FDIS 65B/587/RVD

Full information on the voting for the approval of this standard 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.

---------------------- Page: 9 ----------------------

60770-3  IEC:2006(E) – 5 –
IEC 60770 consists of the following parts, under the general title Transmitters for use in
industrial-process control systems:
Part 1: Methods for performance evaluation
Part 2: Methods for inspection and routine testing
Part 3: Methods for performance evaluation of intelligent transmitters
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result 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
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

A bilingual version of this standard may be issued at a later date.

---------------------- Page: 10 ----------------------

– 6 – 60770-3  IEC:2006(E)
INTRODUCTION
New transmitters for use in industrial process control systems are now equipped with micro-
processors which utilise digital data processing and communication methods, auxiliary sensors
and artificial intelligence. This makes them more complex than conventional analogue
transmitters and gives them considerable added value.
An intelligent transmitter is an instrument that uses digital data processing and communication
methods for performing its functions and for safeguarding and communicating data and
information on its operation. It may be equipped with additional sensors and functionality which
support the main function of the intelligent transmitter. The variety of added functionality can
for instance enhance accuracy and rangeability, self-test capabilities, and alarm and condition
monitoring. Therefore accuracy-related performance testing, although still a major tool for
evaluation, is no longer sufficient to show the flexibility, capability and other features with
respect to engineering, installation, maintainability, reliability and operability.
Because of the complexity of intelligent transmitters, a close collaboration should be
maintained between the evaluating body and the manufacturer during the evaluation. Note
should be taken of the manufacturer's specifications for the instrument, when the test
programme is being decided, and the manufacturer should be invited to comment on both the
test programme and the results. His comments on the results should be included in any report
produced by the testing organisation.
This part of IEC 60770 addresses, in its main body, structured and mandatory methods for a
design review and performance testing of intelligent transmitters. Intelligent transmitters will, in
many cases, also have the capacity to be integrated into digital communication (bus) systems,
where they have to co-operate with a variety of devices. In this case, dependability,
(inter)operability and real-time behaviour are important issues. The testing of these aspects
depends largely on the internal structure and organisation of the intelligent transmitter and the
architecture and size of the bus system. The Annexes A, B and C give a non-mandatory
methodology and framework for designing specific evaluation procedures for dependability and
throughput testing and function block testing in a specific case.
When a full evaluation, in accordance with this part of IEC 60770, is not required or possible,
those tests which are required, should be performed and the results reported in accordance
with the relevant parts of this standard. In such cases, the test report should state that it does
not cover the full number of tests specified herein. Furthermore, the items omitted should be
mentioned, in order to give the reader of the report a clear overview.
The structure of this part of IEC 60770 largely follows the framework of IEC 62098. For
performance testing, the IEC 61298 series should also be consulted. A number of tests
described there are still valid for intelligent transmitters. Further reading of the IEC 61069
series is recommended, as some notions in this part of IEC 60770 are based on concepts
brought forward therein.

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60770-3  IEC:2006(E) – 7 –
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –

Part 3: Methods for performance evaluation
of intelligent transmitters


1 Scope and object
This part of IEC 60770 specifies the following methods.
• Methods for
– reviewing the functionality and the degree of intelligence in intelligent transmitters;
– testing the operational behaviour, as well as the static and dynamic performance of an
intelligent transmitter.
• Methodologies for
– determining the reliability and diagnostic features used to detect malfunctions;
– determining the communication capabilities of the intelligent transmitters in a
communication network.
The methods and methodologies are applicable to intelligent transmitters, which convert one or
more physical, chemical or electrical quantities into digital signals for use in a communication
network or into analogue electrical signals (as specified in the IEC 60381 series).
The methods and methodologies listed in this part of IEC 60770 are intended for use by:
– manufacturers to determine the performance of their products and
– users or independent testing laboratories to verify equipment performance specifications.
Manufacturers of intelligent transmitters are urged to apply this part of IEC 60770 at an early
stage of development.
This standard is intended to provide guidance for designing evaluations of intelligent
transmitters by providing:
– a checklist for reviewing the hardware and software design in a structured way;
– test methods for measuring and qualifying the performance, dependability and operability
under various environmental and operational conditions;
– methods for reporting the data obtained.
2 Normative references
The following referenced documents are indispensable for the application 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 60050-300, International Electrotechnical Vocabulary (IEV) – Electrical and electronic
measurements and measuring instruments – Part 311: General terms relating to measurements
– Part 312: General terms relating to electrical measurements – Part 313: Types of electrical
measuring instruments – Part 314: Specific terms according to the type of instrument
IEC 60068-2-1, Environmental testing – Part 2: Tests. Tests A: Cold
IEC 60068-2-2, Environmental testing – Part 2: Tests B: Dry heat

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– 8 – 60770-3  IEC:2006(E)
IEC 60068-2-6, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-31, Environmental testing. Part 2: Tests. Test Ec: Drop and topple, primarily for
equipment-type specimens
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC 60079 (all parts), Electrical apparatus for explosive gas atmospheres
IEC 60381(all parts), Analogue signals for process control systems
IEC 60529:1989, Degree of protection provided by enclosures (IP Code)
Amendment 1 (1999)
IEC 60654 (all parts), Operating conditions for industrial-process measurement and control
equipment
IEC 60721-3 (all parts), Classification of environmental conditions – Part 3: Classification of
groups of environmental parameters and their severities
IEC 60770-1:1999, Transmitters for use in industrial-process control systems – Part 1: Methods
for performance evaluation
IEC 61010-1:2001, Safety requirements for electrical equipment for measurement, control, and
laboratory use – Part 1: General requirements
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61158 (all parts), Digital data communications for measurement and control – Fieldbus for
use in industrial control systems
IEC 61298 (all parts), Process measurement and control devices – General methods and
procedures for evaluating performance
IEC 61326:2002, Electrical equipment for measurement, control and laboratory use – EMC
requirements
IEC 61499 (all parts), Function blocks
IEC 61804 (all parts), Function blocks (FB) for process control
CISPR 11, Industrial, scientific and medical (ISM) radio-frequency equipment – Electromagnetic
disturbance characteristics – Limits and methods of measurement
3 Terms and definitions
For the purposes of this part of IEC 60770, the definitions given in IEC 60770-1 and
IEC 60050-300 as well as the following, apply.
3.1
intelligent transmitter
transmitter provided with means for bi-directional communication with external systems and
human operators for sending measurement and status information and receiving and
processing external commands

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60770-3  IEC:2006(E) – 9 –
3.2
intelligent single variable transmitter
transmitter that measures one single physical quantity
3.3
intelligent multi variable transmitter
transmitter that measures two or more identical or different physical quantities
3.4
adjustment
set of operations carried out on a measuring instrument in order that it provides given
indications corresponding to given values of the measurand
NOTE 1 When the instrument is made to give a null indication corresponding to a null value of the measurand, the
set of operation is called zero adjustment.
NOTE 2 Many manufacturers use the term calibration for adjustment of zero, span and linearity or conformity.
3.5
user adjustment
adjustment, employing only the means at the disposal of the user, specified by the
manufacturer
3.6
calibration
set of operations which establishes by reference to standards the relationship which exists,
under specified conditions, between an indication and a result of a measurement
NOTE The relationship between the indications and the results of measurement can be expressed, in principle, by
a calibration diagram.
3.7
tuning
process of adjusting the various instrument parameters, required for obtaining a stable and
optimal measurement. This can range from "trial and error" to an automatic proprietary
procedure provided by the manufacturer
3.8
base load
...

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