IEC 61784-5-2:2010

Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2

IEC 61784-5-2:2010 specifies the installation profiles for CPF 2 (CIPTM1). The installation profiles are specified in the annexes. These annexes are read in conjunction with IEC 61918:2010. This second edition cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This edition includes the following technical changes with respect to the previous edition:
- updates pertaining to current installation practices;
- addition of new technology that has become recently available;
- errors have been corrected;
- improved alignment with IEC 61918. This bilingual version (2012-02) corresponds to the monolingual English version, published in 2010-07.
This publication is to be read in conjunction with IEC 61918:2010.

Réseaux de communication industriels - Profils - Partie 5-2: Installation des bus de terrain - Profils d'installation pour CPF 2

La CEI 61784-5-2:2010 définit les profils d'installation pour la CPF 2 (CIP). Les profils d'installation sont spécifiés dans les annexes. Ces annexes sont utilisées conjointement à la CEI 61918:2010. Cette deuxième édition annule et remplace la première édition publiée en 2007 dont elle constitue une révision technique. Elle inclut les modifications techniques suivantes par rapport à la précédente édition:
- mises à jour tenant compte des pratiques d'installation actuelles;
- ajout de nouvelles technologies devenues récemment disponibles;
- correction d'erreurs;
- meilleure adéquation avec la CEI 61918. La présente version bilingue (2012-02) correspond à la version anglaise monolingue publiée en 2010-07.
Cette publication doit être lue conjointement avec la CEI 61918:2010.

Električne naprave za uporabo v prisotnosti vnetljivega prahu - 2. del: Preskusne metode -3. oddelek: Metoda določanja najnižje energije vžiga zmesi prah/zrak.

General Information

• Status: Published
• Publication Date: 21-Jul-2010
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• ICS: 35.100.40 - Transport layer
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: JWG 10 - TC 65/SC 65C/JWG 10
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 09-Sep-2013
• Ref Project: SIST IEC 61241-2-3:1998 - Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 3: Method for determining minimum ignition energy of dust/air mixtures

Relations

• Revised: IEC 61784-5-2:2013 - Industrial communication networks - Profiles - Part 5-2: Installation of fieldbuses - Installation profiles for CPF 2
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61784-5-2
®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD

colour
inside

Industrial communication networks – Profiles –
Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2



IEC 61784-5-2:2010(E)

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IEC 61784-5-2
®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD


Industrial communication networks – Profiles –
Part 5 2: Installation of fieldbuses – Installation profiles for CPF 2

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XG
ICS 25.040.40; 35.100.40 ISBN 978-2-88912-053-6
® Registered trademark of the International Electrotechnical Commission

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– 2 – 61784-5-2 © IEC:2010(E)
CONTENTS
FOREWORD.7
INTRODUCTION.9
1 Scope.10
2 Normative references .10
3 Terms, definitions and abbreviated terms .10
4 CPF 2: Overview of installation profiles .10
5 Installation profile conventions .11
6 Conformance to installation profiles.12
Annex A (normative) CP 2/1 (ControlNet™) specific installation profile .13
Annex B (normative) CP 2/2 (EtherNet/IP™) specific installation profile.65
Annex C (normative) CP 2/3 (DeviceNet™) specific installation profile.92
Annex D (informative) Additional information .149
Bibliography.153

Figure 1 – Standards relationships.9
Figure A.1 – Interconnection of CPF 2 networks .14
Figure A.2 – Overview of CPF 2/1 networks.15
Figure A.3 – Drop cable requirements.17
Figure A.4 – Placement of BNC/TNC plugs .17
Figure A.5 – Placement of terminators .18
Figure A.6 – Extending a network using repeaters .18
Figure A.7 – Extending a network using active star topology.19
Figure A.8 – Links.19
Figure A.9 – Extending the network beyond 99 nodes.20
Figure A.10 – Maximum allowable taps per segment.27
Figure A.11 – Example of repeaters in star configuration .29
Figure A.12 – Repeaters in parallel.30
Figure A.13 – Repeaters in combination series and parallel .30
Figure A.14 – Ring repeater.31
Figure A.15 – Installing bulkheads .32
Figure A.16 – Coaxial BNC and TNC terminators .33
Figure A.17 – Terminator placement in a segment .33
Figure A.18 – Redundant network icons.36
Figure A.19 – Redundant coax media .36
Figure A.20 – Redundant fibre media.36
Figure A.21 – Repeaters in series versus length difference for coax media.37
Figure A.22 – Repeaters in series versus length difference for fibre media .38
Figure A.23 – Example of redundant coax network with repeaters.38
Figure A.24 – Example of improper redundant node connection.38
Figure A.25 – Example tool kit for installing BNC connectors .42
Figure A.26 – Calibration of coaxial stripper.43

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61784-5-2 © IEC:2010(E) – 3 –
Figure A.27 – Coax PVC strip length detail .43
Figure A.28 – Memory cartridge and blade.44
Figure A.29 – Cable position.44
Figure A.30 – Locking the cable.45
Figure A.31 – Stripping the cable.45
Figure A.32 – Install the crimp ferrule .46
Figure A.33 – Cable preparation for PVC type cables .46
Figure A.34 – Cable preparation for FEP type cables.46
Figure A.35 – Strip guides .47
Figure A.36 – Using the flare tool.47
Figure A.37 – Expanding the shields.48
Figure A.38 – Install the centre pin .48
Figure A.39 – Crimping the centre pin.48
Figure A.40 – Installing the connector body .49
Figure A.41 – Installing the ferrule .49
Figure A.42 – Crimp tool .49
Figure A.43 – Sealed IP67 cable.50
Figure A.44 – Terminator placement .51
Figure A.45 – Mounting the taps .52
Figure A.46 – Mounting the tap assembly using the universal mounting bracket .52
Figure A.47 – Mounting the tap using tie wraps or screws.53
Figure A.48 – Redundant network icons.53
Figure A.49 – Network test tool.56
Figure A.50 – Shorting the cable to test for continuity .56
Figure A.51 – Testing fibre segments.59
Figure A.52 – Multi-fibre backbone cable housing .60
Figure A.53 – Repeater adapter module.61
Figure A.54 – Short and medium distance fibre module LEDs .63
Figure A.55 – Long and extra long repeater module LEDs .63
Figure B.1 – Interconnection of CPF 2 networks .66
Figure B.2 – Peer to peer connections .68
Figure B.3 – Mated connections.70
Figure B.4 – The 8-way modular sealed jack & plug (plastic housing) .75
Figure B.5 – The 8-way modular sealed jack & plug (metal housing).75
Figure B.6 – M12-4 connectors .76
Figure B.7 – Simplex LC connector.76
Figure B.8 – Duplex LC connector .77
Figure B.9 – IP65/IP67 sealed duplex LC connector .77
Figure B.10 – M12-4 to 8-way modular bulkhead .79
Figure B.11 – The 8-way modular sealed jack & plug (plastic housing) .85
Figure B.12 – The 8-way modular sealed jack & plug (metal housing).85
Figure B.13 – M12-4 connectors .85
Figure B.14 – Earthing of cable shield .87

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– 4 – 61784-5-2 © IEC:2010(E)
Figure B.15 – Open shield example .87
Figure C.1 – Interconnection of CPF 2 networks .93
Figure C.2 – Connection to generic cabling.94
Figure C.3 – DeviceNet cable system uses a trunk/drop line topology.96
Figure C.4 – Measuring the trunk length .98
Figure C.5 – Measuring the trunk and drop length.98
Figure C.6 – Measuring drop cable in a network with multiports .99
Figure C.7 – Removable device using open-style connectors.99
Figure C.8 – Fixed connection using open-style connector.100
Figure C.9 – Open-style connector pin out .100
Figure C.10 – Open-style connector pin out 10 position .100
Figure C.11 – Power supply sizing example .104
Figure C.12 – Current limit for thick cable for one power supply. 105
Figure C.13 – Current for thick cable and two power supplies . 106
Figure C.14 – Worst case scenario .107
Figure C.15 – Example using the lookup method .107
Figure C.16 – One power supply end connected .109
Figure C.17 – Segmenting power in the power bus .110
Figure C.18 – Segmenting the power bus using power taps . 110
Figure C.19 – Thick cable construction .121
Figure C.20 – Mid cable construction .121
Figure C.21 – Thin cable construction.122
Figure C.22 – Flat cable construction.122
Figure C.23 – Cable preparation .123
Figure C.24 – Connector assembly .123
Figure C.25 – Micro connector pin assignment.123
Figure C.26 – Mini connector pin assignment.124
Figure C.27 – Preparation of cable end.124
Figure C.28 – Shrink wrap installation.125
Figure C.29 – Wire preparation .125
Figure C.30 – Open-style connector (female) .125
Figure C.31 – Open-style (male plug) .125
Figure C.32 – Flat cable.126
Figure C.33 – Aligning the cable .127
Figure C.34 – Closing the assembly.127
Figure C.35 – Proper orientation of cable.127
Figure C.36 – Locking the assembly .127
Figure C.37 – Driving the IDC contacts in to the cable .128
Figure C.38 – End cap placement .128
Figure C.39 – End cap seated.129
Figure C.40 – End cap installation alternate side of cable .129
Figure C.41 – Flat cable IDC connectors.130
Figure C.42 – Installing the connectors .130

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61784-5-2 © IEC:2010(E) – 5 –
Figure C.43 – Cable wiring to open-style terminals .131
Figure C.44 – Auxiliary power cable profile .131
Figure C.45 – Pin out auxiliary power connectors.132
Figure C.46– Power supply cable length versus wire size .133
Figure C.47 – Sealed terminator .135
Figure C.48 – Open-style terminator .135
Figure C.49 – Open-style IDC terminator .136
Figure C.50 – Sealed terminator IDC cable .136
Figure C.51 – Direct connection to the trunk .137
Figure C.52 – Wiring of open-style connector.137
Figure C.53 – Wiring of open-style 10-position connector . 137
Figure C.54 – Diagnostic temporary connections . 138
Figure C.55 – Thick cable preterminated cables (cord sets) . 139
Figure C.56 – Thin cable preterminated cables (cord sets). 139

Table A.1 – Basic network characteristics for copper cabling not based on Ethernet
(ISO/IEC 8802-3) .20
Table A.2 – Allowable fibre lengths .21
Table A.3 – Power budgets for ControlNet fibre networks .21
Table A.4 – RG6 coaxial electrical properties.22
Table A.5 – RG6 coaxial physical parameters .23
Table A.6 – Cable type selection.23
Table A.7 – Information relevant to optical fibre cables .24
Table A.8 – Copper connectors for ControlNet .25
Table A.9 – Fibre connectors for fieldbus systems .26
Table A.10 – Relationship between FOC and fibre types (CP 2/1).26
Table A.11 – Separation from other circuits inside enclosures .35
Table A.12 – Parameters for Coaxial RG6 Cables.40
Table A.13 – Bend radius for coaxial cables outside conduit .40
Table A.14 – Parameters for silica optical fibre cables .41
Table A.15 – Parameters for hard clad silica optical fibre.41
Table A.16 – Test matrix for BNC/TNC connectors.56
Table A.17 – Wave length and fibre types .59
Table A.18 – LED status table.61
Table A.19 – Repeater adapter and module diagnostic .61
Table A.20 – Repeater adapter indicator diagnostic .62
Table A.21 – Repeater module indicator .62
Table A.22 – Short and medium distance troubleshooting chart .63
Table A.23 – Long and extra long troubleshooting chart.64
Table B.1 – Network characteristics for balanced cabling based on Ethernet .68
Table B.2 – Network characteristics for optical fibre cabling.69
Table B.3 – Fibre lengths for 1 mm POF A4a.2 POF 0.5 NA .69
Table B.4 – Fibre lengths for 1 mm POF A4d POF 0.3 NA .70
Table B.5 – Information relevant to copper cable: fixed cables.71

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– 6 – 61784-5-2 © IEC:2010(E)
Table B.6 – Information relevant to copper cable: cords.71
Table B.7 – TCL limits for unshielded twisted-pair cabling .72
Table B.8 – ELTCTL limits for unshielded twisted-pair cabling .72
Table B.9 – Coupling attenuation limits for screened twisted-pair cabling.72
Table B.10 – Information relevant to optical fibre cables .73
Table B.11 – Connectors for balanced cabling CPs based on Ethernet .74
Table B.12 – Industrial EtherNet/IP 8-way modular connector parameters .74
Table B.13 – Industrial EtherNet/IP M12-4 D-coding connector parameters .75
Table B.14 – Optical fibre connecting hardware .76
Table B.15 – Relationship between FOC and fibre types (CP2/2).77
Table B.16 – Connector insertion loss.77
Table B.17 – Parameters for balanced cables .84
Table B.18 – Parameters for silica optical fibre cables .84
Table B.19 – Parameters for POF optical fibre cables .84
Table C.1 – Basic network characteristics for copper cabling not based on Ethernet
(ISO/IEC-8802-3).96
Table C.2 – Cable trunk and drop lengths for CP 2/3 .97
Table C.3 – Summary of available current for trunk cables (CP 2/3). 101
Table C.4 – Permissible current for thin cable drop lines of various lengths . 101
Table C.5 – Power supply specification for DeviceNet. 102
Table C.6 – Power supply tolerance stack up for DeviceNet.102
Table C.7 – Current versus cable length for one power supply thick cable . 105
Table C.8 – Current versus length for two power supplies.106
Table C.9 – Definition of equation variables .108
Table C.10 – Information relevant to copper cable: fixed cables.111
Table C.11 – Information relevant to copper cable: cords.111
Table C.12 – DeviceNet cables and connector support cross reference . 111
Table C.13 – DeviceNet cable profiles .112
Table C.14 – Copper connectors for non-Ethernet based fieldbus . 115
Table C.15 – Additional connectors for CP 2/3 (DeviceNet) . 115
Table C.16 – Parameters for balanced cables.120
Table C.17 – Wire colour code and function.126
Table C.18 – Auxiliary power cable colour code . 131
Table C.19 – Network power supply requirements.132
Table C.20 – Auxillary power supply requirements .133
Table C.21 – Signal wire verification .142
Table C.22 – Shield to earth .142
Table C.23 – Connector pin out .144

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61784-5-2 © IEC:2010(E) – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –

Part 5-2: Installation of fieldbuses –
Installation profiles for CPF 2


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 Pu
...

SLOVENSKI STANDARD
SIST IEC 61241-2-3:1998
01-april-1998
(OHNWULþQHQDSUDYH]DXSRUDERYSULVRWQRVWLYQHWOMLYHJDSUDKXGHO3UHVNXVQH
PHWRGHRGGHOHN0HWRGDGRORþDQMDQDMQLåMHHQHUJLMHYåLJD]PHVLSUDK]UDN
Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods -
Section 3: Method for determining minimum ignition energy of dust/air mixtures
Matériels électriques destinés à être utilisés en présence de poussières combustibles -
Partie 2: Méthodes d'essai - Section 3: Méthode de détermination de l'énergie minimale
d'inflammation des mélanges air/poussières
Ta slovenski standard je istoveten z: IEC 61241-2-3
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
SIST IEC 61241-2-3:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST IEC 61241-2-3:1998

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SIST IEC 61241-2-3:1998
CEI
NORME
INTERNATIONALE IEC
1241-2-3
INTERNATIONAL
Première édition
STANDARD
First edition
1994-09
Matériels électriques destinés à être utilisés
combustibles -
présence de poussières
en
Partie 2:
Méthodes d'essai -
3:
Section
détermination de l'énergie minimale
Méthode de
/poussières
d'inflammation des mélanges air
Electrical apparatus for use in the presence of
combustible dust -
Part 2:
Test methods -
3: Method for determining minimum
Section
ignition energy of dust/air mixtures
Copyright — all rights reserved
© CEI 1994 Droits de reproduction réservés —
No part of this publication may be reproduced or utilized in
Aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission
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in writing from the publisher.
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Pour prix, voir catalogue en vigueur •
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SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 – 3 –
CONTENTS
Page
5
FOREWORD
Clause
1 Scope 7
2 Normative references 7
3 Definitions 9
4 Test apparatus 9
4.1 Spark generation circuit 9
11
4.2 Test vessel
11
5 Test sample
11
6 Procedure
11
6.1 Brief description
15 6.2 Calibration
15
6.3 Test repo rt
Annexes
17 A Examples of spark-generating systems
33 B Significance of minimum ignition energy
C Bibliography 38

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SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF
COMBUSTIBLE DUST -
Part 2: Test methods -
Section 3: Method for determining minimum
ignition energy of dust/air mixtures
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (lEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
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. The 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 the IEC on technical matters, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
3) They have the form of recommendations for international use published in the form of standards, technical
reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply lEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
International Standard IEC 1241-2-3 has been prepared by sub-committee 31H: Apparatus
for use in the presence of combustible dust, of IEC technical committee 31: Electrical
apparatus for explosive atmospheres.
The text of this standard is based on the following documents:
DIS Report on voting
31 H(CO)19
31H(CO)17
Full information on the voting for the approval of this standard can be found in the report
on voting indicated in the above table.
IEC 1241 consists of the following parts, under the general title: Electrical apparatus for
use in the presence of combustible dust:
- Part 1: Electrical apparatus protected by enclosures
- Part 2: Test methods
Annexes A, B and C are for information only.

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SIST IEC 61241-2-3:1998
1241-2-3
IEC:1994 - 7 -
ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF
COMBUSTIBLE DUST -
Part 2: Test methods -
Section 3: Method for determining minimum
ignition energy of dust/air mixtures
1 Scope
This section of IEC 1241-2 specifies a method of test to determine the minimum ignition
energy of a dust/air mixture by an electrically generated high-voltage d.c. spark. This test
method is intended to develop data to be used in deciding whether or not combustible
dust/air mixtures are considered to be ignitable with respect to electrical discharge. It is
intended that the dust be tested in a form (particle size, moisture content, etc.) represent-
ing conditions of actual use so that assessment of the hazard present can be made.
Ignition energies determined by this method would be compared with ignition energies of
other dusts to assess the relative hazard with regard to ignition by an electrical or electro-
static discharge, thereby permitting decisions to be made on the suitability of electrical
apparatus for installation in areas where combustible dust is present.
The test method is not suitable for use with recognized explosives, gunpowder, dynamite,
explosives which do not require oxygen for combustion; pyrophoric substances, or
substances or mixtures of substances which may under some circumstances behave in a
similar manner. Where any doubt exists about the existence of a hazard due to explosive
properties, an indication may be obtained by placing a very small quantity of the dust in
question on the heated surface of the apparatus described in section 1 of the IEC 1241-2-1,
heated to 400 °C.
NOTE – Precautions should be taken to safeguard the health of personnel conducting the tests against
the risk of fire, explosion and/or the effects, including toxic effects, of combustion. Compliance with this inter-
national standard does not itself confer immunity from legal obligations.
Annex B of this section includes guidance on the significance of minimum ignition energy
with respect to electrostatic discharges.
2 Normative references
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this section of IEC 1241-2. At the time of publication,
the editions indicated were valid. All normative documents are subject to revision, and pa rties
to agreements based on this section of IEC 1241-2 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated
below. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 50(301, 302, 303): 1983, International Electrotechnical Vocabulary
- Chapter 301: General terms on measurements in electricity
- Chapter 302: Electrical measuring instruments
- Chapter 303: Electronic measuring instruments
ISO 4225: 1980, Air Quality - General aspects - Vocabulary

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SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 - 9 -
3 Definitions
For the purposes of this section of IEC 1241-2, the definitions in IEC 50(301, 302, 303)
and also the following apply.
3.1 dust: Small solid particles that settle out under their own weight but that may remain
suspended in air for some time.
NOTE - This definition includes what are defined in ISO 4225 as "dust" and "grit".
Dust that is ignitable in mixtures with air.
3.2 combustible dust:
NOTES
ain concentration limits.
1 Mixtures of combustible dust in air are ignitable only between cert
2 Combustible dusts are capable of being ignited by external ignition sources and will continue to burn at
atmospheric temperatures but they will only spontaneously ignite above their minimum ignition temperatures.
3.3 spark discharge: Transient electric discharge which takes place between two
conductors which are at different potentials. A spark is a discrete discharge that bridges
the gap between the conductors in the form of a single ionization channel.
3.4 minimum ignition energy (of a combustible dust/air mixture): Lowest energy of
spark (as measured by the procedure in this standard) that is capable of igniting the most
sensitive dust/air mixture with sustained combustion.
3.5 ignition: In the test, ignition is considered to have occurred when:
- a pressure rise of at least 0,2 bar above any pressure introduced by the igniting
spark is measured in a closed vessel (e.g. 20 I sphere); or
- a flame which propagates at least 6 cm away from the spark position is observed in
an open tube (e.g. Hartmann tube).
Time between dispersion of the dust and the occurrence of the
3.6 ignition delay time:
spark discharge.
4 Test apparatus
4.1 Spark generation circuit
Annex A describes some suitable forms of circuit, all of which shall have the following
characteristics. What follows deals only with the circuit:
- inductance of discharge circuit: 1 mH to 2 mH except when the data is to be used
for the assessment of electrostatic hazards when the inductance of the discharge
circuit shall not exceed 25 µH;
- ohmic resistance of discharge circuit: as low as possible and not more than 5 S2;
electrode material: stainless steel, brass, copper or tungsten;
-
- electrode diameter and shape: 2,0 mm ± 0,5 mm. Electrodes with rounded tips can
be used to reduce corona effects that can occur with pointed electrodes, and which
may give incorrect values of spark energy. If pointed electrodes are used, corona
effects should be carefully considered;

---------------------- Page: 7 ----------------------

SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 -11 -
- electrode gap: 6 mm (minimum);
- capacitors: low-inductance type, resistant to surge current;
- capacitance of electrode arrangement: as low as possible;
prevent leakage
- insulation resistance between electrodes: sufficiently high to
currents.
S2 is required for a minimum
NOTE — Typically, a minimum resistance between the electrodes of 10 12
ignition energy of 1 mJ, and 10 10 S2 for a minimum ignition energy of 100 mJ.
4.2 Test vessel
rtmann tube. These
The recommended vessels are the 20 I sphere apparatus and the Ha
vessels are described in references [6] and [7]*. Other vessels can be used, provided that
the calibration requirements in 6.2 are met.
5 Test sample
Tests shall be performed on samples in a state of preparation corresponding to that found
in practice under plant conditions.
Minimum ignition energy decreases with decreasing particle size. Tests shall be carried
out on samples having particle sizes that are consistent with, or finer than, the finest
material that can be present in the intended use.
For comparative tests the samples shall be prepared by a constant method with the object
of fixing particle size distribution and moisture content.
NOTE — Where the particle sizes of the material are not known, tests should be carried out on particle sizes
less than 63 µm.
Minimum ignition energy decreases with decreasing particle size. It should be checked
that the particle sizes of the sample are representative of the finest material that can
be present in the plant. Tests should be carried out on material of particle size less
than 63 pm.
6 Procedure
6.1 Brief description
The combustible dust to be tested is uniformly dispersed in air at atmospheric pressure
and temperature in a suitable apparatus, and the dust/air mixture is subjected to a spark
discharge from a charged capacitor.
The energy value of the discharge is calculated from the formula:
W = 0,5 C x Uz
where
Wis the stored energy in joules (J);
C is the total discharge capacitance, in farads (F);
U is the voltage of the charged capacitor in volts (V).
Figures in square brackets refer to the bibliography, annex C.

---------------------- Page: 8 ----------------------

SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 -13 -
NOTES
1 At spark energies above 100 mJ, the spark resistance can become so small that the circuit resistance is
no longer negligible compared with the spark resistance, particularly when the circuit contains an inductance
coil of the order of 1 mH. In such cases the net spark energy can be obtained from the equation:
w= f 1(t) U(t)dt
where
is the spark current, and
1(t)
U(t) the spark voltage; both of which are obtained by measurement.
2 Further information relative to the calculation of spark energies is contained in annex A.
It is necessary to take account of the following possible influences on the test:
dust/air mixture aerodynamics (e.g. ignition delay time, dispersing pressure);
-
- dust concentration;
- voltage to which the capacitor is charged;
- capacitance of the capacitor;
- inductance of the discharge circuit;
ohmic resistance of the discharge circuit;
-
materials and dimensions of the electrodes and the gap between the electrodes.
-
To limit the expense of testing, every apparatus uses electrodes composed of a specific
material with standardized dimensions and minimum electrode gap. The ohmic resistance
of the discharge circuit shall be kept as low as possible (see clause 4).
Starting with a spark energy that will reliably cause ignition of the dust being tested, the
dust concentration and dust dispersion parameters (e.g. ignition delay time and dispersion
pressure) are adjusted to establish the most ignitable dust cloud. Using the optimal
conditions for ignition, the spark energy is successively halved, by adjusting the capa-
citance of the capacitor and/or the voltage to which it is charged, until no ignition occurs
in 20 successive tests.
NOTE - When tests are carried out using the 20 I sphere apparatus, the ignition delay time should be 120 ms.
, at which ignition
lies between the highest energy, W 1
The minimum ignition energy,
Wmin,
fails to occur in 20 successive attempts to ignite the dust/air mixture, and the lowest
at which ignition occurs within 20 successive attempts.
energy, W2,
1
W < Wmin < W2

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

SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 - 15 -
6.2 Calibration
Calibration tests should be carried out on three reference dusts which shall have been
dried under atmospheric pressure at 50 °C for 24 h prior to the measurements.
The results shall be within the following ranges:
Wmin = 5 to 15 mJ, mean particle diameter 31 µm;
lycopodium:
anthraquinone: Wmin = 2 to 6 mJ, mean particle diameter 18 µm;
min = 2 to 6 mJ, mean particle diameter 27 µm.
polyacrylonitrile:
W
The dust dispersion parameters, including ignition delay time, for each sample shall be
noted.
6.3 Test report
rt shall
Where the test has been carried out in accordance with this standard, the test repo
provide the information listed in 6.3.1, 6.3.2 and 6.3.3. Although the dust concentration
values associated with the limits of the range of minimum ignition energy should be
recorded by the test laboratory, the values, expressed in terms of the amount of dust which
is weighed, divided by the volume of the explosion vessel, are not usually included in the
test report.
6.3.1 Product characteristics
sample designation (name and chemical description if not implicit in the name);
-
sample origin or source;
- sample pre-treatment;
characteristics data for particle size distribution and moisture content if available
-
and not already given by pre-treatment procedures.
Characteristics of the test apparatus
6.3.2
- triggering;
explosion vessel;
-
- dust-dispersion system;
total inductance of the discharge circuit;
-
charging voltage, electrode material and length of gap of the optimized discharge
-
circuit.
6.3.3 Results
- highest energy W1 at which ignition does not occur;
at which ignition is obtained.
- lowest energy W2
rt form
6.3.4 Repo
An example of a suitable form is given in figure A.1.

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

SIST IEC 61241-2-3:1998
1241-2-3 IEC:1994 – 17 –
Annex A
(informative)
Examples of spark-generating systems
A.1 General
Clauses A.2, A.3, A.4 and A.5 contain descriptions of four designs of spark-generating
circuit suitable for use in this test. With any of these examples it is possible to use different
explosion vessels, provided that the dust dispersion is optimized and that suitable pre-
cautions are taken in order to prevent side-effects occurring in comparatively large vessels
from electrostatic charging phenomena during the dispersion of the dust. These phenomena
include additional chargi
...

IEC 61784-5-2
®

Edition 2.0 2010-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Industrial communication networks – Profiles –
Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2

Réseaux de communication industriels – Profils –
Partie 5-2: Installation des bus de terrain – Profils d'installation pour CPF 2

IEC 61784-5-2:2010

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61784-5-2

®

Edition 2.0 2010-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Industrial communication networks – Profiles –

Part 5-2: Installation of fieldbuses – Installation profiles for CPF 2




Réseaux de communication industriels – Profils –

Partie 5-2: Installation des bus de terrain – Profils d'installation pour CPF 2
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

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CODE PRIX


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---------------------- Page: 3 ----------------------
– 2 – 61784-5-2  IEC:2010
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 10
4 CPF 2: Overview of installation profiles . 10
5 Installation profile conventions . 11
6 Conformance to installation profiles . 12
Annex A (normative) CP 2/1 (ControlNet™) specific installation profile . 13
Annex B (normative) CP 2/2 (EtherNet/IP™) specific installation profile . 65
Annex C (normative) CP 2/3 (DeviceNet™) specific installation profile . 92
Annex D (informative) Additional information . 149
Bibliography . 153

Figure 1 – Standards relationships . 9
Figure A.1 – Interconnection of CPF 2 networks . 14
Figure A.2 – Overview of CPF 2/1 networks . 15
Figure A.3 – Drop cable requirements . 17
Figure A.4 – Placement of BNC/TNC plugs . 17
Figure A.5 – Placement of terminators . 18
Figure A.6 – Extending a network using repeaters . 18
Figure A.7 – Extending a network using active star topology . 19
Figure A.8 – Links . 19
Figure A.9 – Extending the network beyond 99 nodes . 20
Figure A.10 – Maximum allowable taps per segment . 27
Figure A.11 – Example of repeaters in star configuration . 29
Figure A.12 – Repeaters in parallel . 30
Figure A.13 – Repeaters in combination series and parallel . 30
Figure A.14 – Ring repeater . 31
Figure A.15 – Installing bulkheads . 32
Figure A.16 – Coaxial BNC and TNC terminators . 33
Figure A.17 – Terminator placement in a segment . 33
Figure A.18 – Redundant network icons . 36
Figure A.19 – Redundant coax media . 36
Figure A.20 – Redundant fibre media . 36
Figure A.21 – Repeaters in series versus length difference for coax media . 37
Figure A.22 – Repeaters in series versus length difference for fibre media . 38
Figure A.23 – Example of redundant coax network with repeaters . 38
Figure A.24 – Example of improper redundant node connection . 38
Figure A.25 – Example tool kit for installing BNC connectors . 42
Figure A.26 – Calibration of coaxial stripper . 43

---------------------- Page: 4 ----------------------
61784-5-2  IEC:2010 – 3 –
Figure A.27 – Coax PVC strip length detail . 43
Figure A.28 – Memory cartridge and blade . 44
Figure A.29 – Cable position . 44
Figure A.30 – Locking the cable . 45
Figure A.31 – Stripping the cable . 45
Figure A.32 – Install the crimp ferrule . 46
Figure A.33 – Cable preparation for PVC type cables . 46
Figure A.34 – Cable preparation for FEP type cables . 46
Figure A.35 – Strip guides . 47
Figure A.36 – Using the flare tool . 47
Figure A.37 – Expanding the shields . 48
Figure A.38 – Install the centre pin . 48
Figure A.39 – Crimping the centre pin . 48
Figure A.40 – Installing the connector body . 49
Figure A.41 – Installing the ferrule . 49
Figure A.42 – Crimp tool . 49
Figure A.43 – Sealed IP67 cable . 50
Figure A.44 – Terminator placement . 51
Figure A.45 – Mounting the taps . 52
Figure A.46 – Mounting the tap assembly using the universal mounting bracket . 52
Figure A.47 – Mounting the tap using tie wraps or screws . 53
Figure A.48 – Redundant network icons . 53
Figure A.49 – Network test tool . 56
Figure A.50 – Shorting the cable to test for continuity . 56
Figure A.51 – Testing fibre segments . 59
Figure A.52 – Multi-fibre backbone cable housing . 60
Figure A.53 – Repeater adapter module . 61
Figure A.54 – Short and medium distance fibre module LEDs . 63
Figure A.55 – Long and extra long repeater module LEDs . 63
Figure B.1 – Interconnection of CPF 2 networks . 66
Figure B.2 – Peer to peer connections . 68
Figure B.3 – Mated connections . 70
Figure B.4 – The 8-way modular sealed jack & plug (plastic housing) . 75
Figure B.5 – The 8-way modular sealed jack & plug (metal housing) . 75
Figure B.6 – M12-4 connectors . 76
Figure B.7 – Simplex LC connector . 76
Figure B.8 – Duplex LC connector . 77
Figure B.9 – IP65/IP67 sealed duplex LC connector . 77
Figure B.10 – M12-4 to 8-way modular bulkhead . 79
Figure B.11 – The 8-way modular sealed jack & plug (plastic housing) . 85
Figure B.12 – The 8-way modular sealed jack & plug (metal housing) . 85
Figure B.13 – M12-4 connectors . 85
Figure B.14 – Earthing of cable shield . 87

---------------------- Page: 5 ----------------------
– 4 – 61784-5-2  IEC:2010
Figure B.15 – Open shield example . 87
Figure C.1 – Interconnection of CPF 2 networks . 93
Figure C.2 – Connection to generic cabling . 94
Figure C.3 – DeviceNet cable system uses a trunk/drop line topology . 96
Figure C.4 – Measuring the trunk length . 98
Figure C.5 – Measuring the trunk and drop length . 98
Figure C.6 – Measuring drop cable in a network with multiports . 99
Figure C.7 – Removable device using open-style connectors . 99
Figure C.8 – Fixed connection using open-style connector . 100
Figure C.9 – Open-style connector pin out . 100
Figure C.10 – Open-style connector pin out 10 position . 100
Figure C.11 – Power supply sizing example . 104
Figure C.12 – Current limit for thick cable for one power supply . 105
Figure C.13 – Current for thick cable and two power supplies . 106
Figure C.14 – Worst case scenario . 107
Figure C.15 – Example using the lookup method . 107
Figure C.16 – One power supply end connected . 109
Figure C.17 – Segmenting power in the power bus . 110
Figure C.18 – Segmenting the power bus using power taps . 110
Figure C.19 – Thick cable construction . 121
Figure C.20 – Mid cable construction . 121
Figure C.21 – Thin cable construction . 122
Figure C.22 – Flat cable construction . 122
Figure C.23 – Cable preparation . 123
Figure C.24 – Connector assembly . 123
Figure C.25 – Micro connector pin assignment . 123
Figure C.26 – Mini connector pin assignment . 124
Figure C.27 – Preparation of cable end . 124
Figure C.28 – Shrink wrap installation . 125
Figure C.29 – Wire preparation . 125
Figure C.30 – Open-style connector (female) . 125
Figure C.31 – Open-style (male plug) . 125
Figure C.32 – Flat cable. 126
Figure C.33 – Aligning the cable . 127
Figure C.34 – Closing the assembly . 127
Figure C.35 – Proper orientation of cable . 127
Figure C.36 – Locking the assembly . 127
Figure C.37 – Driving the IDC contacts in to the cable . 128
Figure C.38 – End cap placement . 128
Figure C.39 – End cap seated . 129
Figure C.40 – End cap installation alternate side of cable . 129
Figure C.41 – Flat cable IDC connectors . 130
Figure C.42 – Installing the connectors . 130

---------------------- Page: 6 ----------------------
61784-5-2  IEC:2010 – 5 –
Figure C.43 – Cable wiring to open-style terminals . 131
Figure C.44 – Auxiliary power cable profile . 131
Figure C.45 – Pin out auxiliary power connectors. 132
Figure C.46 – Power supply cable length versus wire size . 133
Figure C.47 – Sealed terminator . 135
Figure C.48 – Open-style terminator . 135
Figure C.49 – Open-style IDC terminator . 136
Figure C.50 – Sealed terminator IDC cable . 136
Figure C.51 – Direct connection to the trunk . 137
Figure C.52 – Wiring of open-style connector. 137
Figure C.53 – Wiring of open-style 10-position connector . 137
Figure C.54 – Diagnostic temporary connections . 138
Figure C.55 – Thick cable preterminated cables (cord sets) . 139
Figure C.56 – Thin cable preterminated cables (cord sets). 139

Table A.1 – Basic network characteristics for copper cabling not based on Ethernet
(ISO/IEC 8802-3) . 20
Table A.2 – Allowable fibre lengths . 21
Table A.3 – Power budgets for ControlNet fibre networks . 21
Table A.4 – RG6 coaxial electrical properties . 22
Table A.5 – RG6 coaxial physical parameters . 23
Table A.6 – Cable type selection. 23
Table A.7 – Information relevant to optical fibre cables . 24
Table A.8 – Copper connectors for ControlNet . 25
Table A.9 – Fibre connectors for fieldbus systems . 26
Table A.10 – Relationship between FOC and fibre types (CP 2/1) . 26
Table A.11 – Separation from other circuits inside enclosures . 35
Table A.12 – Parameters for Coaxial RG6 Cables . 40
Table A.13 – Bend radius for coaxial cables outside conduit . 40
Table A.14 – Parameters for silica optical fibre cables . 41
Table A.15 – Parameters for hard clad silica optical fibre . 41
Table A.16 – Test matrix for BNC/TNC connectors. 56
Table A.17 – Wave length and fibre types . 59
Table A.18 – LED status table. 61
Table A.19 – Repeater adapter and module diagnostic . 61
Table A.20 – Repeater adapter indicator diagnostic . 62
Table A.21 – Repeater module indicator . 62
Table A.22 – Short and medium distance troubleshooting chart . 63
Table A.23 – Long and extra long troubleshooting chart . 64
Table B.1 – Network characteristics for balanced cabling based on Ethernet . 68
Table B.2 – Network characteristics for optical fibre cabling . 69
Table B.3 – Fibre lengths for 1 mm POF A4a.2 POF 0.5 NA . 69
Table B.4 – Fibre lengths for 1 mm POF A4d POF 0.3 NA . 70
Table B.5 – Information relevant to copper cable: fixed cables . 71

---------------------- Page: 7 ----------------------
– 6 – 61784-5-2  IEC:2010
Table B.6 – Information relevant to copper cable: cords . 71
Table B.7 – TCL limits for unshielded twisted-pair cabling . 72
Table B.8 – ELTCTL limits for unshielded twisted-pair cabling . 72
Table B.9 – Coupling attenuation limits for screened twisted-pair cabling. 72
Table B.10 – Information relevant to optical fibre cables . 73
Table B.11 – Connectors for balanced cabling CPs based on Ethernet . 74
Table B.12 – Industrial EtherNet/IP 8-way modular connector parameters . 74
Table B.13 – Industrial EtherNet/IP M12-4 D-coding connector parameters . 75
Table B.14 – Optical fibre connecting hardware . 76
Table B.15 – Relationship between FOC and fibre types (CP2/2) . 77
Table B.16 – Connector insertion loss . 77
Table B.17 – Parameters for balanced cables . 84
Table B.18 – Parameters for silica optical fibre cables . 84
Table B.19 – Parameters for POF optical fibre cables . 84
Table C.1 – Basic network characteristics for copper cabling not based on Ethernet
(ISO/IEC-8802-3) . 96
Table C.2 – Cable trunk and drop lengths for CP 2/3 . 97
Table C.3 – Summary of available current for trunk cables (CP 2/3) . 101
Table C.4 – Permissible current for thin cable drop lines of various lengths . 101
Table C.5 – Power supply specification for DeviceNet . 102
Table C.6 – Power supply tolerance stack up for DeviceNet . 102
Table C.7 – Current versus cable length for one power supply thick cable . 105
Table C.8 – Current versus length for two power supplies . 106
Table C.9 – Definition of equation variables . 108
Table C.10 – Information relevant to copper cable: fixed cables . 111
Table C.11 – Information relevant to copper cable: cords . 111
Table C.12 – DeviceNet cables and connector support cross reference . 111
Table C.13 – DeviceNet cable profiles . 112
Table C.14 – Copper connectors for non-Ethernet based fieldbus . 115
Table C.15 – Additional connectors for CP 2/3 (DeviceNet) . 115
Table C.16 – Parameters for balanced cables .
...