SIST EN 61784-5-6:2012
(Main)Industrial communication networks - Profiles - Part 5-6: Installation of fieldbuses - Installation profiles for CPF 6 (IEC 61784-5-6:2010)
Industrial communication networks - Profiles - Part 5-6: Installation of fieldbuses - Installation profiles for CPF 6 (IEC 61784-5-6:2010)
Vote launched on 65C/602/FDIS split into 9 subparts to be published separately at IEC and CLC levels * Supersedes EN 61784-5-6:2008
Industrielle Kommunikationsnetze - Profile - Teil 5-6: Feldbusinstallation - Installationsprofile für die Kommunikationsprofilfamilie 6 (IEC 61784-5-6:2010)
Réseaux de communication industriels - Profils - Partie 5-6: Installation des bus de terrain - Profils d'installation pour CPF 6 (CEI 61784-5-6:2010)
Industrijska komunikacijska omrežja - Profili - 5-6. del: Inštalacija procesnih vodil - Inštalacijski profili za CPF 6 (IEC 61784-5-6:2010)
Ta del standarda IEC 61784 določa inštalacijske profile za CPF 6 (INTERBUS) 1. Inštalacijski profili so navedeni v dodatkih. Ti dodatki se navezujejo na standard IEC 61918:2010.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrijska komunikacijska omrežja - Profili - 5-6. del: Inštalacija procesnih vodil - Inštalacijski profili za CPF 6
(IEC 61784-5-6:2010)Industrielle Kommunikationsnetze - Profile - Teil 5-6: Feldbusinstallation - Installationsprofile für die Kommunikationsprofilfamilie 6
(IEC 61784-5-6:2010)Réseaux de communication industriels - Profils - Partie 5-6: Installation des bus de terrain - Profils d'installation pour CPF 6 (CEI 61784-5-6:2010)Industrial communication networks - Profiles - Part 5-6: Installation of fieldbuses - Installation profiles for CPF 6 (IEC 61784-5-6:2010)35.100.05UHãLWYHMultilayer applications25.040.40Merjenje in krmiljenje industrijskih postopkovIndustrial process measurement and controlICS:Ta slovenski standard je istoveten z:EN 61784-5-6:2012SIST EN 61784-5-6:2012en01-junij-2012SIST EN 61784-5-6:2012SLOVENSKI
STANDARDSIST EN 61784-5-6:20081DGRPHãþD
SIST EN 61784-5-6:2012
EUROPEAN STANDARD EN 61784-5-6 NORME EUROPÉENNE
EUROPÄISCHE NORM April 2012
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61784-5-6:2012 E
ICS 25.040.40; 35.100.40 Supersedes EN 61784-5-6:2008
English version
Industrial communication networks -
Profiles -
Part 5-6: Installation of fieldbuses -
Installation profiles for CPF 6 (IEC 61784-5-6:2010)
Réseaux de communication industriels -
Profils -
Partie 5-6: Installation des bus de terrain - Profils d'installation pour CPF 6 (CEI 61784-5-6:2010)
Industrielle Kommunikationsnetze -
Profile -
Teil 5-6: Feldbusinstallation -
Installationsprofile für die Kommunikationsprofilfamilie 6 (IEC 61784-5-6:2010)
This European Standard was approved by CENELEC on 2011-10-19. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, 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, Turkey and the United Kingdom.
SIST EN 61784-5-6:2012
EN 61784-5-6:2012 - 2 -
Foreword The text of document 65C/602/FDIS, future edition 2 of IEC 61784-5-6, prepared by SC 65C, "Industrial networks", of IEC/TC 65, "Industrial-process measurement, control and automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61784-5-6:2012.
The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-10-20 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2014-10-19
EN 61784-5-6:2012 includes the following technical changes with respect to EN 61784-5-6:2008: a) alignment to IEC 61918:2010; b) addition of the M12-FO connector. This standard is to be used in conjunction with IEC 61918, second edition (2010-07), together with the European Common Modification published with EN 61918:2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.
Endorsement notice The text of the International Standard IEC 61784-5-6:2010 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61158 series NOTE
Harmonized as EN 61158 series. IEC/TR 61158-1 NOTE
Harmonized as CLC/TR 61158-1. SIST EN 61784-5-6:2012
- 3 - EN 61784-5-6:2012 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
IEC 60189-1 2007 Low-frequency cables and wires with PVC insulation and PVC sheath -
Part 1: General test and measuring methods - -
IEC 60794-1-2 2003 Optical fibre cables -
Part 1-2: Generic specification - Basic optical cable test procedures EN 60794-1-2 2003
IEC 61156-1 2007 Multicore and symmetrical pair/quad cables for digital communications -
Part 1: Generic specification - -
IEC 61156-5 - Multicore and symmetrical pair/quad cables for digital communications -
Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz -Horizontal floor wiring - Sectional specification- -
IEC 61918
2010 Industrial communication networks - Installation of communication networks in industrial premises - -
SIST EN 61784-5-6:2012
SIST EN 61784-5-6:2012
IEC 61784-5-6Edition 2.0 2010-07INTERNATIONAL STANDARD
Industrial communication networks – Profiles –
Part 5-6: Installation of fieldbuses – Installation profiles for CPF 6
INTERNATIONAL ELECTROTECHNICAL COMMISSION XICS 25.040.40; 35.100.40 PRICE CODEISBN 978-2-88912-054-3
® Registered trademark of the International Electrotechnical Commission ® SIST EN 61784-5-6:2012 colourinside
– 2 – 61784-5-6 © IEC:2010(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms, definitions and abbreviated terms.7 4 CPF 6: Overview of installation profiles.7 5 Installation profile conventions.7 6 Conformance to installation profiles.8 Annex A (normative)
CPF 6 Type 8 network specific installation profile.10 Annex B (normative)
CPF 6 Ethernet network specific installation profile.34 Bibliography.50
Figure 1 – Standards relationships.6 Figure A.1 – Type 8 network structure example.14 Figure A.2 – Example of a Type 8 network configuration.15 Figure A.3 – Sub-D connector pin assignments.29 Figure A.4 – M23 circular connector pin assignments.29 Figure A.5 – M12 circular connector pin assignments.30 Figure A.6 – Terminal connector at the device.30 Figure B.1 – Plug connector interface M12-FO.43 Figure B.2 – Adaptor connector interface M12-FO.44 Figure B.3 – Terminal connector at the device.48
Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet.16 Table A.2 – Network characteristics for optical fibre cabling.17 Table A.3 – Information relevant to balanced cable: fixed cables.18 Table A.4 – Information relevant to balanced cable: cords.19 Table A.5 – Remote bus fibre optic cable length.21 Table A.6 – Connectors for copper cabling CPs not based on Ethernet.22 Table A.7 – Optical fibre connecting hardware.22 Table A.8 – Relationship between FOC and fibre types (Type 8 networks).23 Table A.9 – Colour code for balanced cables used by Type 8 networks.24 Table A.10 – Parameters for balanced cables.27 Table A.11 – Parameters for silica optical fibre cables.27 Table A.12 – Parameters for POF optical fibre cables.27 Table A.13 – Parameters for hard clad silica optical fibre cables.28 Table A.14 – Pin assignment of the terminal connector.30 Table B.1 – Network characteristics for balanced cabling based on Ethernet.37 Table B.2 – Network characteristics for optical fibre cabling.37 Table B.3 – Information relevant to balanced cable: fixed cables.39 Table B.4 – Information relevant to balanced cable: cords.40 Table B.5 — Information relevant to optical fibre cables.41 SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 3 – Table B.6 – Connectors for balanced cabling CPs based on Ethernet.42 Table B.7 – Optical fibre connecting hardware.42 Table B.8 – Relationship between FOC and fibre types (CP 6/2 Ethernet network).45 Table B.9 – Parameters for balanced cables.47 Table B.10 – Parameters for silica optical fibre cables.47 Table B.11 – Parameters for POF optical fibre cables.47 Table B.12 – Parameters for hard clad silica optical fibre cables.48
SIST EN 61784-5-6:2012
– 4 – 61784-5-6 © IEC:2010(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-6: Installation of fieldbuses –
Installation profiles for CPF 6
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61784-5-6 has been prepared by subcommittee 65C: Industrial networks, of IEC technical committee 65: Industrial-process measurement, control and automation. 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: a) alignment to IEC 61918:2010; b) addition of the M12-FO connector. This standard is to be used in conjunction with IEC 61918:2010. The text of this standard is based on the following documents: SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 5 – FDIS Report on voting 65C/602/FDIS 65C/616/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. A list of all parts of the IEC 61784-5 series, published under the general title Industrial communication networks – Profiles – Installation of fieldbuses, 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
• 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.
SIST EN 61784-5-6:2012
– 6 – 61784-5-6 © IEC:2010(E) INTRODUCTION This International Standard is one of a series produced to facilitate the use of communication networks in industrial control systems. IEC 61918:2010 provides the common requirements for the installation of communication networks in industrial control systems. This installation profile standard provides the installation profiles of the communication profiles (CP) of a specific communication profile family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by supplementing, modifying, or replacing the other requirements (see Figure 1). For general background on fieldbuses, their profiles, and relationship between the installation profiles specified in this standard, see IEC/TR 61158-1. Each CP installation profile is specified in a separate annex of this standard. Each annex is structured exactly as the reference standard IEC 61918 for the benefit of the persons representing the roles in the fieldbus installation process as defined in IEC 61918 (planner, installer, verification personnel, validation personnel, maintenance personnel, administration personnel). By reading the installation profile in conjunction with IEC 61918, these persons immediately know which requirements are common for the installation of all CPs and which are modified or replaced. The conventions used to draft this standard are defined in Clause 5. The provision of the installation profiles in one standard for each CPF (for example IEC 61784-5-6 for CPF 6), allows readers to work with standards of a convenient size. INDUSTRIAL PREMISESISO/IEC
24702OFFICE PREMISESISO/IEC
11801ISO/IEC14763-2IEC 61918(Common requirements)IEC
61158 seriesandIEC 61784-1, -2GENERIC CABLINGBETWEENAUTOMATIONISLANDSAPPLICATION-SPECIFICCABLINGWITHINAUTOMATIONISLANDSBETWEENAUTOMATIONISLANDSDESIGNPLANNING AND INSTALLATIONInstallation ProfilesIEC 61784-5 series(Selection +Add/Repl/Mod)Common structureData centre AnnexHomeAnnexOfficesAnnexIndustrialAnnexISO/IEC
15018ISO/IEC
24764HOMES DATA CENTRES Figure 1 – Standards relationships
SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 7 – INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-6: Installation of fieldbuses –
Installation profiles for CPF 6
1 Scope This part of IEC 61784 specifies the installation profiles for CPF 6 (INTERBUS)1. The installation profiles are specified in the annexes. These annexes are read in conjunction with IEC 61918:2010. 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 61918:2010, Industrial communication networks – Installation of communication networks in industrial premises The normative references of IEC 61918:2010, Clause 2, apply. For profile specific normative references, see Clauses A.2 and B.2. 3 Terms, definitions and abbreviated terms For the purposes of this document, the terms, definitions and abbreviated terms of IEC 61918:2010, Clause 3, apply. For profile specific terms, definitions and abbreviated terms see Clauses A.3 and B.3. 4 CPF 6: Overview of installation profiles CPF 6 consists of seven communication profiles (see IEC 61784-1 for CP 6/1, CP 6/2, CP 6/3, see 61784-2 for CP 6/4, CP 6/5, CP 6/6, see 61784-3-6 for FSCP 6/7). The CPF 6 Type 8 network (non Ethernet based) installation profile is specified in Annex A.
The CP 6/2 Ethernet specific installation profile file is specified in Annex B. 5 Installation profile conventions The numbering of the clauses and subclauses in the annexes of this standard corresponds to the numbering of IEC 61918 main clauses and subclauses. ——————— 1
INTERBUS is a trade name of INTERBUS Club, an independent organisation of users and vendors of INTERBUS products. This information is given for the convenience of users of this International Standard and does not constitute an endorsement by IEC of the trademark holder or any of its products. Compliance to this profile does not require use of the trade name INTERBUS. Use of the trade name INTERBUS requires permission of the trade name holder. SIST EN 61784-5-6:2012
– 8 – 61784-5-6 © IEC:2010(E) The annex clauses and subclauses of this standard supplement, modify, or replace the respective clauses and subclauses in IEC 61918. Where there is no corresponding subclause of IEC 61918 in the normative annexes in this standard, the subclause of IEC 61918 applies without modification. The annex heading letter represents the installation profile assigned in Clause 4. The annex (sub)clause numbering following the annex letter shall represent the corresponding (sub)clause numbering of IEC 61918. EXAMPLE “Annex B.4.4” in IEC 61784-5-3 means that CP 3/2 specifies the Subclause 4.4 of IEC 61918. All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each normative installation profile annex. If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause applies. If in a (sub)clause it is written “Not applicable”, then the corresponding IEC 61918 (sub)clause does not apply. If in a (sub)clause it is written “Addition:”, then the corresponding IEC 61918 (sub)clause applies with the additions written in the profile. If in a (sub)clause it is written “Replacement:”, then the text provided in the profile replaces the text of the corresponding IEC 61918 (sub)clause. NOTE A replacement can also comprise additions. If in a (sub)clause it is written “Modification:”, then the corresponding IEC 61918 (sub)clause applies with the modifications written in the profile. If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written “(Sub)clause x has addition:” (or “replacement:”) or “(Sub)clause x is not applicable.”, then (sub)clause x becomes valid as declared and all the other corresponding IEC 61918 (sub)clauses apply. 6 Conformance to installation profiles Each installation profile within this standard includes part of IEC 61918:2010. It may also include defined additional specifications. A statement of compliance to an installation profile of this standard shall be stated2 as either Compliance to IEC 61784-5-6:2010 3 for CP 6/m or Compliance to IEC 61784-5-6 (Ed.2.0) for CP 6/m where the name within the angle brackets < > is optional and the angle brackets are not to be included. The m within CP 6/m shall be replaced by the profile number 1 to 2. NOTE The name may be the name of the profile, for example INTERBUS. If the name is a trade name then the permission of the trade name holder shall be required. ——————— 2
In accordance with ISO/IEC Directives 3 The date should not be used when the edition number is used. SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 9 – Product standards shall not include any conformity assessment aspects (including quality management provisions), neither normative nor informative, other than provisions for product testing (evaluation and examination). SIST EN 61784-5-6:2012
– 10 – 61784-5-6 © IEC:2010(E) Annex A
(normative)
CPF 6 Type 8 network specific installation profile
A.1 Installation profile scope Addition: This standard specifies the installation profile for CPF 6 Type 8 networks and the related Communication Profiles: • CP 6/1, CP 6/2, CP 6/3 - specified in IEC 61784-1;
• CP 6/4, CP 6/5, CP 6/6 - specified in IEC 61784-2;
• FSCP 6/7 - specified in IEC 61784-3-6. A.2 Normative references
Addition: IEC 60794-1-2:2003, Optical fibre cables – Part 1-2: Generic specification - Basic optical cable test procedures IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications – Part 1: Generic specification IEC 61156-5 - Ed. 1.0, Multicore and symmetrical pair/quad cables for digital communications – Part 5: Symmetrical pair/quad cables with transmission characteristics up to 600 MHz – Horizontal floor wiring – Sectional specification IEC 60189-1:2007, Low-frequency cables and wires with PVC insulation and PVC sheath – Part 1: General test and measuring methods A.3 Installation profile terms, definitions, and abbreviated terms A.3.1 Terms and definitions Addition: A.3.1.1
bus coupler a device that divides the Type 8 network into segments by opening the ring and integrating another ring at this point A.3.1.2
local bus a ring segment of a Type 8 network with alternate media specifications, which is coupled to a remote bus device via a bus coupler
A.3.1.3
local bus device device that operates as a slave on a local bus SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 11 – A.3.1.4
master device that controls the data transfer on the Type 8 network and initiates the media access of the slaves by sending messages and that constitutes the interface to the control system A.3.1.5
remote bus
a ring segment of a network
A.3.1.6
remote bus
device operating as a slave on a remote bus A.3.1.7
remote bus link connection of two remote bus devices A.3.1.8
ring segment one section of a Type 8 network A.3.1.9
slave a device that accesses the medium only after it has been initiated by the preceding slave or master A.3.2 Abbreviated terms Addition: BC Bus coupler
COM Ground line /DI Incoming interface: send data line –
Outgoing interface: receive data line – DI Incoming interface: send data line +
Outgoing interface: receive data line + /DO Incoming interface: receive data line –
Outgoing interface: send data line - DO Incoming interface: receive data line +
Outgoing interface: send data line + PELV Protective Extra Low Voltage SELV Safety Extra Low Voltage A.3.3 Conventions for installation profiles Not applicable. SIST EN 61784-5-6:2012
– 12 – 61784-5-6 © IEC:2010(E) A.4 Installation planning A.4.1 Introduction
A.4.1.1 Objective A.4.1.2 Cabling in industrial premises A.4.1.3 The planning process A.4.1.4 Specific requirements for CPs Not applicable. A.4.1.5 Specific requirements for generic cabling in accordance with ISO/IEC 24702 Not applicable. A.4.2 Planning requirements A.4.2.1 Safety A.4.2.1.1 General A.4.2.1.2 Electric safety Addition: Power distribution system shall comply with IEC 60364-1 312.2.1 TN-S systems, i.e. earthed by bonding of bodies with separated conductors for neutral (N) and protection earth (PE). Otherwise there are additional efforts necessary to avoid currents on the shield, i.e. an a.c. earthed system on one end in a network with balanced cables or a network built with FO-cables. For networks built with OF-cables the power distribution system should comply with IEC 60364-1 312.2.1 TN S systems. PELV is the default version for the power supply with extra-low-voltage, but SELV may also be used. Temporary connected devices shall be powered by PELV or SELV. A.4.2.1.3 Functional safety A.4.2.1.4 Intrinsic safety Not applicable. A.4.2.1.5 Safety of optical fibre communication systems A.4.2.2 Security A.4.2.3 Environmental considerations and EMC A.4.2.3.1 Description methodology
A.4.2.3.2 Use of the described environment to produce a bill of material
Addition: To make fieldbus installation work easier for inexperienced planners, the user shall determine suitability of the components for the targeted environment through agreements with the component providers. The planner shall also observe the related technical data from the active devices. Depending on the expected environment he should define additional requirements. SIST EN 61784-5-6:2012
61784-5-6 © IEC:2010(E) – 13 – The planner shall take into account the mating or terminating interface of devices to be connected to the fieldbus network. The planner also shall take care about the environmental conditions of the whole Type 8 network and select suitable mitigation techniques in addition to meet the respective requirements. Products necessary for mitigation also shall be mentioned in the bill of material. A.4.2.4 Specific requirements for generic cabling in accordance with ISO/IEC 24702 Not applicable. A.4.3 Network capabilities A.4.3.1 Network topology A.4.3.1.1 Common description A.4.3.1.2 Basic physical topologies for passive networks Not applicable. A.4.3.1.3 Basic physical topologies for active networks
Replacement: For Type 8 networks only the ring topology specified in IEC 61158-2:2007 shall be used. NOTE The Type 8 ring topology is achieved with specific cables and resembles a linear tree topology. Futher explanation of the physical layer of Type 8 networks can be found in IEC 61158-2. A.4.3.1.4 Combination of basic topologies Replacement: The combination of several topologies may also be used according to A.4.3.1.5 A.4.3.1.5 Specific requirements for CPs Addition: The general structure is a ring topology with special cables to build tree like configurations. Bus couplers allow a branch from the remote bus to the local bus or to a further remote bus. Figu
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