1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Industrial communication networks Profiles AdditionalFieldbus profiles for real-time networks based on ISO/IEC 88
2、02-3 SNpTYPEDD IEC/PAS 62633:2009National forewordThis Draft for Development is the UK implementation of IEC/PAS 62633:2009.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is ofa provisional nature. It should be
3、applied on this provisional basis, so thatinformation and experience of its practical application can be obtained.A PAS is a Technical Specification not fulfilling the requirements for a stan-dard, but made available to the public and established in an organizationoperating under a given procedure.A
4、 review of this Draft for Development will be carried out not later than threeyears after its publication.Notification of the start of the review period, with a request for the submis-sion of comments from users of this Draft for Development, will be made inan announcement in the appropriate issue o
5、f Update Standards. Accordingto the replies received, the responsible BSI Committee will judge whether thevalidity of the PAS should be extended for a further three years or what otheraction should be taken and pass their comments on to the relevant interna-tional committee.Observations which it is
6、felt should receive attention before the official callfor comments will be welcomed. These should be sent to the Secretary of theresponsible BSI Technical Committee at British Standards House, 389 ChiswickHigh Road, London W4 4AL.The UK participation in its preparation was entrusted to Technical Com
7、mitteeAMT/7, Industrial communications: process measurement and control, includ-ing fieldbus.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible
8、for its correct application. BSI 2009ISBN 978 0 580 68883 6ICS 25.040.40; 35.100.05Compliance with a British Standard cannot confer immunity fromlegal obligations.This Draft for Development was published under the authority of theStandards Policy and Strategy Committee on 30 September 2009Amendments
9、 issued since publicationAmd. No. Date Text affectedBRITISH STANDARDDD IEC/PAS 62633:2009IEC/PAS 62633Edition 1.0 2009-08PUBLICLY AVAILABLE SPECIFICATIONPRE-STANDARD Industrial communication networks Profiles Additional Fieldbus profiles for real-time networks based on ISO/IEC 8802-3 SNpTYPE INTERNA
10、TIONAL ELECTROTECHNICAL COMMISSION RICS 25.040.40; 35.100.05 PRICE CODEISBN 2-8318-1056-2 Registered trademark of the International Electrotechnical Commission DD IEC/PAS 62633:2009 2 PAS 62633 IEC:2009(E) CONTENTS FOREWORD.3 INTRODUCTION.4 1 Scope.5 2 Normative references .5 3 Terms, definitions, a
11、bbreviated terms, acronyms, and conventions.5 3.1 Terms and definitions 5 3.1.30 5 3.2 Abbreviated terms and acronyms 5 3.3 Symbols 6 3.3.12 CPF SNpFAMILY symbols .6 3.4 Conventions 6 4 Conformance to communication profiles .6 5 RTE performance indicators .6 6 Conformance tests .6 7 Communication Pr
12、ofile Family SNpFAMILY (SafetyNET p) - RTE communication profiles .7 7.1 General overview 7 7.2 Profile SNpFAMILY/1 7 7.2.1 Physical layer 7 7.2.2 Data link layer .7 7.2.3 Application layer10 7.2.4 Performance indicator selection.11 7.3 Profile SNpFAMILY/2 14 7.3.1 Physical layer 14 7.3.2 Data link
13、layer .14 7.3.3 Application layer17 7.3.4 Performance indicator selection.19 Table 1 CP SNpFAMILY/1: DLL service selection 7 Table 2 CP SNpFAMILY/1: DLL protocol selection .9 Table 3 CP SNpFAMILY/1: AL service selection.10 Table 4 CP SNpFAMILY/1: AL protocol selection .11 Table 5 CP SNpFAMILY/1: Per
14、formance indicator overview.12 Table 6 CP SNpFAMILY/1: Performance indicator dependency matrix .12 Table 7 CP SNpFAMILY/2: DLL service selection 15 Table 8 CP SNpFAMILY/2: DLL protocol selection .16 Table 9 CP SNpFAMILY/2: AL service selection.17 Table 10 CP SNpFAMILY/2: AL protocol selection .18 Ta
15、ble 11 CP SNpFAMILY/2: Performance indicator overview.19 Table 12 CP SNpFAMILY/2: Performance indicator dependency matrix .19 DD IEC/PAS 62633:2009PAS 62633 IEC:2009(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL COMMUNICATION NETWORKS PROFILES ADDITIONAL FIELDBUS PROFILES FOR REAL-TIME
16、 NETWORKS BASED ON ISO/IEC 8802-3 SNpTYPE 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 q
17、uestions 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 Publicat
18、ion(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 c
19、ollaborates 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 opini
20、on 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 en
21、sure 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
22、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
23、 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 t
24、echnical 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
25、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 su
26、bject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. A PAS is a technical specification not fulfilling the requirements for a standard, but made available to the public. IEC-PAS 62633 has been processed by subcommittee 65C: Industrial networks, of
27、IEC technical committee 65: Industrial-process measurement, control and automation. The text of this PAS is based on the following document: This PAS was approved for publication by the P-members of the committee concerned as indicated in the following document Draft PAS Report on voting 65C/530/PAS
28、 65C/534/RVD Following publication of this PAS, which is a pre-standard publication, the technical committee or subcommittee concerned may transform it into an International Standard. This PAS shall remain valid for an initial maximum period of 3 years starting from the publication date. The validit
29、y may be extended for a single 3-year period, following which it shall be revised to become another type of normative document, or shall be withdrawn. DD IEC/PAS 62633:2009 4 PAS 62633 IEC:2009(E) INTRODUCTION This PAS contains an additional profile SNpTYPE which may be integrated into a future new
30、edition of IEC 61784-2. DD IEC/PAS 62633:2009PAS 62633 IEC:2009(E) 5 INDUSTRIAL COMMUNICATION NETWORKS PROFILES ADDITIONAL FIELDBUS PROFILES FOR REAL-TIME NETWORKS BASED ON ISO/IEC 8802-3 SNpTYPE 1 Scope This Clause is identical in form and content for all CPFs to that of IEC 61784-2:2007. 2 Normati
31、ve 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. This Clause is identical in form an
32、d content for all CPFs to that of IEC 61784-2:2007. IEC 61784-2:2007, Industrial communication networks Profiles Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3 3 Terms, definitions, abbreviated terms, acronyms, and conventions 3.1 Terms and definitions For the pu
33、rposes of this document, the following terms and definitions apply, in addition to those of IEC 61784-2:2007. 3.1.30 real time frame line (RTFL) communication model for communication with high real time requirements 3.1.31 real time frame network (RTFN) communication model for communication with low
34、 real time requirements 3.2 Abbreviated terms and acronyms The following additional abbreviated terms and acronyms for CPF SNpFAMILY apply, in addition to those of IEC 61784-2:2007. RTFL Real time frame line RTFN Real time frame network DD IEC/PAS 62633:2009 6 PAS 62633 IEC:2009(E) 3.3 Symbols The f
35、ollowing additional subclause for the symbols of the new CPF SNpFAMILY applies, in addition to those of IEC 61784-2:2007. 3.3.12 CPF SNpFAMILY symbols Symbol Definition Unit lBDistance along the cable in backward direction m lCCable length m lFDistance along the cable in forward direction m NoDoB Nu
36、mber of devices in backward direction NoDoF Number of devices in forward direction NoS Number of switching devices tCDCable delay ns/m tcycCycle time of communication system/relation s tDDelivery time s tdataTransmit time of data frame(s) s tpdPropagation delay s tSTsinkSink stack traversal time s t
37、STsrcSource stack traversal time s tSWDelay time of a switch s 3.4 Conventions This Subclause is identical in form and content for all CPFs to that of IEC 61784-2:2007. 4 Conformance to communication profiles This Clause is identical in form and content for all CPFs to that of IEC 61784-2:2007. 5 RT
38、E performance indicators This Clause is identical in form and content for all CPFs to that of IEC 61784-2:2007. 6 Conformance tests This Clause is identical in form and content for all CPFs to that of IEC 61784-2:2007. DD IEC/PAS 62633:2009PAS 62633 IEC:2009(E) 7 7 Communication Profile Family SNpFA
39、MILY (SafetyNET p1) - RTE communication profiles 7.1 General overview Communication Profile Family SNpFAMILY defines profiles based on IEC/PAS 61158-3-22 through IEC/PAS 61158-6-22. In this part of IEC 61784, the following communication profiles are specified for CPF SNpFAMILY. Profile SNpFAMILY/1 T
40、his profile defines protocol and service selection for devices which utilize the communication model real time frame line (RTFL). Profile SNpFAMILY/2 This profile defines protocol and service selection for devices which utilize the communication model real time frame network (RTFN). 7.2 Profile SNpF
41、AMILY/1 7.2.1 Physical layer The physical layer shall be based on standard Ethernet hardware according to ISO/IEC 8802-3. CP SNpFAMILY/1 devices shall use a data rate of 100 Mbit/s and full-duplex transmission mode. A combination of full-duplex and 100Base-TX with auto crossover function (wire, 2 tw
42、isted pairs) should be used. When using cables, they shall be rated Cat5e or better, and shielded in an appropriate way (FTP, STP or SFTP) depending upon EMC constraints. 7.2.2 Data link layer Data link layer is described in IEC/PAS 61158-3-22 and IEC/PAS 61158-4-22. Table 1 specifies the use of the
43、 services included in this profile. Table 2 specifies the use of the protocol included in this profile. Table 1 CP SNpFAMILY/1: DLL service selection Clause or subclause of IEC/PAS 62633 Header Presence Constraints 4 Data-link layer services and concepts 4.1 Operating principle YES 4.2 Communication
44、 models 4.2.1 Overview YES 4.2.2 RTFL device reference model YES 4.2.3 RTFN device reference model NO 4.3 Topology 1SafetyNET p is a trade name of the Pilz GmbH tcycis the cycle time of the communication system (tcycle tdata); tSTsrcis the stack traversal time including data-link layer and physical
45、layer of the source; tdatais the time to transmit all Real-time Ethernet frames for one cycle; tCDis the cable delay (4,5 to 5 ns/m); lFis the distance along the cable in meters which is passed by the packed from source to last device of the logical line; lBis the distance along the cable in meters
46、which is passed by the packed from last device of the logical line to sink; tpdis the propagation delay of a device in forward or backward direction; tSWis the delay caused by switching procedure; NoDoF is the number of succeeding devices on forward direction from the source to the last device of th
47、e logical line; NoDoB is the number of succeeding devices on backward direction from the last device of the logical line to the sink; tSTsinkis the stack traversal time including data-link layer and physical layer of the sink. NOTE 1 In the case of a linear topology the time factor tSWhas the value
48、0. NOTE 2 The distance in each direction is affected by the number of switching devices within the network topology. 7.2.4.4 Basic network topology The basic network topologies supported by this profile are hierarchical star or linear topology. It is highly recommended to use linear topology to reac
49、h highest performance. For both basic network topologies this profile establishes a logical line topology by appropriate addressing within devices. For detailed information refer to IEC/PAS 61158-4-22. 7.2.4.5 Delivery time dependency on number of end-stations The number of end-stations typically influences the amount of data, thus the time to transmit the data frame as well as the sum of propagation delays. Furthermore the num
