1、 IEC 61158-6-21Edition 1.0 2010-08INTERNATIONAL STANDARD Industrial communication networks Fieldbus specifications Part 6-21:Application layer protocol specification Type 21 elements IEC 61158-6-21:2010(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-
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9、se visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled
10、when printed.IEC 61158-6-21Edition 1.0 2010-08INTERNATIONAL STANDARD Industrial communication networks Fieldbus specifications Part 6-21:Application layer protocol specification Type 21 elements INTERNATIONAL ELECTROTECHNICAL COMMISSION XAICS 25.04.40;35.100.70;35.110 PRICE CODEISBN 978-2-88912-135-
11、9 Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 61158-6-21 IEC:2010(E)CONTE
12、NTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 1.1 General.8 1.2 Overview.8 1.3 Specifications.9 1.4 Conformance.9 2 Normative references.9 3 Terms,definitions,symbols,abbreviations,and conventions.10 3.1 Terms and definitions from other ISO/IEC standards.10 3.2 Other terms and definitions.10 3.3 Abbreviat
13、ions and symbols.16 3.4 Conventions.17 4 FAL syntax description.19 4.1 General.19 4.2 FAL-AR PDU abstract syntax.19 4.3 Abstract syntax of PDU body.20 4.4 Protocol data units(PDUs)for application service elements(ASEs).21 5 Transfer Syntax.24 5.1 Overview of encoding.24 5.2 APDU header encoding.25 5
14、.3 APDU body encoding.26 5.4 Encoding of Data types.26 6 FAL protocol state machines.30 7 AP context state machine.32 8 FAL service protocol machine.32 8.1 General.32 8.2 Common parameters of the primitives.32 8.3 AP ASE protocol machine.32 8.4 Service data object ASE protocol machine(SDOM).36 8.5 P
15、rocess data object ASE protocol machine(PDOM).40 9 AR protocol machine.41 9.1 General.41 9.2 Point-to-point user-triggered confirmed client/server AREP(PTC-AR)ARPM.42 9.3 Multipoint network-scheduled unconfirmed publisher/subscriber AREP(MSU-AR)ARPM.44 9.4 Multipoint user-triggered unconfirmed publi
16、sher/subscriber AREP(MTU-AR)ARPM.47 10 DLL mapping protocol machine.49 10.1 Primitive definitions.49 10.2 DMPM state machine.50 Bibliography.51 Figure 1 Common structure of specific fields.17 Figure 2 APDU overview.25 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.61158-6-21 IEC:2010(E)3 Figure 3 Type field.25 Figure 4 Encoding of Time of Day
