|
IEC 61158-6-12
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-12: Application layer protocol specification – Type 12 elements
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
.
IEC 61158-6-12
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-12: Application layer protocol specification – Type 12 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-7011-0
– 2 – IEC 61158-6-12:2019 © IEC 2019
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 11
1.1 General . 11
1.2 Specifications . 12
1.3 Conformance . 12
2 Normative references . 12
3 Terms, definitions, symbols, abbreviations and conventions . 13
3.1 Reference model terms and definitions . 13
3.2 Service convention terms and definitions . 14
3.3 Application layer definitions . 14
3.4 Common symbols and abbreviations . 19
3.5 Additional symbols and abbreviations . 20
3.6 Conventions . 20
3.6.1 General concept . 20
3.6.2 Convention for the encoding of reserved bits and octets . 21
3.6.3 Conventions for the common codings of specific field octets . 21
3.6.4 Abstract syntax conventions . 22
3.6.5 State machine conventions . 23
4 Application layer protocol specification . 25
4.1 Operating principle . 25
4.2 Node reference model . 25
4.2.1 Mapping onto OSI basic reference model. 25
4.2.2 Data Link Layer features . 26
4.2.3 Application Layer structure . 26
5 FAL syntax description . 27
5.1 Coding principles . 27
5.2 Data types and encoding rules . 27
5.2.1 General description of data types and encoding rules . 27
5.2.2 Encoding of a Boolean value . 27
5.2.3 Encoding of a Time Of Day with and without date indication value . 27
5.2.4 Encoding of a Time Difference with and without date indication value . 28
5.2.5 Transfer syntax for bit sequences . 28
5.2.6 Encoding of a Unsigned Integer value . 28
5.2.7 Encoding of a Signed Integer value . 29
5.2.8 Encoding of a Floating Point value . 30
5.2.9 Encoding of a Visible String value. 30
5.2.10 Encoding of a Unicode String value . 30
5.2.11 Encoding of an Octet String value . 30
5.2.12 Encoding of GUID . 30
5.3 AR coding . 30
5.3.1 AL Control Request (Indication) . 30
5.3.2 AL Control Response (Confirmation) . 31
5.3.3 AL State Changed . 33
5.3.4 AL AR Attributes . 34
5.4 SII coding . 36
5.5 Isochronous PDI coding . 41
5.6 CoE coding . 43
5.6.1 PDU structure . 43
5.6.2 SDO . 44
5.6.3 SDO Information . 56
5.6.4 Emergency . 65
5.6.5 Process Data . 69
5.6.6 Command . 70
5.6.7 Object Dictionary . 71
5.7 EoE coding . 81
5.7.1 Initiate EoE . 81
5.7.2 EoE Fragment Data . 83
5.7.3 Data element for EoE . 84
5.7.4 Set IP Parameter . 85
5.7.5 Set Address Filter . 88
5.8 FoE Coding . 90
5.8.1 Read Request . 90
5.8.2 Write Request . 91
5.8.3 Data Request . 92
5.8.4 Ack Request . 93
5.8.5 Error Request . 94
5.8.6 Busy Request . 95
6 FAL protocol state machines . 96
6.1 Overall structure . 96
6.1.1 Overview . 96
6.1.2 Fieldbus Service Protocol Machines (FSPM). 97
6.1.3 Application Relationship Protocol Machines (ARPM) . 97
6.1.4 DLL Mapping Protocol Machines (DMPM) . 98
6.2 AP-Context state machine . 98
6.3 FAL service protocol machine (FSPM) . 98
6.4 Application Relationship Protocol Machines (ARPMs) . 98
6.4.1 AL state machine . 98
6.4.2 Mailbox handler state machine . 117
6.4.3 CoE state machine . 118
6.4.4 EoE state machine . 129
6.4.5 FoE state machine . 136
6.5 DLL mapping protocol machine (DMPM) . 141
Bibliography . 142
Figure 1 – Common structure of specific fields . 21
Figure 2 – Type description example. 22
Figure 3 – Slave Node Reference Model . 26
Figure 4 – Encoding of Time of Day value . 27
Figure 5 – Encoding of Time Difference value . 28
Figure 6 – AL Control Request structure . 30
Figure 7 – AL Control Response structure . 31
Figure 8 – AL State Changed structure . 34
– 4 – IEC 61158-6-12:2019 © IEC 2019
Figure 9 – PDI Control type description . 34
Figure 10 – Sync Configuration type description . 35
Figure 11 – Distributed Clock sync and latch type description . 41
Figure 12 – CoE general structure .
...