|
IEC 61158-4-19
Edition 4.0 2019-04
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 4-19: Data-link layer protocol specification – Type 19 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and withdrawn publications.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 61158-4-19
Edition 4.0 2019-04
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 4-19: Data-link layer protocol specification – Type 19 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6776-9
– 2 – IEC 61158-4-19:2019 © IEC 2019
CONTENTS
FOREWORD . 24
INTRODUCTION . 26
1 Scope . 28
1.1 General . 28
1.2 Specifications . 28
1.3 Procedures . 28
1.4 Applicability . 28
1.5 Conformance . 29
2 Normative references . 29
3 Terms, definitions, symbols, acronyms, abbreviations and conventions . 29
3.1 Reference model terms and definitions . 29
3.2 Additional Type 19 terms and definitions . 30
3.3 Symbols . 33
3.4 Acronyms and abbreviations . 34
3.5 Additional conventions . 35
4 DL-protocol overview . 35
4.1 Overview . 35
4.2 General DLPDU identification . 37
4.2.1 Introduction . 37
4.2.2 Destination address (Dest MAC) . 37
4.2.3 Source address (Src MAC) . 37
4.2.4 EtherType . 37
4.3 General DLPDU structure . 37
4.3.1 Introduction . 37
4.3.2 DLPDU header . 38
4.3.3 DLPDU payload . 38
4.4 DLPDU header . 38
4.4.1 Introduction . 38
4.4.2 DLPDU type. 38
4.5 MDT DLPDU . 39
4.5.1 MDT MST field summary . 39
4.5.2 Evaluation of MDT header in the slaves . 39
4.5.3 MDT type . 40
4.5.4 MDT phase . 40
4.5.5 MDT CRC . 40
4.5.6 MDT payload during initialization . 40
4.5.7 MDT payload in normal operation (CP4) . 44
4.6 AT DLPDU . 51
4.6.1 AT header field summary . 51
4.6.2 Evaluation of AT header in the slaves . 51
4.6.3 AT type . 52
4.6.4 AT phase . 52
4.6.5 AT CRC . 52
4.6.6 AT Payload during initialization . 52
4.6.7 AT payload in CP4 . 56
4.7 Mechanisms of connections . 62
4.7.1 Introduction . 62
4.7.2 Configuration of connections . 63
4.7.3 Connection control . 64
4.7.4 Producer state machine . 66
4.7.5 Consumer state machine . 68
5 DL management . 72
5.1 Overview . 72
5.2 Initialization of cyclic communication. 72
5.2.1 Introduction . 72
5.2.2 Communication phases (CP) . 73
5.2.3 Switching of communication phases (CPS) . 86
5.2.4 Communication Version . 98
5.2.5 Address allocation in the master and slave . 99
5.3 Network topologies . 101
5.3.1 Introduction . 101
5.3.2 Ring topology . 102
5.3.3 Line topology . 102
5.3.4 Topology conditions of a slave device . 103
5.3.5 Topology conditions of a multi-slave device . 104
5.3.6 Topology state machine . 108
5.3.7 States of Topology state machine of slave . 109
5.3.8 Transitions of Topology state machine . 110
5.4 Redundancy of RT communication with ring topology . 112
5.4.1 Introduction . 112
5.4.2 Sequence with ring break . 112
5.4.3 Recovery of ring topology . 113
5.4.4 Recovery of P channel . 114
5.4.5 Recovery of S channel . 115
5.5 Hot-plug procedure . 115
5.5.1 Introduction . 115
5.5.2 Hot-plug state machine . 116
5.5.3 States of HP state machine . 117
5.5.4 Transitions of HP state machine . 121
5.6 Watchdog . 122
5.7 Status procedures . 122
6 Data transmission methods . 123
6.1 Overview . 123
6.2 Service channel (SVC) . 123
6.2.1 SVC handling . 123
6.2.2 Opening and closing SVC . 124
6.2.3 Selection of data block element . 124
6.2.4 Changing of data block element . 124
6.2.5 Transmission steps . 125
6.2.6 SVC valid . 126
6.2.7 Handshake bits . 126
6.2.8 Read/Write . 127
6.2.9 Busy bit . 127
6.2.10 Service channel initialization . 128
6.2.11 Reaction to SVC handshake timeout . 128
6.2.12 Reaction to error messages in the service channel . 128
...