Industrial communication networks - Fieldbus specifications - Part 4-2: Data-link layer protocol specification - Type 2 elements

IEC 61158-4-2:2007 describes the protocol that provides communication opportunities to all participating data-link entities, sequentially and in a cyclic synchronous manner. Foreground scheduled access is available for time-critical activities together with background unscheduled access for less critical activities. This protocol optimizes each access opportunity by concatenating multiple DLSDUs and associated DLPCI into a single DLPDU, thereby improving data transfer efficiency for data-link entities that actively source multiple streams of data. This first edition and its companion parts of the IEC 61158-4 subseries cancel and replace IEC 61158-4:2003. This edition of this part constitutes a minor revision. This part and its companion Type 2 parts also cancel and replace IEC/PAS 62413, published in 2005. This edition of IEC 61158-4 includes the following changes:
- deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data link layer, for lack of market relevance;
- addition of new types of fieldbuses;
- division of this part into multiple parts numbered -4 1, -4 2, , -4-19. This bilingual version (2014-07) corresponds to the English version, published in 2007-12.

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 4-2: Spécification du protocole de la couche liaison de données - Eléments de type 2

L'IEC 61158-4-2:2007 décrit un protocole qui offre des opportunités de communication séquentielle et synchrone cyclique à toutes les entités de liaison de données participantes. Un accès planifié de premier plan est proposé à toutes les activités à contrainte de temps, un accès non planifié l'étant aux activités moins critiques. Ce protocole permet d'optimiser chaque opportunité d'accès en concaténant plusieurs DLSDU et DLPCI associés en une seule DLPDU, améliorant le transfert de données des entités de liaison de données qui émettent activement plusieurs flux de données. Cette première édition et ses parties d'accompagnement de la sous-série CEI 61158-4 annulent et remplacent la CEI 61158-4:2003. Elle constitue une révision mineure. Cette partie et ses parties d'accompagnement pour le Type 2 annulent et remplacent également la CEI/PAS 62413, publiée en 2005. Elle inclut les modifications suivantes:
- suppression du précédent bus de terrain de Type 6 et de la référence à une couche de liaison de données de bus de terrain de Type 5, en raison du manque d'adéquation au marché;
- ajout de nouveaux types de bus de terrain; division de cette partie en parties multiples numérotées -4 1, -4 2, , -4-19. La présente version bilingue (2014-07) correspond à la version anglaise monolingue publiée en 2007-12.

General Information

Status
Published
Publication Date
13-Dec-2007
Technical Committee
Drafting Committee
Current Stage
DELPUB - Deleted Publication
Completion Date
06-Aug-2010
Ref Project

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IEC 61158-4-2:2007 - Industrial communication networks - Fieldbus specifications - Part 4-2: Data-link layer protocol specification - Type 2 elements Released:12/14/2007 Isbn:283189428X
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IEC 61158-4-2:2007 - Industrial communication networks - Fieldbus specifications - Part 4-2: Data-link layer protocol specification - Type 2 elements Released:12/14/2007 Isbn:9782832216972
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IEC 61158-4-2
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 4-2: Data-link layer protocol specification – Type 2 elements

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

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IEC 61158-4-2
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 4-2: Data-link layer protocol specification – Type 2 elements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XH
ICS 35.100.20; 25.040.40 ISBN 2-8318-9428-X

– 2 – 61158-4-2 © IEC:2007(E)
CONTENTS
FOREWORD.7

INTRODUCTION.9

1 Scope.10

1.1 General .10

1.2 Specifications.10

1.3 Procedures.10

1.4 Applicability.11

1.5 Conformance.11
2 Normative references .11
3 Terms, definitions, symbols and abbreviations.12
3.1 Reference model terms and definitions.12
3.2 Service convention terms and definitions.14
3.3 Common terms and definitions .15
3.4 Additional Type 2 definitions.16
3.5 Type 2 symbols and abbreviations.23
4 Overview of the DL-protocol .24
4.1 General .24
4.2 Services provided by the DL.26
4.3 Structure and definition of DL-addresses.27
4.4 Services assumed from the PhL .29
4.5 Functional classes.31
5 General structure and encoding of PhIDUs and DLPDUs and related elements of
procedure.32
5.1 Overview .32
5.2 Media access procedure.32
5.3 DLPDU structure and encoding .35
5.4 Lpacket components .39
5.5 DLPDU procedures .41
5.6 Summary of DLL support services and objects .42
6 Specific DLPDU structure, encoding and procedures.44
6.1 Modeling language .44
6.2 DLS user services .46
6.3 Generic tag Lpacket .52
6.4 Moderator Lpacket .53
6.5 Time distribution Lpacket .54
6.6 UCMM Lpacket.57
6.7 Keeper UCMM Lpacket.57
6.8 TUI Lpacket.58
6.9 Link parameters Lpacket and tMinus Lpacket .59
6.10 I’m-alive Lpacket .60
6.11 Ping Lpackets.62
6.12 WAMI Lpacket .64
6.13 Debug Lpacket .64
6.14 IP Lpacket .65
6.15 Ethernet Lpacket .65
7 Objects for station management .65

61158-4-2 © IEC:2007(E) – 3 –
7.1 General .65

7.2 ControlNet object .66

7.3 Keeper object.76

7.4 Scheduling object.98

7.5 TCP/IP Interface object .109

7.6 Ethernet link object.118

7.7 DeviceNet object .124

7.8 Connection configuration object (CCO). 132

8 Other DLE elements of procedure. 152

8.1 Network attachment monitor (NAM) .152
8.2 Calculating link parameters .159
9 Detailed specification of DL components .167
9.1 General .167
9.2 Access control machine (ACM).167
9.3 TxLLC .184
9.4 RxLLC .188
9.5 Transmit machine (TxM).191
9.6 Receive machine (RxM) .194
9.7 Serializer.200
9.8 Deserializer .201
9.9 DLL management .202
Annex A (normative) Indicators and switches.205
A.1 Purpose .205
A.2 Indicators .205
A.3 Switches .216
Bibliography.218
INDEX .219

Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses .15
Figure 2 – Data-link layer internal architecture.25
Figure 3 – Basic structure of a MAC ID address.27
Figure 4 – Basic structure of a generic tag address .27
Figure 5 – Basic structure of a fixed tag address .28
Figure 6 – M_symbols and Manchester encoding at 5 MHz (informative) .29

Figure 7 – NUT structure .33
Figure 8 – Media access during scheduled time.33
Figure 9 – Media access during unscheduled time .34
Figure 10 – DLPDU format.35
Figure 11 – Aborting a DLPDU during transmission .39
Figure 12 – Lpacket format .39
Figure 13 – Generic tag Lpacket format .40
Figure 14 – Fixed tag Lpacket format.41
Figure 15 – Goodness parameter of TimeDist_Lpacket .55
Figure 16 – Example I’m alive processing algorithm.62
Figure 17 – Keeper CRC algorithm .82
Figure 18 – Keeper object power-up state diagram .94

– 4 – 61158-4-2 © IEC:2007(E)
Figure 19 – Keeper object operating state diagram .95

Figure 20 – Synchronized network change processing .98

Figure 21 – State transition diagram for TCP/IP Interface object .118

Figure 22 – Connection configuration object edit flowchart. 152

Figure 23 – NAM state machine .153

Figure A.1 – Non redundant network status indicator labeling . 209

Figure A.2 – Redundant network status indicator labeling .
...


IEC 61158-4-2 ®
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial communication networks – Fieldbus specifications –
Part 4-2: Data-link layer protocol specification – Type 2 elements

Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 4-2: Spécification du protocole de la couche liaison de données –
Éléments de Type 2
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 61158-4-2 ®
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial communication networks – Fieldbus specifications –

Part 4-2: Data-link layer protocol specification – Type 2 elements

Réseaux de communication industriels – Spécifications des bus de terrain –

Partie 4-2: Spécification du protocole de la couche liaison de données –

Éléments de Type 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 25.040.40; 35.100.20 ISBN 978-2-8322-1697-2

– 2 – IEC 61158-4-2:2007 © IEC 2007
CONTENTS
FOREWORD. 7
INTRODUCTION . 9
1 Scope . 10
1.1 General . 10
1.2 Specifications . 10
1.3 Proc edures . 10
1.4 Applicability . 11
1.5 Conformance . 11
2 Normative references . 11
3 Terms, definitions, symbols and abbreviations . 12
3.1 Reference model terms and definitions . 12
3.2 Service convention terms and definitions . 14
3.3 Common terms and definitions . 15
3.4 Additional Type 2 definitions . 16
3.5 Type 2 symbols and abbreviations . 23
4 Overview of the DL-protocol . 24
4.1 General . 24
4.2 Services provided by the DL . 26
4.3 Structure and definition of DL-addresses . 27
4.4 Services assumed from the PhL . 29
4.5 Functional classes . 31
5 General structure and encoding of PhIDUs and DLPDUs and related elements of
procedure . 32
5.1 Overview . 32
5.2 Media access procedure . 32
5.3 DLPDU structure and encoding . 35
5.4 Lpacket components . 39
5.5 DLPDU procedures . 41
5.6 Summary of DLL support services and objects . 42
6 Specific DLPDU structure, encoding and procedures . 44
6.1 Modeling language . 44
6.2 DLS user services . 46
6.3 Generic tag Lpacket . 52
6.4 Moderator Lpacket . 53
6.5 Time distribution Lpacket . 54
6.6 UCMM Lpacket . 57
6.7 Keeper UCMM Lpacket . 57
6.8 TUI Lpacke t . 58
6.9 Link parameters Lpacket and tMinus Lpacket . 59
6.10 I’m-alive Lpacket . 60
6.11 Ping Lpack e ts . 62
6.12 WAMI Lpacket . 64
6.13 Debug Lpacket . 64
6.14 IP Lpacket . 65
6.15 Ethernet Lpacket . 65
7 Objects for station management . 65

7.1 General . 65
7.2 ControlNet object . 66
7.3 Keeper object . 76
7.4 Scheduling object . 98
7.5 TCP/IP Interface object . 109
7.6 Ethernet link object . 118
7.7 DeviceNet object . 124
7.8 Connection configuration object (CCO) . 132
8 Other DLE elements of procedure . 152
8.1 Network attachment monitor (NAM) . 152
8.2 Calculating link parameters . 159
9 Detailed specification of DL components . 167
9.1 General . 167
9.2 Access control machine (ACM) . 167
9.3 TxLLC . 184
9.4 RxLLC . 188
9.5 Transmit machine (TxM) . 191
9.6 Receive machine (RxM) . 194
9.7 Serializer .
...

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