EN 61158-4-2:2014

SLOVENSKI STANDARD
01-marec-2015
1DGRPHãþD
SIST EN 61158-4-2:2012
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 4-2. del:
Specifikacija protokola na ravni podatkovnih povezav - Elementi tipa 2 (IEC 61158-
4-2:2014)
Industrial communication networks - Fieldbus specifications -Part 4-2: Data-link layer
protocol specification - Type 2 elements (IEC 61158-4-2:2014)
Industrielle Kommunikationsnetze - Feldbusse - Teil 4-2: Protokollspezifikation des Data
Link Layer (Sicherungsschicht) - Typ 2-Elemente (IEC 61158-4-2:2014)
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 (CEI
61158-4-2:2014)
Ta slovenski standard je istoveten z: EN 61158-4-2:2014
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.20 Podatkovni povezovalni sloj Data link layer
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61158-4-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 25.040.40; 35.100.20; 35.110 Supersedes EN 61158-4-2:2012
English Version
Industrial communication networks - Fieldbus specifications -Part
4-2: Data-link layer protocol specification - Type 2 elements
(IEC 61158-4-2:2014)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 4-2:
bus de terrain - Partie 4-2: Spécification du protocole de la Protokollspezifikation des Data Link Layer
couche liaison de données - Eléments de type 2 (Sicherungsschicht) - Typ 2-Elemente
(CEI 61158-4-2:2014) (IEC 61158-4-2:2014)
This European Standard was approved by CENELEC on 2014-09-19. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61158-4-2:2014 E
EN 61158-4-2 :2014 - 2 -
Foreword
The text of document 65C/762/FDIS, future edition 3 of IEC 61158-4-2, prepared by SC 65C
“Industrial networks” of IEC/TC 65 “Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61158-4-2:2014.

The following dates are fixed:
• latest date by which the document has (dop) 2015-06-19
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-09-19
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61158-4-2:2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
Endorsement notice
The text of the International Standard IEC 61158-4-2:2014 was approved by CENELEC as a
European Standard without any modification.
In the official version, for bibliography, the following notes have to be added for the standards indicated:
IEC 61158-1:2014 NOTE Harmonised as EN 61158-1:2014
IEC 61158-2:2014 NOTE Harmonised as EN 61158-2:2014
IEC 61784-1:2014 NOTE Harmonised as EN 61784-1:2014
IEC 61784-2:2014 NOTE Harmonised as EN 61784-2:2014

- 3 - EN 61158-4-2 :2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61131-3 -  Programmable controllers - EN 61131-3 -
Part 3: Programming languages
IEC 61158-3-2 2014 Industrial communication networks - EN 61158-3-2 2014
Fieldbus specifications -
Part 3-2: Data-link layer service definition -
Type 2 elements
IEC 61158-5-2 2014 Industrial communication networks - EN 61158-5-2 2014
Fieldbus specifications --
Part 5-2: Application layer service definition -
Type 2 elements
IEC 61158-6-2 2014 Industrial communication networks - EN 61158-6-2 2014
Fieldbus specifications -
Part 6-2: Application layer protocol
specification - Type 2 elements
IEC 61588 2009 Precision clock synchronization protocol for - -
networked measurement and control
systems
IEC 61784-3-2 -  Industrial communication networks - Profiles E N 61784-3-2 -
Part 3-2: Functional safety fieldbuses -
Additional specifications for CPF 2
IEC 62026-3 2008 Low-voltage switchgear and controlgear - EN 62026-3 2009
Controller-device interfaces (CDIs)
Part 3: DeviceNet
ISO 11898 1993 Road vehicles - Interchange of digital - -
information - Controller area network (CAN)
for high-speed communication
ISO/IEC 3309 -  Information technology - - -
Telecommunications and information
exchange between systems - High-level data
link control (HDLC) procedures - Frame
structure
ISO/IEC 7498-1 -  Information technology - Open Systems - -
Interconnection - Basic reference model: The
basic model
Superseded by ISO 11898-1:2003 and ISO 11898-8:2003

EN 61158-4-2 :2014 - 4 -
Publication Year Title EN/HD Year
ISO/IEC 7498-3 -  Information technology - Open Systems - -
Interconnection - Basic reference model:
Naming and addressing
ISO/IEC 8802-3 -  Information technology - - -
Telecommunications and information
exchange between systems - Local and
metropolitan area networks - Specific
requirements
Part 3: Carrier sense multiple access with
collision detection (CSMA/CD) access
method and physical layer specifications
IEEE 802.1D 2004 IEEE Standard for local and metropolitan - -
area networks - Media Access Control
(MAC) Bridges
2)
IEEE 802.1Q 2005 IEEE Standard for Local and Metropolitan - -
Area Networks - Virtual Bridged Local Area
Networks
IEEE 802.3 2008 IEEE Standard for Information technology - - -
Telecommunications and information
exchange between systems - Local and
metropolitan area networks - Specific
requirements
Part 3: Carrier Sense Multiple Access with
Collision Detection (CSMA/CD) Access
Method and Physical Layer Specifications

2)
Superseded by IEEE 802.1Q:2011

IEC 61158-4-2 ®
Edition 3.0 2014-08
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 – Eléments

de type 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 25.04.40; 35.100.20; 35.110 ISBN 978-2-8322-1720-7

– 2 – IEC 61158-4-2:2014 © IEC 2014
CONTENTS
FOREWORD . 10
INTRODUCTION . 13
1 Scope . 15
1.1 General . 15
1.2 Specifications . 15
1.3 Procedures . 15
1.4 Applicability . 16
1.5 Conformance . 16
2 Normative references . 16
3 Terms, definitions, symbols, abbreviations and conventions . 17
3.1 Reference model terms and definitions . 17
3.2 Service convention terms and definitions . 19
3.3 Common terms and definitions . 20
3.4 Additional Type 2 definitions. 22
3.5 Type 2 symbols and abbreviations . 30
3.6 Conventions for station management objects . 31
4 Overview of the data-link protocol. 31
4.1 General . 31
4.2 Services provided by the DL . 34
4.3 Structure and definition of DL-addresses . 35
4.4 Services assumed from the PhL . 37
4.5 Functional classes . 39
5 General structure and encoding of PhIDUs and DLPDUs and related elements of
procedure . 40
5.1 Overview . 40
5.2 Media access procedure . 40
5.3 DLPDU structure and encoding . 44
5.4 Lpacket components . 48
5.5 DLPDU procedures . 50
5.6 Summary of DLL support services and objects . 51
6 Specific DLPDU structure, encoding and procedures . 53
6.1 Modeling language . 53
6.2 DLS user services . 55
6.3 Generic tag Lpacket . 61
6.4 Moderator Lpacket . 62
6.5 Time distribution Lpacket . 63
6.6 UCMM Lpacket . 66
6.7 Keeper UCMM Lpacket . 66
6.8 TUI Lpacket . 67
6.9 Link parameters Lpacket and tMinus Lpacket . 68
6.10 I’m-alive Lpacket . 70
6.11 Ping Lpackets. 71
6.12 WAMI Lpacket . 73
6.13 Debug Lpacket . 73
6.14 IP Lpacket . 74
6.15 Ethernet Lpacket . 74

IEC 61158-4-2:2014 © IEC 2014 – 3 –
7 Objects for station management . 74
7.1 General . 74
7.2 ControlNet object . 76
7.3 Keeper object . 86
7.4 Scheduling object . 108
7.5 TCP/IP Interface object . 119
7.6 Ethernet link object. 139
7.7 DeviceNet object . 149
7.8 Connection configuration object (CCO). 157
7.9 DLR object . 180
7.10 QoS object . 195
7.11 Port object . 198
8 Other DLE elements of procedure. 201
8.1 Network attachment monitor (NAM) . 201
8.2 Calculating link parameters . 209
9 Detailed specification of DL components . 218
9.1 General . 218
9.2 Access control machine (ACM) . 218
9.3 TxLLC . 238
9.4 RxLLC . 243
9.5 Transmit machine (TxM) . 247
9.6 Receive machine (RxM) . 251
9.7 Serializer . 257
9.8 Deserializer . 260
9.9 DLL management . 260
10 Device Level Ring (DLR) protocol . 262
10.1 General . 262
10.2 Supported topologies . 263
10.3 Overview of DLR operation . 264
10.4 Classes of DLR implementation . 267
10.5 DLR behavior . 268
10.6 Implementation requirements . 273
10.7 Using non-DLR nodes in the ring network . 275
10.8 Redundant gateway devices on DLR network . 278
10.9 DLR messages . 283
10.10 State diagrams and state-event-action matrices . 289
10.11 Performance analysis . 316
Annex A (normative) Indicators and switches . 322
A.1 Purpose . 322
A.2 Indicators . 322
A.2.1 General indicator requirements . 322
A.2.2 Common indicator requirements . 322
A.2.3 Fieldbus specific indicator requirements (1) . 324
A.2.4 Fieldbus specific indicator requirements (2) . 328
A.2.5 Fieldbus specific indicator requirements (3) . 331
A.3 Switches . 335
A.3.1 Common switch requirements . 335
A.3.2 Fieldbus specific switch requirements (1) . 336

– 4 – IEC 61158-4-2:2014 © IEC 2014
A.3.3 Fieldbus specific switch requirements (2) . 336
A.3.4 Fieldbus specific switch requirements (3) . 337
Bibliography . 338

Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses . 21
Figure 2 – Data-link layer internal architecture . 33
Figure 3 – Basic structure of a MAC ID address . 35
Figure 4 – Basic structure of a generic tag address . 35
Figure 5 – Basic structure of a fixed tag address . 36
Figure 6 – M_symbols and Manchester encoding at 5 MHz . 38
Figure 7 – NUT structure . 41
Figure 8 – Media access during scheduled time . 42
Figure 9 – Media access during unscheduled time . 43
Figure 10 – DLPDU format . 44
Figure 11 – Aborting a DLPDU during transmission . 48
Figure 12 – Lpacket format . 48
Figure 13 – Generic tag Lpacket format . 49
Figure 14 – Fixed tag Lpacket format . 50
Figure 15 – Goodness parameter of TimeDist_Lpacket . 64
Figure 16 – Example I’m alive processing algorithm . 71
Figure 17 – Keeper CRC algorithm . 92
Figure 18 – Keeper object power-up state diagram . 103
Figure 19 – Keeper object operating state diagram . 105
Figure 20 – Synchronized network change processing . 108
Figure 21 – State transition diagram for TCP/IP Interface object . 132
Figure 22 – State transition diagram for TCP/IP Interface object (continued) . 133
Figure 23 – ACD Behavior . 135
Figure 24 – State transition diagram for Ethernet Link object . 149
Figure 25 – Connection configuration object edit flowchart . 180
Figure 26 – NAM state machine . 202
Figure 27 – DLR rings connected to switches. 264
Figure 28 – Normal operation of a DLR network . 265
Figure 29 – Beacon and Announce frames . 265
Figure 30 – Link failure . 266
Figure 31 – Network reconfiguration after link failure . 267
Figure 32 – Neighbor Check process . 273
Figure 33 – Unsupported topology – example 1 . 277
Figure 34 – Unsupported topology – example 2 . 277
Figure 35 – DLR ring connected to switches through redundant gateways . 279
Figure 36 – DLR redundant gateway capable device . 280
Figure 37 – Advertise frame . 282
Figure 38 – State transition diagram for Beacon frame based non-supervisor ring node . 290
Figure 39 – State transition diagram for Announce frame based non-supervisor ring
node . 295

IEC 61158-4-2:2014 © IEC 2014 – 5 –
Figure 40 – State transition diagram for ring supervisor . 299
Figure 41 – State transition diagram for redundant gateway . 312
Figure A.1 – Non redundant network status indicator labeling . 328
Figure A.2 – Redundant network status indicator labeling . 328
Figure A.3 – Network status indicator state diagram . 331

Table 1 – Format of attribute tables . 31
Table 2 – Data-link layer components . 32
Table 3 – MAC ID addresses allocation . 35
Table 4 – Fixed tag service definitions . 36
Table 5 – Data encoding rules . 37
Table 6 – M Data symbols . 39
Table 7 – Truth table for ph_status_indication . 39
Table 8 – FCS length, polynomials and constants . 45
Table 9 – DLL support services and objects . 52
Table 10 – Elementary data types . 55
Table 11 – DLL events . 59
Table 12 – Time distribution priority . 65
Table 13 – Format of the TUI Lpacket . 67
Table 14 – ControlNet object class attributes . 76
Table 15 – ControlNet object instance attributes . 76
Table 16 – TUI status flag bits . 80
Table 17 – Mac_ver bits . 81
Table 18 – Channel state bits . 82
Table 19 – ControlNet object common services. 83
Table 20 – ControlNet object class specific services . 84
Table 21 – Keeper object revision history . 86
Table 22 – Keeper object class attributes . 87
Table 23 – Keeper object instance attributes . 87
Table 24 – Keeper operating state definitions . 90
Table 25 – Port status flag bit definitions . 90
Table 26 – TUI status flag bits . 91
Table 27 – Keeper attributes . 94
Table 28 – Memory requirements (in octets) for the Keeper attributes . 94
Table 29 – Keeper object common services . 95
Table 30 – Keeper object class specific services . 95
Table 31 – Service error codes . 96
Table 32 – Wire order format of the TUI Lpacket . 100
Table 33 – Service error codes . 101
Table 34 – Keeper object operating states . 101
Table 35 – Keeper object state event matrix . 105
Table 36 – Scheduling object class attributes . 109
Table 37 – Scheduling object instance attributes . 109

– 6 – IEC 61158-4-2:2014 © IEC 2014
Table 38 – Scheduling object common services . 110
Table 39 – Status error descriptions for Create . 111
Table 40 – Status error descriptions for Delete and Kick_Timer . 112
Table 41 – Scheduling object class specific services . 112
Table 42 – Status error descriptions for Read . 114
Table 43 – Status error descriptions for Conditional_Write . 115
Table 44 – Status error descriptions for Forced_Write . 115
Table 45 – Status error descriptions for Change_Start . 116
Table 46 – Status error descriptions for Break_Connections . 116
Table 47 – Status error descriptions for Change_Complete . 117
Table 48 – Status error descriptions for Restart_Connections . 118
Table 49 – Revision history . 119
Table 50 – TCP/IP Interface object class attributes . 120
Table 51 – TCP/IP Interface object instance attributes . 120
Table 52 – Status bits . 123
Table 53 – Configuration capability bits . 124
Table 54 – Configuration control bits . 124
Table 55 – Example path . 125
Table 56 – Interface configuration components . 126
Table 57 – Alloc control values . 128
Table 58 – AcdActivity values . 129
Table 59 – ArpPdu - ARP Response PDU in binary format . 129
Table 60 – TCP/IP Interface object common services . 130
Table 61 – Get_Attribute_All reply format . 130
Table 62 – Ethernet link object revision history . 139
Table 63 – Ethernet link object class attributes . 140
Table 64 – Ethernet link object instance attributes . 140
Table 65 – Interface flags bits . 143
Table 66 – Control bits . 145
Table 67 – Interface type . 145
Table 68 – Interface state . 146
Table 69 – Admin state . 146
Table 70 – Ethernet Link object common services . 146
Table 71 – Get_Attribute_All reply format . 147
Table 72 – Ethernet Link object class specific services . 148
Table 73 – DeviceNet object revision history . 150
Table 74 – DeviceNet object class attributes . 150
Table 75 – DeviceNet object instance attributes . 150
Table 76 – Bit rate attribute values . 152
Table 77 – BOI attribute values . 153
Table 78 – Diagnostic counters bit description . 155
Table 79 – DeviceNet object common services . 156
Table 80 – Reset service parameter . 156

IEC 61158-4-2:2014 © IEC 2014 – 7 –
Table 81 – Reset service parameter values . 156
Table 82 – DeviceNet object class specific services . 157
Table 83 – Connection configuration object revision history . 158
Table 84 – Connection configuration object class attributes . 158
Table 85 – Format number values . 159
Table 86 – Connection configuration object instance attributes . 160
Table 87 – Originator connection status values . 164
Table 88 – Target connection status values . 164
Table 89 – Connection flags . 165
Table 90 – I/O mapping formats . 167
Table 91 – Services valid during a change operation . 169
Table 92 – Connection configuration object common services . 169
Table 93 – Get_Attribute_All Response – class level . 170
Table 94 – Get_Attribute_All response – instance level. 170
Table 95 – Set_Attribute_All error codes . 172
Table 96 – Set_Attribute_All request . 172
Table 97 – Create request parameters . 174
Table 98 – Create error codes . 174
Table 99 – Delete error codes . 175
Table 100 – Restore error codes . 175
Table 101 – Connection configuration object class specific services . 175
Table 102 – Change_Start error codes . 177
Table 103 – Get_Status service parameter . 177
Table 104 – Get_Status service response . 177
Table 105 – Get_Status service error codes . 178
Table 106 – Change_Complete service parameter . 178
Table 107 – Change_Complete service error codes . 178
Table 108 – Audit_Changes service parameter . 179
Table 109 – Audit_Changes service error codes . 179
Table 110 – Revision history . 181
Table 111 – DLR object class attributes . 181
Table 112 – DLR object instance attributes . 181
Table 113 – Network Status values . 185
Table 114 – Ring Supervisor Status values . 185
Table 115 – Capability flags . 188
Table 116 – Redundant Gateway Status values . 190
Table 117 – DLR object common services . 191
Table 118 – Get_Attribute_All Response – Object Revision 1, non supervisor device . 191
Table 119 – Get_Attribute_All Response – Object Revision 1, supervisor-capable
device . 192
Table 120 – Get_Attribute_All Response – Object Revision 2, non supervisor device . 192
Table 121 – Get_Attribute_All Response – All other cases . 193
Table 122 – DLR object class specific services . 194

– 8 – IEC 61158-4-2:2014 © IEC 2014
Table 123 – QoS object revision history . 195
Table 124 – QoS object class attributes . 195
Table 125 – QoS object instance attributes . 196
Table 126 – Default DCSP values and usages . 197
Table 127 – QoS object common services . 197
Table 128 – Port object class attributes . 198
Table 129 – Port object instance attributes . 199
Table 130 – Port object common services . 201
Table 131 – NAM states . 201
Table 132 – Default link parameters. 202
Table 133 – PhL timing characteristics . 210
Table 134 – DLR variables . 268
Table 135 – Redundant gateway variables . 281
Table 136 – MAC addresses for DLR messages . 283
Table 137 – IEEE 802.1Q common frame header format . 284
Table 138 –DLR message payload fields . 284
Table 139 – DLR frame types . 284
Table 140 – Format of the Beacon frame . 285
Table 141 – Ring State values .
...