IEC 61158-2:2023

Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition

IEC 61158-2:2023 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the "three-layer" fieldbus reference model described in IEC 61158‑1.

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 2: Spécification et définition des services de la couche physique

L'IEC 61158-2:2023 constitue une partie d'une série produite pour faciliter l'interconnexion de composants d'un système d'automation. Elle est liée à d'autres normes de la série telle qu'elle est définie par le modèle de référence des bus de terrain "à trois couches" décrit dans le rapport IEC 61158‑1.

General Information

• Status: Published
• Publication Date: 08-Mar-2023
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.20 - Data link layer
• ICS: 35.240.50 - IT applications in industry
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 9 - TC 65/SC 65C/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 31-Mar-2023
• Completion Date: 09-Mar-2023

Relations

• Revises: IEC 61158-2:2014 - Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61158-2 ®
Edition 7.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 2: Physical layer specification and service definition

Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 2: Spécification et définition des services de la couche physique

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IEC 61158-2 ®
Edition 7.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Fieldbus specifications –

Part 2: Physical layer specification and service definition

Réseaux de communication industriels – Spécifications des bus de terrain –

Partie 2: Spécification et définition des services de la couche physique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.20; 35.240.50 ISBN 978-2-8322-6552-9

– 2 – IEC 61158-2:2023 © IEC:2023
CONTENTS
FOREWORD . 36
0 INTRODUCTION . 38
0.1 General . 38
0.2 Physical layer overview . 38
0.3 Document overview . 38
0.4 Major physical layer variations specified in this document . 39
0.4.1 Type 1 media . 39
0.4.1.1 Type 1: Wire media . 39
0.4.1.2 Type 1: Optical media . 39
0.4.2 Type 2: Coaxial wire and optical media . 39
0.4.3 Type 3: Twisted-pair wire and optical media . 39
0.4.4 Type 4: Wire medium . 40
0.4.5 Type 8: Twisted-pair wire and optical media . 40
0.4.6 Type 12: Wire medium . 40
0.4.7 Type 16: optical media . 40
0.4.8 Type 18: Media . 40
0.4.8.1 Type 18: Basic media. 40
0.4.8.2 Type 18: Powered media . 40
0.4.9 Type 20: Media . 41
0.4.10 Type 24: Media . 41
0.4.10.1 Type 24: Basic media . 41
0.4.10.2 Type 24: Powered media . 41
0.4.11 Type 28: Media . 41
0.5 Patent declaration . 41
1 Scope . 43
2 Normative references . 43
3 Terms and definitions . 46
3.1 Common terms and definitions . 46
3.2 Type 1: Terms and definitions . 50
3.3 Type 2: Terms and definitions . 53
3.4 Type 3: Terms and definitions . 57
3.5 Type 4: Terms and definitions . 60
3.6 Void . 61
3.7 Type 8: Terms and definitions . 61
3.8 Type 12: Terms and definitions . 64
3.9 Type 16: Terms and definitions . 64
3.10 Type 18: Terms and definitions . 67
3.11 Type 24: Terms and definitions . 68
3.12 Type 20: Terms and definitions . 70
3.13 Type 28: Terms and definitions . 72
4 Symbols and abbreviated terms . 74
4.1 Symbols . 74
4.1.1 Type 1: Symbols . 74
4.1.2 Type 2: Symbols . 75
4.1.3 Type 3: Symbols . 76
4.1.4 Type 4: Symbols . 76
4.1.5 Void . 76

4.1.6 Type 8: Symbols . 76
4.1.7 Type 12: Symbols . 77
4.1.8 Type 16: Symbols . 77
4.1.9 Type 18: Symbols . 77
4.1.10 Type 24: Symbols . 78
4.1.11 Type 20: Symbols . 78
4.1.12 Type 28: Symbols . 78
4.2 Abbreviated terms . 79
4.2.1 Type 1: Abbreviations . 79
4.2.2 Type 2: Abbreviations . 80
4.2.3 Type 3: Abbreviations . 80
4.2.4 Type 4: Abbreviations . 82
4.2.5 Void . 82
4.2.6 Type 8: Abbreviations . 82
4.2.7 Type 12: Abbreviations . 84
4.2.8 Type 16: Abbreviations . 84
4.2.9 Type 18: Abbreviations . 84
4.2.10 Type 24: Abbreviations . 85
4.2.11 Type 20: Abbreviations . 85
4.2.12 Type 28: Abbreviations . 85
5 DLL – PhL interface . 86
5.1 General . 86
5.2 Type 1: Required services . 87
5.2.1 Primitives of the PhS . 87
5.2.2 Notification of PhS characteristics . 88
5.2.3 Transmission of Ph-user-data . 89
5.2.4 Reception of Ph-user-data . 89
5.3 Type 2: Required services . 89
5.3.1 General . 89
5.3.2 M_symbols . 89
5.3.3 PH-LOCK indication . 90
5.3.4 PH-FRAME indication . 90
5.3.5 PH-CARRIER indication . 90
5.3.6 PH-DATA indication . 90
5.3.7 PH-STATUS indication . 90
5.3.8 PH-DATA request . 91
5.3.9 PH-FRAME request . 91
5.3.10 PH-JABBER indication . 91
5.3.11 Ph-JABBER-CLEAR request . 91
5.3.12 Ph-JABBER-TYPE request . 91
5.4 Type 3: Required services . 92
5.4.1 Synchronous transmission . 92
5.4.2 Asynchronous transmission . 92
5.5 Type 4: Required services . 93
5.5.1 General . 93
5.5.2 Primitives of the PhS . 93
5.5.3 Transmission of Ph-user data . 94
5.6 Void . 94
5.7 Type 8: Required services . 95

– 4 – IEC 61158-2:2023 © IEC:2023
5.7.1 General . 95
5.7.2 Primitives of the PhS . 95
5.7.3 Overview of the Interactions . 96
5.8 Type 12: Required services . 102
5.9 Type 16: Required services . 103
5.9.1 Primitives of the PhS . 103
5.9.2 Transmission of Ph-user-data . 103
5.9.3 Reception of Ph-user-data . 104
5.10 Type 18: Required services . 104
5.10.1 General . 104
5.10.2 Primitives of the PhS . 104
5.10.3 Transmission of Ph-user-data . 105
5.10.4 Reception of Ph-user-data . 105
5.11 Type 24: Required services . 105
5.11.1 General . 105
5.11.2 DL_Symbols . 106
5.11.3 PLS_CARRIER indication . 106
5.11.4 PLS_SIGNAL indication . 106
5.11.5 PLS_DATA_VALID indication . 106
5.11.6 PLS_DATA indication . 106
5.11.7 PLS_DATA request . 106
5.12 Type 20: Required services . 106
5.12.1 Facilities of the physical layer services . 106
5.12.2 Sequence of primitives . 107
5.12.3 PH-START service . 107
5.12.4 PH-DATA service . 108
5.12.5 PH-END service . 108
5.13 Type 28: Required services . 109
5.13.1 General . 109
5.13.2 Ph-Param (para, value). 109
5.13.3 Ph-Data (length, data, status) . 110
5.13.4 Ph-Clock-Sync (command, data, ofdmtiming) . 111
6 Systems management – PhL interface . 112
6.1 General . 112
6.2 Type 1: Systems management – PhL interface . 112
6.2.1 Required services . 112
6.2.2 Service primitive requirements . 112
6.3 Type 3: Systems management – PhL interface . 114
6.3.1 Synchronous transmission . 114
6.3.2 Asynchronous transmission . 114
6.4 Type 4: Systems management – PhL interface . 119
6.4.1 Required Services . 119
6.4.2 Service primitive requirements . 120
6.5 Void . 120
6.6 Type 8: Systems management – PhL interface . 120
6.6.1 Functionality of the PhL Management . 120
6.6.2 PhL-PNM1 Interface . 120
6.7 Type 12: Systems management – PhL interface . 125
6.8 Type 18: Systems management – PhL interface . 125

6.8.1 General . 125
6.8.2 Required services . 125
6.8.3 Service primitive requirements . 125
6.9 Type 24: Systems management – PhL interface . 126
6.10 Type 28: Systems management – PhL interface . 126
6.10.1 General . 126
6.10.2 PhL related management information table . 126
6.10.3 Service primitive . 132
7 DCE independent sublayer (DIS) . 135
7.1 General . 135
7.2 Type 1: DIS . 136
7.3 Type 3: DIS . 136
7.3.1 Synchronous transmission . 136
7.3.2 Asynchronous transmission . 136
7.4 Void . 136
7.5 Type 8: DIS . 136
7.5.1 General . 136
7.5.2 Function . 136
7.5.3 Serial transmission . 136
7.5.4 MDS coupling . 137
7.6 Type 12: DIS . 138
7.7 Type 28: DIS . 138
8 DTE – DCE interface and MIS-specific functions . 138
8.1 General . 138
8.2 Type 1: DTE – DCE interface . 139
8.2.1 Services . 139
8.2.2 Signaling interfaces . 140
8.3 Type 3: DTE – DCE interface . 149
8.3.1 Synchronous transmission . 149
8.3.2 Asynchronous transmission . 149
8.4 Type 8: MIS – MDS interface . 150
8.4.1 General . 150
8.4.2 Services . 150
8.4.3 Interface signals . 151
8.4.4 Converting the services to the interface signals . 152
8.5 Type 12: DTE – DCE interface . 159
8.6 Type 28: DTE – DCE interface and MIS Specific function . 159
8.6.1 General . 159
8.6.2 MIS Specific function . 159
8.6.3 DTE – DCE interface . 166
9 Medium dependent sublayer (MDS) . 168
9.1 General . 168
9.2 Type 1: MDS: Wire and optical media . 168
9.2.1 PhPDU . 168
9.2.2 Encoding and decoding . 168
9.2.3 Polarity detection . 170
9.2.4 Start of frame delimiter . 170
9.2.5 End of frame delimiter . 170
9.2.6 Preamble . 170

– 6 – IEC 61158-2:2023 © IEC:2023
9.2.7 Synchronization . 171
9.2.8 Post-transmission gap . 171
9.2.9 Inter-channel signal skew . 171
9.3 Void . 171
9.4 Type 2: MDS: Wire and optical media . 172
9.4.1 General . 172
9.4.2 Clock accuracy . 172
9.4.3 Data recovery . 172
9.4.4 Data encoding rules . 172
9.5 Type 3: MDS: Wire and optical media . 173
9.5.1 Synchronous transmission . 173
9.5.2 Asynchronous transmission . 173
9.6 Type 4: MDS: Wire medium . 173
9.6.1 Half-duplex . 173
9.6.2 Full-duplex . 175
9.6.3 Full-duplex UDP . 177
9.7 Void . 178
9.8 Type 8: MDS: Wire and optical media . 178
9.8.1 Function . 178
9.8.2 PhPDU formats . 179
9.8.3 Idle states . 183
9.8.4 Reset PhPDU . 183
9.8.5 MAU coupling . 184
9.9 Type 12: MDS: Wire media . 185
9.10 Type 16: MDS: Optical media . 185
9.10.1 Data encoding rules . 185
9.10.2 Telegrams and fill characters . 186
9.11 Type 18: MDS: Wire media . 186
9.11.1 Overview . 186
9.11.2 Transmission . 187
9.11.3 Reception . 187
9.12 Type 24: MDS: Twisted-pair wire . 187
9.12.1 General . 187
9.12.2 Clock accuracy . 187
9.12.3 Data recovery . 188
9.12.4 Data encoding rules . 188
9.13 Type 28: MDS: Twisted-pair wire and coaxial media . 189
9.13.1 General . 189
9.13.2 MDS specification . 189
10 MDS – MAU interface . 196
10.1 General . 196
10.2 Type 1: MDS – MAU interface: Wire and optical media . 197
10.2.1 Services . 197
10.2.2 Service specifications . 197
10.2.3 Signal characteristics. 197
10.2.4 Communication mode . 198
10.2.5 Timing characteristics . 198
10.3 Void . 198
10.4 Type 2: MDS – MAU interface: Wire and optical media . 198

10.4.1 MDS – MAU interface: general . 198
10.4.2 MDS – MAU interface: 5 Mbit/s, voltage-mode, coaxial wire . 199
10.4.3 MDS – MAU interface 5 Mbit/s, optical medium . 199
10.4.4 MDS – MAU interface Network Access Port (NAP) . 200
10.5 Type 3: MDS – MAU interface: Wire and optical media . 200
10.5.1 Synchronous transmission . 200
10.5.2 Asynchronous transmission . 201
10.6 Type 8: MDS – MAU interface: Wire and optical media . 201
10.6.1 Overview of the services . 201
10.6.2 Description of the services . 201
10.6.3 Time response . 202
10.6.4 Transmission mode . 202
10.7 Type 18: MDS – MAU interface: Wire media . 203
10.7.1 General . 203
10.7.2 Services . 203
10.7.3 Service specifications . 203
10.7.4 Signal characteristics. 203
10.7.5 Communication mode . 204
10.7.6 Timing characteristics . 204
10.8 Type 24: MDS – MAU interface: Twisted-pair wire medium . 204
10.8.1 Overview of service . 204
10.8.2 Description of the services . 204
10.9 Type 28: MDS – MAU interface: Twisted-pair wire and coaxial media . 205
10.9.1 General . 205
10.9.2 Services . 205
10.9.3 Service process . 206
10.9.4 Service specifications . 206
10.9.5 Transmit specifications . 207
11 Types 1 and 7: Medium attachment unit: voltage mode, linear-bus-topology 150 Ω

twisted-pair wire medium . 208
11.1 General . 208
11.2 Bit-rate-dependent quantities . 208
11.3 Network specifications . 209
11.3.1 Components . 209
11.3.2 Topologies . 209
11.3.3 Network configuration rules . 210
11.3.4 Power distribution rules for network configuration . 211
11.4 MAU transmit circuit specification . 211
11.4.1 Summary . 211
11.4.2 MAU test configuration . 212
11.4.3 MAU output level requirements . 213
11.4.4 MAU output timing requirements . 214
11.4.5 Signal polarity . 215
11.5 MAU receive circuit specification. 216
11.5.1 Summary . 216
11.5.2 Input impedance . 216
11.5.3 Receiver sensitivity and noise rejection . 217
11.5.4 Received bit cell jitter . 217
11.5.5 Interference susceptibility and error rates . 217

– 8 – IEC 61158-2:2023 © IEC:2023
11.6 Jabber inhibit . 218
11.7 Power distribution . 218
11.7.1 Overview . 218
11.7.2 Supply voltage . 219
11.7.3 Powered via signal conductors . 219
11.7.4 Powered separately from signal conductors . 220
11.7.5 Electrical isolation . 220
11.8 Medium specifications . 221
11.8.1 Connector . 221
11.8.2 Standard test cable . 221
11.8.3 Coupler. 222
11.8.4 Splices . 222
11.8.5 Terminator . 222
11.8.6 Shielding rules . 222
11.8.7 Grounding (earthing) rules . 223
11.8.8 Color coding of cables . 223
12 Types 1 and 3: Medium attachment unit: 31,25 kbit/s, voltage-mode with low-

power option, bus- and tree-topology, 100 Ω wire medium . 223
12.1 General . 223
12.2 Transmitted bit rate . 224
12.3 Network specifications . 224
12.3.1 Components . 224
12.3.2 Topologies . 224
12.3.3 Network configuration rules . 225
12.3.4 Power distribution rules for network configuration . 226
12.4 MAU transmit circuit specification . 227
12.4.1 Summary . 227
12.4.2 MAU test configuration . 227
12.4.3 MAU output level requirements . 227
12.4.4 Output timing requirements . 228
12.4.5 Signal polarity . 229
12.4.6 Transition from receive to transmit . 229
12.5 M
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