IEC 61784-2:2007

IEC 61784-2 ®
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –
Part 2: Additional fieldbus profiles for real-time networks based on
ISO/IEC 8802-3
Réseaux de communication industriels – Profils –
Partie 2: Profils supplémentaires des bus de terrain pour les réseaux temps
réel basés sur l’ISO/CEI 8802-3

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IEC 61784-2 ®
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – Profiles –

Part 2: Additional fieldbus profiles for real-time networks based on

ISO/IEC 8802-3
Réseaux de communication industriels – Profils –

Partie 2: Profils supplémentaires des bus de terrain pour les réseaux temps

réel basés sur l’ISO/CEI 8802-3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-1917-1

– 2 – IEC 61784-2:2007 © IEC 2007
CONTENTS
FOREWORD . 11
INTRODUCTION . 13
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 17
3.1 Terms and definitions . 17
3.2 Abbreviated terms and acronyms . 20
3.3 Symbols . 22
3.3.1 CPF 2 symbols . 22
3.3.2 CPF 3 symbols . 23
3.3.3 CPF 4 symbols . 24
3.3.4 CPF 6 symbols . 24
3.3.5 CPF 10 symbols . 25
3.3.6 CPF 11 symbols . 26
3.3.7 CPF 12 symbols . 27
3.3.8 CPF 13 symbols . 27
3.3.9 CPF 14 symbols . 28
3.3.10 CPF 15 symbols . 29
3.3.11 CPF 16 symbols . 29
3.4 Conventions . 30
3.4.1 Conventions common to all layers . 30
3.4.2 Physical Layer . 31
3.4.3 Data Link Layer . 31
3.4.4 Application Layer . 32
4 Conformance to communication profiles . 32
5 RTE performance indicators . 33
5.1 Basic principles of performance indicators . 33
5.2 Application requirements . 34
5.3 Performance indicators . 34
5.3.1 Delivery time . 34
5.3.2 Number of RTE end-stations . 35
5.3.3 Basic network topology . 35
5.3.4 Number of switches between RTE end-stations . 35
5.3.5 Throughput RTE . 35
5.3.6 Non-RTE bandwidth . 35
5.3.7 Time synchronization accuracy . 35
5.3.8 Non-time-based synchronization accuracy . 36
5.3.9 Redundancy recovery time . 36
6 Conformance tests . 36
6.1 Concept . 36
6.2 Methodology . 37
6.3 Test conditions and test cases . 37
6.4 Test procedure and measuring . 38
6.5 Test report . 38
7 Communication Profile Family 2 (CIP™) – RTE communication profiles. 39

7.1 General overview . 39
7.2 Profile 2/2 . 39
7.2.1 Physical Layer . 39
7.2.2 Data Link Layer . 39
7.2.3 Application Layer . 39
7.2.4 Performance indicator selection . 39
7.3 Profile 2/2.1 . 43
7.3.1 Physical Layer . 43
7.3.2 Data Link Layer . 44
7.3.3 Application Layer . 45
7.3.4 Performance indicator selection . 46
8 Communication Profile Family 3 (PROFIBUS & PROFINET) – RTE communication
profiles . 49
8.1 General overview . 49
8.1.1 CPF 3 overview . 49
8.1.2 Node Classes . 49
8.1.3 Application classes . 51
8.1.4 Communication classes . 51
8.1.5 Redundancy classes . 51
8.1.6 Media classes . 52
8.1.7 Conformance class behaviors . 52
8.2 Profile 3/4 . 55
8.2.1 Physical layer . 55
8.2.2 Data link layer . 55
8.2.3 Application layer . 56
8.2.4 Performance indicator selection . 61
8.3 Profile 3/5 . 68
8.3.1 Physical layer . 68
8.3.2 Data link layer . 68
8.3.3 Application layer . 69
8.3.4 Performance indicator selection . 73
8.4 Profile 3/6 . 75
8.4.1 Physical layer . 75
8.4.2 Data link layer . 75
8.4.3 Application layer . 76
8.4.4 Performance indicator selection . 81
9 Communication Profile Family 4 (P-NET) – RTE communication profiles . 83
9.1 General overview . 83
9.2 Profile 4/3, P-NET on IP . 83
9.2.1 Physical Layer . 83
9.2.2 Data Link Layer . 83
9.2.3 Application Layer . 84
9.2.4 Performance indicator selection . 85
10 Communication Profile Family 6 (INTERBUS®) – RTE communication profiles . 89
10.1 General overview . 89
10.2 Profile 6/4 . 90
10.2.1 Mapping . 90
10.2.2 Type 10 service and protocol selection . 91
10.2.3 Type 8 service and protocol selection . 92

– 4 – IEC 61784-2:2007 © IEC 2007
10.2.4 Performance indicator selection . 92
10.3 Profile 6/5 . 93
10.3.1 Mapping . 93
10.3.2 Type 10 service and protocol selection . 93
10.3.3 Type 8 service and protocol selection . 93
10.3.4 Performance indicator selection . 94
10.4 Profile 6/6 . 94
10.4.1 Mapping . 94
10.4.2 Type 10 service and protocol selection . 94
10.4.3 Type 8 service and protocol selection . 95
10.4.4 Performance indicator selection . 95
11 Communication Profile Family 10 (Vnet/IP) – RTE communication profiles . 96
11.1 General overview . 96
11.2 Profile 10/1 . 97
11.2.1 Physical Layer . 97
11.2.2 Data Link Layer . 97
11.2.3 Application Layer . 99
11.2.4 Performance indicator selection . 100
12 Communication Profile Family 11 (TCnet) – RTE communication profiles . 106
12.1 General overview . 106
12.2 Profile 11/1 . 106
12.2.1 Physical Layer . 106
12.2.2 Data Link Layer . 106
12.2.3 Application Layer . 107
12.2.4 Performance indicator selection . 108
13 Communication Profile Family 12 (EtherCAT) – RTE communication profiles . 114
13.1 General overview . 114
13.2 Profile CP 12/1 . 114
13.2.1 Physical Layer . 114
13.2.2 Data Link Layer . 115
13.2.3 Application Layer . 119
13.2.4 Performance indicator selection . 121
13.3 Profile CP 12/2 . 124
13.3.1 Physical Layer . 124
13.3.2 Data Link Layer . 124
13.3.3 Application Layer . 128
13.3.4 Performance indicator selection . 130
14 Communication Profile Family 13 (ETHERNET Powerlink) – RTE communication
profiles . 133
14.1 General overview . 133
14.2 Profile 13/1 . 133
14.2.1 Physical Layer . 133
14.2.2 Data Link Layer . 133
14.2.3 Application Layer . 134
14.2.4 Performance indicator selection . 134
15 Communication Profile Family 14 (EPA)- RTE communication profiles . 140
15.1 General overview . 140
15.2 CPF 14 (EPA) communication concept . 140

15.2.1 General . 140
15.2.2 Network Topology . 140
15.2.3 EPA devices . 141
15.3 Profile 14/1 . 142
15.3.1 Physical Layer . 142
15.3.2 Data Link Layer . 142
15.3.3 Network Layer . 142
15.3.4 Transport Layer . 142
15.3.5 Application Layer . 142
15.3.6 Performance indicator selection . 144
15.4 Profile 14/2 . 147
15.4.1 Physical Layer . 147
15.4.2 Data Link Layer . 147
15.4.3 Network Layer . 147
15.4.4 Transport Layer . 148
15.4.5 Application Layer . 148
15.4.6 Performance indicator selection . 149
16 Communication Profile Family 15 (MODBUS-RTPS)- RTE communication profiles . 153
16.1 General overview . 153
16.2 Profile 15/1 . 153
16.2.1 Physical layer . 153
16.2.2 Data link layer . 153
16.2.3 Application layer . 153
16.2.4 Performance indicator selection . 154
16.3 Profile 15/2 . 158
16.3.1 Physical layer . 158
16.3.2 Data link layer . 158
16.3.3 Application layer . 158
16.3.4 Performance indicator selection . 159
17 Communication Profile Family 16 (SERCOS)- RTE communication profiles . 164
17.1 General overview . 164
17.2 Profile 16/3 (SERCOS III) . 164
17.2.1 Physical Layer . 164
17.2.2 Data Link Layer . 164
17.2.3 Application Layer . 165
17.2.4 Performance indicator selection . 165
Annex A (informative) Performance Indicator calculation . 172
A.1 CPF 2 (CIP) – Performance indicator calculation . 172
A.1.1 Profile 2/2 EtherNet/IP . 172
A.1.2 Profile 2/2.1 EtherNet/IP with Time Synchronization . 173
A.2 Communication Profile Family 3 – Performance indicator calculation . 174
A.2.1 Application Scenario . 174
A.2.2 Structural examples used for calculation . 174
A.2.3 Principles used for calculation . 179
A.3 CPF 4/3 P-NET on IP – Performance indicator calculation . 182
A.3.1 Application scenario . 182
A.3.2 Delivery time calculation . 182
A.3.3 Non-RTE throughput calculation . 183

– 6 – IEC 61784-2:2007 © IEC 2007
A.3.4 Non time-base synchronization accuracy . 185
A.3.5 RTE throughput calculation . 186
A.3.6 CPF 4/3, Derivation of delivery time formula . 186
A.3.7 CPF 4/3, Ethernet characteristics . 188

Bibliography . 189

Figure 1 – Example of graphical representation of consistent indicators 34
Figure 2 – Conformance test overview . 36
Figure 3 – Example of network topology using CP 3/4, CP 3/5, and CP 3/6 components . 55
Figure 4 – Example of network topology with wireless segment . 58
Figure 5 – Calculation basis for delivery time and throughput RTE . 64
Figure 6 – Linking-device communication profiles RTE-network context . 89
Figure 7 – Linking-device mapping principle . 90
Figure 8 – Data Mapping . 91
Figure 9 – Throughput RTE and non-RTE bandwidth . 111
Figure 10－ EPA system network topology example . 141
Figure A.1 – CP 3/4: Example of line structure . 174
Figure A.2 – CP 3/4: Example of ring structure . 174
Figure A.3 – CP 3/4: Example of a wireless segment . 175
Figure A.4 – CP 3/4: Example of an integrated wireless client . 175
Figure A.5 – CP 3/5: Example of line structure . 176
Figure A.6 – CP 3/5: Example of ring structure . 176
Figure A.7 – CP 3/6: Example of line structure . 177
Figure A.8 – CP 3/6: Example of ring structure . 178
Figure A.9 – CP 3/6: Example of tree structure . 179
Figure A.10 – Definition of bridge delay . 180
Figure A.11 – Example of a switch structure . 181
Figure A.12 – Application Configuration . 182
Figure A.13 – Non-RTE throughput calculation . 184
Figure A.14 – Non time-base synchronization accuracy . 185

Table 1 – Layout of profile (sub)clause selection tables . 30
Table 2 – Contents of (sub)clause selection tables . 30
Table 3 – Layout of service selection tables . 30
Table 4 – Contents of service selection tables . 31
Table 5 – Layout of parameter selection tables . 31
Table 6 – Contents of parameter selection tables . 31
Table 7 – Layout of class attribute selection tables . 32
Table 8 – Contents of class attribute selection tables . 32
Table 9 – Basic network topology types . 35
Table 10 – CP 2/2: performance indicator overview . 40
Table 11 – CP 2/2: Performance indicator dependency matrix . 40
Table 12 – CP 2/2: consistent set of performance indicators for factory automation . 43

Table 13 – CP 2/2.1: DLL protocol selection . 44
Table 14 – CP 2/2.1: DLL protocol selection of management objects . 44
Table 15 – CP 2/2.1: AL service selection . 45
Table 16 – CP 2/2.1: AL protocol selection . 46
Table 17 – CP 2/2.1: performance indicator overview . 47
Table 18 – CP 2/2.1: performance indicator dependency matrix . 47
Table 19 – CP 2/2.1: Consistent set of performance indicators for motion control . 48
Table 20 – Timeout values for name resolution . 50
Table 21 – Reaction time for an IO device . 50
Table 22 – Redundancy class applicable in conformance classes . 52
Table 23 – Conformance class behaviors . 52
Table 24 – Conformance class behaviors for network components . 54
Table 25 – CP 3/4: AL service selection for an IO device . 56
Table 26 – CP 3/4: AL protocol selection for an IO device and Network component . 59
Table 27 – CP 3/4: AL protocol selection for an IO controller . 60
Table 28 – CP 3/4, CP 3/5 and CP 3/6: performance indicator overview . 61
Table 29 – CP 3/4, CP 3/5 and CP 3/6: performance indicator dependency matrix . 62
Table 30 – Manager parameters . 65
Table 31 – Client parameters . 66
Table 32 – Client parameters . 66
Table 33 – CP 3/4: Consistent set of PI for MinDeviceInterval=128ms . 67
Table 34 – CP 3/4: Assumed values for consistent set of PI calculation . 68
Table 35 – CP 3/5: AL service selection for an IO device . 69
Table 36 – CP 3/5: AL protocol selection for an IO device and Network component . 71
Table 37 – CP 3/5: AL protocol selection for an IO controller . 72
Table 38 – CP 3/5: Consistent set of PI for MinDeviceInterval=128ms . 74
Table 39 – CP 3/5: Assumed values for consistent set of PI calculation . 75
Table 40 – CP 3/6: AL service selection for an IO device . 76
Table 41 – Buffering capacity . 77
Table 42 – CP 3/6: AL protocol selection for an IO device and network component . 78
Table 43 – CP 3/6: AL protocol selection for an IO controller . 80
Table 44 – CP 3/6: Consistent set of PI for MinDeviceInterval=1ms . 81
Table 45 – CP 3/6: Assumed values for consistent set of PI calculation . 82
Table 46 – CP 4/3: DLL service selection . 84
Table 47 – CP 4/3: DLL protocol selection . 84
Table 48 – CP 4/3: AL service selection . 84
Table 49 – CP 4/3: AL protocol selection . 85
Table 50 – CP 4/3: Performance indicator overview . 85
Table 51 – CP 4/3: Performance indicator dependency matrix . 85
Table 52 – CP 4/3: Consistent set of performance indicators . 88
Table 53 – Parameters for Calculation of Consistent set of performance indicators . 88
Table 54 – CPF 6: device CP identifier assignment . 90
Table 55 – Linking-device Type 10 network performance indicator overview . 92

– 8 – IEC 61784-2:2007 © IEC 2007
Table 56 – OSI layers and CPF 10 layers . 96
Table 57 – Overview of CPF 10 profile . 97
Table 58 – CP 10/1: DLL service selection . 98
Table 59 – CP 10/1: DLL protocol selection . 98
Table 60 – Transport Layer Parameter selection . 99
Table 61 – CP 10/1: AL service selection . 100
Table 62 – CP 10/1: AL protocol selection . 100
Table 63 – CP 10/1: Performance indicator overview . 100
Table 64 – CP 10/1: Performance indicator dependency matrix. 101
Table 65 – CP 10/1: Consistent set of performance indicators for the communication
between two end-stations belonging to the same domain . 104
Table 66 – CP 10/1: Consistent set of performance indicators for the communication
between two end-stations belonging to different domains . 104
Table 67 – CP 10/1: Consistent set of performance indicators for the communication
between two end-stations belonging to the same domain with one lost flame . 105
Table 68 – CP 10/1: Consistent set of performance indicators for the communication
between two end-stations belonging to different domains with one lost flame . 105
Table 69 – CPF 11: Overview of profile sets . 106
Table 70 – CP 11/1: DLL service selection . 107
Table 71 – CP 11/1: DLL protocol selection . 107
Table 72 – CP 11/1: AL service selection . 108
Table 73 – CP 11/1: AL protocol selection . 108
Table 74 – CP 11/1: Performance indicator overview . 108
Table 75 – CP 11/1: Performance indicator dependency matrix. 109
Table 76 – CP 11/1: TCC data service selection . 110
Table 77 – CP 11/1: Consistent set of PIs preferential for RTE communications . 113
Table 78 – CP 11/1: Consistent set of PIs both for RTE and non-RTE communications . 113
Table 79 – CP 12/1: PhL selection of preferred physical layer . 115
Table 80 – CP 12/1: PhL selection of an optimized physical layer . 115
Table 81 – CP 12/1: DLL service selection . 116
Table 82 – CP 12/1: DLL protocol selection . 117
Table 83 – CP 12/1: DLL service selection . 118
Table 84 – CP 12/1: DLL protocol selection . 119
Table 85 – CP 12/1: AL service selection . 120
Table 86 – CP 12/1: AL protocol selection . 120
Table 87 – CP 12/1: AL service selection . 121
Table 88 – CP 12/1: AL protocol selection . 121
Table 89 – CP 12/1: Performance indicator overview . 122
Table 90 – CP 12/1: Performance indicator dependency matrix. 122
Table 91 – CP 12/1: Performance indicator ranges . 123
Table 92 – CP 12/1: Consistent set of performance indicators for mid size automation
systems . 124
Table 93 – CP 12/2: DLL service selection . 125
Table 94 – CP 12/2: DLL protocol selection . 126
Table 95 – CP 12/2: DLL service selection . 127

Table 96 – CP 12/2: DLL protocol selection . 128
Table 97 – CP 12/2: AL service selection . 129
Table 98 – CP 12/2: AL protocol selection . 129
Table 99 – CP 12/2: AL service select
...