IEC PAS 62601:2009

IEC/PAS 62601
Edition 1.0 2009-01
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Industrial communication networks – Fieldbus specifications –
WIA-PA communication network and communication profile

IEC/PAS 62601:2009(E)
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IEC/PAS 62601
Edition 1.0 2009-01
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Industrial communication networks – Fieldbus specifications –
WIA-PA communication network and communication profile

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XG
ICS 25.040.40; 35.100.05 ISBN 978-2-88910-814-5
– 2 – PAS 62601 © IEC:2009(E)
CONTENTS
FOREWORD.11
1 Scope.12
2 Normative references .12
3 Terms, definitions, abbreviated terms, acronyms, and conventions.12
3.1 Terms and definitions .12
3.2 Abbreviated terms and acronyms .15
4 Definition of data types.17
4.1 Representation of Boolean type.17
4.2 Representation of integer type.17
4.3 Representation of unsigned integer type .17
4.4 Representation of floating point number type.17
4.5 Representation of visible string type.17
4.6 Representation of 8-bit byte type.18
4.7 Representation of bit string type.18
4.8 Representation of time-of-day type.18
4.9 Representation of binary date type .18
4.10 Representation of time difference type .18
5 WIA-PA overview.18
5.1 Device Type .18
5.2 Network Topology .18
5.3 Stack.19
5.4 Interconnection .21
6 System Management .22
6.1 Overview .22
6.2 Framework of system management .23
6.3 Virtual Communication Relationship .24
6.3.1 General .24
6.3.2 VCR structure.25
6.3.3 VCR Establishment.25
6.3.4 VCR release .26
6.4 Network management.26
6.4.1 General .26
6.4.2 Address assignment for the cluster head .26
6.4.3 Routing configuration.26
6.4.4 General .26
6.4.5 Join process of routing device .26
6.4.6 Leaving process of the routing device.27
6.4.7 Allocation of communication resources for routing device .29
6.4.8 Time source and time synchronization .29
6.4.9 Network performance monitoring .29
6.4.10 Firmware update.29
6.5 Network Management Agent.30
6.5.1 General .30
6.5.2 Cluster member address assignment .30

PAS 62601 © IEC:2009(E) – 3 –
6.5.3 Joining process of cluster member .30
6.5.4 Leaving process of cluster member .31
6.5.5 Cluster message aggregation .33
6.5.6 An example for aggregation configuration process.33
6.5.7 Allocation of communication resource for field device .35
6.5.8 Cluster performance monitoring.35
6.6 Device management.35
6.6.1 General .35
6.6.2 Device attributes management .35
6.6.3 Layer management.36
6.6.4 Security management .36
6.6.5 VCR mapping management .36
6.7 Management Information Base (MIB).36
6.7.1 Attribute and Method .36
6.7.2 MIB services.37
6.8 Interaction with plant operations or maintenance personnel.37
7 Physical Layer.37
8 Data link layer .37
8.1 General .37
8.2 Stack structure .37
8.3 Functional description .39
8.3.1 General .39
8.3.2 Compatibility and coexistence .39
8.3.3 Time synchronization.39
8.3.4 Timeslot communication .40
8.3.5 WIA-PA superframe.40
8.3.6 Frequency hopping .41
8.3.7 Communication resource allocation .41
8.3.8 DLPDU priority and scheduling rules .42
8.3.9 Retry strategy.43
8.3.10 Subnet discovery.43
8.3.11 Management service .43
8.3.12 Radio link control and quality measurement.44
8.3.13 Security.44
8.3.14 DLL state machine.44
8.4 DLL frame formats.45
8.4.1 General frame format .45
8.4.2 Date frame format.46
8.4.3 MAC beacon format.46
8.4.4 Command frame format .47
8.5 Data link layer data services.50
8.5.1 General .50
8.5.2 DLDE-DATA.request.50
8.5.3 DLDE-DATA.confirm.51
8.5.4 DLDE-DATA.indication .52
8.5.5 Time sequence of the DLL data service .53
8.6 Data link layer management services .54
8.6.1 General .54
8.6.2 Sub-network discovery services.54

– 4 – PAS 62601 © IEC:2009(E)
8.6.3 Device joining services .56
8.6.4 Device leaving services .60
8.6.5 Communication resource allocation services .66
8.6.6 Management information attribute getting services .78
8.6.7 Management information attribute setting services .79
8.7 Data link layer management information base (DLL-MIB) .81
8.7.1 General .81
8.7.2 Unstructured attribute.81
8.7.3 Structured attributes .81
9 Network Layer .85
9.1 General .85
9.2 Stack structure .85
9.3 Function description .86
9.3.1 General .86
9.3.2 Addressing .86
9.3.3 Routing.86
9.3.4 Packet lifecycle management .87
9.3.5 Joining and leaving network of device .87
9.3.6 End-to-end network performance monitoring.87
9.3.7 Fragmentation and reassembly.87
9.3.8 Network layer state machine.87
9.4 Network layer packet formats .88
9.4.1 Common packet format.88
9.4.2 Data packet .89
9.4.3 Command packet.89
9.5 Network layer data services .91
9.5.1 General .91
9.5.2 NLDE-DATA.request primitive .91
9.5.3 NLDE-DATA.confirm primitive.92
9.5.4 NLDE-DATA.indication primitive .93
9.5.5 Time sequence of the NL data service .93
9.6 Network layer management services .94
9.6.1 General .94
9.6.2 NL-MIB attribute getting services.94
9.6.3 NL-MIB attribute setting services .95
9.6.4 Routing services.96
9.6.5 Joining Network services .100
9.6.6 Leave Network services.103
9.6.7 NLME-PATH_FAILURE.indication primitive. 106
9.7 Network layer management information Base (NL-MIB) . 107
9.7.1 General .107
9.7.2 Unstructured attributes .107
9.7.3 Structured attributes .108
10 Application Layer.108
10.1 Overview .108
10.1.1 General .108
10.1.2 AL structure.108
10.1.3 Functions of UAP.109
10.1.4 Functions of ASL .109

PAS 62601 © IEC:2009(E) – 5 –
10.2 UAP .109
10.2.1 General .109
10.2.2 UAO .110
10.2.3 Instance of UAO .111
10.3 Application Sub-layer .114
10.3.1 General .114
10.3.2 Application sub-layer data entity.115
10.3.3 Application sub-layer management entity. 121
10.4 Application layer frame formats .129
10.4.1 General .129
10.4.2 ASL general frame format.129
10.4.3 Different frame type format .131
10.5 Application layer management information base.136
10.5.1 General .136
10.5.2 Object list .136
10.5.3 Object description header.137
10.5.4 Object description table item of UAO . 137
11 Security.137
11.1 General .137
11.2 Security management.137
11.2.1 General .137
11.2.2 Security manager .138
11.2.3 Security management agent .138
11.2.4 Security management object.139
11.2.5 Security management information base . 139
11.3 Security mechanism .139
11.3.1 General .139
11.3.2 Data link layer security .139
11.3.3 Application layer security.139
11.3.4 Security management information base . 140
11.4 Security Services .140
11.4.1 Data integrity.140
11.4.2 Data confidentiality.140
11.4.3 Data authenticity .140
11.4.4 Device authentication .140
11.4.5 Access control.140
11.4.6 Replay Protection .141
11.5 Key management .141
11.5.1 Key generate .141
11.5.2 Key update .141
11.5.3 Key revocation.141
11.5.4 Key lifecycle .141
Bibliography.143

Figure 1 – Architecture of WIA-PA .19
Figure 2 – OSI 7-Layer Communication Model mapped to WIA-PA.20
Figure 3 – WIA-PA protocol stack .20
Figure 4 – The framework of a WIA-PA gateway .21

– 6 – PAS 62601 © IEC:2009(E)
Figure 5 – DMAP in system management.23
Figure 6 – System management with centralized and distributed approach .24
Figure 7 – System management flow .24
Figure 8 – Long address structure of routing device.26
Figure 9 – Short address structure of routing device .26
Figure 10 – Join process of routing device .27
Figure 11 – Active leaving process of routing device.28
Figure 12 – Passive leaving process of routing device .29
Figure 13 – Long address structure.30
Figure 14 – Short address structure.30
Figure 15 – Joining process of field device .31
Figure 16 – Active leaving process of field device .32
Figure 17 – Passive leaving process of field device .32
Figure 18 – An example of packet aggregation .34
Figure 19 – WIA-PA data link layer stack structure .38
Figure 20 – WIA-PA DLL reference model.38
Figure 21 – WIA-PA superframe .40
Figure 22 – R1, R2 and R3 superframe structures .41
Figure 23 – An example of resource allocation.42
Figure 24 – DLL state machine .44
Figure 25 – Time sequence of the data service (source device side).53
Figure 26 – Time sequence of the data service (destination device side) .54
Figure 27 – Time sequence of subnet discovery .56
Figure 28 – Time sequence of routing device joining (routing device side) .59
Figure 29 – Time sequence of routing device leaving (gateway side) .59
Figure 30 – Time sequence of field device joining (field device side) .60
Figure 31 – Time sequence of field device joining (routing device side) .60
Figure 32 – Time sequence of routing device active leaving (routing device side) .62
Figure 33 – Time sequence of routing device active leaving (gateway side) .62
Figure 34 – Time sequence of routing device active leaving (field device side) .63
Figure 35 – Time sequence of routing device passive leaving (gateway side) .63
Figure 36 – Time sequence of routing device passive leaving (routing device side) .64
Figure 37 – Time sequence of routing device passive leaving (field device side).64
Figure 38 – Time sequence of field device active leaving (field device side) .65
Figure 39 – Time sequence of field device active leaving (routing device side) .65
Figure 40 – Time sequence of field device passive leaving (routing device side).66
Figure 41 – Time sequence of field device passive leaving (field device side).66
Figure 42 – Adding a link originated from gateway to routing device .68
Figure 43 – Adding a link originated from routing device to field device.68
Figure 44 – Updating a link originated by gateway to a routing device .70
Figure 45 – Updating a link originated from routing device to field device .70
Figure 46 – Releasing a link originated from gateway to routing device.72
Figure 47 – Releasing a link originated from routing device to field device.72

PAS 62601 © IEC:2009(E) – 7 –
Figure 48 – Adding a superframe originated from gateway to routing device .74
Figure 49 – Adding a superframe originated from routing device to field device .74
Figure 50 – Updating a superframe originated from gateway to routing device .76
Figure 51 – Updating a superframe originated from routing device to field device .76
Figure 52 – Releasing a superframe originated from gateway to routing device .78
Figure 53 – Releasing a superframe originated from routing device to field device.78
Figure 54 – Relationship of the DLL structured attributes .82
Figure 55 – An example of long period data transmission .83
Figure 56 – WIA-PA network layer stack structure .85
Figure 57 – WIA-PA Network Layer reference model.85
Figure 58 – Network layer state machine .88
Figure 59 – Network layer packet format.88
Figure 60 – Control field .88
Figure 61 – Network layer data packet format .89
Figure 62 – Network layer command packet format.89
Figure 63 – Command packet of adding route request .90
Figure 64 – Command packet of adding route response.90
Figure 65 – Command packet of updating route request .90
Figure 66 – Command packet of updating route response.91
Figure 67 – Command packet of deleting route request .91
Figure 68 – Command packet of deleting route response.91
Figure 69 – Time sequence of network layer data services .93
Figure 70 – Time sequence for route adding .97
Figure 71 – Time sequence for route updating .99
Figure 72 – Time sequence for route deleting .100
Figure 73 – Time sequence for field device joining.102
Figure 74 – Time sequence for routing device joining .103
Figure 75 – Time sequence of field device active leaving.105
Figure 76 – Time sequence of field device passive leaving . 105
Figure 77 – Time sequence of routing device active leaving. 106
Figure 78 – Time sequence of routing device passive leaving . 106
Figure 79 – Structure of application layer.109
Figure 80 – User application process .110
Figure 81 – Client-Server Communication Process .119
Figure 82 – Publisher－Subscriber Communication Process . 120
Figure 83 – Report-Sink Communication Process .120
Figure 84 – Security management structure .138
Figure 85 – Key updating time sequence .142

Table 1 – VCR structure .25
Table 2 – Aggregation Object Attribute .33
Table 3 – Device Attribute.35
Table 4 – Hopping mechanisms .41

– 8 – PAS 62601 © IEC:2009(E)
Table 5 – General frame format .45
Table 6 – DLL frame control.46
Table 7 – Date frame format .46
Table 8 – Beacon payload .46
Table 9 – General command frame format .47
Table 10 – DLL command frame .47
Table 11 – Link adding request command frame format .47
Table 12 – Link update request command frame format .48
Table 13 – Link release request command frame format .48
Table 14 – Superframe adding request command frame format.48
Table 15 – Superframe update request command frame format .49
Table 16 – Superframe release request command frame format.49
Table 17 – Keep-alive notification command frame format .49
Table 18 – DLDE-DATA.request parameters .50
Table 19 – DLDE-DATA.confirm parameters .51
Table 20 – Status table.52
Table 21 – DLDE-DATA.indication parameters.52
Table 22 – DLME-DISCOVERY.request parameters.55
Table 23 – DLME- DISCOVERY.confirm parameters.55
Table 24 – Network Descriptor list .56
Table 25 – DLME-JOIN.request parameters.57
Table 26 – DLME-JOIN.indication parameters.57
Table 27 – DLME-JOIN.response parameters .58
Table 28 – DLME-JOIN.confirm parameters .58
Table 29 – DLME-LEAVE.request parameters.61
Table 30 – DLME-LEAVE.indication parameters .61
Table 31 – DLME-LEAVE.confirm parameters.61
Table 32 – DLME-ADD-LINK.request parameters .67
Table 33 – DLME-ADD-LINK.confirm parameters .67
Table 34 – DLME-UPDATE-LINK.request parameters .69
Table 35 – DLME-UPDATE-LINK.confirm parameters .69
Table 36 – DLME-RELEASE-LINK.request parameters .71
Table 37 – DLME-RELEASE-LINK.confirm parameters .71
Table 38 – DLME-ADD-SFR.request parameters .73
Table 39 – DLME-ADD-SFR.confirm parameters.73
Table 40 – DLME-UPDATA-SFR.request parameters .75
Table 41 – DLME-UPDATE-SFR.confirm parameters .75
Table 42 – DLME-RELEASE-SFR.request primitive parameters.77
Table 43 – DLME-RELEASE-SFR. confirm parameters .77
Table 44 – DLME-GET.request primitive parameters.79
Table 45 – DLME-GET.confirm parameters.79
Table 46 – DLME-SET.request parameters .80
Table 47 – DLME-SET.confirm parameters .80

PAS 62601 © IEC:2009(E) – 9 –
Table 48 – Unstructured attribute.81
Table 49 – Identifier of the structured attributes .81
Table 50 – Three tables of the structured attributes .81
Table 51 – Superframe attribute structure .82
Table 52 – Link attribute structure.83
Table 53 – Neighbour attribute structure .84
Table 54 – Routing table.87
Table 55 – Network layer states.87
Table 56 – Network layer command packet.89
Table 57 – Executing results of Commands .90
Table 58 – NLDE-DATA.request primitive parameters.92
Table 59 – NLDE-DATA.confirm primitive parameters .92
Table 60 – NLDE-DATA.indication primitive parameters.93
Table 61 – NLME-GET.request primitive parameters.94
Table 62 – NLME-GET.Confirm primitive parameters .95
Table 63 – NLME-SET.request primitive parameters .95
Table 64 – NLME-SET.confirm primitive parameters .96
Table 65 – NLME-ADD_ROUTE.request primitive parameters.96
Table 66 – NLME-ADD_ROUTE.confirm primitive parameters.97
Table 67 – NLME-UPDATE_ROUTE.request primitive parameters .98
Table 68 – NLME-UPDATE_ROUTE.confirm primitive parameters .98
Table 69 – NLME-UPDATE_ROUTE.request primitive parameters .99
Table 70 – NLME-DELETE_ROUTE.confirm primitive parameters.100
Table 71 – NLME-JOIN.request primitive parameters.101
Table 72 – NLME-JOIN.confirm primitive parameters .101
Table 73 – NLME-JOIN.indication primitive parameters . 102
Table 74 – NLME-JOIN.response primitive parameters . 102
Table 75 – NLME-LEAVE.request primitive parameters.103
Table 76 – NLME-LEAVE.confirm primitive parameters.104
Table 77 – NLME-LEAVE.indication primitive parameters .104
Table 78 – NLME-LEAVE.response primitive parameters .104
Table 79 – NLME-PATH_FAILURE.indication primitive parameters . 107
Table 80 – Unstructured attributes .107
Table 81 – Unstructured attributes .108
Table 82 – NLRoute_Tbl structure .108
Table 83 – AIO object .112
Table 84 – AOO object .113
Table 85 – Read request data format .113
Table 86 – Read response data format .113
Table 87 – Write request data format .114
Table 88 – Write response data format .114
Table 89 – Publish data format .114
Table 90 – Report data format .114

– 10 – PAS 62601 © IEC:2009(E)

Table 91 – Report ack data format .
...