IEC PAS 62948:2015

Industrial networks - Wireless communication network and communication profiles - WIA-FA

IEC PAS 62948:2015(E) specifies the system architecture and communication protocol of WIA-FA (Wireless Networks for Industrial Automation - Factory Automation) based on IEEE STD 802.11-2012 Physical Layer (PHY). It applies to wireless network systems for factory automation measuring, monitoring and control.

General Information

• Status: Replaced
• Publication Date: 21-Apr-2015
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 33.160.40 - Video systems
• ICS: 35.100.01 - Open systems interconnection in general
• Technical Committee: SC 65C - Industrial networks
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 27-Jul-2017

Relations

• Replaced By: IEC 62948:2017 - Industrial networks - Wireless communication network and communication profiles - WIA-FA
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC PAS 62948
®

Edition 1.0 2015-04
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
colour
inside


Industrial networks – Wireless communication network and communication
profiles – WIA-FA
IEC PAS 62948:2015-04(en)

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THIS PUBLICATION IS COPYRIGHT PROTECTED
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IEC PAS 62948

®


Edition 2.0 2015-04




PUBLICLY AVAILABLE



SPECIFICATION




PRE-STANDARD




colour

inside










Industrial networks – Wireless communication network and communication

profiles – WIA-FA



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 25.040.40; 35.100.01 ISBN 978-2-8322-2477-9



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC PAS 62948:2015 © IEC 2015
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviations, and conventions . 14
3.1 Terms and definitions . 14
3.2 Abbreviations . 17
3.3 Conventions . 19
4 Data coding . 20
4.1 Overview. 20
4.2 Basic data type coding . 21
4.2.1 Integer coding. 21
4.2.2 Unsigned coding . 21
4.2.3 Float coding . 22
4.2.4 Octetstring coding . 23
4.2.5 Bit Field coding . 23
4.2.6 TimeData coding . 23
4.2.7 KeyData coding . 23
4.3 Structured data type coding . 24
4.3.1 Structure type coding . 24
4.3.2 List type coding . 24
5 WIA-FA overview . 24
5.1 Device types . 24
5.1.1 Host computer . 24
5.1.2 Gateway device . 24
5.1.3 Access device . 24
5.1.4 Field device . 25
5.1.5 Handheld device . 25
5.2 Network topology . 25
5.3 Protocol architecture . 26
6 System management . 28
6.1 Overview. 28
6.2 Device Management Application Process . 28
6.2.1 Network manager . 31
6.2.2 Security manager . 31
6.2.3 Network management module . 31
6.2.4 Security management module . 31
6.2.5 DMAP state machines . 31
6.3 Addressing and address assignment . 42
6.4 Communication resource allocation . 42
6.4.1 General . 42
6.4.2 Communication resource allocation . 43
6.5 Joining and leave process of field device . 44
6.5.1 Joining process of a field device . 44
6.5.2 Communication resource allocation to field device . 45
6.5.3 Leaving process of a field device . 45
6.6 Network performance monitoring . 46

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IEC PAS 62948:2015 © IEC 2015 – 3 –
6.6.1 Device status report . 46
6.6.2 Channel condition report . 47
6.7 Management information base and services . 47
6.7.1 Management information base . 47
6.7.2 MIB services . 57
7 Physical layer . 61
7.1 General . 61
7.2 General requirements based on IEEE STD 802.11-2012 . 61
7.3 Additional requirements . 62
7.3.1 General . 62
7.3.2 Frequency band . 62
7.3.3 Channel bitmap . 62
7.3.4 Transmission power . 63
7.3.5 Data rate . 63
8 Data Link Layer . 64
8.1 General . 64
8.1.1 Protocol architecture . 64
8.1.2 WIA-FA superframe . 64
8.1.3 Communication based on multiple access devices . 67
8.1.4 Time synchronization . 68
8.1.5 Aggregation/Disaggregation . 69
8.1.6 Retransmission . 70
8.2 Data link sub-layer data services . 73
8.2.1 General . 73
8.2.2 DLDE-DATA.request primitive . 73
8.2.3 DLDE-DATA.indication primitive . 74
8.2.4 Time sequence of DLL data service . 75
8.3 Data link sub-layer management services . 76
8.3.1 General . 76
8.3.2 Network discovery services . 76
8.3.3 Time synchronization services . 78
8.3.4 Device joining services . 80
8.3.5 Device status report services . 83
8.3.6 Channel condition report services . 85
8.3.7 Remote attribute get services . 86
8.3.8 Remote attribute configuration services . 90
8.3.9 Device leaving services . 93
8.4 DLL frame formats . 94
8.4.1 General frame format . 94
8.4.2 Date frame format . 96
8.4.3 Aggregation frame format . 96
8.4.4 NACK frame format . 97
8.4.5 GACK frame format . 97
8.4.6 Beacon frame format . 97
8.4.7 Join request frame format . 98
8.4.8 Join response frame format . 98
8.4.9 Leave request frame format . 98
8.4.10 Device status report frame format . 99
8.4.11 Channel condition report frame format . 99

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8.4.12 Time synchronization request frame format . 99
8.4.13 Time synchronization response frame format . 99
8.4.14 Remote attribute get request frame format . 100
8.4.15 Remote attribute get response frame format . 100
8.4.16 Remote attribute set request frame format . 101
8.4.17 Remote attribute set response frame format . 101
8.5 Data link layer state machines . 101
8.5.1 DLL state machine of access field . 101
8.5.2 DLL state machine of field device . 105
8.5.3 Functions used in DLL state transitions . 110
9 Wired specifications between GW and AD . 111
9.1 Overview. 111
9.2 Join process of access device . 111
9.3 Frame formats between GW and AD . 111
10 Application Layer . 113
10.1 Overview. 113
10.2 AL protocol stack . 114
10.3 AL functions . 114
10.3.1 Data function . 114
10.3.2 Management function . 114
10.3.3 Communication mode . 115
10.4 Application data . 115
10.4.1 General . 115
10.4.2 Process data . 116
10.4.3 Event data . 117
10.5 User application process . 118
10.5.1 General . 118
10.5.2 User application object . 119
10.5.3 IO data images on gateway device . 119
10.5.4 Alarm mechanism . 120
10.5.5 Application configuration process . 120
10.6 Application services . 126
10.6.1 Confirmed services and unconfirmed services . 126
10.6.2 READ service . 127
10.6.3 WRITE service . 128
10.6.4 PUBLISH Service . 129
10.6.5 REPORT Service . 130
10.6.6 REPORT ACK. 131
10.7 Application sublayer . 132
10.7.1 Overview . 132
10.7.2 ASL data service . 132
10.7.3 ASL packet format . 135
11 Security . 155
11.1 General . 155
11.1.1 Security management architecture . 155
11.1.2 Security functions . 156
11.1.3 Keys . 156
11.2 Security services . 157
11.2.1 General . 157

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11.2.2 Key establish service . 158
11.2.3 Key update service . 160
11.2.4 Security alarm service . 162
11.3 Secure join . 164
11.3.1 General . 164
11.3.2 Secure join process of FD. 164
11.4 Key management . 165
11.4.1 General . 165
11.4.2 Key establish process . 165
11.4.3 Key update process . 166
11.5 DLL secure communication . 168
11.6 Security alarm . 169
11.7 Secure frame format . 169
11.7.1 General secure DLL frame format . 169
11.7.2 Secure aggregation frame format . 171
11.7.3 Key establish request frame format . 172
11.7.4 Key establish response frame format . 172
11.7.5 Key update request frame format . 172
11.7.6 Key update response frame format . 173
11.7.7 Security alarm request frame format . 173
Annex A (informative)  Security strategy for WIA-FA network . 174
A.1 Risk analysis for WIA-FA network . 174
A.2 Security principles for WIA-FA network . 174
A.3 Security objectives for WIA-FA network . 174
A.4 Security grade of WIA-FA network . 175
Annex B (informative) Regional modification for compliance with ETSI standards . 176
B.1 General . 176
B.2 Compliance with ETSI EN 300 440-2 V1.4.1 . 176
B.3 Compliance with ETSI EN 300 328 V1.8.1. 176
Bibliography . 180

Figure 1 – Conventions used for state machines . 19
Figure 2 – Integer coding . 21
Figure 3 – Unsigned coding . 21
Figure 4 – Single float coding . 22
Figure 5 – Double float coding . 22
Figure 6 – WIA-FA enhanced star topology . 25
Figure 7 – OSI basic reference model mapped to WIA-FA . 26
Figure 8 – Protocol architecture of WIA-FA . 27
Figure 9 – Data flow over WIA-FA network . 27
Figure 10 – System management scheme . 28
Figure 11 – DMAP of management system. 29
Figure 12 – DMAP state machine of gateway device . 32
Figure 13 – DMAP state machine of gateway device for each field device . 33
Figure 14 – DMAP state machine of a field device . 37
Figure 15 – Long address structure of device . 42

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Figure 16 – Joining process of field device . 44
Figure 17 – Communication resource allocation process for a field device . 45
Figure 18 – Passive leave process of a field device . 46
Figure 19 – Device status report process of field device . 46
Figure 20 – Channel condition report process of field device . 47
Figure 21 – BitMap format . 62
Figure 22 – WIA-FA DLL protocol architecture . 64
Figure 23 – The template of timeslot structure . 65
Figure 24 – WIA-FA default superframe . 66
Figure 25 – WIA-FA superframe . 66
Figure 26 – The example of WIA-FA devices multi-channel communication. 66
Figure 27 – An example of beacon communication based on multiple ADs . 67
Figure 28 – Process of one-way time synchronization . 68
Figure 29 – Process of two-way time synchronization . 69
Figure 30 – Aggregation frame payload format . 70
Figure 31 – Example of retransmission mode based on NACK . 71
Figure 32 – Example of multi-unicast retransmission mode . 72
Figure 33 – Example of multi-broadcast retransmission mode . 72
Figure 34 – Example of GACK-based timeslot backoff mode . 73
Figure 35 – Time sequence of period data service from FD to GW . 75
Figure 36 – Time sequence of other data service from FD to GW . 75
Figure 37 – Time sequence of data service from GW to FD . 76
Figure 38 – Network discovery process . 78
Figure 39 – Time synchronization process . 80
Figure 40 – Device join process . 83
Figure 41 – Device status report process . 84
Figure 42 – Channel condition report process . 86
Figure 43 – Remote attribute get process . 89
Figure 44 – Remote attribute set process . 93
Figure 45 – Device leave process . 94
Figure 46 – General frame format .
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