IEC 62948:2017

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

IEC 62948:2017 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). This document applies to wireless network systems for factory automation measuring, monitoring and control.
The contents of the corrigendum of March 2021 have been included in this copy.

Réseaux industriels - Réseau de communication sans fil et profils de communication - WIA-FA

IEC 62948:2017 spécifie l'architecture du système et le protocole de communication des WIA-FA (Wireless Networks for Industrial Automation - Factory Automation) basés sur la couche physique (PHY) de l'IEEE STD 802.11-2012.
Le présent document s'applique aux systèmes de réseau sans fil pour la mesure, la surveillance et la commande de l'automatisation d'usine.
Le contenu du rectificatif de mars 2021 a été inclus dans cette copie.

General Information

• Status: Published
• Publication Date: 26-Jul-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 29.060.20 - Cables
• ICS: 35.110 - Networking
• Technical Committee: SC 65C - Industrial networks
• Current Stage: PPUB - Publication issued
• Start Date: 11-Aug-2017
• Completion Date: 27-Jul-2017

Relations

• Replaces: IEC PAS 62948:2015 - Industrial networks - Wireless communication network and communication profiles - WIA-FA
• Effective Date: 05-Sep-2023
• Corrected By: IEC 62948:2017/COR1:2021 - Corrigendum 1 - Industrial networks - Wireless communication network and communication profiles - WIA-FA
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62948 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
colour
inside
Industrial networks – Wireless communication network and communication
profiles – WIA-FA
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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International Standards for all electrical, electronic and related technologies.

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IEC 62948 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
colour
inside
Industrial networks – Wireless communication network and communication

profiles – WIA-FA
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.110 ISBN 978-2-8322-4607-8

– 2 – IEC 62948:2017 © IEC 2017
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviated terms, and conventions . 14
3.1 Terms and definitions . 14
3.2 Abbreviated terms . 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 BitField coding . 23
4.2.6 Bitstring coding . 24
4.2.7 TimeData coding . 24
4.2.8 KeyData coding . 25
4.3 Structured data type coding . 25
4.3.1 Structure type coding . 25
4.3.2 List type coding . 25
5 WIA-FA overview . 25
5.1 Device types . 25
5.1.1 General . 25
5.1.2 Host computer . 25
5.1.3 Gateway device . 25
5.1.4 Access device . 26
5.1.5 Field device . 26
5.1.6 Handheld device . 26
5.2 Network topology . 26
5.3 Protocol architecture . 27
6 System management . 29
6.1 Overview. 29
6.2 Device Management Application Process . 30
6.2.1 General . 30
6.2.2 Network manager . 32
6.2.3 Security manager . 32
6.2.4 Network management module . 32
6.2.5 Security management module . 32
6.2.6 DMAP state machines . 32
6.3 Addressing and address assignment . 44
6.4 Communication resource allocation . 45
6.4.1 General . 45
6.4.2 Communication resource allocation . 45
6.5 Joining and leave process of field device . 46
6.5.1 Join process of a field device . 46

6.5.2 Communication resource allocation to field device . 47
6.5.3 Leaving process of a field device . 48
6.6 Network performance monitoring . 49
6.6.1 Device status report . 49
6.6.2 Channel condition report . 50
6.7 Management information base and services . 50
6.7.1 Management information base . 50
6.7.2 MIB services . 61
7 Physical layer . 64
7.1 General . 64
7.2 General requirements based on IEEE STD 802.11-2012 . 64
7.3 Additional requirements . 65
7.3.1 General . 65
7.3.2 Frequency band . 65
7.3.3 Channel bitmap . 65
7.3.4 Transmit power . 67
7.3.5 Data rate . 67
8 Data Link Layer . 67
8.1 General . 67
8.1.1 DLL functions . 67
8.1.2 Protocol architecture . 67
8.1.3 WIA-FA superframe . 68
8.1.4 Communication based on multiple access devices . 70
8.1.5 Time synchronization . 72
8.1.6 Frame aggregation/disaggregation. 73
8.1.7 Fragmentation and reassembly . 74
8.1.8 Retransmission . 74
8.2 Data link sub-layer data services . 77
8.2.1 General . 77
8.2.2 DLDE-DATA.request primitive . 77
8.2.3 DLDE-DATA.indication primitive . 78
8.2.4 Time sequence of DLL data service . 79
8.3 Data link sub-layer management services . 80
8.3.1 General . 80
8.3.2 Network discovery services . 81
8.3.3 Time synchronization services . 83
8.3.4 Device joining services . 85
8.3.5 Device status report services . 88
8.3.6 Channel condition report services . 90
8.3.7 Remote attribute get services . 92
8.3.8 Remote attribute set services . 96
8.3.9 Device leaving services . 100
8.4 DLL frame formats . 102
8.4.1 General frame format . 102
8.4.2 Date frame format . 103
8.4.3 Aggregation frame format . 104
8.4.4 NACK frame format . 104
8.4.5 GACK frame format . 104
8.4.6 Beacon frame format .
...

IEC 62948 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks – Wireless communication network and communication
profiles – WIA-FA
Réseaux industriels – Réseau de communication sans fil et profils de
communication – WIA-FA
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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About the IEC
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International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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IEC 62948 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks – Wireless communication network and communication

profiles – WIA-FA
Réseaux industriels – Réseau de communication sans fil et profils de

communication – WIA-FA
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.110 ISBN 978-2-8322-1017-3

– 2 – IEC 62948:2017 © IEC 2017
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviated terms, and conventions . 14
3.1 Terms and definitions . 14
3.2 Abbreviated terms . 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 BitField coding . 23
4.2.6 Bitstring coding . 24
4.2.7 TimeData coding . 24
4.2.8 KeyData coding . 25
4.3 Structured data type coding . 25
4.3.1 Structure type coding . 25
4.3.2 List type coding . 25
5 WIA-FA overview . 25
5.1 Device types . 25
5.1.1 General . 25
5.1.2 Host computer . 25
5.1.3 Gateway device . 25
5.1.4 Access device . 26
5.1.5 Field device . 26
5.1.6 Handheld device . 26
5.2 Network topology . 26
5.3 Protocol architecture . 27
6 System management . 29
6.1 Overview. 29
6.2 Device Management Application Process . 30
6.2.1 General . 30
6.2.2 Network manager . 32
6.2.3 Security manager . 32
6.2.4 Network management module . 32
6.2.5 Security management module . 32
6.2.6 DMAP state machines . 32
6.3 Addressing and address assignment . 44
6.4 Communication resource allocation . 45
6.4.1 General . 45
6.4.2 Communication resource allocation . 45
6.5 Joining and leave process of field device . 46
6.5.1 Join process of a field device . 46

6.5.2 Communication resource allocation to field device . 47
6.5.3 Leaving process of a field device . 48
6.6 Network performance monitoring . 49
6.6.1 Device status report . 49
6.6.2 Channel condition report . 50
6.7 Management information base and services . 50
6.7.1 Management information base . 50
6.7.2 MIB services . 61
7 Physical layer . 64
7.1 General . 64
7.2 General requirements based on IEEE STD 802.11-2012 . 64
7.3 Additional requirements . 65
7.3.1 General . 65
7.3.2 Frequency band . 65
7.3.3 Channel bitmap . 65
7.3.4 Transmit power . 67
7.3.5 Data rate . 67
8 Data Link Layer . 67
8.1 General . 67
8.1.1 DLL functions . 67
8.1.2 Protocol architecture . 67
8.1.3 WIA-FA superframe . 68
8.1.4 Communication based on multiple access devices . 70
8.1.5 Time synchronization . 72
8.1.6 Frame aggregation/disaggregation. 73
8.1.7 Fragmentation and reassembly . 74
8.1.8 Retransmission . 74
8.2 Data link sub-layer data services .
...