IEC 62734:2014

IEC 62734 ®
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Industrial networks –
Wireless communication network and communication profiles – ISA 100.11a

Réseaux industriels –
Réseau de communication sans fil et profils de communication – ISA 100.11a

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IEC 62734 ®
Edition 1.1 2019-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial networks –
Wireless communication network and communication profiles – ISA 100.11a

Réseaux industriels –
Réseau de communication sans fil et profils de communication – ISA 100.11a

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.60; 33.170 ISBN 978-2-8322-7238-1

IEC 62734 ®
Edition 1.1 2019-07
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Industrial networks –
Wireless communication network and communication profiles – ISA 100.11a

Réseaux industriels –
Réseau de communication sans fil et profils de communication – ISA 100.11a

– 2 – IEC 62734:2014+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 21
0 Introduction . 23
0.1 General . 23
0.2 Document structure . 23
0.3 Potentially relevant patents . 23
1 Scope . 25
2 Normative references . 25
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 26
3.1 Terms and definitions. 26
3.2 Abbreviated terms and acronyms . 55
3.3 Conventions . 61
4 Overview . 63
4.1 General . 63
4.2 Interoperability and related issues . 63
4.3 Quality of service . 64
4.4 Worldwide applicability . 64
4.5 Network architecture . 64
4.6 Network characteristics . 70
5 System . 78
5.1 General . 78
5.2 Devices . 78
5.3 Networks . 86
5.4 Protocol suite structure . 96
5.5 Data flow . 97
5.6 Time reference. 104
5.7 Firmware upgrades . 105
5.8 Wireless backbones and other infrastructures . 105
6 System management role . 105
6.1 General . 105
6.2 DMAP . 107
6.3 System manager . 131
7 Security . 188
7.1 General . 188
7.2 Security services . 189
7.3 PDU security . 194
7.4 Joining process . 227
7.5 Session establishment . 259
7.6 Key update . 265
7.7 Functionality of the security manager role . 271
7.8 Security policies. 273
7.9 Security functions available to the AL . 276
7.10 Security statistics collection, threat detection, and reporting . 279
7.11 DSMO functionality . 280
8 Physical layer . 287
8.1 General . 287

© IEC 2019
8.2 Default physical layer . 288
9 Data-link layer . 289
9.1 General . 289
9.2 DDSAP . 359
9.3 Data DPDUs and ACK/NAK DPDUs . 362
9.4 DL management information base . 390
9.5 DLE methods . 440
9.6 DL alerts . 442
10 Network layer . 445
10.1 General . 445
10.2 NL functionality overview . 445
10.3 NLE data services . 465
10.4 NL management object . 468
10.5 NPDU formats . 476
11 Transport layer . 484
11.1 General . 484
11.2 TLE reference model . 485
11.3 Transport security entity . 485
11.4 Transport data entity . 486
11.5 TPDU encoding . 491
11.6 TL model . 493
12 Application layer . 503
12.1 General . 503
12.2 Energy considerations . 504
12.3 Legacy control system considerations . 504
12.4 Overview of object-oriented modeling . 505
12.5 Object model . 507
12.6 Object attribute model . 508
12.7 Method model . 510
12.8 Alert model . 511
12.9 Alarm state model . 511
12.10 Event state model . 512
12.11 Alert reporting . 513
12.12 Communication interaction model . 515
12.13 AL addressing . 525
12.14 Management objects . 528
12.15 User objects. 529
12.16 Data types . 562
12.17 Application services provided by application sublayer . 569
12.18 AL flow use of lower layer services . 605
12.19 AL management . 606
12.20 Process control industry standard data structures . 624
12.21 Additional tables . 627
12.22 Coding . 628
12.23 Syntax . 652
12.24 Detailed coding examples (informative) . 664
13 Provisioning. 665
13.1 General . 665

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© IEC 2019
13.2 Terms and definitions for devices with various roles or states . 665
13.3 Provisioning procedures. 667
13.4 Pre-installed symmetric keys . 667
13.5 Provisioning using out-of-band mechanisms . 668
13.6 Provisioning networks . 668
13.7 State transition diagrams . 671
13.8 Device management application protocol objects used during provisioning . 675
13.9 Management objects . 678
13.10 Device provisioning service object . 684
13.11 Provisioning functions (informative) . 692
Annex A (informative) User layer/application profiles . 696
Annex B (normative) Communication role profiles . 698
Annex C (informative) Background information . 710
Annex D (normative) Configuration defaults . 716
Annex E (informative) Use of backbone networks . 723
Annex F (normative) Basic security concepts – Notation and representation . 726
Annex G (informative) Using certificate chains for over-the-air provisioning . 727
Annex H (normative) Security building blocks . 728
Annex I (informative) Definition templates . 738
Annex J (informative) Operations on attributes. 743
Annex K (normative) Standard object types . 748
Annex L (informative) Standard data types . 753
Annex M (normative) Identification of tunneled legacy fieldbus protocols . 755
Annex N (informative) Tunneling and native object mapping . 756
Annex O (informative) Generic protocol translation . 758
Annex P (informative) Exemplary GIAP adaptations for this standard . 762
Annex Q (informative) Exemplary GIAP adaptations for IEC 62591 . 767
Annex R (informative) Host system interface to standard-compliant devices via a
gateway . 776
Annex S (informative) Symmetric-key operation test vectors . 782
Annex T (informative) Data-link and network headers for join requests . 785
Annex U (informative) Gateway role . 787
Annex V (informative) Compliance with ETSI EN 300 328 v1.8.1 v2.1.1 . 855
Bibliography . 860

Figure 1 – Standard-compliant network . 66
Figure 2 – Typical single-layer PDU without fragmenting or blocking. 68
Figure 3 – Full multi-layer PDU structure used by this standard . 68
Figure 4 – Physical devices versus roles . 81
Figure 5 – Notional representation of device phases . 85
Figure 6 – Simple star topology . 87
Figure 7 – Simple hub-and-spoke topology . 88
Figure 8 – Mesh topology . 89
Figure 9 – Simple star-mesh topology . 90
Figure 10 – Example where network and D-subnet overlap . 91

© IEC 2019
Figure 11 – Example where network and D-subnet differ. 92
Figure 12 – Network with multiple gateways . 93
Figure 13 – Basic network with backup gateway . 94
Figure 14 – Network with backbone . 95
Figure 15 – Network with backbone – Device roles . 96
Figure 16 – Reference model used by this standard . 97
Figure 17 – Basic data flow . 98
Figure 18 – Data flow between I/O devices . 99
Figure 19 – Data flow with legacy I/O device . 100
Figure 20 – Data flow with backbone-resident device . 101
Figure 21 – Data flow between I/O devices via backbone subnet . 102
Figure 22 – Data flow to standard-aware control system . 103
Figure 23 – Management architecture . 106
Figure 24 – DMAP . 109
Figure 25 – Example of management SAP flow through standard protocol suite . 111
Figure 26 – System manager architecture concept . 132
Figure 27 – UAP-system manager interaction during contract establishment . 154
Figure 28 – Contract-related interaction between DMO and SCO . 157
Figure 29 – Contract source, destination, and intermediate devices . 170
Figure 30 – Contract establishment example. 180
Figure 31 – Contract ID usage in source . 181
Figure 32 – Contract termination . 185
Figure 33 – Contract modification with immediate effect. 187
Figure 34 – Examples of DPDU and TPDU scope . 189
Figure 35 – Keys and associated lifetimes . 191
Figure 36 – Key lifetimes . 193
Figure 37 – DPDU structure . 196
Figure 38 – DLE and DLS processing for a D-transaction initiator . 197
Figure 39 – Received DPDUs – DLE and DSC . 199
Figure 40 – TPDU structure and protected coverage . 212
Figure 41 – TMIC parameters . 212
Figure 42 – TL and TSC interaction, outgoing TPDU . 214
Figure 43 – TL and TSC interaction, incoming TPDU . 215
Figure 44 – Example: Overview of the symmetric-key joining process . 232
Figure 45 – Example: Overview of the symmetric-key joining process of a backbone
device . 233
Figure 46 – Asymmetric-key-authenticated key agreement scheme . 243
Figure 47 – Example: Overview of the asymmetric-key joining process for a device with
a DL. 246
Figure 48 – Example: Overview of the asymmetric-key joining process of a backbone
device . 247
Figure 49 – Device state transitions for joining process and device lifetime . 259
Figure 50 – High-level example of session establishment . 260
Figure 51 – Key update protocol overview. 265

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© IEC 2019
Figure 52 – Device key establishment and key update state transition . 271
Figure 53 – DL protocol suite and PhPDU/DPDU structure . 291
Figure 54 – Graph routing example . 294
Figure 55 – Inbound and outbound graphs . 296
Figure 56 – Slotted-channel-hopping . 300
Figure 57 – Slow-channel-hopping . 301
Figure 58 – Hybrid operation . 301
Figure 59 – Radio spectrum usage . 302
Figure 60 – Predefined channel-hopping-pattern1 . 304
Figure 61 – Two groups of DLEs with different channel-hopping-pattern-offsets . 305
Figure 62 – Interleaved channel-hopping-pattern1 with sixteen different channel-
hopping-pattern-offsets . 306
Figure 63 – Example timeslot allocation for slotted-channel-hopping. 307
Figure 64 – Example timeslot allocation for slow-channel-hopping . 308
Figure 65 – Hybrid mode with slotted-channel-hopping and slow-channel-hopping . 309
Figure 66 – Combining slow-channel-hopping and slotted-channel-hopping . 309
Figure 67 – Example of a three-timeslot superframe and how it repeats . 310
Figure 68 – Superframes and links . 310
Figure 69 – Multiple superframes with aligned timeslots. 311
Figure 70 – Example superframe for slotted-channel-hopping . 315
Figure 71 – Example superframe for slow-channel-hopping . 316
Figure 72 – Components of a slow-channel-hopping superframe. 316
Figure 73 – Example configuration for avoiding collisions among routers . 317
Figure 74 – Hybrid configuration . 318
Figure 75 – Timeslot allocation and message queue . 320
Figure 76 – 250 ms alignment intervals . 323
Figure 77 – Timeslot durations and timing . 324
Figure 78 – Clock source acknowledges receipt of a Data DPDU . 329
Figure 79 – Transaction timing attributes . 331
Figure 80 – Dedicated and shared transaction timeslots . 332
Figure 81 – Unicast transaction . 333
Figure 82 – PDU wait time (PWT) . 336
Figure 83 – Duocast support in the standard . 337
Figure 84 – Duocast transaction . 338
Figure 85 – Shared timeslots with active CSMA/CA . 339
Figure 86 – Transaction during slow-channel-hopping periods . 340
Figure 87 – DL management SAP flow through standard protocol suite . 343
Figure 88 – PhPDU and DPDU structure . 362
Figure 89 – Typical ACK/NAK DPDU layout . 372
Figure 90 – Relationship among DLMO indexed attributes . 412
Figure 91 – Address translation process . 448
Figure 92 – Fragmentation process . 450
Figure 93 – Reassembly process . 451

© IEC 2019
Figure 94 – Processing of an NSDU received from a TLE . 453
Figure 95 – Processing of a received NPDU . 454
Figure 96 – Processing of a NPDU received by a NLE from the backbone . 456
Figure 97 – Delivery of a received NPDU at its final destination NLE . 457
Figure 98 – Routing from a field device direct to a field-connected gateway without
backbone routing . 458
Figure 99 – Protocol suite diagram for routing from a field device direct to a field-
connected gateway without backbone routing . 459
Figure 100 – Routing an NPDU from a field device to a gateway via a backbone router . 460
Figure 101 – Protocol suite diagram for routing an APDU from a field device to a
gateway via a backbone router . 461
Figure 102 – Routing from a field device on one D-subnet to another field device on a
different D-subnet . 462
Figure 103 – Protocol suite diagram for routing from an I/O device on one D-subnet to
another I/O device on a different D-subnet . 463
Figure 104 – Example of routing over an Ethernet backbone network . 464
Figure 105 – Example of routing over a fieldbus backbone network . 465
Figure 106 – Distinguishing between NPDU header formats . 477
Figure 107 – TLE reference model . 485
Figure 108 – UDP pseudo-header for IPv6 . 487
Figure 109 – TPDU structure . 491
Figure 110 – User application objects in a UAP . 506
Figure 111 – Alarm state model . 512
Figure 112 – Event model . 513
Figure 113 – A successful example of multiple outstanding requests, with response
concatenation . 518
Figure 114 – An example of multiple outstanding unordered requests, with second
write request initially unsuccessful . 519
Figure 115 – An example of multiple outstanding ordered requests, with second write
request initially unsuccessful . 520
Figure 116 – Send window example 1, with current send window smaller than
maximum send window . 522
Figure 117 – Send window example 2, with current send window the same size as
maximum send window, and non-zero usable send window width . 522
Figure 118 – Send window example 3, with current send window the same size as
maximum send window, and usable send window width of zero . 523
Figure 119 – General addressing model . 525
Figure 120 – UAP management object state diagram . 532
Figure 121 – Alert report reception state diagram . 534
Figure 122 – Alert-reporting example . 534
Figure 123 – UploadDownload object download state diagram . 551
Figure 124 – UploadDownload object upload state diagram . 551
Figure 125 – Publish sequence of service primitives . 572
Figure 126 – Client/server model two-part interactions . 577
Figure 127 – Client/server model four-part interactions: Successful delivery . 577
Figure 128 – Client/server model four-part interactions: Request delivery failure . 578

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Figure 129 – Client/server model four-part interactions: Response delivery failure . 578
Figure 130 – AlertReport and AlertAcknowledge, delivery success. 593
Figure 131 – AlertReport, delivery failure . 593
Figure 132 – AlertReport, acknowledgment failure . 594
Figure 133 – Concatenated response for multiple outstanding write requests (no
message loss) . 601
Figure 134 – Management and handling of malformed APDUs received from device X . 607
Figure 135 – The provisioning network. 669
Figure 136 – State transition diagrams outlining provisioning steps during a device
lifecycle . 671
Figure 137 – State transition diagram showing various paths to joining a secured
network . 674
Figure 138 – Provisioning objects and interactions . 676
Figure C.1 – OSI Basic Reference Model . 712
Figure O.1 – Generic protocol translation publish diagram . 758
Figure O.2 – Generic protocol translation subscribe diagram . 759
Figure O.3 – Generic protocol translation client/server transmission diagram . 760
Figure O.4 – Generic protocol translation client/server reception diagram . 761
Figure R.1 – Host integration reference model . 776
Figure R.2 – Configuration using an electronic device definition. 778
Figure R.3 – Configuration using FDT/DTM approach . 779
Figure U.1 – Gateway scenarios . 789
Figure U.2 – Basic gateway model . 790
Figure U.3 – Internal sequence of primitives for session interface . 794
Figure U.4 – Internal sequence of primitives for lease management interface . 794
Figure U.5 – Internal sequence of primitives for system report interfaces . 795
Figure U.6 – Internal sequence of primitives for time interface . 795
Figure U.7 – Internal sequence of primitives for client/server interface initiated from
gateway to an adapter device . 796
Figure U.8 – Internal sequence of primitives for publish interface initiated from gateway
to an adapter device . 796
Figure U.9 – Internal sequence of primitives for subscribe interface initiated from an
adapter device . 797
Figure U.10 – Internal sequence of primitives for publisher timer initiated from gateway
to an adapter device . 797
Figure U.11 – Internal sequence of primitives for subscriber timers initiated from an
adapter device . 797
Figure U.12 – Internal sequence of primitives for the bulk transfer interface . 798
Figure U.13 – Internal sequence of primitives for the alert subscription interface . 798
Figure U.14 – Internal sequence of primitives for the alert notification interface . 799
Figure U.15 – Internal sequence of primitives for gateway management interfaces . 799
Figure U.16 – Tunnel object model . 835
Figure U.17 – Distributed tunnel endpoints . 836
Figure U.18 – Multicast, broadcast, and one-to-many messaging . 837
Figure U.19 – Tunnel object buffering . 838
Figure U.20 – Publish/subscribe publisher CoSt flowchart. 841

© IEC 2019
Figure U.21 – Publish/subscribe publisher periodic flowchart . 841
Figure U.22 – Publish/subscribe subscriber common periodic and CoSt flowchart. 842
Figure U.23 – Network address mappings . 843
Figure U.24 – Connection_Info usage in protocol translation . 844
Figure U.25 – Transaction_Info usage in protocol translation .
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