Industrial communication networks - Fieldbus specifications - Part 6-26: Application layer protocol specification - Type 26 elements (IEC 61158-6-26:2019)

This document provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 26 fieldbus. The term “time-critical” is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This International Standard defines in an abstract way the externally visible behavior provided by the Type 26 of the fieldbus Application Layer in terms of: a) the abstract syntax defining the application layer protocol data units conveyed between communicating application entities; b) the transfer syntax defining the application layer protocol data units conveyed between communicating application entities; c) the application context state machine defining the application service behavior visible between communicating application entities; and d) the application relationship state machines defining the communication behavior visible between communicating application entities. The purpose of this document is to define the protocol provided to: a) define the wire-representation of the service primitives defined in IEC 61158-5-26, and b) define the externally visible behavior associated with their transfer. This document specifies the protocol of the Type 26 fieldbus Application Layer, in conformance with the OSI Basic Reference Model (see ISO/IEC 7498-1) and the OSI Application Layer Structure (see ISO/IEC 9545). FAL services and protocols are provided by FAL application-entities (AE) contained within the application processes. The FAL AE is composed of a set of object-oriented Application Service Elements (ASEs) and a Layer Management Entity (LME) that manages the AE. The ASEs provide communication services that operate on a set of related application process object (APO) classes. One of the FAL ASEs is a management ASE that provides a common set of services for the management of the instances of FAL classes. Although these services specify, from the perspective of applications, how request and responses are issued and delivered, they do not include a specification of what the requesting and responding applications are to do with them. That is, the behavioral aspects of the applications are not specified; only a definition of what requests and responses they can send/receive is specified. This permits greater flexibility to the FAL users in standardizing such object behavior. In addition to these services, some supporting services are also defined in this document to provide access to the FAL to control certain aspects of its operation.

Industrielle Kommunikationsnetze - Feldbusse - Teil 6-26: Protokollspezifikation des Application Layer (Anwendungsschicht) - Typ 26-Elemente (IEC 61158-6-26:2019)

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-26: Spécification du protocole de la couche application - Eléments de type 26 (IEC 61158-6-26:2019)

L'IEC 61158-6-26:2019 fournit des éléments communs pour les communications de messagerie prioritaires et non prioritaires élémentaires entre les programmes d’application des environnements d’automatisation et le matériel spécifique au bus de terrain de type 26. On utilise le terme "prioritaire" pour traduire la présence d’une fenêtre temporelle, à l’intérieur de laquelle une ou plusieurs actions spécifiées doivent être terminées avec un niveau de certitude défini. Si les actions spécifiées ne sont pas réalisées dans la fenêtre temporelle, les applications demandant les actions risquent de connaître une défaillance, avec les risques que cela comporte pour les équipements, les installations et éventuellement la vie humaine.
La présente norme définit de manière abstraite le comportement, visible par un observateur externe, assuré par les différents Types de la couche Application de bus de terrain, en termes
a) de syntaxe abstraite définissant les unités de données de protocole de la couche Application, transmises entre les entités d'application en communication,
b) de syntaxe de transfert définissant les unités de données de protocole de la couche Application, transmises entre les entités d'application en communication;
c) de diagramme d'états de contexte d'application définissant le comportement de service d'application observable entre les entités d'application en communication; et
d) de diagrammes d'états de relations d'applications définissant le comportement de communication visible entre les entités d'application en communication.

Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-26. del: Specifikacija protokola na aplikacijski ravni - Elementi tipa 26 (IEC 61158-6-26:2019)

Ta dokument določa skupne elemente za osnovne časovno kritične in časovno nekritične sporočilne komunikacije med aplikacijami v avtomatizacijskem okolju ter materialu, specifičnem za procesna vodila tipa 26. Izraz »časovno kritičen« se uporablja za predstavitev prisotnosti časovnega okna, v okviru katerega se zahteva dokončanje enega ali več opredeljenih dejanj z določeno stopnjo gotovosti. Zaradi neuspešnega dokončanja opredeljenih dejanj v časovnem oknu je možna odpoved aplikacij, ki zahtevajo dejanja, pri čemer so ogroženi oprema, obrat in morda človeška življenja. Ta mednarodni standard na abstrakten način določa zunanje vidno vedenje, ki ga zagotavlja aplikacijski nivo procesnih vodil tipa 26 v zvezi s/z: a) abstraktno sintakso, ki opredeljuje podatkovne enote protokola aplikacijskega nivoja, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo, b) prenosno sintakso, ki opredeljuje podatkovne enote protokola aplikacijskega nivoja, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo, c) strojem stanj aplikacijskega konteksta, ki opredeljuje vedenje aplikacijskega opravila, vidnega med aplikacijskimi osebki, ki komunicirajo, in d) stroji stanj aplikacijskega razmerja, ki opredeljujejo komunikacijsko vedenje med aplikacijskimi osebki, ki komunicirajo. Namen tega standarda je opredeliti protokol za: a) določitev žične predstavitve primitivov opravil iz standarda IEC 61158-5-26 in b) določitev zunanje vidnega vedenja, povezanega z njihovim prenosom. Ta dokument določa protokol aplikacijskega nivoja procesnih vodil tipa 26 v skladu z osnovnim referenčnim modelom OSI (glej ISO/IEC 7498-1) in strukturo aplikacijskega nivoja OSI (glej ISO/IEC 9545). Opravila in protokole aplikacijskega nivoja procesnih vodil zagotavljajo aplikacijski osebki (AE) aplikacijskega nivoja procesnih vodil znotraj aplikacijskih procesov. Aplikacijski osebek aplikacijskega nivoja procesnih vodil sestavljata sklop objektno usmerjenih aplikacijskih opravilnih elementov (ASE) in osebek za upravljanje nivojev (LME), ki upravlja aplikacijski osebek. Aplikacijski opravilni elementi zagotavljajo komunikacijska opravila, ki delujejo na sklopu povezanih razredov objektov aplikacijskega procesa (APO). Med aplikacijske opravilne elemente aplikacijskega nivoja procesnih vodil spada aplikacijski opravilni element za upravljanje, ki zagotavlja skupen sklop opravil za upravljanje primerkov razredov aplikacijskega nivoja procesnih vodil. Čeprav ta opravila določajo način izdajanja ter dostavljanja zahtev in odzivov z vidika aplikacij, ne zajemajo specifikacije v zvezi s tem, kako naj se nanje odzovejo aplikacije, ki te zahteve in odzive oddajajo. To pomeni, da vedenjski vidiki aplikacij niso opredeljeni; opredeljena je le definicija zahtev in odzivov, ki jih lahko pošiljajo/prejemajo. Tako se uporabnikom aplikacijskega nivoja procesnih vodil omogoči večja prilagodljivost pri standardizaciji takega vedenja objektov. Poleg teh opravil so v tem dokumentu opredeljena tudi nekatera podporna opravila, da se omogoči dostop do aplikacijskega nivoja procesnih vodil za nadzorovanje nekaterih vidikov njegovega delovanja.

General Information

Status
Published
Publication Date
10-Oct-2019
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
30-Aug-2019
Due Date
04-Nov-2019
Completion Date
11-Oct-2019

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SLOVENSKI STANDARD
SIST EN IEC 61158-6-26:2019
01-november-2019
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-26. del:
Specifikacija protokola na aplikacijski ravni - Elementi tipa 26 (IEC 61158-6-
26:2019)
Industrial communication networks - Fieldbus specifications - Part 6-26: Application layer
protocol specification - Type 26 elements (IEC 61158-6-26:2019)
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-26: Protokollspezifikation des
Application Layer (Anwendungsschicht) - Typ 26-Elemente (IEC 61158-6-26:2019)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-26:
Spécification du protocole de la couche application - Eléments de type 26 (IEC 61158-6-
26:2019)
Ta slovenski standard je istoveten z: EN IEC 61158-6-26:2019
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.70 Uporabniški sloj Application layer
35.110 Omreževanje Networking
SIST EN IEC 61158-6-26:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61158-6-26:2019

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SIST EN IEC 61158-6-26:2019


EUROPEAN STANDARD EN IEC 61158-6-26

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2019
ICS 25.040.40; 35.100.70; 35.110

English Version
Industrial communication networks - Fieldbus specifications -
Part 6-26: Application layer protocol specification - Type 26
elements
(IEC 61158-6-26:2019)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 6-26:
bus de terrain - Partie 6-26: Spécification du protocole de la Protokollspezifikation des Application Layer
couche application - Eléments de type 26 (Anwendungsschicht) - Typ 26-Elemente
(IEC 61158-6-26:2019) (IEC 61158-6-26:2019)
This European Standard was approved by CENELEC on 2019-07-25. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61158-6-26:2019 E

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SIST EN IEC 61158-6-26:2019
EN IEC 61158-6-26:2019 (E)
European foreword
The text of document 65C/948/FDIS, future edition 1 of IEC 61158-6-26, prepared by SC 65C
"Industrial networks" of IEC/TC 65 "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 61158-6-26:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-04-25
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-07-25
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61158-6-26:2019 was approved by CENELEC as a
European Standard without any modification.


2

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SIST EN IEC 61158-6-26:2019
EN IEC 61158-6-26:2019 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61158-1 2019 Industrial communication networks - Fieldbus EN IEC 61158-1 2019
specifications - Part 1: Overview and guidance
for the IEC 61158 and IEC 61784 series
IEC 61158-5-26 2019 Industrial communication networks - Fieldbus EN IEC 61158-5-26 2019
specifications - Part 5-26: Application layer
service definition - Type 26 elements
IEC 61784-2 2019 Industrial communication networks - Profiles - EN IEC 61784-2 2019
Part 2: Additional fieldbus profiles for real-time
networks based on ISO/IEC/IEEE 8802-3
ISO/IEC 7498-1 -  Information technology - Open Systems - -
Interconnection - Basic Reference Model: The
Basic Model
ISO/IEC/IEEE -  Information technology - Telecommunications - -
8802-3 and information exchange between systems -
Local and metropolitan area networks - Specific
requirements - Part 3: Standard for Ethernet
ISO/IEC 8822 -  Information technology - Open Systems - -
Interconnection - Presentation service definition
ISO/IEC 8824-1 -  Information technology - Abstract Syntax - -
Notation One (ASN.1): Specification of basic
notation
ISO/IEC 8825-1 -  Information technology - ASN.1 encoding rules: - -
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and
Distinguished Encoding Rules (DER)
ISO/IEC 9545 -  Information technology - Open Systems - -
Interconnection - Application Layer structure
ISO/IEC 9899 -  Information technology - Programming languages - -
- C
IETF RFC 768 -  User Datagram Protocol - -
IETF RFC 791 -  Internet Protocol - DARPA Internet Program - -
Protocol Specification
3

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SIST EN IEC 61158-6-26:2019
EN IEC 61158-6-26:2019 (E)
IETF RFC 792 -  Internet Control Message Protocol - -
IETF RFC 793 -  Transmission Control Protocol - DARPA Internet - -
Program Protocol Specification
IETF RFC 796 -  Address mappings - -
IETF RFC 826 -  Ethernet Address Resolution Protocol: Or - -
Converting Network Protocol Addresses to 48.bit
Ethernet Address for Transmission on Ethernet
Hardware
IETF RFC 894 -  Standard for the Transmission of IP Datagrams - -
over Ethernet Networks
IETF RFC 919 -  Broadcasting Internet Datagrams - -
IETF RFC 922 -  Broadcasting Internet datagrams in the presence - -
of subnets
IETF RFC 950 -  Internet Standard Subnetting Procedure - -


4

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SIST EN IEC 61158-6-26:2019



IEC 61158-6-26

®


Edition 1.0 2019-06




INTERNATIONAL



STANDARD



















Industrial communication networks – Fieldbus specifications –

Part 6-26: Application layer protocol specification – Type 26 elements



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-7016-5




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


® Registered trademark of the International Electrotechnical Commission

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CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
1.1 General . 13
1.2 Specifications . 14
1.3 Conformance . 14
2 Normative references . 14
3 Terms, definitions, symbols, abbreviations and conventions . 15
3.1 Terms and definitions from other ISO/IEC standards . 15
3.1.1 Terms and definitions from ISO/IEC 7498-1 . 15
3.1.2 Terms and definitions from ISO/IEC 8822 . 16
3.1.3 Terms and definitions from ISO/IEC 9545 . 16
3.1.4 Terms and definitions from ISO/IEC 8824-1 . 16
3.1.5 Terms and definitions from ISO/IEC 8825-1 . 17
3.2 Type 26 specific terms and definitions . 17
3.3 Abbreviations and symbols . 21
3.4 Conventions . 23
3.4.1 Conventions used in state machines . 23
3.4.2 Convention for abstract syntax description . 24
3.4.3 Convention for reserved bits and octets . 24
3.4.4 Conventions for bit description in octets . 24
4 FAL syntax description . 25
4.1 General . 25
4.2 Overview of Type 26 fieldbus . 26
4.2.1 Application field and Common-memory . 26
4.2.2 Structure of Type 26 protocol . 27
4.2.3 Structure of Type 26 FAL . 28
4.2.4 Data link layer . 29
4.3 Operating principle . 29
4.3.1 Overview . 29
4.3.2 Logical ring maintenance . 30
4.3.3 Node addition . 33
4.3.4 Node in a logical ring . 36
4.3.5 Node drop-out . 36
4.3.6 Data transmission . 37
4.3.7 Data transmission frames . 46
4.4 FAL PDU abstract syntax . 49
4.4.1 Basic abstract syntax . 49
4.4.2 Transparent-msg- PDU . 51
4.4.3 Token-PDU . 51
4.4.4 Participation-req-PDU . 51
4.4.5 Byte-block-read PDUs . 51
4.4.6 Byte-block-write PDUs . 52
4.4.7 Word-block-read PDUs . 52
4.4.8 Word-block-write PDUs . 52
4.4.9 Network-parameter-read PDUs . 52
4.4.10 Network-parameter-write PDUs. 53

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4.4.11 Stop-command PDUs . 53
4.4.12 Operation-command PDUs . 53
4.4.13 Profile-read PDUs . 53
4.4.14 Trigger-PDU . 54
4.4.15 Log-data-read PDUs . 54
4.4.16 Log-data-clear PDUs . 54
4.4.17 Message-return PDUs . 54
4.4.18 Vendor-specific-msg PDUs . 55
4.4.19 Start-TK-hld-time-mrmt PDUs . 55
4.4.20 Terminate-TK-hld-time-mrmt PDUs . 55
4.4.21 Start-GP_Comm-sndr-log PDUs . 56
4.4.22 Terminate-GP_Comm-sndr-log PDUs . 56
4.4.23 Set-remote-node-config-para PDUs . 56
4.4.24 Read-rmt-partici-node-mgt-info-para PDUs . 56
4.4.25 Read-rmt- node-mgt-info-para PDUs . 57
4.4.26 Read-rmt-node-set-info-para PDUs . 57
4.4.27 Reset-node PDUs . 57
4.4.28 Cyclic-data PDUs . 57
4.5 Data type assignments . 57
5 Transfer syntax . 59
5.1 Encoding rules . 59
5.1.1 Basic encoding . 59
5.1.2 Fixed length Unsigned encoding . 59
5.1.3 Fixed length BitString encoding . 59
5.1.4 OctetString encoding . 59
5.1.5 SEQUENCE encoding . 60
5.2 PDU elements encoding . 60
5.2.1 FALARHeader . 60
5.2.2 Transparent-msg PDU . 63
5.2.3 Token-PDU . 64
5.2.4 Participation-req-PDU . 65
5.2.5 Byte-block-read PDUs . 66
5.2.6 Byte-block-write PDUs . 67
5.2.7 Word-block-read PDUs . 69
5.2.8 Word-block-write PDUs . 71
5.2.9 Network-parameter-read PDUs . 73
5.2.10 Network-parameter-write PDUs. 76
5.2.11 Stop-command PDUs . 79
5.2.12 Operation-command PDUs . 81
5.2.13 Profile-read PDUs . 83
5.2.14 Trigger-PDU . 85
5.2.15 Log-data-read PDUs . 86
5.2.16 Log-data-clear PDUs . 92
5.2.17 Message-return PDUs . 94
5.2.18 Vendor-specific-msg PDUs . 96
5.2.19 Start-TK-hld-time-mrmt PDUs . 98
5.2.20 Terminate-TK-hld-time-mrmt PDUs . 100
5.2.21 Start-GP_Comm-sndr-log PDUs . 103
5.2.22 Terminate-GP_Comm-sndr-log PDUs . 104

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5.2.23 Set-remote-node-config-para PDUs . 107
5.2.24 Read-rmt-partici-node-mgt-info-para PDUs . 110
5.2.25 Read-rmt- node-mgt-info-para PDUs . 112
5.2.26 Read-rmt-node-set-info-para PDUs . 115
5.2.27 Reset-node PDUs . 117
5.2.28 Cyclic-data PDUs . 118
6 FAL protocol state machines structure . 120
6.1 Overview. 120
6.2 Common variables, parameters, timers, counters, lists and queues . 121
6.2.1 V(3CWT), P(3CWT), T(3CWT): Three-lap-time-period-of-the-token-
circulation . 121
6.2.2 V(ACK): ACK received . 121
6.2.3 V(ACK_TN): ACK to this node . 121
6.2.4 V(AWT), P(AWT), T(AWT): Waiting-time-period-for-receiving-message-
acknowledge. 122
6.2.5 V(CBN): Current fragment number for fragmented cyclic-data
transmission . 122
6.2.6 V(CTFG): Cyclic-data fragment transfer . 122
6.2.7 V(CTRen), P (CTRen): Cyclic-data receive enable . 122
6.2.8 V(CTRQ): Cyclic-data transfer request . 122
6.2.9 C(MCNT): Cumulative count of message transmission carried over . 122
6.2.10 V(MCV): Message transmission carried over. 122
6.2.11 V(NMTP): No message transmission in previous cycle . 123
6.2.12 V(MFT), P(MFT), T(MFT): Allowable-minimum-frame-Interval-Time . 123
6.2.13 V(MmtCntType): Measurement control type . 123
6.2.14 V(MRVRQ): Message receive request . 123
6.2.15 V(MSRQ): Message transfer request . 123
6.2.16 Q(MSRXQ): Message-RX-Queue . 123
6.2.17 Q(MTXQ):Message-TX-Queue . 124
6.2.18 V(PAT), P(PAT), T(PAT): Participation-request-frame-acceptance-time . 124
6.2.19 V(PnMgtIF): Participation-node-management-information List . 124
6.2.20 V(PWT), T(PWT): Participation-request-frame-transmission-waiting-time . 124
6.2.21 V(RCT): Allowable-refresh-cycle-time . 124
6.2.22 V(RMT), T(RMT): Refresh-cycle-measurement-time. 124
6.2.23 C(RTX): Retransmission count . 125
6.2.24 V(SEQ): Sequence number value List . 125
6.2.25 V(SN): Successor node . 125
6.2.26 V(SrtMmt): Measurement started . 125
6.2.27 Q(SVRXQ): Server-RX Queue . 125
6.2.28 Q(SVTXQ): Server-TX Queue . 125
6.2.29 V(TBN), P(TBN): Total fragment number of Cyclic-data . 125
6.2.30 V(TDT), P(TDT), T(TDT): Joining-token-detection-time . 125
6.2.31 V(THT), P(THT), T(THT): Token-holding-time . 126
6.2.32 V(TK): Token holding . 126
6.2.33 V(TKH): Token holding node . 126
6.2.34 V(TN): Node identifier number . 126
6.2.35 V(TrWT), T(TrWT): Trigger-frame-transmission-waiting-time . 126
6.2.36 V(TSZ), P(TSZ): Total cyclic-data size . 126
6.2.37 V(TW), P(TW ), T(TW)( ): Token-watchdog-time . 126

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6.2.38 V(VSEQ): Version of sequence number value List . 126
6.3 Functions used in state tables . 127
7 FAL service protocol machine (FSPM) . 129
7.1 Overview. 129
7.2 Cyclic-data protocol machine . 130
7.2.1 Overview . 130
7.2.2 Cyclic-data primitives between FAL user and FSPM . 130
7.2.3 State table . 131
7.3 Message data protocol machine . 132
7.3.1 Overview . 132
7.3.2 Message-data primitive between FAL user and FSPM . 132
7.3.3 State table . 136
7.4 Load measurement protocol machine . 144
7.4.1 Overview . 144
7.4.2 Load measurement primitives between FAL user and FSPM . 144
7.4.3 State table . 146
7.5 General purpose communication server protocol machine . 149
7.5.1 Overview . 149
7.5.2 GP command server primitives between FAL user and FSPM . 149
7.5.3 State table . 150
7.6 Network management protocol machine . 152
7.6.1 Overview . 152
7.6.2 Network management primitives . 152
7.6.3 State table . 153
8 Application relationship protocol machine (ARPM) . 155
8.1 Overview. 155
8.2 Cyclic-TX/RX control . 156
8.2.1 Overview . 156
8.2.2 Cyclic-TX/RX control primitives between FSPM and ARPM . 156
8.2.3 State table . 157
8.3 Message-TX/RX control . 157
8.3.1 Overview . 157
8.3.2 Message-TX/RX control primitives between FSPM and ARPM . 158
8.3.3 State table . 158
8.4 Command server TX/RX control . 158
8.4.1 Overview . 158
8.4.2 Command server TX/RX primitives between FSPM and ARPM . 159
8.4.3 State table . 159
8.5 AR control . 160
8.5.1 Overview . 160
8.5.2 AR control primitives between FSPM and ARPM . 160
8.5.3 State table .
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