EN IEC 61158-6-23:2023
(Main)Industrial communication networks - Fieldbus specifications - Part 6-23: Application layer protocol specification - Type 23 elements
Industrial communication networks - Fieldbus specifications - Part 6-23: Application layer protocol specification - Type 23 elements
IEC 61158-6-23:2023 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 23 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.
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-23: Protokollspezifikation des Application Layer (Anwendungsschicht) - Typ 23-Elemente
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-23: Spécification du protocole de la couche application Éléments de type 23
L'IEC 61158-6-23:2023 fournit des éléments communs pour les communications à temps critique ou non entre des programmes d’application dans un environnement et avec un matériel d’automation spécifiques aux bus de terrain de type 23. Le terme "à temps critique" est utilisé pour indiquer la présence d’une fenêtre temporelle, dans laquelle il est exigé de réaliser une ou plusieurs actions spécifiées selon un niveau défini de certitude. Tout manquement à réaliser ces actions dans la fenêtre de temps prévue risque de provoquer la défaillance des applications qui les demandent, avec le risque de mettre en danger l’équipement, l’usine, voire les personnes.
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-23. del: Specifikacija protokola na aplikacijski ravni - Elementi tipa 23 (IEC 61158-6-23:2023)
Aplikacijska raven procesnih vodil (FAL) uporabniškim programom omogoča dostop do komunikacijskega okolja procesnih vodil. Glede na to je mogoče aplikacijsko raven procesnih vodil šteti za »okno med ustreznimi aplikacijami«.
Ta del standarda IEC 61158 določa skupne elemente za osnovne časovno kritične in časovno nekritične sporočilne komunikacije med aplikacijami v avtomatizacijskem okolju ter material, specifičen za procesna vodila tipa 23. 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 dokument na abstrakten način določa na zunaj vidno vedenje, ki ga zagotavlja aplikacijska raven procesnih vodil različnih tipov v smislu:
a) abstraktne sintakse, ki določa podatkovne enote protokola aplikacijske ravni, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo,
b) prenosne sintakse, ki določa podatkovne enote protokola aplikacijske ravni, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo,
c) stroja stanja aplikacijskega konteksta, ki opredeljuje vedenje aplikacijskega opravila, vidnega med aplikacijskimi osebki, ki komunicirajo; in
d) strojev stanja aplikacijskega razmerja, ki opredeljujejo komunikacijsko vedenje med aplikacijskimi osebki, ki komunicirajo.
Namen tega dokumenta je opredeliti protokol, ki se zagotavlja za:
a) določitev žične predstavitve primitivov opravil iz standarda IEC 61158-5-23, in
b) določitev na zunaj vidnega vedenja, povezanega z njihovim prenosom.
Ta dokument določa protokol aplikacijske ravni procesnih vodil IEC v skladu z osnovnim referenčnim modelom OSI (ISO/IEC 7498) in strukturo aplikacijske ravni OSI (ISO/IEC 9545).
Opravila in protokole aplikacijske ravni procesnih vodil zagotavljajo aplikacijski osebki (AE) aplikacijske ravni procesnih vodil znotraj aplikacijskih procesov. Aplikacijski osebek aplikacijske ravni procesnih vodil sestavljata sklop objektno usmerjenih aplikacijskih opravilnih elementov (ASE) in osebek za upravljanje ravni (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 aplikacijske ravni procesnih vodil spada aplikacijski opravilni element za upravljanje, ki zagotavlja skupen sklop opravil za upravljanje primerkov razredov aplikacijske ravni 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 aplikacijske ravni 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 aplikacijske ravni procesnih vodil za nadzorovanje nekaterih vidikov njenega delovanja.
General Information
Relations
Overview
EN IEC 61158-6-23:2023 is the international / European application-layer protocol specification for Type 23 fieldbus elements used in industrial communication networks. Published as part of the IEC 61158 series and adopted by CENELEC, this standard defines common elements supporting both time-critical and non-time-critical messaging between application programs in automation environments. It replaces the 2019 edition and specifies the application-layer syntax, protocol data units (PDUs), and conformance rules for Type 23 fieldbus implementations.
Key topics and technical requirements
The standard defines detailed protocol constructs and requirements for Type 23 application-layer behavior, including:
- FAL (Fieldbus Application Layer) syntax and PDUs - abstract syntax for multiple PDU types (Connect, ConnectAck, Scan, Collect, Select, Launch, Token, MyStatus, Transient, Dummy, CyclicData variants, etc.).
- F-type and T-type PDUs - message families for control, setup, cyclic and acyclic data exchange, and timing-related messages.
- Cyclic and acyclic messaging - specifications for periodic (cyclic) I/O and on-demand (acyclic) data transfer with priority and detection mechanisms.
- Time-critical communication model - definition of a time-window concept where specified actions must complete with defined certainty; late completion risks application or safety failures.
- Time synchronization support - inclusion of PTP-related PDUs (PtpSync, PtpPdelayReq/Resp, FollowUp, Announce) and references to IEEE 1588 and IEEE 802.1AS for precise timing.
- Configuration and management PDUs - SLMP (Simple Layer Management Protocol) style PDUs for network, cyclic configuration, and object read/write.
- Data types and abstract syntax rules - ASN.1-style and bit/octet conventions for encoding PDUs and parameters.
- Conformance and normative references - links to IEC 61158-1, ISO/IEC OSI standards, RFCs (IP/UDP), IEEE timing standards and other relevant documents.
Applications and who uses it
EN IEC 61158-6-23:2023 is intended for stakeholders involved in designing, building, configuring and validating industrial automation networks that rely on Type 23 fieldbus protocols:
- Automation engineers and system integrators implementing fieldbus communication for PLCs, DCS, and HMIs
- Device and gateway manufacturers developing Type 23 fieldbus-compliant products
- Network architects specifying deterministic, time-sensitive industrial communication
- Safety and control engineers requiring clearly defined time-critical messaging behavior
- Test labs and certification bodies verifying conformance to IEC/CENELEC fieldbus standards
Typical use cases include process control, machine control, I/O aggregation, precise motion coordination, and other industrial systems needing deterministic timing and dependable application-layer messaging.
Related standards
- IEC 61158 (series) - Fieldbus family specifications
- IEC 61158-5-23 - Application layer service definition, Type 23
- IEEE 1588 (PTP) and IEEE 802.1AS - Time synchronization
- ISO/IEC 7498-1, ISO/IEC 8822 - OSI reference and presentation concepts
- IETF RFC 791, RFC 768 - IP and UDP protocols
Keywords: EN IEC 61158-6-23:2023, Type 23 fieldbus, application layer protocol, industrial communication networks, time-critical messaging, fieldbus standards, IEC 61158.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2023
Nadomešča:
SIST EN IEC 61158-6-23:2019
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-23. del:
Specifikacija protokola na aplikacijski ravni - Elementi tipa 23 (IEC 61158-6-
23:2023)
Industrial communication networks - Fieldbus specifications - Part 6-23: Application layer
protocol specification - Type 23 elements (IEC 61158-6-23:2023)
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-23: Protokollspezifikation des
Application Layer (Anwendungsschicht) - Typ 23-Elemente (IEC 61158-6-23:2023)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-23:
Spécification du protocole de la couche liaison de données - Eléments de type 23
(IEC 61158-6-23:2023)
Ta slovenski standard je istoveten z: EN IEC 61158-6-23:2023
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61158-6-23
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2023
ICS 25.040.40; 35.100.70; 35.110 Supersedes EN IEC 61158-6-23:2019
English Version
Industrial communication networks - Fieldbus specifications -
Part 6-23: Application layer protocol specification - Type 23
elements
(IEC 61158-6-23:2023)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 6-23:
bus de terrain - Partie 6-23: Spécification du protocole de la Protokollspezifikation des Application Layer
couche liaison de données - Eléments de type 23 (Anwendungsschicht) - Typ 23-Elemente
(IEC 61158-6-23:2023) (IEC 61158-6-23:2023)
This European Standard was approved by CENELEC on 2023-04-28. 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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61158-6-23:2023 E
European foreword
The text of document 65C/1204/FDIS, future edition 3 of IEC 61158-6-23, 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
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-01-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-04-28
document have to be withdrawn
This document supersedes EN IEC 61158-6-23:2019 and all of its amendments and corrigenda (if
any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61158-6-23:2023 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 61158-6 (series) NOTE Approved as EN 61158-6 (series)
IEC 61784-1 (series) NOTE Approved as EN IEC 61784-1 (series)
IEC 61784-2 (series) NOTE Approved as EN IEC 61784-2 (series)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61158-1 2023 Industrial communication networks - Fieldbus - -
specifications - Part 1: Overview and guidance
for the IEC 61158 and IEC 61784 series
IEC 61158-5-23 2023 Industrial communication networks - Fieldbus EN IEC 61158-5-23 2023
specifications - Part 5-23: Application layer
service definition - Type 23 elements
ISO/IEC 7498-1 - Information technology - Open Systems - -
Interconnection - Basic reference model: The
basic model
ISO/IEC 8822 - Information technology - Open Systems - -
Interconnection - Presentation service definition
ISO/IEC 8824-1 - Information technology - Abstract Syntax - -
Notation One (ASN.1) - Part 1: Specification of
basic notation
ISO/IEC 9545 - Information technology - Open Systems - -
Interconnection - Application layer structure
ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic Reference Model -
Conventions for the definition of OSI services
IEEE 802.1AS - IEEE Standard for Information technology - - -
Telecommunications and information exchange
between systems - IEEE standard for Local and
metropolitan area networks - Timing and
Synchronization for Time-Sensitive Applications
in Bridged Local Area Networks
IEEE Std 1588 - Standard for a Precision Clock Synchronization - -
Protocol for Networked Measurement and
Control Systems
IETF RFC 768 1980 User Datagram Protocol - -
IETF RFC 791 1981 Internet Protocol - -
IEC 61158-6-23 ®
Edition 3.0 2023-03
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-23: Application layer protocol specification – Type 23 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-6641-0
– 2 – IEC 61158-6-23:2023 © IEC 2023
CONTENTS
FOREWORD . 14
INTRODUCTION . 16
1 Scope . 17
1.1 General . 17
1.2 Specifications . 18
1.3 Conformance . 18
2 Normative references . 18
3 Terms, definitions, symbols, abbreviated terms and conventions . 19
3.1 Referenced terms and definitions . 19
3.1.1 ISO/IEC 7498-1 terms . 19
3.1.2 ISO/IEC 8822 terms . 19
3.1.3 IEC 61158-1 terms . 19
3.2 Additional Type 23 terms and definitions . 19
3.3 Symbols and abbreviated terms . 22
3.4 Conventions . 23
3.4.1 General concept . 23
3.4.2 Convention for the encoding of reserved bits and octets . 23
3.4.3 Conventions for abstract syntax description . 23
3.4.4 Conventions for bit description in octets . 23
3.4.5 Conventions for state machine descriptions . 24
4 FAL syntax description . 25
4.1 FALPDU type C abstract syntax . 25
4.1.1 Basic abstract syntax . 25
4.1.2 Connect-PDU . 26
4.1.3 ConnectAck-PDU . 26
4.1.4 Scan-PDU . 26
4.1.5 Collect-PDU . 27
4.1.6 Select-PDU . 27
4.1.7 Launch-PDU . 27
4.1.8 Token-PDU . 27
4.1.9 MyStatus-PDU . 28
4.1.10 Transient1-PDU . 28
4.1.11 Dummy-PDU . 29
4.1.12 Transient2-PDU . 29
4.1.13 NTNTest-PDU . 29
4.1.14 CyclicDataW-PDU. 30
4.1.15 CyclicDataB-PDU . 30
4.1.16 CyclicDataOut1-PDU . 30
4.1.17 CyclicDataOut2-PDU . 31
4.1.18 CyclicDataIn1-PDU . 31
4.1.19 CyclicDataIn2-PDU . 31
4.2 FALPDU type F abstract syntax . 32
4.2.1 Basic abstract syntax . 32
4.2.2 Persuasion-PDU . 33
4.2.3 TestData-PDU . 34
4.2.4 TestDataAck-PDU. 34
4.2.5 Setup-PDU . 35
IEC 61158-6-23:2023 © IEC 2023 – 3 –
4.2.6 SetupAck-PDU . 35
4.2.7 F-Token-PDU . 36
4.2.8 F-MyStatus-PDU . 36
4.2.9 Measure-PDU . 36
4.2.10 F-Offset-PDU . 37
4.2.11 F-Update-PDU . 37
4.2.12 F-CyclicData-PDU . 37
4.2.13 Transient1-PDU . 37
4.2.14 TransientAck-PDU . 41
4.2.15 Transient2-PDU . 42
4.2.16 ParamCheck-PDU . 42
4.2.17 Parameter-PDU . 43
4.2.18 Timer-PDU . 44
4.3 Data type assignments for type C . 45
4.4 Data type assignments for type F . 46
4.5 FALPDU type T abstract syntax . 47
4.5.1 Basic abstract syntax . 47
4.5.2 CyclicM-PDU . 50
4.5.3 CyclicS-PDU . 50
4.5.4 CyclicMs-PDU . 50
4.5.5 CyclicSs-PDU . 51
4.5.6 AcyclicPriority-PDU . 52
4.5.7 AcyclicDetection-PDU . 52
4.5.8 AcyclicDetectionAck-PDU . 53
4.5.9 AcyclicTestDataHeader . 54
4.5.10 AcyclicTestDataHeader . 55
4.5.11 AcyclicData-PDU . 55
4.5.12 PtpSync-PDU . 55
4.5.13 PtpPdelayReq-PDU . 55
4.5.14 PtpPdelayResp-PDU. 55
4.5.15 PtpFollowUp-PDU . 56
4.5.16 PtpPdelayRespFollowUp-PDU . 56
4.5.17 PtpAnnounce-PDU . 56
4.5.18 SlmpIPAddressSet-PDU . 56
4.5.19 SlmpNetworkConfigMain-PDU . 56
4.5.20 SlmpNetworkConfigTslt-PDU . 56
4.5.21 SlmpNotification-PDU . 56
4.5.22 SlmpMasterConfig-PDU . 57
4.5.23 SlmpSlaveConfig-PDU . 57
4.5.24 SlmpCyclicConfigMain-PDU . 57
4.5.25 SlmpCyclicConfigTrnSubPayload-PDU . 57
4.5.26 SlmpCyclicConfigRcvSubPayload-PDU . 57
4.5.27 SlmpCyclicConfigRcvSrcInfo-PDU . 58
4.5.28 SlmpLinkDevicePrmWrite-PDU . 58
4.5.29 SlmpLinkDevicePrmWriteCheckRequest-PDU . 58
4.5.30 SlmpLinkDevicePrmWriteCheckResponse-PDU . 58
4.5.31 SlmpNMTStateUpload-PDU . 58
4.5.32 SlmpNMTStateDownload-PDU . 59
4.5.33 SlmpReadObject-PDU . 59
– 4 – IEC 61158-6-23:2023 © IEC 2023
4.5.34 SlmpWriteObject-PDU . 59
4.5.35 SlmpObjectSubIDReadBlock-PDU . 59
4.5.36 SlmpObjectSubIDWriteBlock-PDU . 59
4.5.37 SlmpGetODList-PDU . 59
4.5.38 SlmpGetObjectDescription-PDU . 60
4.5.39 SlmpGetEntryDescription-PDU . 60
4.5.40 SlmpStopOwnStationCyclic-PDU . 60
4.5.41 SlmpStartOwnStationCyclic-PDU . 60
4.5.42 SlmpStopOtherStationsCyclic-PDU . 60
4.5.43 SlmpStartOtherStationsCyclic-PDU . 60
4.5.44 SlmpAllParameterGet-PDU . 61
4.5.45 SlmpParameterGet-PDU . 61
4.5.46 SlmpAllParameterSizeGet-PDU . 61
4.5.47 SlmpParameterSizeGet-PDU . 61
4.5.48 SlmpStationSubIDListGet-PDU . 61
4.5.49 SlmpDeviceIdentificationInfoGet-PDU . 61
4.5.50 SlmpDataMonitoring-PDU . 62
4.5.51 SlmpAllParameterSet-PDU . 62
4.5.52 SlmpParameterSet-PDU . 62
4.5.53 SlmpParameterVersionCheck-PDU . 62
4.5.54 SlmpDeviceIdentificationInfoCompare-PDU . 62
4.5.55 SlmpNodeSearch-PDU . 62
4.5.56 SlmpIPAddressSet-PDU . 63
4.5.57 SlmpDeviceInfoCompare-PDU . 63
4.5.58 SlmpParameterGet-PDU . 63
4.5.59 SlmpParameterSet-PDU . 63
4.5.60 SlmpParameterSetStart-PDU . 63
4.5.61 SlmpParameterSetEnd-PDU . 63
4.5.62 SlmpVerifyCheckCode-PDU . 64
4.5.63 SlmpOutputMapFileNameGet-PDU . 64
4.5.64 SlmpNewFile-PDU . 64
4.5.65 SlmpParameterSetCancel-PDU . 64
4.5.66 SlmpOpenFile-PDU . 64
4.5.67 SlmpCloseFile-PDU . 64
4.5.68 SlmpReadFile-PDU . 65
4.5.69 SlmpWriteFile-PDU . 65
4.5.70 SlmpStatusRead-PDU . 65
4.5.71 SlmpCommunicationSettingGet-PDU . 65
4.5.72 SlmpGetDeviceInfo-PDU . 65
4.5.73 SlmpGetBackupListFileName-PDU . 65
4.5.74 SlmpStartBackup-PDU . 66
4.5.75 SlmpEndBackup-PDU . 66
4.5.76 SlmpCheckRestoreVersion-PDU . 66
4.5.77 SlmpStartRestore-PDU . 66
4.5.78 SlmpEndRestore-PDU . 66
4.5.79 SlmpStatusRead2-PDU. 66
4.5.80 SlmpReqSearchNode-PDU . 67
4.5.81 SlmpGetSearchNodeState-PDU . 67
4.5.82 SlmpGetNodeList-PDU . 67
IEC 61158-6-23:2023 © IEC 2023 – 5 –
4.5.83 SlmpReqSetIPAddress-PDU . 67
4.5.84 SlmpSearchPrmControlStation-PDU . 67
4.5.85 SlmpRequestRestore-PDU . 68
4.5.86 SlmpCheckPrmDelivery-PDU . 68
4.5.87 SlmpRsvStationConfigTemporaryRelease-PDU . 68
4.5.88 SlmpRsvStationConfig-PDU . 68
4.5.89 SlmpGetEventNum-PDU . 68
4.5.90 SlmpGetEventHistory-PDU . 69
4.5.91 SlmpClearEventHistory-PDU . 69
4.5.92 SlmpClockOffsetDataSend-PDU . 69
4.5.93 SlmpSetWatchdogCounterInfo-PDU . 69
4.5.94 SlmpWatchdogCounterOffsetConfig-PDU . 69
4.5.95 SlmpRemoteReset-PDU . 69
4.5.96 SlmpGetCommunicationSet-PDU . 70
4.5.97 SlmpGetStationSubIDList-PDU . 70
4.5.98 SlmpGetDeviceInfo-PDU . 70
4.5.99 SlmpStartBackup-PDU . 70
4.5.100 SlmpEndBackup-PDU . 70
4.5.101 SlmpRequestBackup-PDU . 70
4.5.102 SlmpGetBackupPrm-PDU . 71
4.5.103 SlmpCheckRestore-PDU . 71
4.5.104 SlmpStartRestore-PDU . 71
4.5.105 SlmpEndRestore-PDU . 71
4.5.106 SlmpSetBackupPrm-PDU . 71
4.5.107 SlmpLinkupSpeed-PDU . 71
4.5.108 SlmpNodeIndication-PDU . 72
4.6 Data type assignments for type T . 72
5 FAL transfer syntax . 72
5.1 Encoding rules . 72
5.1.1 Unsigned encoding . 72
5.1.2 Octet string encoding . 72
5.1.3 SEQUENCE encoding . 72
5.1.4 LOctetString encoding . 72
5.2 FALPDU type C elements encoding . 73
5.2.1 FALARHeader . 73
5.2.2 Connect-PDU . 75
5.2.3 ConnectAck-PDU . 76
5.2.4 Scan-PDU . 76
5.2.5 Collect-PDU . 77
5.2.6 Select-PDU . 79
5.2.7 Launch-PDU . 80
5.2.8 Token-PDU . 80
5.2.9 MyStatus-PDU . 80
5.2.10 Transient1-PDU . 82
5.2.11 Dummy-PDU . 86
5.2.12 Transient2-PDU . 87
5.2.13 NTNTest-PDU . 98
5.2.14 CyclicDataW-PDU. 98
5.2.15 CyclicDataB-PDU . 99
– 6 – IEC 61158-6-23:2023 © IEC 2023
5.2.16 CyclicDataOut1-PDU . 100
5.2.17 CyclicDataOut2-PDU . 100
5.2.18 CyclicDataIn1-PDU . 101
5.2.19 CyclicDataIn2-PDU . 102
5.3 FALPDU type F elements encoding . 103
5.3.1 FALARHeader . 103
5.3.2 Persuasion-PDU . 108
5.3.3 TestData-PDU . 109
5.3.4 TestDataAck-PDU. 109
5.3.5 Setup-PDU . 111
5.3.6 SetupAck-PDU . 113
5.3.7 F-Token-PDU . 114
5.3.8 F-Measure-PDU . 115
5.3.9 F-Offset-PDU . 116
5.3.10 F-Update-PDU . 116
5.3.11 F-MyStatus-PDU . 116
5.3.12 F-CyclicData-PDU . 122
5.3.13 Transient1-PDU . 123
5.3.14 TransientAck-PDU . 128
5.3.15 Transient2-PDU . 129
5.3.16 ParamCheck-PDU . 132
5.3.17 Parameter-PDU . 133
5.3.18 Timer-PDU . 140
5.4 FALPDU type T elements encoding . 141
5.4.1 CyclicM-PDU . 141
5.4.2 CyclicS-PDU . 144
5.4.3 CyclicMs-PDU . 146
5.4.4 CyclicSs-PDU . 147
5.4.5 AcyclicPriority-PDU . 148
5.4.6 AcyclicDetection-PDU . 150
5.4.7 AcyclicDetectionAck-PDU . 151
5.4.8 AcyclicTestData-PDU . 157
5.4.9 AcyclicTestDataAck-PDU . 160
5.4.10 AcyclicData-PDU . 162
5.4.11 Ptp-PDU . 162
5.4.12 IpData-PDU . 164
6 Structure of the FAL protocol state machine . 164
7 FAL service protocol machine (FSPM) . 165
7.1 Overview. 165
7.2 FSPM type C . 165
7.2.1 Overview . 165
7.2.2 FSPM . 166
7.3 FSPM type F . 169
7.3.1 Overview . 169
7.3.2 FSPM . 171
7.4 FSPM type T . 176
7.4.1 Overview . 176
7.4.2 FSPM State Machine . 177
8 Application relationship protocol machine (ARPM) . 181
IEC 61158-6-23:2023 © IEC 2023 – 7 –
8.1 ARPM type C . 181
8.1.1 Overview . 181
8.1.2 Acyclic transmission . 182
8.1.3 Cyclic transmission . 183
8.1.4 Connection control . 188
8.1.5 Common parameter dist . 227
8.2 ARPM type F . 232
8.2.1 Overview . 232
8.2.2 Acyclic transmission . 233
8.2.3 Cyclic transmission . 235
8.2.4 Channel control . 238
8.2.5 Parameter dist . 278
8.2.6 Synchronous trigger. 282
8.2.7 Timer . 283
8.2.8 Measure transmission . 284
8.3 ARPM type T . 289
8.3.1 Overview . 289
8.3.2 Cyclic Transmission . 289
8.3.3 Acyclic Transmission . 291
8.3.4 Channel Control . 294
8.3.5 TimeSync Control . 297
8.3.6 IPTrans Control . 299
8.3.7 Handler. 300
9 DLL mapping protocol machine (DMPM) . 305
9.1 DMPM type C . 305
9.2 DMPM type F . 306
9.3 DMPM type T . 307
Bibliography . 309
Figure 1 – Bit description in octets . 24
Figure 2 – Structure for memory access information retrieve response . 90
Figure 3 – Attribute definitions . 90
Figure 4 – Access code definitions . 91
Figure 5 – Structure for RUN request . 92
Figure 6 – Structure for RUN response . 93
Figure 7 – Structure for STOP request . 93
Figure 8 – Structure for STOP response . 93
Figure 9 – Structure for batch memory read request . 94
Figure 10 – Structure for batch memory read response . 94
Figure 11 – Structure for random memory read request . 95
Figure 12 – Structure for random memory read response . 95
Figure 13 – Structure for batch memory write request . 96
Figure 14 – Structure for batch memory write response . 96
Figure 15 – Structure for random memory write request . 97
Figure 16 – Structure for random memory write response . 97
Figure 17 – Relationships between protocol machines . 165
– 8 – IEC 61158-6-23:2023 © IEC 2023
Figure 18 – Structure of FSPM C . 166
Figure 19 – Structure of FSPM F. 169
Figure 20 – Structure of FSPM T. 176
Figure 21 – Structure of ARPM C . 181
Figure 22 – Structure of ARPM F . 232
Figure 23 – Structure of ARPM T . 289
Figure 24 – Structure of type C DMPM . 305
Figure 25 – Structure of type F DMPM . 306
Figure 26 – Structure of type T DMPM . 307
Table 1 – State machine description elements . 24
Table 2 – Description of state machine elements . 24
Table 3 – Conventions used in state machines . 25
Table 4 – afFType . 73
Table 5 – priority . 74
Table 6 – portChoice. 75
Table 7 – portCheckResult . 76
Table 8 – dstPortInfo . 76
Table 9 – scanState . 76
Table 10 – nodeType . 77
Table 11 – loopStat
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Frequently Asked Questions
EN IEC 61158-6-23:2023 is a standard published by CLC. Its full title is "Industrial communication networks - Fieldbus specifications - Part 6-23: Application layer protocol specification - Type 23 elements". This standard covers: IEC 61158-6-23:2023 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 23 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.
IEC 61158-6-23:2023 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 23 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.
EN IEC 61158-6-23:2023 is classified under the following ICS (International Classification for Standards) categories: 25.040.40 - Industrial process measurement and control; 35.100.70 - Application layer; 35.110 - Networking. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 61158-6-23:2023 has the following relationships with other standards: It is inter standard links to EN IEC 61158-6-23:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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