SIST EN 61131-9:2014

Programmable controllers - Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI) (IEC 61131-9:2013)

This part of IEC 61131 specifies a single-drop digital communication interface technology for small sensors and actuators SDCI (commonly known as IO-Link™2), which extends the traditional digital input and digital output interfaces as defined in IEC 61131-2 towards a pointto- point communication link. This technology enables the transfer of parameters to Devices and the delivery of diagnostic information from the Devices to the automation system. This technology is mainly intended for use with simple sensors and actuators in factory automation, which include small and cost-effective microcontrollers. This part specifies the SDCI communication services and protocol (physical layer, data link layer and application layer in accordance with the ISO/OSI reference model) for both SDCI Masters and Devices. This part also includes EMC test requirements. This part does not cover communication interfaces or systems incorporating multiple point or multiple drop linkages, or integration of SDCI into higher level systems such as fieldbuses.

Speicherprogrammierbare Steuerungen - Teil 9: Leitlinien für die Anwendung und Implementierung von Programmiersprachen für Speicherprogrammierbare Steuerungen (IEC 61131-9:2013)

Automates programmables - Partie 9: Interface de communication numérique point à point pour les petits capteurs et actionneurs (SDCI) (CEI 61131-9:2013)

La CEI 61131-9:2013 spécifie une technologie d'interface de communication numérique point à point pour petits capteurs et actionneurs - SDCI - (généralement connue sous l'appellation IO-Lin); elle permet d'étendre les interfaces classiques d'entrées et de sorties numériques (telles que définies dans la CEI 61131-2) en une liaison de communication point à point. Cette technologie permet de transférer des paramètres aux Dispositifs et de fournir au système d'automatisation des informations de diagnostic depuis les Dispositifs.

Programirljivi kontrolniki - 9. del: Enožični digitalni komunikacijski vmesnik za male senzorje in dajalnike (SDCI) (IEC 61131-9:2013)

Ta del standarda IEC 61131 določa tehnologijo enožičnih digitalnih komunikacijskih vmesnikov za male senzorje in dajalnike SDCI (znane kot IO-Link™2), ki razširjajo tradicionalne digitalne vhodne in izhodne vmesnike, kot jih določa standard IEC 61131-2, na komunikacijsko povezavo od točke do točke. Ta tehnologija omogoča prenos parametrov v naprave in zagotavljanje diagnostičnih informacij iz naprav v avtomatizacijski sistem. Ta tehnologija je zlasti namenjena uporabi z enostavnimi senzorji in dajalniki v tovarniški avtomatizaciji, ki vsebuje majhne in stroškovno učinkovite mikrokontrolnike. Ta del določa komunikacijske storitve SDCI in protokol (fizično plast, plast podatkovnih povezav in aplikacijsko plast v skladu z referenčnim modelom ISO/OSI) za prednaprave in naprave SDCI. Ta del prav tako vključuje zahteve za preskus elektromagnetne združljivosti. Ta del ne zajema komunikacijskih vmesnikov ali sistemov, ki vsebujejo večtočkovne ali multidrop povezave, ali integracijo SDCI v sisteme višje ravni, kot so področna vodila.

General Information

• Status: Published
• Publication Date: 30-Jul-2014
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.240.50 - IT applications in industry
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Jan-2014
• Due Date: 21-Mar-2014
• Completion Date: 31-Jul-2014
• Ref Project: EN 61131-9:2013 - Programmable controllers - Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI)

Relations

• Replaced By: SIST EN IEC 61131-9:2022 - Programmable controllers - Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI) (IEC 61131-9:2022)
• Effective Date: 26-Jul-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61131-9:2014
01-september-2014
3URJUDPLUOMLYLNRQWUROQLNLGHO(QRåLþQLGLJLWDOQLNRPXQLNDFLMVNLYPHVQLN]D
PDOHVHQ]RUMHLQGDMDOQLNH6'&,,(&
Programmable controllers - Part 9: Single-drop digital communication interface for small
sensors and actuators (SDCI) (IEC 61131-9:2013)
Speicherprogrammierbare Steuerungen - Teil 9: Leitlinien für die Anwendung und
Implementierung von Programmiersprachen für Speicherprogrammierbare Steuerungen
(IEC 61131-9:2013)
Automates programmables - Partie 9: Interface de communication numérique point à
point pour les petits capteurs et actionneurs (SDCI) (CEI 61131-9:2013)
Ta slovenski standard je istoveten z: EN 61131-9:2013
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
SIST EN 61131-9:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61131-9:2014

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SIST EN 61131-9:2014

EUROPEAN STANDARD
EN 61131-9

NORME EUROPÉENNE
December 2013
EUROPÄISCHE NORM

ICS 25.040.40; 35.240.50


English version


Programmable controllers -
Part 9: Single-drop digital communication interface for small sensors and
actuators (SDCI)
(IEC 61131-9:2013)


Automates programmables -  Speicherprogrammierbare Steuerungen -
Partie 9: Interface de communication Teil 9: Schnittstelle für die Kommunikation
numérique point à point pour petits mit kleinen Sensoren und Aktoren über
capteurs et actionneurs (SDCI) eine Punkt-zu-Punkt-Verbindung
(CEI 61131-9:2013) (IEC 61131-9:2013)




This European Standard was approved by CENELEC on 2013-10-16. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61131-9:2013 E

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SIST EN 61131-9:2014
EN 61131-9:2013 - 2 -
Foreword
The text of document 65B/874/FDIS, future edition 1 of IEC 61131-9, prepared by SC 65B, "Measurement
and control devices", of IEC/TC 65, "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61131-9:2013.

The following dates are fixed:
• latest date by which the document has (dop) 2014-07-16
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-10-16
• latest date by which the national
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.

Endorsement notice
The text of the International Standard IEC 61131-9:2013 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 standards indicated:

IEC 60870-5-1:1990 NOTE Harmonised as EN 60870-5-1:1993 (not modified).
IEC 61158-2 NOTE Harmonised as EN 61158-2 (not modified).
IEC/TR 62453-61 NOTE Harmonised as CLC/TR 62453-61 (not modified).
ISOIEC 7498-1 NOTE Harmonised as EN ISOIEC 7498-1 (not modified).

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SIST EN 61131-9:2014
- 3 - EN 61131-9:2013
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year


IEC 60947-5-2 - Low-voltage switchgear and controlgear - EN 60947-5-2 -
Part 5-2: Control circuit devices and
switching elements - Proximity switches


IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 -
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test


IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 -
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test


IEC 61000-4-4 - Electromagnetic compatibility (EMC) - EN 61000-4-4 -
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test


IEC 61000-4-5 - Electromagnetic compatibility (EMC) - FprEN 61000-4-5 -
Part 4-5: Testing and measurement
techniques - Surge immunity test


IEC 61000-4-6 - Electromagnetic compatibility (EMC) - FprEN 61000-4-6 -
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields


IEC 61000-4-11 - Electromagnetic compatibility (EMC) - EN 61000-4-11 -
Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions
and voltage variations immunity tests


IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN 61000-6-2 -
Part 6-2: Generic standards - Immunity for + corr. September -
industrial environments


IEC 61000-6-4 - Electromagnetic compatibility (EMC) - EN 61000-6-4 -
Part 6-4: Generic standards - Emission
standard for industrial environments


IEC 61076-2-101 - Connectors for electronic equipment - EN 61076-2-101 -
Product requirements -
Part 2-101: Circular connectors - Detail
specification for M12 connectors with
screw-locking


IEC 61131-1 - Programmable controllers - EN 61131-1 -
Part 1: General information

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SIST EN 61131-9:2014
EN 61131-9:2013 - 4 -
Publication Year Title EN/HD Year
1)
IEC 61131-2 - Programmable controllers - EN 61131-2 -
Part 2: Equipment requirements and tests


IEC/TR 62390 - Common automation device - Profile guideline - -



ISO/IEC 646 1991 Information technology - ISO 7-bit coded - -
character set for information interchange


ISO/IEC 2022 - Information technology - Character code - -
structure and extension techniques


ISO/IEC 10646 - Information technology - Universal Coded - -
Character Set (UCS)


ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic reference model -
Conventions for the definition of OSI services

ISO 1177 - Information processing - Character structure for - -
start/stop and synchronous character-oriented
transmission

IEEE 754 2008 Binary floating-point arithmetic - -



1)
EN 61131-2 is superseded by EN 61010-2-201:2013, which is based on IEC 61010-2-201:2013.

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SIST EN 61131-9:2014




IEC 61131-9

®


Edition 1.0 2013-09




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Programmable controllers –

Part 9: Single-drop digital communication interface for small sensors and

actuators (SDCI)




Automates programmables –

Partie 9: Interface de communication numérique point à point pour petits


capteurs et actionneurs (SDCI)













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XH


ICS 25.040.40; 35.240.50 ISBN 978-2-8322-1076-5



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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61131-9:2014
– 2 – 61131-9 © IEC:2013
CONTENTS
FOREWORD . 14
INTRODUCTION . 16
1 Scope . 18
2 Normative references . 18
3 Terms, definitions, symbols, abbreviated terms and conventions . 19
3.1 Terms and definitions . 19
3.2 Symbols and abbreviated terms. 23
3.3 Conventions . 25
3.3.1 General . 25
3.3.2 Service parameters . 25
3.3.3 Service procedures . 26
3.3.4 Service attributes . 26
3.3.5 Figures . 26
3.3.6 Transmission octet order . 26
3.3.7 Behavioral descriptions . 27
TM
4 Overview of SDCI (IO-Link ) . 27
4.1 Purpose of technology . 27
4.2 Positioning within the automation hierarchy . 28
4.3 Wiring, connectors and power . 29
4.4 Communication features of SDCI . 29
4.5 Role of a Master . 31
4.6 SDCI configuration . 32
4.7 Mapping to fieldbuses . 32
4.8 Standard structure . 32
5 Physical Layer (PL) . 33
5.1 General . 33
5.1.1 Basics . 33
5.1.2 Topology . 33
5.2 Physical layer services . 34
5.2.1 Overview . 34
5.2.2 PL services . 35
5.3 Transmitter/Receiver . 37
5.3.1 Description method . 37
5.3.2 Electrical requirements . 37
5.3.3 Timing requirements . 41
5.4 Power supply . 44
5.4.1 Power supply options . 44
5.4.2 Power-on requirements. 45
5.5 Medium . 45
5.5.1 Connectors . 45
5.5.2 Cable. 47
6 Standard Input and Output (SIO) . 48
7 Data link layer (DL) . 48
7.1 General . 48
7.2 Data link layer services . 50
7.2.1 DL-B services . 50

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SIST EN 61131-9:2014
61131-9 © IEC:2013 – 3 –
7.2.2 DL-A services . 61
7.3 Data link layer protocol . 66
7.3.1 Overview . 66
7.3.2 DL-mode handler . 67
7.3.3 Message handler . 75
7.3.4 Process Data handler . 82
7.3.5 On-request Data handler . 85
7.3.6 ISDU handler . 88
7.3.7 Command handler . 92
7.3.8 Event handler . 95
8 Application layer (AL) . 98
8.1 General . 98
8.2 Application layer services . 99
8.2.1 AL services within Master and Device . 99
8.2.2 AL Services . 100
8.3 Application layer protocol . 108
8.3.1 Overview . 108
8.3.2 On-request Data transfer . 108
8.3.3 Event processing . 114
8.3.4 Process Data cycles . 117
9 System management (SM) . 118
9.1 General . 118
9.2 System management of the Master . 118
9.2.1 Overview . 118
9.2.2 SM Master services . 120
9.2.3 SM Master protocol . 125
9.3 System management of the Device . 133
9.3.1 Overview . 133
9.3.2 SM Device services . 135
9.3.3 SM Device protocol . 141
10 Device . 148
10.1 Overview . 148
10.2 Process Data Exchange (PDE) . 149
10.3 Parameter Manager (PM) . 149
10.3.1 General . 149
10.3.2 Parameter manager state machine . 149
10.3.3 Dynamic parameter . 151
10.3.4 Single parameter . 152
10.3.5 Block parameter . 153
10.3.6 Concurrent parameterization access . 155
10.3.7 Command handling . 155
10.4 Data Storage (DS) . 155
10.4.1 General . 155
10.4.2 Data Storage state machine . 155
10.4.3 DS configuration . 157
10.4.4 DS memory space . 157
10.4.5 DS Index_List . 158
10.4.6 DS parameter availability . 158
10.4.7 DS without ISDU . 158

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SIST EN 61131-9:2014
– 4 – 61131-9 © IEC:2013
10.4.8 DS parameter change indication . 158
10.5 Event Dispatcher (ED) . 158
10.6 Device features . 158
10.6.1 General . 158
10.6.2 Device backward compatibility . 159
10.6.3 Protocol revision compatibility . 159
10.6.4 Factory settings . 159
10.6.5 Application reset . 159
10.6.6 Device reset . 159
10.6.7 Visual SDCI indication . 159
10.6.8 Parameter access locking . 160
10.6.9 Data Storage locking . 160
10.6.10 Device parameter locking . 160
10.6.11 Device user interface locking . 160
10.6.12 Offset time . 160
10.6.13 Data Storage concept . 161
10.6.14 Block Parameter . 161
10.7 Device design rules and constraints . 161
10.7.1 General . 161
10.7.2 Process Data . 161
10.7.3 Communication loss . 161
10.7.4 Direct Parameter . 161
10.7.5 ISDU communication channel . 162
10.7.6 DeviceID rules related to Device variants . 162
10.7.7 Protocol constants . 162
10.8 IO Device description (IODD) . 163
10.9 Device diagnosis . 163
10.9.1 Concepts . 163
10.9.2 Events . 164
10.9.3 Visual indicators . 165
10.10 Device connectivity . 166
11 Master . 166
11.1 Overview . 166
11.1.1 Generic model for the system integration of a Master . 166
11.1.2 Structure and services of a Master . 166
11.2 Configuration Manager (CM) . 169
11.2.1 General . 169
11.2.2 Configuration parameter . 171
11.2.3 State machine of the Configuration Manager . 173
11.3 Data Storage (DS) . 175
11.3.1 Overview . 175
11.3.2 DS data object . 175
11.3.3 DS state machine . 175
11.3.4 Parameter selection for Data Storage . 181
11.4 On-Request Data exchange (ODE) . 181
11.5 Diagnosis Unit (DU) . 182
11.6 PD Exchange (PDE) . 183
11.6.1 General . 183
11.6.2 Process Data mapping. 183

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SIST EN 61131-9:2014
61131-9 © IEC:2013 – 5 –
11.6.3 Process Data invalid/valid qualifier status . 184
11.7 Port and Device configuration tool (PDCT) . 185
11.7.1 General . 185
11.7.2 Basic layout examples . 185
11.8 Gateway application . 186
11.8.1 General . 186
11.8.2 Changing Device configuration including Data Storage . 186
11.8.3 Parameter server and recipe control . 186
11.8.4 Anonymous parameters . 186
11.8.5 Virtual port mode DIwithSDCI . 187
Annex A (normative) Codings, timing constraints, and errors . 190
Annex B (normative) Parameter and commands . 211
Annex C (normative) ErrorTypes (ISDU errors) . 228
Annex D (normative) EventCodes (diagnosis information) . 233
Annex E (normative) Data types . 236
Annex F (normative) Structure of the Data Storage data object . 247
Annex G (normative) Master and Device conformity . 248
Annex H (informative) Residual error probabilities . 254
Annex I (informative) Example sequence of an ISDU transmission . 256
Annex J (informative) Recommended methods for detecting parameter changes . 258
Bibliography . 259

Figure 1 – Example of a confirmed service . 26
Figure 2 – Memory storage and transmission order for WORD based data types . 27
Figure 3 – SDCI compatibility with IEC 61131-2 . 27
Figure 4 – Domain of the SDCI technology within the automation hierarchy . 28
Figure 5 – Generic Device model for SDCI (Master's view) . 29
Figure 6 – Relationship between nature of data and transmission types . 30
Figure 7 – Object transfer at the applicati
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