EN IEC 62769-115-2:2020

Field device integration (FDI) - Part 115-2: Profiles - Modbus-RTU

IEC 62769-115-2:2020 defines the protocol-specific definitions (PSDs) as defined in IEC 62769-7 on generic protocol extensions for the Modbus® -RTU protocol in accordance with CPF 15 in IEC 61784 2.

Feldgeräteintegration (FDI) - Teil 115-2: Profile - Modbus-RTU

Intégration des appareils de terrain (FDI) - Partie 115-2: Profils - Modbus-RTU

L'IEC 62769-115-2:2020 spécifie les définitions spécifiques au protocole (PSD – Protocol Specific Definition) telles que définies dans l'IEC 62769-7 relative aux extensions de protocole générique pour le protocole Modbus® -RTU conformément au CPF 15 de l'IEC 61784-2.

Vključitev procesne terenske naprave (FDI) - 115-2. del: Profili - Modbus-RTU (IEC 62769-115-2:2020)

General Information

• Status: Published
• Publication Date: 05-Nov-2020
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65E - IEC_SC_65E
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 06-Nov-2020
• Completion Date: 06-Nov-2020
• Ref Project: SIST EN IEC 62769-115-2:2021 - Field device integration (FDI) – Part 115-2: Profiles – Modbus-RTU (IEC 62769-115-2:2020)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62769-115-2:2021
01-februar-2021
Vključitev procesne terenske naprave (FDI) - 115-2. del: Profili - Modbus- RTU (IEC
62769-115-2:2020)
Field device integration (FDI) – Part 115-2: Profiles – Modbus-RTU (IEC 62769-115-
2:2020)
Feldgeräteintegration (FDI) - Teil 115-2: Profile - Modbus-RTU (IEC 62769-115-2:2020)
Intégration des appareils de terrain (FDI) - Partie 115-2: Profils - Modbus-RTU (IEC
62769-115-2:2020)
Ta slovenski standard je istoveten z: EN IEC 62769-115-2:2020
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 62769-115-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 62769-115-2:2021
SIST EN 62769-115-2:2021
EUROPEAN STANDARD EN IEC 62769-115-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 25.040.40; 35.100.05
English Version
Field device integration (FDI) - Part 115-2: Profiles - Modbus-
RTU
(IEC 62769-115-2:2020)
Intégration des appareils de terrain (FDI) - Partie 115-2: Feldgeräteintegration (FDI) - Teil 115-2: Profile - Modbus-
Profils - Modbus-RTU RTU
(IEC 62769-115-2:2020) (IEC 62769-115-2:2020)
This European Standard was approved by CENELEC on 2020-10-30. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62769-115-2:2020 E

SIST EN 62769-115-2:2021
European foreword
The text of document 65E/740/FDIS, future edition 1 of IEC 62769-115-2, prepared by SC 65E
"Devices and integration in enterprise systems" 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 62769-115-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-07-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-10-30
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 62769-115-2:2020 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 61784-2 NOTE Harmonized as EN IEC 61784-2
IEC 61804 (series) NOTE Harmonized as EN IEC 61804 (series)

SIST EN 62769-115-2:2021
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 61784-1 - Industrial communication networks - Profiles EN IEC 61784-1 -
Part 1: Fieldbus profiles
IEC 61804 series Function blocks (FB) for process control and EN IEC 61804 series
electronic device description language
(EDDL)
IEC 62541-100 - OPC Unified Architecture - Part 100: Device EN 62541-100 -
Interface
IEC 62769-2 - Field Device Integration (FDI) - Part 2: FDI - -
Client
IEC 62769-4 - Field Device Integration (FDI) - Part 4: FDI - -
Packages
IEC 62769-5 - Field Device Integration (FDI) - Part 5: FDI - -
Information Model
IEC 62769-7 - Field Device Integration (FDI) - Part 7: FDI - -
Communication Devices
MOD06 - Modbus.org: MODBUS over serial line - -
specification and implementation guide V1.02
MOD12 - Modbus.org: MODBUS application protocol - -
specification, V1.1b3
SIST EN 62769-115-2:2021
SIST EN 62769-115-2:2021
IEC 62769-115-2 ®
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Field device integration (FDI) –

Part 115-2: Profiles – Modbus-RTU

Intégration des appareils de terrain (FDI) –

Partie 115-2: Profils – Modbus-RTU

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8859-7

SIST EN 62769-115-2:2021
– 2 – IEC 62769-115-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative References . 5
3 Terms, definitions, abbreviated terms and conventions . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 6
3.3 Conventions . 6
3.3.1 EDDL syntax. 6
3.3.2 Capitalizations . 6
4 PSDs for ModbusRTU . 7
4.1 General . 7
4.2 Header . 7
4.3 ProtocolIdentifier . 9
4.4 Address . 9
4.5 Manufacturer . 9
4.6 DeviceModel . 9
4.7 DeviceRevision . 9
4.8 SerialNumber . 9
4.9 Tag . 9
4.10 ProfileId . 9
4.11 Version . 9
4.12 ProtocolSupportFile . 9
5 Example for ModbusRTU . 10
5.1 General . 10
5.2 Called functionality (success) . 10
5.3 Called functionality (Error) . 10
5.4 EDD command . 11
6 Scanning . 11
Bibliography . 12

Table 1 – Modbus functions and their representation in an EDD HEADER . 7
Table 2 – Example Modbus PDU . 10
Table 3 – Example Modbus PDU with error response . 10

SIST EN 62769-115-2:2021
IEC 62769-115-2:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIELD DEVICE INTEGRATION (FDI) –

Part 115-2: Profiles – Modbus-RTU

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62769-115-2 has been prepared by subcommittee 65E: Devices
and integration in enterprise systems, of IEC technical committee 65: Industrial-process
measurement, control and automation.
FCG_TS62769-115-2_Profiles_PSD ModbusRTU_1.1.0.4, a specification of the FieldComm
Group, PROFIBUS Nutzerorganisation e.
...

SLOVENSKI STANDARD
01-februar-2021
Vključitev procesne terenske naprave (FDI) - 115-2. del: Profili - Modbus-RTU (IEC
62769-115-2:2020)
Field device integration (FDI) – Part 115-2: Profiles – Modbus-RTU (IEC 62769-115-
2:2020)
Feldgeräteintegration (FDI) - Teil 115-2: Profile - Modbus-RTU (IEC 62769-115-2:2020)
Intégration des appareils de terrain (FDI) - Partie 115-2: Profils - Modbus-RTU (IEC
62769-115-2:2020)
Ta slovenski standard je istoveten z: EN IEC 62769-115-2:2020
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62769-115-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 25.040.40; 35.100.05
English Version
Field device integration (FDI) - Part 115-2: Profiles - Modbus-
RTU
(IEC 62769-115-2:2020)
Intégration des appareils de terrain (FDI) - Partie 115-2: Feldgeräteintegration (FDI) - Teil 115-2: Profile - Modbus-
Profils - Modbus-RTU RTU
(IEC 62769-115-2:2020) (IEC 62769-115-2:2020)
This European Standard was approved by CENELEC on 2020-10-30. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62769-115-2:2020 E

European foreword
The text of document 65E/740/FDIS, future edition 1 of IEC 62769-115-2, prepared by SC 65E
"Devices and integration in enterprise systems" 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 62769-115-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-07-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-10-30
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 62769-115-2:2020 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 61784-2 NOTE Harmonized as EN IEC 61784-2
IEC 61804 (series) NOTE Harmonized as EN IEC 61804 (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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61784-1 - Industrial communication networks - Profiles EN IEC 61784-1 -
Part 1: Fieldbus profiles
IEC 61804 series Function blocks (FB) for process control and EN IEC 61804 series
electronic device description language
(EDDL)
IEC 62541-100 - OPC Unified Architecture - Part 100: Device EN 62541-100 -
Interface
IEC 62769-2 - Field Device Integration (FDI) - Part 2: FDI - -
Client
IEC 62769-4 - Field Device Integration (FDI) - Part 4: FDI - -
Packages
IEC 62769-5 - Field Device Integration (FDI) - Part 5: FDI - -
Information Model
IEC 62769-7 - Field Device Integration (FDI) - Part 7: FDI - -
Communication Devices
MOD06 - Modbus.org: MODBUS over serial line - -
specification and implementation guide V1.02
MOD12 - Modbus.org: MODBUS application protocol - -
specification, V1.1b3
IEC 62769-115-2 ®
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Field device integration (FDI) –

Part 115-2: Profiles – Modbus-RTU

Intégration des appareils de terrain (FDI) –

Partie 115-2: Profils – Modbus-RTU

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8859-7

– 2 – IEC 62769-115-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative References . 5
3 Terms, definitions, abbreviated terms and conventions . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 6
3.3 Conventions . 6
3.3.1 EDDL syntax. 6
3.3.2 Capitalizations . 6
4 PSDs for ModbusRTU . 7
4.1 General . 7
4.2 Header . 7
4.3 ProtocolIdentifier . 9
4.4 Address . 9
4.5 Manufacturer . 9
4.6 DeviceModel . 9
4.7 DeviceRevision . 9
4.8 SerialNumber . 9
4.9 Tag . 9
4.10 ProfileId . 9
4.11 Version . 9
4.12 ProtocolSupportFile . 9
5 Example for ModbusRTU . 10
5.1 General . 10
5.2 Called functionality (success) . 10
5.3 Called functionality (Error) . 10
5.4 EDD command . 11
6 Scanning . 11
Bibliography . 12

Table 1 – Modbus functions and their representation in an EDD HEADER . 7
Table 2 – Example Modbus PDU . 10
Table 3 – Example Modbus PDU with error response . 10

IEC 62769-115-2:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIELD DEVICE INTEGRATION (FDI) –

Part 115-2: Profiles – Modbus-RTU

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62769-115-2 has been prepared by subcommittee 65E: Devices
and integration in enterprise systems, of IEC technical committee 65: Industrial-process
measurement, control and automation.
FCG_TS62769-115-2_Profiles_PSD ModbusRTU_1.1.0.4, a specification of the FieldComm
...