IEC 62769-115-2:2020

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

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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

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIELD DEVICE INTEGRATION (FDI) –

Part 115-2: Profiles – Modbus-RTU

FOREWORD
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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. V., OPC Foundation and FDT Group, has served as
a basis for the elaboration of this standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65E/740/FDIS 65E/744/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 4 – IEC 62769-115-2:2020 © IEC 2020
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62769 series, published under the general title Field Device
Integration (FDI), can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amend
...