EN IEC 62453-1:2025

Field device tool (FDT) interface specification - Part 1: Overview and guidance

Publication date:   Nov 18, 2025

Scope

<!-- NEW! -->IEC 62453-1:2025 is available as <a href="https://webstore.iec.ch/publication/109139">IEC 62453-1:2025 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.</br></br>IEC 62453-1:2025 presents an overview and guidance for the IEC 62453 series. It

• explains the structure and content of the IEC 62453 series (see Clause 5);

• provides explanations of some aspects of the IEC 62453 series that are common to many of the parts of the series;

• describes the relationship to some other standards;

• provides definitions of terms used in other parts of the IEC 62453 series.

This third edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

a) introduction of a new implementation technology (defined in IEC TS 62453-43);

b) introduction of an OPC UA information model for FDT (defined in IEC 62453-71).