Overview
IEC 62453-2:2022 (Field Device Tool - FDT interface specification, Part 2: Concepts and detailed description, Edition 3.0 2022-08) defines the core concepts, object models and interaction rules that form the foundation of the FDT framework. The standard explains common principles of the Field Device Tool concept used across engineering systems, configuration programs, monitoring and diagnostic applications and provides the general objects, object behavior and object interactions used by FDT implementations.
Key topics and technical requirements
- Abstract FDT model - Definitions of the Frame Application (FA), Device Type Manager (DTM), channels and other core objects that make up the FDT architecture.
- DTM behavior and state machine - Requirements for DTM instance identification, state management, persistence and synchronization.
- FDT communication - Handling of communication requests, nested and point-to-point communication, error and loss-of-connection strategies.
- Session and use-case model - Actors, session lifecycle and supported use cases (observation, operation, maintenance, planning, OEM service, administration).
- Services specification - Catalog of DTM, presentation object, channel and FA services (installation, topology management, data access, import/export, audit trail, process image validation).
- Topology and address management - Generation of FDT topology, scanning and DTM assignment, address setting and sub-topology management.
- Modularity and bus categories - Support for modular device structures and different fieldbus/communication categories.
- Version interoperability & multi-user scenarios - Rules for DTM/device versions, persistence across versions, locking and synchronization for multi-user environments.
- Redundancy and PLC tool interaction - Guidance for redundant slaves and integration with PLC/process-image tools.
Applications and who uses it
IEC 62453-2:2022 is intended for:
- Device vendors and DTM developers building compliant Device Type Managers.
- Automation system integrators and FA vendors implementing Frame Applications and engineering tools.
- System architects and maintenance engineers who design multivendor, interoperable field device ecosystems.
- OEMs and service providers deploying configuration, diagnostics, and commissioning workflows for process and factory automation.
Practical uses include standardized device configuration, consistent runtime diagnostics, safe multi-user configuration, robust communication handling, and enabling multivendor interoperability in industrial automation projects.
Related standards
- Part of the IEC 62453 (FDT) series; used together with other FDT parts (architecture, conformance and profiles) and complementary fieldbus or industrial communication standards to achieve end-to-end interoperability.
Keywords: IEC 62453-2:2022, FDT, Field Device Tool, Device Type Manager, Frame Application, industrial automation, DTM services, FDT topology, engineering systems, device configuration.
Open preview (PDF)Field device tool (FDT) interface specification - Part 2: Concepts and detailed description
