IEC 62453-309:2022

Overview

IEC 62453-309:2022 - "Field device tool (FDT) interface specification - Part 309: Communication profile integration – IEC 61784 CPF 9" provides guidance for integrating HART® (CPF 9) communication profiles into the FDT framework (IEC 62453-2). It defines the communication and supporting services required for FDT Device Type Managers (DTMs) and hosts to work with HART Basic and Extended HART protocols (based on IEC 61158-5-20 and IEC 61158-6-20). This part does not contain or modify the FDT specification itself; it describes how to map HART protocol behaviour, addressing and data types into the FDT model. Edition 3.0 (2022) is a technical revision that clarifies device data access and support for protocol versions.

Key Topics

• Protocol integration scope: Mapping HART CPF 9 into the FDT architecture; distinction between HART_Basic and Extended_HART.
• Bus category & physical layer mapping: Definitions for HART transport within FDT channels.
• Access to device and instance data: Process Channel objects provided by DTMs and DTM services for read/write access.
• Protocol-specific behaviour: Burst mode subscription, use of device addressing, extended command numbers, handling of failures, time-outs and delayed responses.
• Mixed-protocol topologies: Rules for DTMs when networks contain multiple HART protocol versions or nested gateways.
• WirelessHART considerations: Network topologies, gateway and adapter integration, and FDT topology models for WirelessHART.
• Data models and types: Protocol-specific definitions for communication data types, channel parameters, network management, device identification and scan identification (structured and simple forms).
• Interoperability & conformance: Guidance to ensure consistent behaviour across hosts, DTMs and gateways.

Applications

• Integrating HART field devices into FDT-compliant asset management systems and control systems.
• Implementing or updating DTMs to support HART Basic, Extended HART and WirelessHART.
• Designing FDT host applications that perform topology scans, device identification, burst subscriptions and robust error handling for HART networks.
• Supporting mixed wired and wireless HART deployments and multi-gateway architectures.

Who uses this standard

• Device manufacturers creating HART-enabled instruments and DTMs
• System integrators and control system vendors building FDT hosts or integrating HART devices
• Automation engineers responsible for device lifecycle and asset management
• Test, certification and interoperability labs validating FDT/HART implementations

Related Standards

• IEC 62453-2 (FDT specification) - primary FDT framework
• IEC 61784 CPF 9 - HART Communication Profile Family 9 definition
• IEC 61158-5-20 / IEC 61158-6-20 - HART-related fieldbus protocol parts

Keywords: IEC 62453-309, FDT, HART, CPF 9, IEC 61784, DTM, WirelessHART, communication profile integration, device identification, burst mode.