Description

The Honeywell TC-FPCXX2 is a Fieldbus Power Conditioner (FPC) module engineered specifically for FOUNDATION Fieldbus H1 networks within the Honeywell Experion® Process Knowledge System (PKS). As a critical infrastructure component, the Honeywell TC-FPCXX2 converts standard 24 V DC plant power into a regulated, low-noise, and current-limited supply suitable for powering up to 16 field devices—such as transmitters, valve positioners, and analyzers—on a single Fieldbus segment. Its design ensures stable communication integrity while meeting stringent safety requirements for use in hazardous environments.

Part of Honeywell’s comprehensive I/O and field connectivity portfolio, the Honeywell TC-FPCXX2 features built-in short-circuit protection, reverse polarity safeguarding, and robust filtering to suppress electrical noise that could otherwise disrupt digital signal transmission. The module supports both redundant and non-redundant power architectures and integrates seamlessly into Honeywell’s Remote Fieldbus Interface (RFI) or Local Fieldbus Interface (LFI) cabinets. With its compact form factor and DIN-rail mounting capability, the Honeywell TC-FPCXX2 enables efficient panel layout while delivering reliable power conditioning essential for maintaining continuous process visibility and control in demanding industrial settings.

Technical Specifications

Main Features and Advantages

Reliable power delivery for mission-critical field networks: The Honeywell TC-FPCXX2 maintains a tightly regulated 17.5 V output even under dynamic load conditions caused by device initialization or communication bursts. This stability prevents voltage droop that could lead to Fieldbus communication errors or device dropouts—common failure modes in poorly conditioned segments.

Intrinsic safety and fault tolerance built-in: Designed for use in Class I, Division 2 or Zone 2 hazardous locations, the Honeywell TC-FPCXX2 includes galvanic isolation and current-limiting circuitry that prevents fault propagation. In the event of a short circuit on the Fieldbus trunk, the module automatically limits current to safe levels and resumes normal operation once the fault is cleared—eliminating the need for manual resets or fuse replacements.

Seamless integration with Experion PKS architecture: The Honeywell TC-FPCXX2 is fully recognized by Honeywell’s system engineering tools, enabling automatic topology mapping and health monitoring via the Field Device Manager (FDM). Technicians can view real-time voltage, current, and fault status directly in the operator console—accelerating diagnostics during commissioning or troubleshooting.

Compact and service-friendly design: Occupying only one standard terminal block width (22.5 mm), the Honeywell TC-FPCXX2 conserves valuable cabinet space. Its plug-in terminals allow pre-wiring, and the front-facing LEDs provide immediate visual indication of power (green) and fault (red) conditions—critical during night shifts or emergency response scenarios in refineries or offshore platforms.

Application Field

The Honeywell TC-FPCXX2 is predominantly deployed in continuous process industries that rely on FOUNDATION Fieldbus for smart device integration within the Honeywell Experion PKS ecosystem. In oil & gas upstream facilities, it powers Fieldbus segments connecting pressure transmitters, multiphase flow meters, and emergency shutdown valves on well pads—often in remote, unattended locations where reliability is paramount. Within petrochemical and chemical plants, the Honeywell TC-FPCXX2 supports complex reactor control loops involving temperature, level, and pH sensors, all communicating over a single twisted-pair cable to reduce wiring costs and improve diagnostic coverage.

In power generation, especially combined-cycle and biomass plants, the Honeywell TC-FPCXX2 enables digital integration of boiler feedwater controls, flue gas analyzers, and turbine bypass systems—enhancing efficiency through advanced asset management. Water and wastewater treatment facilities also utilize this module to connect smart actuators and turbidity sensors across large geographic footprints, leveraging Fieldbus’s long-distance capability (up to 1900 m without repeaters). During brownfield modernization, the Honeywell TC-FPCXX2 often replaces older discrete power supplies, consolidating infrastructure while enabling full digital device calibration and predictive maintenance via AMS Suite.

Related Products

• TC-FPCXX1: Older variant with lower current rating (300 mA)

• TC-FBKIT: Fieldbus installation kit including terminators and connectors

• TC-RFIA: Remote Fieldbus Interface Assembly (chassis that houses TC-FPCXX2)

• TC-LFIA: Local Fieldbus Interface Assembly for near-controller deployment

• FF-H1-TERM: Passive Fieldbus terminator (required at segment ends)

• Honeywell FDM: Field Device Manager software for device diagnostics

• TC-PWR24: 24 V DC power supply module for feeding TC-FPCXX2

Installation and Maintenance

Pre-installation preparation: Before installing the Honeywell TC-FPCXX2, verify that the input power source is a clean, fused 24 V DC supply compliant with IEC 61010. Ensure the Fieldbus segment adheres to FOUNDATION Fieldbus physical layer rules—maximum 380 mA load, proper shielding, and exactly two terminators (one at each end). Mount the module on a grounded DIN rail and torque terminal screws to 0.5 N·m to prevent loosening due to vibration.

Maintenance recommendations: The Honeywell TC-FPCXX2 requires no routine calibration but should be visually inspected quarterly for signs of overheating, corrosion, or loose connections. Monitor the red FAULT LED—if illuminated, check for short circuits, excessive device count, or damaged cabling. Use a Fieldbus analyzer to confirm signal quality if intermittent communication occurs. Always keep a spare Honeywell TC-FPCXX2 on hand; rapid replacement minimizes downtime in continuous processes where every minute of lost production carries significant cost.