FOXBORO FBM233 (P0926GX) 8-Channel Analog Output Module – Genuine OEM, In Stock for I/A Series DCS!

The FOXBORO FBM233 (manufacturer part number P0926GX) is an 8-channel analog output module designed for the Foxboro I/A Series distributed control system (DCS). It delivers precise 4–20 mA current signals to field devices such as control valves, variable frequency drives (VFDs), positioners, and actuators—enabling closed-loop process control in demanding industrial environments.

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Description

The FOXBORO FBM233 (manufacturer part number P0926GX) is an 8-channel analog output module designed for the Foxboro I/A Series distributed control system (DCS). It delivers precise 4–20 mA current signals to field devices such as control valves, variable frequency drives (VFDs), positioners, and actuators—enabling closed-loop process control in demanding industrial environments.

Each output channel on the FBM233 is galvanically isolated from adjacent channels and from the system ground, preventing ground loops and protecting the DCS from field-side faults like short circuits or backfeed voltages. The module supports HART communication pass-through, allowing digital commands (e.g., valve calibration or diagnostics) to be superimposed on the analog output signal—critical for smart device management in modern plants.

As part of Foxboro’s modular Fieldbus Module (FBM) architecture, the FBM233 installs into standard I/A Series I/O chassis and connects via redundant Fieldbus Interface Modules (FIMs) to the controller. This design ensures high availability, deterministic response, and hot-swappability—essential for continuous operations in oil & gas, power, and chemical processing where unplanned downtime is unacceptable.

FBM233 P0926GX FOXBORO

FBM233 P0926GX FOXBORO

Technical Specifications

Parameter Name Parameter Value
Model Number FBM233 (P0926GX)
Manufacturer Foxboro (Schneider Electric)
Function 8-Channel Analog Output Module
Output Signal Type 4–20 mA (sink/source capable), scalable to 0–20 mA
Load Drive Capability Up to 750 Ω @ 20 mA (with 24 V external supply)
HART Support Yes – bidirectional pass-through for all channels
Channel Isolation Galvanic isolation per channel (±500 V)
Accuracy ±0.05% of span
Resolution 16-bit D/A conversion
Update Rate ~100 ms per channel (configurable via I/A Series software)
Operating Temperature 0°C to +60°C
Power Consumption ~5.5 W (from I/O backplane)
Terminal Block Compatible with FTB233 (screw-type field wiring block)
Certifications CE, UL, CSA, IEC 61010-1

Main Features and Advantages

True HART transparency: The FBM233 enables two-way HART communication over each 4–20 mA loop, allowing operators to perform remote valve calibration, firmware updates, or diagnostics without interrupting control—ideal for integration with asset management systems like AMS Suite.

High reliability with redundancy support: When used with dual FIMs and redundant I/A Series controllers, the FBM233 ensures fail-safe output delivery—even during module replacement or network faults.

Hot-swappable design: Technicians can replace a faulty FBM233 without shutting down the I/O rack or halting the process, minimizing production loss during maintenance.

Advanced diagnostics: Built-in self-monitoring detects open-circuit, short-circuit, over-range, and HART communication errors per channel, with real-time status reporting to the I/A Series operator interface.

Backward and forward compatibility: The FBM233 integrates seamlessly into both legacy I/A Series installations and upgraded EcoStruxure™ Foxboro DCS platforms, supporting brownfield modernization strategies.

Application Field

The FOXBORO FBM233 is critical in industries requiring precise analog output control:

  • Inoil refineries, it drives control valves on crude distillation units, hydrocrackers, and sulfur recovery units—ensuring accurate flow regulation under varying pressure conditions.
  • Incombined-cycle power plants, the FBM233 modulates fuel gas valves, inlet guide vanes, and boiler feedwater pumps based on turbine load demands.
  • Inchemical and pharmaceutical manufacturing, it provides stable setpoints to reactor temperature jackets, pH dosing pumps, and agitator speed drives—supporting batch consistency and regulatory compliance.
  • Inwater treatment facilities, it controls chlorine injection rates, sludge return pumps, and membrane backwash cycles via analog signals.

Across these applications, the FBM233 serves as the trusted link between digital control logic and physical actuation—delivering accuracy, resilience, and intelligence to every control loop.

FBM233 P0926GX FOXBORO

FBM233 P0926GX FOXBORO

Related Products

  • FTB233: Dedicated terminal block for FBM233 (screw-clamp field wiring)
  • FBM232: 8-channel analog input module (complementary to FBM233)
  • FIM02 / FIM03: Fieldbus Interface Modules for I/O bus communication
  • P0914XM: Redundant power supply for FBM chassis
  • FBM207: Thermocouple input module (for temperature sensing)
  • I/A Series Control Processor (CP): Host controller for FBM233 logic execution
  • Schneider Electric EcoStruxure Asset Advisor: Cloud-based analytics using HART data from FBM233 outputs