Foxboro FBM218-RH922VW I O Module

• Foxboro FBM218-RH922VW I/O Module (IMPORTANT: it is NOT a PLC module — it is a Foxboro DCS Fieldbus I/O Interface Module)

• Product Information

  • Brand: Foxboro (Schneider Electric / Invensys)
  • Model: FBM218-RH922VW
  • Series: I/A Series Fieldbus Module (FBM)
  • Type: Redundant analog output + HART communication interface module
  • Channels: 8 isolated output channels
  • Signal type: 4–20 mA + HART FSK digital communication
  • Function: Field device control + signal output to actuators/valves
  • Redundancy: Dual-module hot standby (Master / Tracker system)
  • Communication: Redundant 2 Mbps HDLC fieldbus to DCS controller
  • Installation: Rack-mounted FBM baseplate system

  ---

  What it actually is

  This module is used to send control signals from DCS to field devices, such as:

  • Control valves
  • I/P converters
  • Positioners (like Foxboro SMI series)
  • Actuators
  • Industrial instrumentation loops

  It also supports HART digital communication on the same 4–20 mA loop.

  It does NOT operate independently.

  ---

  System Role (Simple)

  Sensors / process data
  → Foxboro DCS CPU (control system)
  → FBM218-RH922VW (this module)
  → 4–20 mA + HART signal
  → valve / actuator / field device

  So it acts like a “smart output interface card for DCS control loops.”

  ---

  Key Features

  • 8-channel isolated analog outputs
  • Supports 4–20 mA + HART communication
  • Fully galvanically isolated channels
  • High-accuracy current output (~±0.05% span)
  • Redundant module pairing for high availability
  • Industrial-grade design for harsh environments
  • Hot-swap capable in DCS racks

  ---

  Typical Applications

  • Oil & gas DCS systems
  • Refineries
  • Chemical processing plants
  • Power generation stations
  • Process control valve automation
  • Large-scale distributed control systems (Foxboro I/A Series)

  ---

  Advantages

  • High reliability (redundant architecture)
  • Precise analog output control
  • Supports smart field devices via HART
  • Reduces system downtime (failover redundancy)
  • Designed for continuous 24/7 industrial operation

  ---

  Important Notes

  • Not PLC ❌
  • Not controller CPU ❌
  • Not standalone module ❌
  • Not power module ❌
  • It is a Foxboro DCS Fieldbus I/O output module (FBM218 series) ✔
  • Must operate within Foxboro I/A Series system architecture

  ---

  Precautions

  • Must be installed in correct FBM baseplate slot
  • Requires compatible DCS controller (FCM/FCP system)
  • Not interchangeable with PLC output cards
  • Incorrect replacement may affect entire control loop
  • Handle as ESD-sensitive industrial PCB 

The structure and details of the product：

Please make an inquiry for more models

FOXBORO D0148MU-A D0148MS-A

FOXBORO D0148TG 

FOXBORO D0148WD

FOXBORO D0149EQ

FOXBORO D0149PC

FOXBORO D0910S

FOXBORO D3001EL

FOXBORO FBM15 DM400YR

FOXBORO DM400YT FBM17

FOXBORO DM900HU FBM26

FOXBORO DM900NY FBM27

FOXBORO DM900NY-0A

FOXBORO DPW02

FOXBORO DRA02

FOXBORO DYN2-90200

FOXBORO E11AH-ISAC2

FOXBORO E11DM 

FOXBORO E11GM-HSAA1

FOXBORO E11GM-ISAB2

FOXBORO E170DM 

FOXBORO E17DM-ISM31A

FOXBORO E20S-I2FB6

FOXBORO E27-AF-SAEA5

FOXBORO E27-ID-SA-STA

FOXBORO E45FL

FOXBORO E69F-BI2-S

FOXBORO E69F-TI2-JRS

FOXBORO E69P-BI1V-RS

FOXBORO E83FA02S1TTEBB

FOXBORO E96P-IA-BECS-E/XN-F

FOXBORO E96P-IA-CCS-E/FN-A

FOXBORO E96S-IA Magnetic

FOXBORO E96S-IA-C-CS-E/XN-F

FOXBORO ECEP-13420A SER-A

FOXBORO F0109AC-B

FOXBORO F0109BV-H

FOXBORO FBM15

FOXBORO FBM231

FOXBORO FBM239 P0927AG

FOXBORO 135S-C-L

FOXBORO 136-7-11

FOXBORO 230SZ-L

Other best-selling products：