Foxboro FBM200 Series Modules FBM216B P0927AJ

Technical Dossier

Product Details And Specifications

Foxboro FBM200 Series Technical Notes

The Foxboro FBM200 series represents one of the most widely deployed distributed control system (DCS) I/O module families in global heavy industry. Installed across petrochemical refineries, nuclear power stations, LNG terminals, pulp and paper mills, and offshore platforms, the FBM200 series serves as the field interface backbone of the Foxboro I/A Series and Foxboro Evo DCS platforms. Its modular architecture, redundancy support, and HART communication capability make it a long-term standard in process automation environments where uptime requirements exceed 99.9%. The FBM216B P0927AJ specifically provides redundant-ready HART analog input functionality, designed for critical measurement loops requiring both signal integrity and fieldbus diagnostics.

The Evolution of FBM200 Architecture

The FBM200 series was introduced as part of Foxboro's transition from the earlier FBM100 baseplate-mounted I/O architecture to a more compact, DIN-rail and rack-compatible modular format. Early FBM200 modules operated exclusively within the I/A Series DCS environment, communicating over the Nodebus and Fieldbus H1 infrastructure. As the platform matured through the 1990s and 2000s, Foxboro introduced HART-enabled variants (designated by the "B" suffix in models such as FBM201B, FBM204B, FBM216B) to support smart field device diagnostics without additional wiring infrastructure.

Key compatibility milestones: FBM200 modules interface with CP60, CP270, CP280, and CP40B control processors. Redundant configurations require matched module pairs and compatible redundancy cables. HART-enabled variants require CP270 or later for full HART pass-through support.

FBM200 Full Catalog & Functionalities (SKU List)

The following SKUs represent confirmed, commonly sourced models within the Foxboro FBM200 series. Each entry includes the primary functional classification and a concise technical descriptor.

Analog Input Modules (AI)

• FBM201 P0914TQ: 8-channel 4–20 mA analog input, non-HART, single-ended
• FBM201B P0914YS: 8-channel 4–20 mA analog input with HART rev 5/6 support
• FBM202 P0914TR: 16-channel analog input, low-density field termination
• FBM204 P0914TT: 8-channel thermocouple/mV analog input module
• FBM204B P0914YV: 8-channel thermocouple input with HART diagnostics enabled
• FBM207 P0914TW: 8-channel RTD/resistance analog input, 2/3/4-wire configurable
• FBM216 P0916GX: 16-channel redundant-ready analog input, standard accuracy
• FBM216B P0927AJ: 16-channel redundant-ready HART analog input, enhanced diagnostics
• FBM217 P0916GY: 8-channel high-accuracy analog input, ±0.05% full scale

Analog Output Modules (AO)

• FBM230 P0914TS: 8-channel 4–20 mA analog output, non-HART
• FBM230B P0914YT: 8-channel 4–20 mA analog output with HART rev 5/6
• FBM232 P0914TU: 4-channel high-drive analog output, up to 750 Ω loop load

Digital Input Modules (DI)

• FBM241 P0914TV: 32-channel 24 VDC digital input, isolated per group of 8
• FBM242 P0914TY: 16-channel 120 VAC digital input, optically isolated
• FBM243 P0914TZ: 16-channel 240 VAC digital input, high-voltage field interface

Digital Output Modules (DO)

• FBM251 P0914UA: 16-channel 24 VDC digital output, 0.5 A per channel sourcing
• FBM252 P0914UB: 8-channel relay output, SPDT contacts, 2 A resistive

Communication & Specialty Modules

• FBM270 P0916GZ: FOUNDATION Fieldbus H1 interface module, 2-segment
• FBM271 P0916HA: PROFIBUS DP interface module, single master port

Sourcing Hard-to-Find & Obsolete FBM200 Parts

The FBM200 series is classified as a mature product line by Schneider Electric (current Foxboro brand owner). Several sub-variants have been formally discontinued, with no direct OEM replacement stocked through standard distribution channels. DriveKNMS maintains a dedicated inventory of surplus, refurbished, and new-surplus FBM200 modules sourced from decommissioned plant assets, authorized liquidations, and long-term storage facilities.

For end-users operating I/A Series or Foxboro Evo systems under long-term service agreements, DriveKNMS provides: confirmed part number cross-referencing, functional equivalency verification between P-code revisions, and batch procurement for multi-year maintenance contracts. Modules such as FBM216B P0927AJ are stocked specifically because their redundancy and HART capability make them non-substitutable in safety-critical loops without engineering re-qualification.

Quality Control for the FBM200 Range

FBM200 modules incorporate a multi-layer backplane bus architecture that requires specialized test procedures beyond standard I/O verification. DriveKNMS applies the following QC protocol to all FBM200 units prior to shipment:

• Backplane bus continuity test: Verifies all Nodebus and power rail pins against OEM pinout specifications.
• HART signal injection test: For HART-enabled variants (FBM201B, FBM204B, FBM216B, FBM230B), a 1200 baud FSK signal is injected on each channel to confirm HART modem integrity.
• Analog accuracy calibration: Each AI/AO channel is verified at 0%, 25%, 50%, 75%, and 100% of rated range using traceable reference instruments.
• Redundancy switchover test: For redundant-ready modules, active/standby switchover is simulated to confirm sub-100 ms bumpless transfer.
• Thermal burn-in: Units are powered at rated voltage for a minimum of 24 hours at 40°C ambient prior to final inspection.
• Firmware revision verification: P-code suffix is confirmed against the physical module label and internal EEPROM revision register.