Key Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | DCS Control Processor Module |
| Manufacturer | Foxboro (Schneider Electric / Invensys) |
| Model | FBM214B P0927AH |
| Processor | 32-bit industrial RISC |
| Instruction Speed | 0.1 μs/boolean, 0.5 μs/floating point |
| Program Memory | 8 MB |
| Data Memory | 4 MB |
| Input Power | 24 VDC, 10W |
| Communication | Ethernet 10/100BaseTX, ControlNet, RS-232 |
| FBM Support | Up to 32 FBM modules (128 with FEM100) |
| Redundancy | Dual-module hot standby, bit-by-bit data matching |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Dimensions | 140 mm × 165 mm × 45 mm |
| Weight | 0.6 kg |
| Protection Rating | IP20 |
| Enclosure | Die-cast aluminum, G3 harsh environment rated |
| Condition | Surplus / tested used stock unless otherwise confirmed |
| Warranty | 12 months functional warranty after testing |
Product Introduction
FOXBORO FBM214B P0927AH is a 32-bit RISC control processor module within the Foxboro I/A Series distributed control system. It executes regulation, logic, timing, and sequence control tasks for process automation in power generation, oil and gas, chemical, and manufacturing applications.The FBM214B P0927AH supports hot-standby redundancy with bit-by-bit data consistency verification, dual Ethernet 10/100BaseTX communication, and direct connection to up to 32 field bus modules (expandable to 128 via FEM100). Its die-cast aluminum housing is rated for G3 harsh environments with high dust and electromagnetic interference. Because I/A Series controllers are firmware- and configuration-dependent, replacement units must match the existing system revision.
Installation & Configuration Guide
Preparation — 10 min
- Lock out and tag out the control cabinet power supply.
- Confirm zero energy with a verified voltage tester.
- Photograph the existing FBM214B P0927AH nameplate, baseplate position, fiber optic connections, and wiring.
- Verify the replacement unit matches the model, firmware revision, and baseplate type (P0927AH).
- Prepare a regulated 24 VDC power supply, multimeter, ESD-safe handling materials, and Foxboro configuration tools.
Removal — 5–10 min
- Isolate cabinet power before disconnecting any cables.
- Label each communication and power cable before removal.
- Disconnect Ethernet, RS-232, and fiber optic connections.
- Release the module from the baseplate carefully — note the locking mechanism.
- Inspect the baseplate for bent pins, corrosion, or heat damage.
Installation — 10 min
- Seat the FBM214B P0927AH onto the P0927AH baseplate, ensuring all connector pins align.
- Reconnect Ethernet 10/100BaseTX, ControlNet, and RS-232 cables to the correct ports.
- Connect 24 VDC supply with correct polarity.
- Verify no cable strain on rear connectors.
- Confirm fiber optic links (if used) are clean and properly seated.
Power-On & Test — 10 min
- Apply 24 VDC power and observe the module status LEDs.
- Confirm normal boot sequence and network registration on the I/A Series control network.
- Verify communication with connected FBM modules and upstream SCADA/HMI.
- Test at least one control loop, one alarm point, and one data acquisition channel.
- Record the unit’s serial number, firmware version, and test results in the maintenance log.
Troubleshooting Quick Reference
| Symptom | Most Likely Cause | First Check |
|---|---|---|
| Module does not power up | No 24 VDC, reversed polarity, or blown fuse | Measure 24 VDC at the module power input terminals |
| No network communication | Faulty Ethernet cable, wrong IP config, or port mismatch | Verify 10/100BaseTX link LED and IP settings |
| Redundancy switchover failure | Firmware mismatch between primary and standby | Compare firmware versions on both modules |
| FBM modules not detected | Baseplate connection issue or FBM address conflict | Reseat module; check FBM addressing |
| Intermittent faults | Loose baseplate connection or EMI | Reseat module; check grounding and cable routing |
| High CPU load / slow response | Oversized control program or communication flood | Review task load and network traffic |
Dimensions, Mounting & Wiring Notes
- Dimensions: 140 mm × 165 mm × 45 mm (H × W × D)
- Weight: 0.6 kg
- Mounting Method: Baseplate-mounted (P0927AH baseplate), installed within I/A Series control cabinet
- Power Wiring: 24 VDC regulated supply. Verify polarity before energizing. 10W maximum power draw.
- Communication Wiring: Ethernet 10/100BaseTX via RJ45, RS-232 serial, and ControlNet. Confirm cable type and pinout for each interface.
- Fiber Optic: If connected to Foxboro Evo control network via fiber, inspect connectors for contamination before mating.
- Environmental: IP20 rated. Install within a protected control cabinet. Operating temperature range is 0°C to 60°C.
FAQ
Is the FOXBORO FBM214B P0927AH still manufactured?
Not confirmed here. FBM214B P0927AH is generally treated as a legacy I/A Series controller, so availability typically depends on surplus or tested used stock. Always verify condition, firmware revision, and test status before purchase.Can I swap any FBM214 into my P0927AH baseplate?
No. The FBM214 family includes multiple revisions (FBM214, FBM214B, FBM214C, FBM214D) with different part numbers and firmware. Mixing revisions can cause communication failures or redundancy faults. Match the exact model and revision.I need this for an emergency DCS repair — what info should I send?
Send the FBM214B P0927AH nameplate photo, firmware version, baseplate photo, network topology, and a description of the fault. That is the fastest way to confirm compatibility and availability.Does it support hot-standby redundancy?
Yes. FBM214B P0927AH supports dual-module hot standby with bit-by-bit data matching. Both modules must run matching firmware for redundancy to function correctly.What configuration software does it use?
Foxboro I/A Series engineering tools are used for configuration and programming. The exact tool version should match the installed firmware and existing control strategy.Can I use this module without the P0927AH baseplate?
No. The FBM214B requires its designated baseplate for power distribution, backplane communication, and mechanical mounting. Verify the baseplate part number matches before installation.What is the power requirement?
24 VDC regulated supply at 10W maximum. Confirm correct polarity before energizing. Redundant power supply configuration is supported.
