FBM214B | Foxboro HART Communication Input Module
Foxboro · Industrial Automation & Electrical
Description The FBM214B is a high-performance HART communication module with eight isolated analog input channels supporting 4–20 mA signals. It enables reliable bi-directional communication with HART field devices while maintaining analog signal acquisition. Designed for use in harsh industrial environments, it delivers high accuracy and supports individual or externally powered loops. The module is ideal for systems requiring advanced diagnostics, redundancy, and compatibility with Foxboro Evo platforms. Technical Specifications Condition New/Never Used Surplus Brand Foxboro Category Transmission Distribution Relays Part Number FBM214B Subcategory Voltage/Phase Monitor Input Channels 8 analog, 4–20 mA with HART support Input Type Analog (with HART FSK digital overlay) Isolation Per-channel galvanic isolation Input Signal Update Rate 100 ms Resolution 15-bit Input Accuracy ±0.03% full scale HART Communication Rate 2 messages per second Compliance Voltage (internal) 18.5 VDC at 20.5 mA Input Resistance 280–302 Ω depending on power source Redundancy Support Yes, with dual path Fieldbus Housing Material Extruded aluminum Communication Interface 2 Mbps Fieldbus (redundant A/B paths) Operating Environment Class G3, rugged industrial Mounting Type Modular baseplate (DIN or rack) Dimensions (H x W x D) 114 x 45 x 104 mm Compatibility I/A Series v8.2–8.8, Control Core v9.0+ Weight ~0.93 lb (420 g) Information About FBM214B The FBM214B is a HART-enabled analog input module developed by Foxboro for integration within the Foxboro Evo and I/A Series control systems. Each of its eight channels can handle both standard 4–20 mA signals and superimposed HART digital communications, with per-channel galvanic isolation and onboard FSK modems. The module offers point-to-point communication with HART devices, supporting up to two messages per second, and ensures high signal integrity with a sigma-delta A/D conversion process. For installations using shared external power supplies, a Cable Balun module is required to prevent crosstalk between channels. Key Features: HART and Analog Support: Each channel supports both standard 4–20 mA analog and HART FSK communication. Per-Channel Isolation: Galvanically isolated channels prevent signal interference and ground loops. Integrated FSK Modems: A dedicated modem per channel enables bi-directional communication with HART field devices. High Accuracy Conversion: Sigma-delta A/D converters provide precise signal conversion every 100 ms. Cable Balun Compatibility: External power setups can use balun modules to maintain communication integrity. Visual Indicators: Front-panel LEDs indicate operational status and per-channel activity. Harsh Environment Design: Rugged aluminum housing supports G3-level environmental tolerance. Hot-Swappable Module: Allows safe removal and replacement without disconnecting field wiring. The FBM214B delivers the reliability and precision required for advanced analog input acquisition and HART integration in industrial control systems.
Brand: Foxboro · Category: Industrial Automation & Electrical
Key features
- HART and Analog Support: Each channel supports both standard 4–20 mA analog and HART FSK communication.
- Per-Channel Isolation: Galvanically isolated channels prevent signal interference and ground loops.
- Integrated FSK Modems: A dedicated modem per channel enables bi-directional communication with HART field devices.
- High Accuracy Conversion: Sigma-delta A/D converters provide precise signal conversion every 100 ms.
- Cable Balun Compatibility: External power setups can use balun modules to maintain communication integrity.
- Visual Indicators: Front-panel LEDs indicate operational status and per-channel activity.
- Harsh Environment Design: Rugged aluminum housing supports G3-level environmental tolerance.
- Hot-Swappable Module: Allows safe removal and replacement without disconnecting field wiring.
Specifications
| Manufacturer part number | FBM214B |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Foxboro |
| Category | Transmission Distribution Relays |
| Part Number | FBM214B |
| Subcategory | Voltage/Phase Monitor |
| Input Channels | 8 analog, 4–20 mA with HART support |
| Input Type | Analog (with HART FSK digital overlay) |
| Isolation | Per-channel galvanic isolation |
| Input Signal Update Rate | 100 ms |
| Resolution | 15-bit |
| Input Accuracy | ±0.03% full scale |
| HART Communication Rate | 2 messages per second |
| Compliance Voltage (internal) | 18.5 VDC at 20.5 mA |
| Input Resistance | 280–302 Ω depending on power source |
| Redundancy Support | Yes, with dual path Fieldbus |
| Housing Material | Extruded aluminum |
| Communication Interface | 2 Mbps Fieldbus (redundant A/B paths) |
| Operating Environment | Class G3, rugged industrial |
| Mounting Type | Modular baseplate (DIN or rack) |
| Dimensions (H x W x D) | 114 x 45 x 104 mm |
| Compatibility | I/A Series v8.2–8.8, Control Core v9.0+ |
| Weight | ~0.93 lb (420 g) |
| Product type | Voltage/Phase Monitor |
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