The Schneider Electric / Invensys / Foxboro FBM201 is an 8-channel analog input interface module designed for industrial control systems. It acquires 0–20 mA DC signals from field devices with galvanic isolation per channel, delivering ±0.03% accuracy and independent Sigma-Delta conversion. The module integrates into distributed I/O networks via redundant 2 Mbps Fieldbus communication with FCM or FCP controllers, supporting HART-compatible signals and configurable integration periods.
Technical Specifications
• Input Channels: 8 isolated, independent channels
• Signal Range: 0–20 mA DC per channel
• Analog Accuracy: ±0.03% of span (includes linearity)
• Temperature Coefficient: ±50 ppm/°C
• Input Impedance: 61.5 Ω nominal
• A/D Conversion: Independent Sigma-Delta converter per channel
• Common Mode Rejection: >100 dB at 50/60 Hz
• Normal Mode Rejection: >95 dB at 50/60 Hz
• HART Compatibility: Electrically compatible with standard HART signals
– Key Features
• Redundant 2 Mbps Fieldbus communication with FCM or FCP
• Software-configurable integration period and rate-of-change limits
• Maximum termination cable length: 30 meters (98 feet)
• Input voltage (redundant): 24 V dc ±5%, −10%
• Power consumption: 7 W maximum
• Heat dissipation: 3 W maximum
• Compact form factor: 130 mm H × 25 mm W × 150 mm D (includes connectors) or standard: 102–114 mm H × 45 mm W × 104 mm D
• Module weight: 0.284 kg
• Enclosure: Rugged extruded aluminum (standard) or ABS plastic (compact)
– Typical Applications
• Industrial automation and process control
• Field device signal acquisition and integration
• Distributed I/O systems requiring high noise immunity
– Compatibility & Integration
Mounts on 16-slot horizontal baseplate compatible with DIN rail or 19-inch rack installation. Termination assemblies support 32 mm and 35 mm DIN rail standards. Cabling distance depends on compliance voltage (22.8 VDC), wire resistance, and field device voltage drop.
