FBM201

Basic Information

Model: FBM201 (Compact 200 Series)

Manufacturer: Foxboro / Schneider Electric

System: I/A Series DCS, Compact I/O Subsystem

Type: 8-Channel Isolated Analog Input Module

Status: Active (spare parts & available)

Specifications

Channel & Input

Channels: 8 isolated, independent channels

Subtypes & Ranges:

FBM201: 0–20 mA DC (current)

FBM201b: 0–100 mV DC (voltage)

FBM201c: 0–5 V DC (voltage)

FBM201d: 0–10 V DC (voltage)

Input Impedance:

Current (FBM201): 61.5 Ω (nominal)

Voltage (b/c/d): 10 MΩ

Resolution: 16-bit ADC

Accuracy: ±0.03% of span (includes linearity)

Temp Coefficient: ±50 ppm/°C

Isolation: Channel-to-channel & channel-to-ground galvanic isolation; 600V AC for 1 minute (non-permanent)

Communication & Power

Fieldbus: Redundant 2 Mbps module fieldbus (to FCM/FCP)

Power Supply: 24 VDC ±5% / -10% (redundant)

Power Consumption: 7 W (nominal), 4 W max dissipation

Environmental & Mechanical

Operating Temp: -20°C to +70°C (-4°F to +158°F)

Storage Temp: -30°C to +85°C

Humidity: 5%–95% (non-condensing)

Vibration: 0.75 g (5–500 Hz)

Rating: ISA S71.04 Class G3

Dimensions (L×W×H): 104 mm × 25 mm × 130 mm

Weight: 0.284 kg

Mounting: Standard I/A Series compact baseplate

Hot Swappable: Yes (redundant config)

Key Features

8-channel isolated analog input for current/mV/voltage signals

Sigma-delta ADC per channel, 25 ms update rate (configurable)

Galvanic isolation eliminates ground loops and crosstalk

Redundant fieldbus for high reliability

Onboard LED status indicators and self-diagnostics

HART-compatible electrical interface

Compact, rugged ABS enclosure for harsh environments

Application

Interface with 2-wire transmitters (4–20 mA), mV/voltage sensors

Pressure, flow, level, and temperature monitoring in process loops

Chemical, petrochemical, power, oil & gas, and water treatment industries