Foxboro FBM214B P0927AH HART Communication Input Module

Overview

The Foxboro FBM214B P0927AH is a high-performance HART Communication Input Module. It supports eight isolated 4–20 mA input channels, with superimposed digital HART FSK signals. Each channel operates independently and includes galvanic isolation from ground, logic, and other channels.

Technical Specifications

General

• Product Type: HART Communication Input Module

• Model Number: FBM214B P0927AH

• Manufacturer: Foxboro (Schneider Electric)

Inputs

• Channels: 8 individually isolated analog input channels

• Analog Input Range: 4–20 mA

• HART Input: Digital FSK signals over 4–20 mA

• Sense Resistor: 61.5 Ω nominal

• Total Input Resistance: 280 Ω nominal

• Externally Powered Resistance: 282 Ω

• Internally Powered Resistance: 302 Ω

• Accuracy: ±0.03% of full scale

• Temperature Coefficient: 50 ppm/°C

• Resolution: 15-bit Sigma-Delta conversion

• Update Rate: 100 ms per channel

• Integration Time: 500 ms

• Common Mode Rejection: >100 dB at 50/60 Hz

• Normal Mode Rejection: >35 dB at 50/60 Hz

Power to Field Devices

• Internal Supply: 24 V DC ±10% per channel

• Loop Supply Current Limit: <37 mA per channel

• Output Impedance: 20 Ω (including termination)

• Minimum Voltage at Termination: 18.5 V DC at 20.5 mA

Communication

• Protocol: Redundant Fieldbus

• Speed: 2 Mbps

• HART Message Rate: 2 messages per second

Isolation

• Channel-to-Channel: Galvanically isolated

• Channel-to-Ground: Galvanically isolated

• Channel-to-Logic: Galvanically isolated

• Isolation Voltage: 600 V AC for 1 minute

Environmental Ratings

• Operating Temperature: -40 to +105 °C (-40 to +221 °F)

• Storage Temperature: -40 to +70 °C

• Relative Humidity: 5 to 95%, non-condensing

• Environment Suitability: Class G3 (harsh)

Power Requirements

• Input Voltage: 24 V DC (+5%, -10%)

• Power Consumption: Max. 7 W

• Heat Dissipation: Max. 4 W

Physical

• Dimensions: 11.5 cm × 11 cm × 4.5 cm

• Weight: 0.32 kg