Overview

The FBM201 Analog Input Interface Module is designed for use in the Compact 200 Series I/O subsystem. It provides eight channels for receiving 0 to 20 mA dc signals from analog sensors, offering galvanic isolation between each input and the ground. This module is ideal for integrating analog sensor data with the FCP or ZCP systems.

Features

• Input Channels
  • 8 channels for 0 to 20 mA dc sensor signals
• Isolation
  • Each input channel is galvanically isolated from other channels and ground
• Design
  • Compact, rugged design suitable for harsh environments (Class G3)
• Signal Conversion
  • Executes analog input programs with configurable integration time and Rate of Change limits

Functional Specifications

• Communications
  • Redundant 2 Mbps Fieldbus communication with FCM or FCP
• Input Range
  • 0 to 20 mA dc per channel
• Accuracy
  • ±0.03% of span, with a temperature coefficient of ±50 ppm/ºC
• Input Channel Impedance
  • 61.5 Ω nominal
• A/D Conversion
  • Each channel uses an independent Sigma-Delta converter
• Integration Period
  • Software configurable
• Common Mode Rejection

  • 100 dB at 50 or 60 Hz

• Normal Mode Rejection

  • 95 dB at 50 or 60 Hz

• Protection
  • Each channel is current limited, voltage regulated, and isolated
  • Designed to withstand 600 V ac applied for one minute between channels and ground

Power Requirements

• Input Voltage Range (Redundant)
  • 24 V dc ±5%, -10%
• Consumption
  • 7 W
• Heat Dissipation
  • 4 W
• Calibration
  • No calibration required for module or termination assembly

Environmental Specifications

• Operating Temperature
  • FBM201: -20 to +60°C (-4 to +140°F)
  • Termination Assembly: -20 to +70°C (-4 to +158°F)
• Storage Temperature
  • -40 to +85°C (-40 to +185°F)
• Relative Humidity
  • 5 to 95% (non-condensing)
• Altitude
  • Operating: -300 to +3,000 m (-1,000 to +10,000 ft)
  • Storage: -300 to +12,000 m (-1,000 to +40,000 ft)
• Vibration Resistance
  • 7.5 m/s² (0.75 g) from 5 to 500 Hz
• Contamination
  • Suitable for Class G3 environments as per ISA Standard S71.04

Physical Specifications

• Module Dimensions
  • Height: 130 mm (5.12 in)
  • Width: 25 mm (0.98 in)
  • Depth: 150 mm (5.9 in) including baseplate connectors
• Termination Assembly
  • Weight (Compression Type): 181 g (0.40 lb)
  • Weight (Ring Lug Type): 249 g (0.55 lb)
• Mounting
  • FBM201 mounts on a 16-slot horizontal baseplate, which can be mounted on a horizontal DIN rail or a 19-inch rack
• Cable Length
  • Up to 30 m (98 ft)

Cable and Termination Details

• Cable Materials
  • Polyurethane or Low Smoke Zero Halogen (LSZH)
• Cable Connection
  • Baseplate End: 37-pin D-subminiature
  • Termination Assembly End: 25-pin D-subminiature
• Termination Assembly Construction
  • Polyamide (PA), compression or ring lug type
• Field Termination Connections
  • Compression-type Wiring Sizes:
    • Solid/Stranded/AWG: 0.2 to 4 mm² (24 to 12 AWG)
    • Stranded with Ferrules: 0.2 to 2.5 mm²
  • Ring-lug Wiring Sizes:
    • #6 connectors (0.375 in/9.5 mm)
    • 0.5 to 4 mm² (22 AWG to 12 AWG)