Overview

The FBM218 is a compact, HART® Communication Redundant Output Interface Module that supports field devices with HART versions 5, 6, and 7, providing isolated output channels for effective communication and control.

Features

• Supported HART Instruments: Compliant with HART versions 5, 6, and 7
• Channels: 8 isolated output channels
• Communication Mode: Point-to-point, master/slave, asynchronous, half-duplex at 1200 baud
• Error Checking: Parity on each byte and 32-bit CRC error checking on each message
• Speed: 2 messages per second
• Max Distance: Up to 3030 m (10,000 ft), meeting HART FSK physical layer specification
• Current Output Accuracy: ±0.05% of span (between 4 mA and 20 mA)
• Output Load: 750 Ω maximum
• Maximum Rate of Change: 20 mA in 60 milliseconds
• Resolution: 13 bits

Environmental Specifications

• Operating Temperature:
  • Module: -20 to +60°C (-4 to +140°F)
  • Termination Assembly: -20 to +70°C (-4 to +158°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)
• Storage Temperature: -40 to +85°C (-40 to +185°F)
• Vibration Resistance: 7.5 m/S² (0.75 g) from 5 to 500 Hz
• Contamination: Suitable for Class G3 (Harsh) environments per ISA Standard S71.04

Dimensions

• Module Dimensions:
  • Height: 130 mm (5.12 in)
  • Width: 25 mm (0.98 in)
  • Depth: 150 mm (5.9 in) including connectors, 139 mm (5.46 in) excluding connectors

Termination Cables

• Cable Length: Up to 30 m (98 ft)
• Cable Materials: Polyurethane or Low Smoke Zero Halogen (LSZH)
• Termination Assembly Connections:
  • FBM Baseplate End: 37-pin D-subminiature
  • Termination Assembly End: 25-pin D-subminiature
• Construction: Polyamide (PA) for termination assembly, green for communication
• Output Terminal Blocks: 3 tiers, 8 positions