Easy To Use Fbm214 | Foxboro | Hart Communication Input Interface Module Best Choice [nw8MXht5]

Overview

The FBM214 HART Communication Input Interface Module is designed to provide eight isolated analog input channels, accepting both standard 4 to 20 mA analog signals and HART devices. It supports bi-directional digital communication with HART field devices, making it ideal for industrial control systems.

Features

• Eight Analog Input Channels: Each channel accepts either 4 to 20 mA analog signals or HART Frequency Shift Keying (FSK) signals.
• Dedicated FSK Modem: Provides bi-directional digital communication with HART field devices.
• Analog to Digital Conversion: Converts each 4 to 20 mA input signal from HART devices.
• HART Protocol Support: Supports HART universal commands for seamless field device integration.
• Galvanic Isolation: Each group of 8 channels is isolated from ground and module logic.
• Rugged Design: Compact and suitable for installation in harsh Class G3 environments.
• High Accuracy: Achieved through sigma-delta data conversions.
• Termination Assemblies (TAs): Supports both local and remote connections for field wiring.

Functional Specifications

• Version Supported: HART Protocol v6.
• Interface: 8 isolated input channels.
• Communication to Field Devices: Asynchronous, half-duplex, point-to-point communication at 1200 baud.
• Error Checking: Parity on each byte and one CRC check byte.
• Communication Speed: 2 messages per second.
• Maximum Distance: Up to 3030 m (10,000 ft) between FBM214 and field devices.
• Compliance Voltage: 18 V dc minimum at 20.5 mA.
• Current Input:
  • Sense Resistor: 61.9 Ω nominal.
  • Total Input Resistance: 280 Ω minimum.
  • Accuracy: ±0.03% of full scale.
  • Resolution: 15 bits.
  • Update Rate: 100 ms.
  • Integration Time: 500 ms.
  • Common Mode Rejection: >100 dB at 50 or 60 Hz.
  • Normal Mode Rejection: >35 dB at 50 or 60 Hz.
• Loop Power Supply Protection: Galvanically isolated and limited to 30 mA; current limited to 85 mA if shorted.
• Isolation: Optical and transformer isolation from ground and module logic.

Power Requirements

• Input Voltage Range (Redundant): 24 V dc ±5%.
• Maximum Power Consumption: 7 W.

Environmental Specifications

• Operating Temperature:
  • Module: -20°C to +70°C (-4°F to +158°F).
  • Termination Assembly (PVC): -20°C to +50°C (-4°F to +122°F); PA: -20°C to +70°C (-4°F to +158°F).
• Relative Humidity: 5 to 95% (non-condensing).
• Altitude: -300 to +3,000 m (-1,000 to +10,000 ft).
• Storage Temperature: -40°C to +70°C (-40°F to +158°F).
• Vibration: 7.5 m/s² (0.75 g) from 5 to 500 Hz.
• Contamination: Suitable for use in Class G3 (Harsh) environments (ISA Standard S71.04).

Physical Specifications

• Mounting:
  • Module: Mounts on modular baseplate; DIN rail or 19-inch rack installation.
  • Termination Assembly: Mounts on DIN rail, compatible with 32 mm (1.26 in) or 35 mm (1.38 in) rail styles.
• Mass:
  • Module: 284 g (10 oz).
  • Termination Assembly (Compression): 181 g (0.40 lb); Ring Lug: 249 g (0.55 lb).
• Dimensions:
  • Module: 102 mm (4 in) height, 114 mm (4.5 in) including mounting lugs, 45 mm (1.75 in) width, 104 mm (4.11 in) depth.

Part Numbers

• FBM214 Module: P0922VT
• Termination Cables:
  • Cable Length: Up to 30 m (98 ft).
  • Cable Materials: Polyurethane or Hypalon®/XLP.
  • Cable Connection: 25-pin male D-subminiature.

Cable Specifications

• Field Termination Connections:
  • Compression-type Wiring: 0.2 to 4 mm²/0.2 to 2.5 mm²/24 to 12 AWG.
  • Ring-Lug Wiring: #6 size connectors, 0.5 to 4 mm²/22 AWG to 12 AWG.