FBM214b | P0927AH FOXBORO HART Communication Input Interface Module

The FBM214b is a HART Communication Input Interface Module from Schneider Electric. It is part of the Compact 200 Series I/O subsystem and provides eight individually isolated 4-20 mA analog input channels. These channels can accept either standard 4-20 mA signals or HART signals, which are digitally encoded signals superimposed on the 4-20 mA analog signal.

The FBM214b is a rugged module designed for use in harsh industrial environments. It has a rugged extruded aluminum exterior and is available in enclosures with various levels of environmental protection, up to ISA Standard S71.04.

Key Features and Specifications

• Input Channels:
  Eight individually isolated 4-20 mA analog input channels.
• Signal Compatibility:
  Supports any mix of standard 4-20 mA devices and HART devices (digitally encoded signals superimposed on the 4-20 mA analog signal).
• Loop Supply:
  Provides an individually isolated current-limited loop supply for each channel.
• Input Resistance:
  • Externally powered: 282 Ω
  • Internally powered: 302 Ω
• Loop Power Supply Protection:
  All input loop supplies are limited to less than 37 mA by design.
• Construction:
  Rugged extruded aluminum exterior.
• Environmental Protection:
  Available in enclosures with various levels of environmental protection, up to ISA Standard S71.04.

Physical Specifications

Mounting

• Module:
  • Mounts on a modular baseplate.
  • Can be mounted on a DIN rail (both horizontally or vertically).
  • Can be mounted horizontally on a 19-inch rack using a mounting kit.
  • Alternatively, mounts on a 100 Series conversion mounting structure.
  • Reference Documents:
    • Standard 200 Series Baseplates (PSS 31H-2SBASPLT)
    • 100 Series Conversion Mounting Structures (PSS 31H-2W8)
• Termination Assembly:
  • Mounts on a DIN rail.
  • Accommodates multiple DIN rail styles, including:
    • 32 mm (1.26 in)
    • 35 mm (1.38 in)

Weight

• Module:
  284 g (10 oz) approximate.
• Termination Assembly:
  181 g (0.40 lb) approximate.

Dimensions

• Module:
  • Height: 102 mm (4 in)
  • Height (with mounting lugs): 114 mm (4.5 in)
  • Width: 45 mm (1.75 in)
  • Depth: 104 mm (4.11 in)

Part Numbers

• FBM214b Module:
  RH927AH (supersedes P0927AH)
• Termination Assemblies:
  Refer to “Functional Specifications – Termination Assemblies” on page 9 for details.

Termination Cables

• Cable Lengths:
  Up to 30 m (98 ft)
• Cable Materials:
  • Polyurethane
  • Low Smoke Zero Halogen (LSZH)
  • Cable Connection:
    • FBM Baseplate End: 37-pin D-subminiature
    • Termination Assembly End: 25-pin D-subminiature

Field Termination Connections

• Compression-Type Accepted Wiring Sizes:
  • Solid/Stranded/AWG: 0.2 to 4 mm² / 0.2 to 2.5 mm² / 24 to 12 AWG
  • Stranded with Ferrules: 0.2 to 2.5 mm² (with or without plastic collar)

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