FOXBORO,FBM218
FOXBORO,FBM218
FOXBORO,FBM218
FOXBORO,FBM218
FOXBORO,FBM218
FOXBORO,FBM218
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FBM218

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Foxboro FBM218 is an eight-channel redundant 4-20 mA output module with HART communication for Foxboro DCS field devices.
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Technical specifications for FBM218

  • Manufacturer:
    Invensys
  • Part Number:
    FBM218
  • Product Family:
    Foxboro
  • Product Type:
    HART Communication Redundant Output Module
  • Stock:
    1
  • Output channels:
    8 isolated and independent 4-20 mA/HART channels
  • HART data rate:
    1200 baud; up to 2 messages per second
  • Maximum HART distance:
    3,030 m, subject to loop burden and barriers
  • Output accuracy:
    ±0.05% of span from 4 to 20 mA
  • Output load:
    750 Ω maximum
  • Maximum rate of change:
    20 mA in 60 ms
  • Resolution:
    13 bits
  • Channel isolation test:
    600 VAC for one minute
  • Power consumption:
    7 W maximum
  • Heat dissipation:
    5 W maximum
  • Module Fieldbus:
    Redundant 2 Mbps
  • Input power:
    24 VDC +5%, -10%
  • Operating temperature:
    -20 to +70°C
  • Storage temperature:
    -40 to +70°C
  • Relative humidity:
    5 to 95%, noncondensing
  • Contamination class:
    ISA-S71.04 Class G3
  • Dimensions:
    10.2 × 4.5 × 10.4 cm
  • Weight:
    0.284 kg
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals HART Links Redundancy Loop Design Application
  • Use FBM218 only for the documented FBM218 channel function
  • Confirm the electronic-module order number, termination hardware and cable before replacement
  • Preserve field wiring, channel configuration, diagnostics and redundancy state before removal

FBM218 is a Foxboro hart communication redundant output module designed for Foxboro DCS 200 Series field I/O.

Foxboro FBM218 is an eight-channel redundant 4-20 mA output module with HART communication for Foxboro DCS field devices. FBM218 is the official functional model and RH922VW is its current exact module part number; RH916QD is a separate redundant adapter.

Before installation or replacement, verify the complete nameplate, companion hardware, termination assembly, cable, signal limits, field wiring, saved configuration and supported system environment.

Availability, condition, price, and shipping time for FBM218 are confirmed during quotation.

Foxboro FBM218 HART Communication Redundant Output Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Use HART version 5, 6 or 7 devices in point-to-point service
  • Keep each loop within the documented distance and burden limits
  • Do not enable HART burst mode because FBM218 does not support it
  • Install the master/tracker pair with the RH916QD redundant adapter
  • Preserve adjacent module roles and the common termination identity
  • Verify output continuity and HART communication during approved transfer testing
  • Keep the output burden at or below 750 Ω
  • Account for barriers, cable resistance and field-device voltage drop
  • Check channel isolation, polarity and field wiring before energization
  • Redundant 4-20 mA valve and actuator positioning
  • HART-enabled process field-device output control
  • High-availability analog output service requiring continued operation after a single detected module failure
Description
FBM218 is a Foxboro hart communication redundant output module for the Foxboro DCS 200 Series I/O platform.

Foxboro FBM218 is an eight-channel redundant 4-20 mA output module with HART communication for Foxboro DCS field devices. Its documented channel architecture and electrical limits define the supported field interface.

Before installation or replacement, confirm the complete FBM218 identity, module part number, compatible termination hardware, cable, field power, wiring, saved configuration and control-system requirements.
Alternative Names
FBM218 FBM 218 Foxboro FBM218 Foxboro Evo FBM218 Invensys Foxboro FBM218 I/A Series FBM218 RH922VW FBM218 RH922VW
Technical notes
FBM218 and RH922VW identify the same official electronic module. Use RH916QD only as the separate redundant adapter and verify the installed termination assembly before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
When is FBM218 a suitable choice for a control loop that also needs HART access?
Use FBM218 when the approved Foxboro architecture requires redundant analog output control together with supported digital device communication. Confirm the actuator, termination path and control strategy before selection.
Can existing non-HART analog output loops be migrated to FBM218?
Potentially, but the termination assembly, wiring, loop burden, scaling, fallback behavior and database must be reviewed. HART capability does not remove the need to recommission the analog loop.
Why can several HART devices disappear after an FBM218 partner transfer?
Check partner synchronization, both Module Fieldbus paths, RH916QD connections, termination hardware, the downloaded device database, polling assignments and alarms recorded during the transfer.
Why can FBM218 deliver the correct current while the HART value or status in the DCS remains stale?
Review device polling, tag and revision mapping, channel configuration, barrier and cable effects, grounding, noise, device mode and whether fresh digital variables are reaching the control database.
How should FBM218 fallback behavior be agreed before commissioning?
Define the required output action for communication loss, module transfer, field-device failure and control interlocks in the approved control strategy, then verify alarms and operator response before service.
What records are needed when migrating field instruments to FBM218?
Retain device tags and revisions, channel assignments, scaling, fallback values, adapter and termination identities, barrier and cable details, control logic, alarm settings and baseline diagnostics.
What test sequence validates FBM218 while minimizing process disturbance?
First confirm a healthy synchronized pair, then test selected loops with controlled references, verify HART identity and variables, observe alarms, perform an approved transfer and restore normal control.

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