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FBM242

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Foxboro FBM242 is a sixteen-channel isolated discrete output module that switches externally powered 15 to 60 VDC loads in supported Foxboro DCS systems.
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Technical specifications for FBM242

  • Manufacturer:
    Invensys
  • Part Number:
    FBM242
  • Product Family:
    Foxboro
  • Product Type:
    Sixteen-Channel Isolated Discrete Output Module
  • Stock:
    1
  • Output channels:
    16, individually galvanically isolated
  • Field supply:
    15 to 60 VDC, externally sourced
  • Maximum channel current:
    2.25 A functional limit
  • Channel isolation test:
    600 VAC for 1 minute
  • Module supply:
    24 VDC +5/-10%
  • Maximum module power:
    3 W
  • Mounting:
    DIN rail-mounted FBM on a supported baseplate
  • Dimensions:
    4.5 × 10.2 × 10.4 cm
  • Operating temperature:
    -20 to +70°C
  • Relative humidity:
    5 to 95%, non-condensing
  • On-state voltage drop:
    0.2 V maximum at 2.25 A
  • Off-state leakage current:
    0.1 mA maximum
  • Maximum heat dissipation:
    6.5 W at 24 VDC with all outputs at 1.5 A
  • Storage temperature:
    -40 to +70°C
  • Vibration:
    0.75 g from 5 to 500 Hz
  • 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 Output Circuits Isolation Commissioning Application
  • Switches sixteen externally powered DC field loads
  • Provides galvanic isolation for every output channel
  • Verify inrush, TA wiring and safe state before enabling outputs

Foxboro FBM242 converts controller commands into sixteen individually isolated DC output circuits for solenoids, interposing relays and other field loads.

The electronic module is powered from the baseplate while each output uses the installed external field supply routed through the selected termination assembly.

Its isolated-channel design supports mixed field references, but load current, inrush, suppression, wiring polarity and TA selection must be verified channel by channel.

Availability, condition, price, and shipping time for FBM242 are confirmed during quotation.

Foxboro FBM242 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.

  • Match each field supply and load polarity
  • Calculate steady current and inrush for every channel
  • Use external suppression where required by the load design
  • Keep channel references separated as engineered
  • Match the exact TA and Type 4 cable arrangement
  • Do not assign TA weight or dimensions to the module body
  • Clear forces and maintenance bypasses before testing
  • Command one output at a time under controlled conditions
  • Confirm safe response to loss of field power and communication
  • Solenoid and valve control in process units
  • Isolated interposing-relay outputs for plant equipment
  • Externally powered discrete-output service in critical DCS cabinets
Description
Foxboro FBM242 converts controller commands into sixteen individually isolated DC output circuits for solenoids, interposing relays and other field loads.

The electronic module is powered from the baseplate while each output uses the installed external field supply routed through the selected termination assembly.

Its isolated-channel design supports mixed field references, but load current, inrush, suppression, wiring polarity and TA selection must be verified channel by channel.
Alternative Names
FBM 242 Foxboro FBM242 Invensys FBM242 Invensys Foxboro FBM242 I/A Series FBM242 FBM242 Foxboro FBM 242 Foxboro I/A Series FBM242 Invensys Foxboro FBM242 RH916TA Foxboro FBM242 RH916TA
Technical notes
FBM242 channel ratings do not remove the need to calculate load inrush, duty cycle, wiring protection and external suppression. Termination hardware is a separate selection.
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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.
Which field loads are suitable for Foxboro FBM242?
Use DC loads whose steady current, inrush, supply voltage, switching duty and inductive energy stay within the documented channel and installation limits.
Does Foxboro FBM242 supply power to its output loads?
No. The field circuits require the documented external 15 to 60 VDC supply; baseplate power only operates the module electronics.
Can different commons be used on separate Foxboro FBM242 channels?
The outputs are individually isolated, but every channel still needs a verified supply reference, polarity, protection and approved TA terminal map.
Why can Foxboro FBM242 indicate an output command while the load remains off?
Check external field power, terminal assignment, load continuity, polarity, overcurrent condition, suppression components and project output mapping.
Can Foxboro FBM242 switch a high-inrush solenoid at the steady-current rating?
Not by steady current alone. Compare the solenoid's cold-coil inrush duration with the documented FBM242 pulse and ambient limits.
What must be recorded before replacing Foxboro FBM242?
Record module path, A/B Fieldbus status, TA and cable numbers, every output terminal, field supply, load type, safe state, forcing status and active diagnostics.
How should Foxboro FBM242 be recommissioned?
Test channels individually with controlled loads, verify voltage and current under load, prove de-energized safe states, then verify communication over both Module Fieldbus paths and the intended machine sequence.

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