Allen-Bradley 1746-FIO4V
Allen-Bradley 1746-FIO4V
Allen-Bradley 1746-FIO4V
Allen-Bradley 1746-FIO4V
Allen-Bradley 1746-FIO4V
Allen-Bradley 1746-FIO4V
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  • Lifecycle status

    Lifecycle status: Discontinued

    Rockwell Automation publishes a discontinuation date of December 31, 2014 and identifies engineering replacement review. Confirm the migration design before substitution.

1746-FIO4V

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Allen-Bradley 1746-FIO4V is an SLC 500 fast analog module with two selectable inputs and two independently isolated voltage outputs.
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Technical specifications for 1746-FIO4V

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1746-FIO4V
  • Product Family:
    SLC 500
  • Product Type:
    Fast Analog Combination I/O Module
  • Stock:
    1
  • Input Channels:
    2 differential, current or voltage selectable
  • Output Channels:
    2 voltage outputs, not individually isolated
  • Chassis Slots:
    1
  • Backplane Current at 5V DC:
    55 mA
  • Backplane Current at 24V DC:
    120 mA
  • Calibration Interval:
    Every six months or as required by application accuracy
  • Input Converter Resolution:
    12 bit
  • Input Conversion Time:
    7.5 µs every 512 µs, nominal
  • Module Throughput:
    512 µs typical; 1.10 ms maximum
  • Input Step Response:
    100 µs, 5% to 95%
  • Input Channel Bandwidth:
    7.0 kHz minimum at −3 dB
  • Voltage Input Range:
    0 to 10 V DC
  • Voltage Input Impedance:
    1 MΩ nominal
  • Voltage Input Resolution:
    2.4414 mV per LSB
  • Current Input Range:
    0 to 20 mA nominal; 0 to 30 mA maximum
  • Current Input Impedance:
    250 Ω nominal
  • Current Input Resolution:
    9.7656 µA per bit
  • Field Wiring-to-Backplane Isolation:
    500 V DC
  • Output Converter Resolution:
    14 bit
  • Voltage Output Range:
    −10 to +10 V DC, minus 1 LSB
  • Voltage Output Resolution:
    1.22070 mV per LSB
  • Output Step Response:
    2.5 ms to 95%, nominal
  • Output Load Range:
    1 kΩ to infinity
  • Maximum Output Load Current:
    10 mA
  • Maximum Output Load Reactance:
    1 µF
  • Weight:
    0.2 kg
  • Tariff Code:
    8537101190
  • 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 Specifications Wiring & Scaling Calibration & Diagnostics Application
  • Two differential inputs selectable for current or voltage operation
  • Two independently isolated voltage-output channels
  • Fast analog conversion for compatible SLC 500 control applications

1746-FIO4V combines two configurable analog inputs and two voltage outputs in one SLC 500 chassis slot.

Successful replacement depends on the saved program, channel ranges, scaling, grounding, shields, field sources, output loads, data handling, and calibration history.

Commissioning should verify every loop electrically and functionally, including polarity, zero and span, alarms, interlocks, fault response, and power-cycle recovery.

Availability: Rockwell Automation lists 1746-FIO4V as Discontinued with engineering replacement review; sourcing is confirmed during quotation.

Allen-Bradley 1746-FIO4V 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.

  • Two current-or-voltage selectable differential inputs
  • Two independently isolated voltage outputs
  • Backplane current: 55mA at 5V DC and 120mA at 24V DC
  • Record every channel mode, range and engineering-unit scaling
  • Maintain documented shield, grounding and cable-separation practices
  • Confirm source impedance and connected output-load requirements
  • Perform official calibration with suitable traceable test equipment
  • Compare as-found results with the documented process tolerance
  • Prove analog alarms, interlocks and fault responses before returning to service
  • Fast analog signal acquisition in SLC 500 systems
  • Voltage-reference output for compatible industrial equipment
  • Closed-loop machine and process analog control
Description
1746-FIO4V is an Allen-Bradley SLC 500 fast analog combination I/O module. It provides two input channels selectable for current or voltage operation and two independently isolated voltage-output channels.

The official manual documents a single-slot module with a removable terminal block, 55mA backplane current at 5V DC and 120mA at 24V DC. Correct use depends on input selection, scaling, grounding, shielding, source impedance, output load, and processor programming.

Before replacement, save the SLC program and scaling logic, record every channel mode and range, label field wiring, document calibration history, and prove all analog loops and machine responses under controlled conditions.
Revisions

Revision Part #

Also known as

1746-FIO4V Ser A
1746-FIO4V/A, Series A, Rev A
Alternative Names
1746-FIO4V 1746 FIO4V 1746FIO4V AB 1746-FIO4V Allen-Bradley 1746-FIO4V Rockwell Automation 1746-FIO4V
Technical notes
1746-FIO4V replacement requires saved channel modes, scaling, calibration, shield and grounding details, output loads, terminal mapping, and controlled analog-loop testing.
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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.
Will a replacement 1746-FIO4V automatically use the existing channel settings?
No. The input modes depend on the module’s hardware switches, while scaling and control behavior are defined in the SLC program. Match the replacement module to the original configuration before startup.
Can the existing terminal block be transferred to another 1746-FIO4V?
The terminal block is removable, but inspect it before reuse. Confirm the terminal assignments, labeling, screw condition, shield connections, analog commons, and conductor security.
Why can a replacement 1746-FIO4V produce different process values from the original module?
Common causes include different input-switch positions, incorrect program scaling, reversed polarity, changed grounding, missing transmitter power, wiring errors, or an unsuitable output load.
Can 1746-FIO4V directly replace 1746-FIO4I?
No direct substitution should be assumed. Their input functions are similar, but their output types are different. The connected devices, wiring, program scaling, and control logic must match the replacement module.
Can 1746-FIO4V power connected analog transmitters?
No. The module receives analog signals but does not provide transmitter loop power. Two-wire, three-wire, and four-wire transmitters require an appropriate external power supply and the correct grounding arrangement.
What should be documented before removing an existing 1746-FIO4V?
Save the SLC program and record the slot location, input-switch positions, terminal wiring, scaling logic, signal types, transmitter supplies, shield connections, output loads, alarm limits, and normal process values.
What information should be provided when ordering a replacement 1746-FIO4V?
Provide the complete 1746-FIO4V catalog number, series and revision, clear label photographs, SLC processor and chassis details, terminal-block condition, input switch positions, configured input ranges, output-load requirements, wiring drawings, scaling values and the latest calibration records.