AB 1746-NIO4V
AB 1746-NIO4V
AB 1746-NIO4V
AB 1746-NIO4V
AB 1746-NIO4V
AB 1746-NIO4V
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  • Lifecycle status

    Discontinued
    Discontinued date: 2021-04-29

1746-NIO4V

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Allen-Bradley 1746-NIO4V combines two selectable analog inputs and two ±10 V outputs in one SLC 500 slot for mixed analog control.
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Technical specifications for 1746-NIO4V

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1746-NIO4V
  • Product Family:
    SLC 500
  • Product Type:
    2-Input 2-Voltage Output Analog Module
  • Stock:
    1
  • Module Type:
    Combination analog input and voltage output module
  • Analog Inputs:
    2 differential; independently selectable for current or voltage
  • Input Ranges:
    ±20 mA or ±10 V
  • Analog Outputs:
    2 voltage outputs
  • Output Range:
    ±10 V
  • Backplane Current:
    55 mA at 5 V DC; 115 mA at 24 V DC
  • Update Time:
    512 µs for all channels in parallel
  • Voltage Output Load:
    1 kΩ minimum; 10 mA maximum
  • Terminal Block:
    Removable; factory calibrated
  • 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 Analog Channels Signal Wiring Unused & Loads Application
  • Two current-or-voltage selectable differential inputs
  • Two ±10 V analog outputs
  • All four channels update in parallel within 512 µs

1746-NIO4V combines two differential analog inputs and two voltage outputs in one SLC 500 slot. Each input is independently selected for current or voltage using onboard switches.

The input ranges are ±20 mA or ±10 V, while both outputs are voltage-only at ±10 V. The module is not isolated channel-to-channel and does not provide field loop power.

Correct installation requires single-end shield grounding, suitable output loading, and proper treatment of unused channels. Record switch positions and signal scaling before replacing or recommissioning the module.

Availability, condition, price, and shipping time for 1746-NIO4V are confirmed during quotation.

Allen-Bradley 1746-NIO4V Analog Combination Module Manuals, 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 differential inputs select current or voltage independently
  • Two voltage outputs provide a ±10 V range
  • All channels update in parallel within 512 µs
  • Ground each cable shield at one end only
  • Analog commons are internally connected
  • The module does not supply transmitter loop power
  • Individually jumper unused inputs as officially instructed
  • Leave unused outputs open
  • Maintain at least 1 kΩ voltage-output load resistance
  • Mixed analog measurement and voltage command
  • Legacy SLC 500 process control
  • Replacement of a verified 1746-NIO4V installation
Description
Allen-Bradley 1746-NIO4V is a combination analog input and voltage output module for SLC 500 control systems.

The module provides two differential analog inputs that can be independently configured for ±20 mA or ±10 V, together with two ±10 V analog voltage outputs.

Before installation or replacement, confirm that channels are not isolated from one another, verify the voltage-output load, backplane supply demand, signal wiring, and the factory-calibrated removable terminal block.
Revisions

Revision Part #

Also known as

1746-NIO4V Ser A
1746-NIO4V/A, Series A, Rev A
Alternative Names
1746-NIO4V 1746NIO4V 1746 NIO4V Allen-Bradley 1746-NIO4V Allen Bradley 1746-NIO4V Rockwell Automation 1746-NIO4V SLC 500 1746-NIO4V
Technical notes
Allen-Bradley 1746-NIO4V combines selectable analog inputs with voltage outputs. Confirm switch positions, shield grounding, loop power, and output load 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.
How are Allen-Bradley 1746-NIO4V input ranges selected?
Each input channel uses an onboard switch to select current or voltage operation. Record both switch positions and software scaling before removing the installed module.
Can Allen-Bradley 1746-NIO4V drive a 4–20 mA actuator without an external device?
No. Its analog outputs are voltage outputs. A current-controlled actuator requires a compatible signal converter or a different SLC 500 analog-output module.
Does Allen-Bradley 1746-NIO4V power a two-wire transmitter?
No. The module does not supply loop power. Provide a suitable external loop supply and verify polarity, grounding, and current-input switch selection.
Are Allen-Bradley 1746-NIO4V channels isolated from one another?
No. Official data identifies no channel-to-channel isolation, and the analog commons are internally connected. Review ground potential and loop interactions before wiring.
What should be done with unused Allen-Bradley 1746-NIO4V channels?
Follow the official instructions: individually jumper unused inputs as specified and leave unused outputs open. Do not short output terminals to analog common.
How should cable shields be grounded for Allen-Bradley 1746-NIO4V?
Use shielded twisted-pair cable and ground each shield at one end only, following the installation drawing, to reduce noise without creating a ground loop.
What should be verified before connecting a controller to Allen-Bradley 1746-NIO4V voltage outputs?
Check the receiving device’s input impedance, signal scaling, common reference, grounding, cable resistance, and acceptable voltage range before enabling the output.

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