AB 1771-NIS-C
AB 1771-NIS-C
AB 1771-NIS-C
AB 1771-NIS-C
AB 1771-NIS-C
AB 1771-NIS-C
Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail info@apterpower.com
  • Lifecycle status

    Discontinued
    Discontinued date: 2017-05-31
    Replacement category: Engineering Replacement

1771-NIS/C

/ 4.9
1001 reviews | Need a Specific Revision?
Allen-Bradley 1771-NIS/C is the Series C revision of the 1771-NIS high-resolution isolated analog input module with eight 4-20 mA channels for PLC-5 systems.
In Stock
Ships by Tuesday, September 29
Fast Shipping Available
Get a quick price for 1771-NIS/C
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for 1771-NIS/C

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1771-NIS/C
  • Product Family:
    PLC-5
  • Product Type:
    High-Resolution Isolated Analog Input Module
  • Stock:
    1
  • Input channels:
    8
  • Documented process signal:
    4-20 mA
  • Input arrangement:
    Sourcing or sinking
  • Loop power:
    Module-supplied or externally supplied
  • External-loop resolution:
    16-bit; 65,535 counts over 0-20 mA
  • Remote termination:
    1771-RTP4 for non-thermocouple applications
  • Standard cables:
    1771-NC6 or 1771-NC15, as applicable
  • 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 Wiring Processing Diagnostics Application
  • Acquires eight isolated 4-20 mA process-current channels
  • Supports module-supplied or external loop power for sourcing or sinking arrangements
  • Provides high-resolution measurement with configurable scaling, alarms, filtering, and diagnostics

1771-NIS/C is the Series C revision of the Allen-Bradley 1771-NIS high-resolution isolated analog input module used in PLC-5 control systems.

It connects eight isolated process-current loops to a 1771 I/O chassis and supplies controller data for measurement, alarming, filtering, and process supervision.

Before installation or replacement, verify the chassis and processor, Series C nameplate, current-loop polarity, sourcing or sinking arrangement, loop-power method, remote termination panel, cable, scaling, alarms, filters, and saved block-transfer configuration.

Availability, condition, price, and shipping time for 1771-NIS/C are confirmed during quotation.

Allen-Bradley 1771-NIS/C High-Resolution Isolated Analog Input 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.

  • Current loops can be arranged for sourcing or sinking operation
  • The module can supply loop power for compatible two-wire transmitters
  • External loop power can be used when required by the field design
  • External-loop operation provides 16-bit resolution across the 0-20 mA range
  • User scaling and real-time sampling are configured through the module data blocks
  • Filtering and rate-of-change settings should match process response requirements
  • High and low alarms can be configured with deadband
  • Open-circuit and range conditions must be handled in controller logic
  • Channel wiring, loop power, and block-transfer status should be checked during troubleshooting
  • Eight-channel 4-20 mA process-transmitter acquisition in PLC-5 systems
  • Legacy machine and process-control measurement requiring isolated current inputs
  • Like-for-like maintenance of installed 1771-NIS analog input stations
Description
Allen-Bradley 1771-NIS/C is the Series C revision of the 1771-NIS high-resolution isolated analog input module for the PLC-5 platform.

The module accepts eight 4-20 mA current-input channels, supports module-supplied or external loop power, and provides high-resolution conversion with configurable scaling, alarming, filtering, real-time sampling, and rate-of-change monitoring.

Before installation or replacement, confirm the Series C nameplate, compatible 1771 chassis and processor, loop polarity, sourcing or sinking arrangement, loop-power method, remote termination panel, cable, scaling, alarm limits, filters, and saved block-transfer configuration.
Revisions

Revision Part #

Also known as

1771-NIS Ser C
1771-NIS/C, Series C, Rev C
Alternative Names
1771-NIS/C 1771-NIS Allen-Bradley 1771-NIS/C Rockwell Automation 1771-NIS/C PLC-5 1771-NIS/C
Technical notes
The official catalog number is 1771-NIS; 1771-NIS/C identifies the Series C hardware revision. Verify the nameplate, remote termination panel, cable, loop-power arrangement, scaling, alarms, filters, and block-transfer configuration before replacement.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

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 is Allen-Bradley 1771-NIS/C related to the official 1771-NIS catalog number?
Rockwell Automation lists 1771-NIS as the official catalog number. The /C suffix identifies the Series C hardware revision, so the complete nameplate catalog number and Series should be confirmed before purchase.
Can Allen-Bradley 1771-NIS/C power two-wire transmitters?
The 1771-NIS design can provide loop power for compatible two-wire transmitters; verify loop polarity, current demand, terminal arrangement, and the complete field circuit.
Is the 1771-RTP4 panel included with Allen-Bradley 1771-NIS/C?
Do not assume it is included. The remote termination panel, cable, connectors, and other accessories must be confirmed separately in the quoted stock description.
What should be checked if Allen-Bradley 1771-NIS/C reports an open or out-of-range loop?
Check transmitter power, loop continuity, polarity, termination, cable, shield grounding, channel configuration, scaling, and the controller status words before replacing hardware.
Can Allen-Bradley 1771-NIS/C be replaced without changing the PLC program?
A like-for-like replacement still requires verification of Series, block-transfer configuration, scaling, alarm limits, filters, and saved calibration-related settings.
Does Rockwell Automation name a direct replacement for Allen-Bradley 1771-NIS/C?
The official 1771-NIS page shows an Engineering Replacement category but does not publish a replacement catalog number, so migration requires application engineering.
What records should be saved before replacing Allen-Bradley 1771-NIS/C?
Record the nameplate catalog and Series, chassis slot, RTP and cable, loop-power arrangement, channel wiring, scaling, alarm and filter values, status handling, and PLC block-transfer logic.

Product Browsing History