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Allen-Bradley 1771-NIS/C Analog Input Module for PLC-5 systems

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Allen-Bradley 1771-NIS/C

by Allen-Bradley

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OverviewUpgrade your industrial control systems with the Allen-Bradley 1771-NIS/C analog input module. This Series C module features 8 independently isolated 4-20mA current inputs, delivering exceptional precision and dependability for demanding applications. Its integrated loop power supply streamlines wiring, reducing the need for external components and simplifying both installation and upkeep. Designed to prevent signal interference and ground loops, the 1771-NIS/C ensures precise and consistent data acquisition, safeguarding the integrity of your essential automation processes. Its robust construction and advanced capabilities make it an indispensable asset in environments where measurement accuracy and continuous operation are critical.Key Features 8 Individual Analog Inputs: Offers superior signal integrity, effectively preventing crosstalk and minimizing noise for highly accurate readings in complex industrial settings. 4-20mA Current Signal Compatibility: Works seamlessly with a broad range of industrial sensors and transmitters, ensuring flexible use across various control systems. Integrated Loop Power Supply: Eliminates the need for external power sources for loop-powered devices, significantly simplifying wiring, reducing system complexity, and lowering setup expenses. High-Resolution Data Acquisition: Provides exceptionally precise and stable input measurements, vital for fine-tuned process control and accurate monitoring of key parameters. Optimized for Allen-Bradley PLC-5 Systems: Guarantees perfect compatibility and effortless integration within existing Allen-Bradley automation frameworks, enhancing overall system performance and reliability. Advanced Series C Design: Incorporates improved functionality, enhanced performance characteristics, and increased reliability compared to earlier versions, providing a future-proof solution. Robust Noise Reduction: Built-in features and isolation techniques actively combat electrical interference, ensuring clean and dependable data even in electrically challenging industrial environments. Technical SpecificationsModel: 1771-NISSeries: CNumber of Inputs: 8Input Type: 4-20mA Current SignalsIsolation: Individually Isolated InputsLoop Power Supply: Yes, IntegratedMounting: PLC-5 Chassis-BasedCertifications: UL Listed, CE Compliant, RoHS CompliantCompatibility: Allen-Bradley PLC-5 Programmable Logic ControllersApplicationsPrecision Industrial Process Control: Essential for accurate 4-20mA current measurement in critical automation systems, including chemical processing, food and beverage, and water treatment.Manufacturing and Production Line Automation: Facilitates real-time, high-accuracy monitoring of process variables such as flow, pressure, and temperature for optimized production efficiency.SCADA and Remote Monitoring Systems: Enables stable and reliable data acquisition for supervisory control and data acquisition networks, ensuring robust communication with field devices.Energy and Utility Management: Provides reliable signal acquisition for power generation, distribution, and substations, supporting efficient utility operations and energy management.Pharmaceutical and Biotechnological Industries: Enhances automation precision in highly regulated environments where stringent control and data accuracy are paramount for quality and compliance.Oil & Gas Exploration and Processing: Offers reliable measurement in harsh environments for critical operational parameters, ensuring safety and efficiency in extraction and refining processes.Why ChooseThe 1771-NIS/C stands out for its high-resolution input and individual isolation, guaranteeing data integrity and operational reliability in the most demanding industrial settings.Order NowContact us to place your order or request a quote for the Allen-Bradley 1771-NIS/C analog input module. Our team is ready to assist you with your industrial automation needs.FAQWhat systems is the 1771-NIS/C compatible with?The 1771-NIS/C is specifically designed for seamless integration with Allen-Bradley PLC-5 Programmable Logic Controllers.What type of inputs does this module support?This module supports 8 individually isolated 4-20mA current signals.Does the 1771-NIS/C require an external power supply for loop-powered devices?No, it features an integrated loop power supply, eliminating the need for external power sources and simplifying wiring.What are the primary benefits of individual isolation?Individual isolation ensures superior signal integrity by preventing crosstalk and minimizing noise, leading to exceptionally accurate readings in complex industrial environments.Can this module be used in harsh industrial settings?Yes, its robust construction and advanced noise reduction features make it suitable for challenging industrial environments where precise measurement and operational uptime are critical.

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PRODUCT DETAILS

Allen-Bradley 1771-NIS/C

Overview

This is a genuine Allen-Bradley component from the PLC-5 Platform (Legacy) family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem
  • Engineered to integrate inside PLC-5 Platform (Legacy) installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the PLC-5 Platform (Legacy) family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

Model: 1771-NIS

Series: C

Number of Inputs: 8

Input Type: 4-20mA Current Signals

Isolation: Individually Isolated Inputs

Loop Power Supply: Yes, Integrated

Mounting: PLC-5 Chassis-Based

Certifications: UL Listed, CE Compliant, RoHS Compliant

Compatibility: Allen-Bradley PLC-5 Programmable Logic Controllers

Applications

Precision Industrial Process Control: Essential for accurate 4-20mA current measurement in critical automation systems, including chemical processing, food and beverage, and water treatment.

Manufacturing and Production Line Automation: Facilitates real-time, high-accuracy monitoring of process variables such as flow, pressure, and temperature for optimized production efficiency.

SCADA and Remote Monitoring Systems: Enables stable and reliable data acquisition for supervisory control and data acquisition networks, ensuring robust communication with field devices.

Energy and Utility Management: Provides reliable signal acquisition for power generation, distribution, and substations, supporting efficient utility operations and energy management.

Pharmaceutical and Biotechnological Industries: Enhances automation precision in highly regulated environments where stringent control and data accuracy are paramount for quality and compliance.

Oil & Gas Exploration and Processing: Offers reliable measurement in harsh environments for critical operational parameters, ensuring safety and efficiency in extraction and refining processes.

Why Choose the 1771-NIS/C?

The 1771-NIS/C stands out for its high-resolution input and individual isolation, guaranteeing data integrity and operational reliability in the most demanding industrial settings.

Availability & Shipping

  • In stock: 1771-NIS/C ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1771-NIS/C ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1771-NIS/C is specifically designed for seamless integration with Allen-Bradley PLC-5 Programmable Logic Controllers.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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