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Allen-Bradley 1746-NIO4I Analog I/O Module for SLC 500 Systems

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Allen-Bradley 1746-NIO4I

by Allen-Bradley

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OverviewThe Allen-Bradley 1746-NIO4I is a high-performance, integrated analog input/output module designed for seamless integration with the Allen-Bradley SLC 500 programmable logic controller (PLC) family. This adaptable module offers a robust solution for industrial automation applications that require precise and efficient analog signal processing. By incorporating two analog current inputs and two analog current outputs into a single unit, the 1746-NIO4I significantly optimizes rack space within your PLC enclosure, reducing the need for multiple individual modules. It is an excellent selection for a wide range of process control scenarios where both analog input for monitoring and analog output for actuation are essential, providing superior control and operational efficiency. Moreover, its impressive 16-bit resolution guarantees highly accurate signal conversion, leading to precise command over your industrial processes. Palm Parts Solution proudly offers this crucial component in stock and ready to ship today, minimizing your downtime and accelerating project timelines.Key Features Integrated Analog I/O: Combines two analog current inputs and two analog current outputs within one module, conserving valuable rack space and simplifying wiring. High-Resolution Performance: Delivers 16-bit resolution for both input and output signals, ensuring exceptional accuracy and precision in analog data conversion. SLC 500 System Compatibility: Engineered for easy integration and optimal operation within existing or new Allen-Bradley SLC 500 series control systems. Current-Based Signals: Supports standard analog current signals (-20 to +20 mA for input, 0-20 mA for output) for dependable communication with a broad spectrum of industrial sensors and actuators. Robust Noise Rejection: Features impressive Common Mode Rejection (105 dB at 60Hz) and Normal Mode Rejection (55 dB at 60Hz) to uphold signal integrity in noisy electrical environments. Wide Operating Temperature: Functions reliably across a temperature range of 0-60 degrees Celsius, making it suitable for various industrial settings. Cost-Effective Solution: Provides a highly efficient and economical option for applications requiring limited analog input and output capabilities. Technical Specifications Catalog Number: 1746-NIO4I Number of Inputs: 2 Input Type: Analog Current (-20 to +20 mA) Input Impedance: 250 Ohms Number of Outputs: 2 Output Type: Analog Current (0-20 mA) Resolution: 16 bits Accuracy: Refer to the official Allen-Bradley datasheet for specific accuracy ratings. Common Mode Voltage: -20 to +20V Common Mode Rejection: 105 dB at 60Hz Normal Mode Rejection: 55 dB at 60 Hz Backplane Current Consumption: 55 mA @ 5V DC / 90 mA @ 24V DC Operating Temperature: 0-60 degrees Celsius Applications Advanced Process Control: Ideal for intricate process control systems requiring both precise analog input monitoring and accurate analog output actuation. Valve and Actuator Management: Reliably controls and monitors the position and function of numerous analog devices such as control valves, hydraulic actuators, and pneumatic systems. Environmental Monitoring: Perfect for tracking critical process parameters like pressure, temperature, flow rates, and levels in manufacturing, water treatment, and energy sectors. Industrial Automation Projects: A valuable component in a wide array of industrial automation projects where dependable and efficient analog I/O is crucial for operational success. HVAC and Building Management: Can be deployed in sophisticated HVAC systems for precise climate regulation and in building management systems for environmental oversight. Why ChooseThis module offers an intelligent choice for industrial applications due to its space-saving design and enhanced precision. Its integrated input/output functionality minimizes the footprint in your control cabinet, leading to more compact and efficient system layouts. The 16-bit resolution ensures highly accurate data acquisition and control, which is vital for critical operations.Order NowExperience the efficiency and precision of the Allen-Bradley 1746-NIO4I. This module is in stock and ready to ship, ensuring rapid deployment for your critical industrial projects. Contact Palm Parts Solution today to place your order and enhance your control systems.FAQWhat type of signals does the 1746-NIO4I support?The 1746-NIO4I supports standard analog current signals, specifically -20 to +20 mA for input and 0-20 mA for output.What is the resolution of this module?The module features a high-resolution performance of 16 bits for both input and output signals.Is this module compatible with other PLC families?The 1746-NIO4I is specifically engineered for seamless compatibility and optimal performance within the Allen-Bradley SLC 500 family of programmable logic controllers.What are the operating temperature limits for the 1746-NIO4I?The module operates reliably within a temperature range of 0 to 60 degrees Celsius.What are the primary benefits of using an integrated analog I/O module?Using an integrated analog I/O module like the 1746-NIO4I saves valuable rack space, simplifies wiring, and contributes to more compact and efficient system designs.

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PRODUCT DETAILS

Allen-Bradley 1746-NIO4I

Overview

This is a genuine Allen-Bradley component from the SLC 500 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 SLC 500 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 SLC 500 Platform (Legacy) family

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

Technical Specifications

  • Catalog Number: 1746-NIO4I
  • Number of Inputs: 2
  • Input Type: Analog Current (-20 to +20 mA)
  • Input Impedance: 250 Ohms
  • Number of Outputs: 2
  • Output Type: Analog Current (0-20 mA)
  • Resolution: 16 bits
  • Accuracy: Refer to the official Allen-Bradley datasheet for specific accuracy ratings.
  • Common Mode Voltage: -20 to +20V
  • Common Mode Rejection: 105 dB at 60Hz
  • Normal Mode Rejection: 55 dB at 60 Hz
  • Backplane Current Consumption: 55 mA @ 5V DC / 90 mA @ 24V DC
  • Operating Temperature: 0-60 degrees Celsius

Applications

  • Advanced Process Control: Ideal for intricate process control systems requiring both precise analog input monitoring and accurate analog output actuation.
  • Valve and Actuator Management: Reliably controls and monitors the position and function of numerous analog devices such as control valves, hydraulic actuators, and pneumatic systems.
  • Environmental Monitoring: Perfect for tracking critical process parameters like pressure, temperature, flow rates, and levels in manufacturing, water treatment, and energy sectors.
  • Industrial Automation Projects: A valuable component in a wide array of industrial automation projects where dependable and efficient analog I/O is crucial for operational success.
  • HVAC and Building Management: Can be deployed in sophisticated HVAC systems for precise climate regulation and in building management systems for environmental oversight.

Why Choose the 1746-NIO4I?

This module offers an intelligent choice for industrial applications due to its space-saving design and enhanced precision. Its integrated input/output functionality minimizes the footprint in your control cabinet, leading to more compact and efficient system layouts. The 16-bit resolution ensures highly accurate data acquisition and control, which is vital for critical operations.

Availability & Shipping

  • In stock: 1746-NIO4I 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 1746-NIO4I ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1746-NIO4I supports standard analog current signals, specifically -20 to +20 mA for input and 0-20 mA for output.

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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