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Allen-Bradley 1746-IB32 SLC 500 32-Channel DC Digital Input Module

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Allen-Bradley 1746-IB32

by Allen-Bradley

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OverviewUpgrade your industrial automation with the Allen-Bradley 1746-IB32 SLC 500 32-Channel DC Digital Input Module. This module is engineered for superior dependability and accuracy, integrating smoothly with SLC 500 programmable logic controllers (PLCs). It delivers robust digital input solutions for a broad spectrum of industrial applications. Designed to accommodate 15-30V DC sinking inputs, the 1746-IB32 ensures precise signal detection and processing, which is vital for modern manufacturing and process control environments.The 1746-IB32 is meticulously crafted for efficiency, featuring eight input points per common. This configuration simplifies wiring, installation, and upkeep, significantly streamlining operations. With a maximum signal ON and OFF delay of only 3ms, this module guarantees rapid response times, ensuring real-time control systems operate with exceptional speed and accuracy. This results in improved system stability, increased production output, and enhanced operational safety.Key Features 32 Digital Inputs: Supports adaptable sinking (negative logic) arrangements for various industrial sensors and devices. Broad Operating Voltage: Functions effectively within 15-30V DC (at 50°C) and 15-26.4V DC (at 60°C) for diverse power compatibility. Optimized Input Grouping: Features 8 points per common, significantly decreasing wiring complexity and installation duration. Minimal Backplane Current Use: Consumes only 50mA at 5V DC, contributing to energy efficiency within your PLC rack. Quick Signal Response: Provides a maximum signal ON/OFF delay of just 3ms, ensuring real-time data acquisition and system responsiveness. Enhanced Noise Immunity: Designed for resilient performance in industrial settings, reducing signal interference. Seamless SLC 500 Integration: Guarantees perfect compatibility and simple setup with all SLC 500 series programmable logic controllers. Technical Specifications Model: 1746-IB32 Controller Compatibility: Specifically designed for SLC 500 PLCs Number of Inputs: 32 (DC Digital Sinking type) Operating Voltage Range: 15-30V DC (at 50°C), 15-26.4V DC (at 60°C) Backplane Current Draw: 50mA @ 5V DC Input Common Configuration: 8 Points per Common Maximum Off-State Input Voltage: 5.0V DC Nominal Input Current: 5.1mA @ 24V DC Maximum Off-State Input Current: 1.5mA Signal Response Time: 3ms (Maximum ON/OFF delay) Mounting Type: Standard SLC 500 Chassis mounting Applications Advanced Factory Automation: Delivers high-speed, dependable digital input signal processing for intricate manufacturing processes. Precision Machine Control Systems: Ensures accurate and efficient monitoring of industrial machinery and equipment movement. Distributed Control Systems (DCS): Supports robust and reliable signal acquisition in geographically widespread control architectures. SCADA & Industrial I/O Systems: Enables smooth remote monitoring and control abilities for critical infrastructure. Building Management Systems (BMS): Facilitates input from various sensors for environmental and security monitoring. Automated Test Equipment (ATE): Provides precise input readings for quality assurance and product testing applications. Why Choose This Model? Unmatched Reliability: Constructed with Allen-Bradley's renowned quality, guaranteeing long-term stable performance in demanding industrial environments. Exceptional Speed: With a 3ms response time, it is perfect for time-critical applications requiring immediate signal updates. Simplified Integration: Designed for effortless compatibility with existing SLC 500 systems, minimizing installation complexities and downtime. Cost-Effective Wiring: The 8 points per common design reduces the need for extensive wiring, lowering material and labor costs. Optimized for DC Sinking Inputs: Perfectly suited for a wide array of common industrial sensors and devices. Trusted Brand Performance: Utilize the global reputation and proven performance of Allen-Bradley for your control systems. Order NowElevate your industrial control capabilities with the Allen-Bradley 1746-IB32 Digital Input Module. Contact Palm Parts Solution today to place your order and ensure optimal performance for your automation needs.FAQWhat is the Allen-Bradley 1746-IB32?The 1746-IB32 is a 32-channel DC digital input module specifically designed for use with Allen-Bradley SLC 500 programmable logic controllers (PLCs).What type of inputs does the 1746-IB32 support?This module supports 15-30V DC sinking (negative logic) digital inputs, suitable for a variety of industrial sensors and devices.How many input points per common does the 1746-IB32 have?The 1746-IB32 features 8 input points per common, which helps simplify wiring and installation.What is the response time of the 1746-IB32?The module offers a rapid signal ON/OFF delay of just 3ms, ensuring quick data acquisition and system responsiveness.Is the 1746-IB32 compatible with all SLC 500 PLCs?Yes, it is designed for seamless integration and full compatibility with all SLC 500 series programmable logic controllers.

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PRODUCT DETAILS

Allen-Bradley 1746-IB32

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

  • Model: 1746-IB32
  • Controller Compatibility: Specifically designed for SLC 500 PLCs
  • Number of Inputs: 32 (DC Digital Sinking type)
  • Operating Voltage Range: 15-30V DC (at 50°C), 15-26.4V DC (at 60°C)
  • Backplane Current Draw: 50mA @ 5V DC
  • Input Common Configuration: 8 Points per Common
  • Maximum Off-State Input Voltage: 5.0V DC
  • Nominal Input Current: 5.1mA @ 24V DC
  • Maximum Off-State Input Current: 1.5mA
  • Signal Response Time: 3ms (Maximum ON/OFF delay)
  • Mounting Type: Standard SLC 500 Chassis mounting

Applications

  • Advanced Factory Automation: Delivers high-speed, dependable digital input signal processing for intricate manufacturing processes.
  • Precision Machine Control Systems: Ensures accurate and efficient monitoring of industrial machinery and equipment movement.
  • Distributed Control Systems (DCS): Supports robust and reliable signal acquisition in geographically widespread control architectures.
  • SCADA & Industrial I/O Systems: Enables smooth remote monitoring and control abilities for critical infrastructure.
  • Building Management Systems (BMS): Facilitates input from various sensors for environmental and security monitoring.
  • Automated Test Equipment (ATE): Provides precise input readings for quality assurance and product testing applications.

Why Choose the 1746-IB32?

  • Unmatched Reliability: Constructed with Allen-Bradley's renowned quality, guaranteeing long-term stable performance in demanding industrial environments.
  • Exceptional Speed: With a 3ms response time, it is perfect for time-critical applications requiring immediate signal updates.
  • Simplified Integration: Designed for effortless compatibility with existing SLC 500 systems, minimizing installation complexities and downtime.
  • Cost-Effective Wiring: The 8 points per common design reduces the need for extensive wiring, lowering material and labor costs.
  • Optimized for DC Sinking Inputs: Perfectly suited for a wide array of common industrial sensors and devices.
  • Trusted Brand Performance: Utilize the global reputation and proven performance of Allen-Bradley for your control systems.

Availability & Shipping

  • In stock: 1746-IB32 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-IB32 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1746-IB32 is a 32-channel DC digital input module specifically designed for use with Allen-Bradley SLC 500 programmable logic controllers (PLCs).

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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