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Allen-Bradley 1794-ASB FLEX I/O Adapter Module

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Allen-Bradley 1794-ASB

by Allen-Bradley

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OverviewThe Allen-Bradley 1794-ASB FLEX I/O Adapter Module is a crucial component for contemporary industrial automation. It serves as a bridge, connecting versatile FLEX I/O modules with established Remote I/O (RIO) networks. This adapter ensures smooth communication and system integration, boosting the efficiency and dependability of distributed control architectures. Designed for accuracy and optimal functioning, the 1794-ASB guarantees rapid and precise transmission of essential I/O data throughout your industrial network, streamlining real-time process oversight and control. Its compact footprint, combined with extensive diagnostic tools, makes it an excellent choice for environments where space is limited and operational uptime is critical. With support for up to eight FLEX I/O modules, this unit offers significant modularity and scalability, effortlessly adapting to evolving operational needs. Whether you are upgrading existing systems or deploying new ones, the Allen-Bradley 1794-ASB is a trusted option for achieving cohesive and responsive industrial control.Key Features High Compatibility & Scalability: Integrates up to eight FLEX I/O modules, allowing for adaptable system designs to meet diverse application requirements. Seamless Remote I/O Network Integration: Engineered to interface with Remote I/O (RIO) networks, ensuring efficient connectivity and data exchange in distributed control environments. Configurable Baud Rates: Offers adjustable communication speeds (57.6, 115.2, or 230.4 Kbps) to align with various industrial application demands, optimizing network performance. Comprehensive LED Diagnostics: Provides real-time status through intuitive LED indicators for module, communication, and I/O status, simplifying troubleshooting and maintenance. Compact & Space-Saving Design: Its dimensions (3.4 in H x 3.7 in W x 2.7 in D) make it suitable for installations with limited panel space, without compromising capability. Broad Operating Temperature Range: Built for reliable operation in demanding industrial settings, functioning between -20°C to 70°C (-4°F to 158°F). Flexible Power Supply: Operates effectively across a wide input voltage range of 19.2 to 31.2 V DC, ensuring consistent performance with various power setups. Technical Specifications Model Number: 1794-ASB Communication Protocol: Remote I/O (RIO) Input Voltage Range: 19.2 to 31.2 V DC Maximum Power Consumption: 450 mA at 24V DC Supported I/O Modules: Up to 8 FLEX I/O modules Baud Rate: Selectable (57.6, 115.2, or 230.4 Kbps) Status Indicators: LED diagnostics for module, communication, and I/O status Operating Temperature: -20°C to 70°C (-4°F to 158°F) Enclosure Type: Open-style Dimensions: Height: 3.4 in (86 mm) Width: 3.7 in (94 mm) Depth: 2.7 in (69 mm) Certifications: UL, CE, CSA Applications Distributed Control Systems: Excellent for implementing robust distributed control architectures in complex manufacturing facilities. Remote Monitoring & Control: Enables efficient remote data acquisition and control for industrial processes and equipment across various automation schemes. Process Automation: Offers a scalable I/O solution for process automation requiring modular expansion and real-time data handling. Legacy System Integration: Facilitates seamless integration of modern FLEX I/O capabilities with existing control systems via Remote I/O networks. Machine Control: Enhances control and monitoring for individual machines and complete work cells in production lines. Why Choose?This module offers enhanced system flexibility by allowing connection of up to 8 FLEX I/O modules, providing unparalleled adaptability for designing and expanding your control system. Its robust design ensures reliable communication through built-in support for the proven Remote I/O protocol, bolstering the efficiency and consistency of your industrial network.Order NowReady to upgrade your industrial automation system? Purchase the Allen-Bradley 1794-ASB FLEX I/O Adapter Module today and experience enhanced compatibility, scalability, and reliable performance. Contact us to learn more or place your order.FAQHow many FLEX I/O modules can the 1794-ASB support?The 1794-ASB is designed to support up to eight FLEX I/O modules, offering significant flexibility for system expansion.What communication protocols does this adapter use?The adapter utilizes the Remote I/O (RIO) communication protocol for seamless integration within industrial networks.Can I adjust the communication speed?Yes, the 1794-ASB offers selectable baud rates of 57.6, 115.2, or 230.4 Kbps to meet various application needs.What is the operating temperature range?This module is built to operate reliably in temperatures ranging from -20°C to 70°C (-4°F to 158°F).Is the 1794-ASB suitable for limited space installations?Yes, its compact design with dimensions of 3.4 in H x 3.7 in W x 2.7 in D makes it an excellent choice for installations where panel space is at a premium.

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PRODUCT DETAILS

Allen-Bradley 1794-ASB

Overview

This is a genuine Allen-Bradley component. 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

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

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

Technical Specifications

  • Model Number: 1794-ASB
  • Communication Protocol: Remote I/O (RIO)
  • Input Voltage Range: 19.2 to 31.2 V DC
  • Maximum Power Consumption: 450 mA at 24V DC
  • Supported I/O Modules: Up to 8 FLEX I/O modules
  • Baud Rate: Selectable (57.6, 115.2, or 230.4 Kbps)
  • Status Indicators: LED diagnostics for module, communication, and I/O status
  • Operating Temperature: -20°C to 70°C (-4°F to 158°F)
  • Enclosure Type: Open-style
  • Dimensions:
    • Height: 3.4 in (86 mm)
    • Width: 3.7 in (94 mm)
    • Depth: 2.7 in (69 mm)
  • Certifications: UL, CE, CSA

Applications

  • Distributed Control Systems: Excellent for implementing robust distributed control architectures in complex manufacturing facilities.
  • Remote Monitoring & Control: Enables efficient remote data acquisition and control for industrial processes and equipment across various automation schemes.
  • Process Automation: Offers a scalable I/O solution for process automation requiring modular expansion and real-time data handling.
  • Legacy System Integration: Facilitates seamless integration of modern FLEX I/O capabilities with existing control systems via Remote I/O networks.
  • Machine Control: Enhances control and monitoring for individual machines and complete work cells in production lines.

Why Choose the 1794-ASB?

This module offers enhanced system flexibility by allowing connection of up to 8 FLEX I/O modules, providing unparalleled adaptability for designing and expanding your control system. Its robust design ensures reliable communication through built-in support for the proven Remote I/O protocol, bolstering the efficiency and consistency of your industrial network.

Availability & Shipping

  • In stock: 1794-ASB 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 1794-ASB ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1794-ASB is designed to support up to eight FLEX I/O modules, offering significant flexibility for system expansion.

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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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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