Allen-Bradley 1794-ASB

Allen-Bradley 1794-ASB | FLEX I/O Remote I/O Adapter

Overview

The Allen-Bradley 1794-ASB is a FLEX I/O Remote I/O (RIO) Adapter module that connects FLEX I/O modules to a controller across a Remote I/O network. It supports up to 8 FLEX I/O modules and is ideal for distributed control systems in industrial environments, offering a reliable and compact solution.

Key Features

• Communication Protocol: Remote I/O (RIO)

• Module Capacity: Supports up to 8 FLEX I/O modules

• Power Supply: 24V DC input (range: 19.2 to 31.2V DC)

• Communication Speeds: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps

• LED Indicators: Power, Adapter Active, Adapter Fault, Local Fault

• Mounting: DIN rail

• Built-in Backplane Power Conversion: 24V DC to 5V DC

Technical Specifications

• Catalog Number: 1794-ASB

• Power Consumption: 330 mA at 24V DC

• Power Dissipation: 4.6 W maximum

• Thermal Dissipation: 15.7 BTU/hr maximum

• Operating Temperature: 0°C to 55°C (32°F to 131°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Relative Humidity: 5% to 95% non-condensing

• Shock Resistance: 30 g peak, 11 ms pulse width

• Vibration Resistance: 5 g from 10–500 Hz

• Dimensions (H x W x D): Approximately 102 mm x 94 mm x 69 mm

• Weight: Approximately 0.17 kg

• Enclosure Type: Open type

• Certifications: UL, CE, CSA

Applications

• Industrial automation and distributed control

• Remote expansion of FLEX I/O systems

• Process control and monitoring

• Integration with legacy PLC-5, SLC 500, or modern ControlLogix systems

Why Choose the 1794-ASB?

• Flexible Expansion: Easily connects multiple I/O modules over a network

• Compact Size: Saves space in control cabinets

• Reliable Communication: Supports multiple data rates for flexible system configuration

• Industrial Grade: Built for harsh industrial environments

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