Large Stock Allen-Bradley DC Input Module 8-Point Flex I/O | 1794-IB8

Description

Allen-Bradley 1794-IB8 Flex I/O 8-Point DC Input Module

The Allen-Bradley 1794-IB8 delivers reliable performance in the FLEX I/O system from Rockwell Automation. This 24V DC input module features 8 current sinking points for versatile sensing. It connects field devices like sensors and switches to your control system. The module supports hot swapping for easy maintenance without system shutdown. It works with major networks including EtherNet/IP and DeviceNet for flexible integration.

Key Technical Specifications & Data

• Brand: Allen-Bradley | Model: 1794-IB8
• Product Type: DC Input Module for Flex I/O Systems
• Number of Inputs: 8 Current Sinking Channels
• Input Voltage: 24V DC Nominal (10V – 31.2V DC Range)
• On-state Current: 2.0mA minimum, 12.0mA maximum
• Off-state Current: 1.5mA maximum per channel
• Off-state Voltage: 5V DC maximum
• Input Impedance: 4.6 kΩ nominal
• Response Time: 5ms maximum (On to Off / Off to On)
• Power Dissipation: 3.5W maximum at 31.2V DC
• Flexbus Current: 20mA @ 5V DC

Environmental Ratings & Durability

• Operating Temperature: 0 to 55 °C (32 to 131 °F)
• Storage Temperature: -40 to 85 °C (-40 to 185 °F)
• Relative Humidity: 5% to 95% (non-condensing)
• Vibration Resistance: 5g @ 10-500 Hz per IEC 60068-2-6
• Shock Resistance: 30g per IEC 60068-2-27
• Noise Immunity: 1000V peak for 1μs per IEC 61000-4-4

Packaging & Shipping Details

• Your order includes one new 1794-IB8 module in original packaging.
• We include all necessary installation and operation documentation.
• We ship worldwide using express carriers like FedEx, UPS, and DHL.
• All products come with a 12-month warranty covering defects.

Comparison With Related Products

• For output applications, see the 1794-OV16 module.
• Consider the 1794-OV16P for different output configurations.

Frequently Asked Questions (FAQ)

• What types of sensors work with this input module?
  It works perfectly with standard 24V DC proximity sensors and push buttons.
• Can I mix AC and DC signals on the same module?
  No, the 1794-IB8 is designed for DC signals only.
• What is the minimum input voltage to detect an On-state?
  The module requires at least 10V DC to reliably recognize an input signal.
• Does this module support high-speed counter applications?
  No, with a 5ms response time, it is for standard speed applications.
• How do I troubleshoot a channel that is not working?
  Check the LED indicator and verify your sensor voltage and wiring.

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