Allen Bradley 1791-DSIB8XOB8 24 VDC Block

The Allen Bradley 1791-DSIB8XOB8 is a 24V DC CompactBlock I/O module designed for distributed control applications in industrial automation. This module features 8 input and 8 output channels, providing high-speed signal processing and reliable communication with Allen Bradley DeviceNet networks. The rugged, compact design makes it ideal for harsh industrial environments, machine automation, and process control applications.

Technical Specifications

  • Manufacturer: Allen Bradley (Rockwell Automation)
  • Model: 1791-DSIB8XOB8 (Alternate SKU: 1791-DS1B8X0B8)
  • Series: CompactBlock I/O
  • Voltage Rating: 24V DC
  • Number of Inputs: 8 Digital Inputs
  • Number of Outputs: 8 Digital Outputs
  • Output Type: Sourcing (PNP)
  • Communication Protocol: DeviceNet
  • Mounting Type: DIN Rail Mount
  • Enclosure Rating: IP20 (Protection against solid objects, not waterproof)
  • Operating Temperature: 0°C to 55°C (32°F to 131°F)
  • Certifications: UL, CE, CSA, DeviceNet Certified

Key Features

  • Compact, space-saving I/O block with 8 inputs and 8 outputs
  • DeviceNet communication for easy integration into distributed control systems
  • 24V DC power operation ensures compatibility with most industrial systems
  • Fast switching response time for precise automation control
  • Rugged IP20-rated enclosure for durability in industrial environments
  • Reliable sourcing (PNP) outputs for industrial machine control
  • Designed for use in harsh industrial environments

Compatible Allen Bradley Components

  • Allen Bradley DeviceNet Adapters (1788 Series, 1794-AENT)
  • Allen Bradley ControlLogix and CompactLogix PLCs
  • RSNetWorx for DeviceNet Configuration
  • FactoryTalk View for monitoring and control

Industry Applications

  • Machine automation and industrial robotics
  • Material handling and conveyor systems
  • Packaging and process control
  • Automated assembly lines
  • Water and wastewater treatment plants

Installation & Operational Notes

  • Requires a DeviceNet master for communication with PLCs and controllers
  • Mounts easily on a DIN rail for quick installation
  • Ensure proper voltage and wiring connections before operation
  • Use RSNetWorx software for DeviceNet configuration and troubleshooting
  • Routine system maintenance recommended to ensure long-term performance

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