Allen Bradley 1794-IV16 I/O Input Module

The Allen-Bradley 1794-IV16 is a 16-channel DC digital input module, designed for use in Flex I/O systems. This module enables high-speed signal acquisition and processing, providing real-time input status updates for industrial automation and process control applications. It supports 24V DC sourcing (positive logic) inputs, making it suitable for a wide range of PLC-based control systems.

Technical Specifications

  • Manufacturer: Allen-Bradley (Rockwell Automation)
  • Model: 1794-IV16
  • Module Type: 16-Channel Digital Input Module
  • Input Voltage: 24V DC sourcing (positive logic)
  • Number of Inputs: 16
  • Input Signal Delay: 0.5 ms (ON/OFF) for fast response
  • Current Draw: 50 mA at 5V DC (backplane power)
  • Input Current: 8 mA at 24V DC per channel
  • Isolation Voltage: 50V (continuous), basic insulation type
  • Mounting Type: DIN rail-mounted within a Flex I/O system
  • Operating Temperature Range: 0°C to 55°C (32°F to 131°F)
  • Certifications: UL, CE, CSA, FM approved for industrial use

Key Features

  • 16-channel input module for DC signal processing
  • Designed for Flex I/O distributed control systems
  • High-speed input response with low signal delay
  • 24V DC sourcing inputs with individual LED indicators for diagnostics
  • Compact DIN rail-mounted design for space efficiency
  • Compatible with various Allen-Bradley PLCs and controllers

Compatible Allen-Bradley Components

  • Allen-Bradley 1794 Flex I/O Adapters (Ethernet/IP, ControlNet, DeviceNet, Remote I/O)
  • Allen-Bradley 1794 Flex I/O Chassis and Power Supplies
  • Allen-Bradley Logix5000 and CompactLogix Controllers
  • Allen-Bradley 1794-TB2, 1794-TB3, and 1794-TB3S Terminal Bases

Industry Applications

  • Manufacturing automation and robotics
  • Material handling and conveyor systems
  • Process monitoring in oil, gas, and chemical industries
  • Water and wastewater treatment facilities
  • Power generation and energy distribution control

Installation & Operational Notes

  • Ensure proper wiring of sourcing (positive logic) inputs for correct signal processing
  • Verify backplane power availability (50 mA at 5V DC) before installation
  • Use appropriate terminal bases (1794-TB3, TB2, TB3S) for connectivity
  • Check LED indicators for real-time input status monitoring
  • Follow Allen-Bradley’s recommended safety and installation guidelines for optimal performance

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