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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