The Allen-Bradley 1771-IB is a 16-point DC input module designed for use with PLC-5 programmable logic controllers. This module provides high-speed digital signal processing, making it ideal for monitoring and controlling industrial automation systems. It operates on 24V DC, ensuring efficient and reliable signal acquisition in manufacturing, material handling, and process automation applications.
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Model: 1771-IB (Alternate SKU: 1771-1B)
- Module Type: Digital DC Input
- Number of Inputs: 16
- Voltage Rating: 24V DC (Nominal)
- Input Signal Delay: 5 ms ON / 5 ms OFF
- Input Current: 8 mA per input at 24V DC
- Isolation Voltage: 1500V between field and logic
- Backplane Current Load: 150 mA at 5V DC
- Power Dissipation: 3.5W (Maximum)
- Thermal Dissipation: 11.9 BTU/hr
- Mounting Type: Rack-mounted in a 1771 I/O chassis
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, CSA, Class I Div 2 Hazardous Location Approval
Key Features
- 16 digital input channels for monitoring 24V DC signals
- Fast response time for high-speed control applications
- Optical isolation ensures protection from electrical noise and surges
- Designed for PLC-5 systems, providing seamless integration
- Backplane-powered operation simplifies wiring and installation
- LED status indicators for real-time input monitoring
- Rack-mounted design for modular and scalable I/O expansion
Compatible Allen-Bradley Components
- Allen-Bradley PLC-5 processors (e.g., 1785-L20B, 1785-L40C5)
- Allen-Bradley 1771 I/O chassis and power supplies
- Allen-Bradley PanelView HMIs for monitoring and control
- Other 1771 series digital and analog I/O modules
Industry Applications
- Factory automation and machine control
- Material handling and conveyor automation
- Oil and gas processing systems
- Water and wastewater treatment plants
- Power generation and energy management
Installation & Operational Notes
- Ensure correct wiring and voltage compatibility before installation
- Verify proper backplane connectivity within the PLC-5 chassis
- Use LED indicators for real-time troubleshooting and diagnostics
- Regular maintenance checks recommended to ensure long-term reliability
- Follow Allen-Bradley installation guidelines for optimal performance
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