The Allen Bradley 1746-IB16 is a 16-point DC input module designed for use in SLC 500 programmable logic controllers (PLCs). It provides discrete digital input capabilities, allowing the system to receive signals from various industrial sensors, switches, and other control devices. This module is ideal for manufacturing automation, material handling, and process control applications where reliable 24V DC input processing is required.
Technical Specifications
- Manufacturer: Allen Bradley (Rockwell Automation)
- Model: 1746-IB16
- Series: SLC 500
- Number of Inputs: 16 digital inputs
- Input Voltage Range: 10-30V DC
- Nominal Input Voltage: 24V DC
- Input Current Draw: 8 mA per point at 24V DC
- Backplane Current Draw: 50 mA at 5V DC
- Input Signal Delay:
- On: 8 ms max
- Off: 8 ms max
- Isolation Voltage: 1500V AC (logic to field isolation)
- Module Type: Sourcing (Sink Input)
- Mounting: Standard SLC 500 I/O chassis slot
- Wiring Terminal Type: Removable terminal block for easy installation
Key Features
- 16-channel digital input module for SLC 500 PLC systems
- Accepts 10-30V DC signals, commonly used in industrial automation
- LED status indicators for each input provide real-time diagnostics
- 8 ms input delay filtering to prevent false triggering from noise
- Optical isolation for logic-to-field protection, ensuring reliability in harsh environments
- Compact and modular design for seamless integration into SLC 500 racks
Compatible Allen Bradley Components
- Allen Bradley SLC 500 Processors (1747 Series)
- Allen Bradley 1746 I/O Chassis (1746-A4, 1746-A7, 1746-A10, 1746-A13)
- FactoryTalk View and RSLogix 500 software for system programming
- Compatible with industrial sensors, limit switches, and pushbuttons
Industry Applications
- Manufacturing automation and assembly lines
- Conveyor and material handling systems
- Packaging and food processing automation
- HVAC and building automation control
- Water and wastewater treatment plants
Installation & Operational Notes
- Installs in an SLC 500 I/O chassis slot for easy system expansion
- Requires proper wiring and signal conditioning for optimal performance
- Sourcing configuration allows it to work with sinking sensors and devices
- Periodic inspection recommended to ensure input signal integrity
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