Allen-Bradley | 1746-IB16| SLC 500

Product Description: Allen-Bradley 1746-IB16

The Allen-Bradley 1746-IB16 is a 16-point digital input module engineered for the SLC 500 programmable controller series. It accepts 24V DC sink-type input signals, making it suitable for interfacing with various DC-powered field devices such as sensors, limit switches, and pushbuttons. Its compact form factor, robust input isolation, and quick response time make it ideal for a wide range of industrial automation applications.

Key Features

• 16 digital DC sinking input channels
• Accepts 24V DC input signals
• Compatible with sourcing field devices
• Fast input response time for high-speed applications
• LED indicators for individual channel status
• Optical isolation between field inputs and backplane logic
• Compatible with all SLC 500 chassis and processors

Technical Specifications

• Number of Inputs: 16
• Input Type: DC Sink (requires sourcing devices)
• Input Voltage Range: 10–30V DC (nominal 24V DC)
• On-State Voltage: ≥10V DC
• Off-State Voltage: ≤5V DC
• On-State Current: ≥6 mA
• Off-State Current: ≤1.5 mA
• Backplane Current Draw: 65 mA at 5V DC
• Isolation Voltage: 1500V RMS (field to backplane)
• Operating Temperature: 0°C to 60°C
• Module Width: 1 slot

Application Areas

• Monitoring of industrial DC sensors and switches
• Discrete control in manufacturing and assembly lines
• Material handling and packaging systems
• Robotics and machine automation
• Building and infrastructure control systems

Advantages

• High-density design allows efficient use of rack space
• Fast and reliable 24V DC input detection
• Optical isolation enhances system protection and safety
• Easily integrates into SLC 500 systems
• Clear status indication simplifies diagnostics and troubleshooting