Allen-Bradley 1771-IBD Digital Input Module

The Allen-Bradley 1771-IBD is a 16-point sinking/sourcing digital input module for PLC-5 controllers. It interfaces with external devices providing a DC voltage between 10 and 30 volts. The module includes a common ground connection. Each input point has an adjustable filter delay from 0.2 to 2.0 seconds.

Features

• 16 sinking/sourcing digital inputs
• Input voltage range: 10 to 30 VDC
• Common ground connection
• Individual filter delay for each input point
• Status LEDs for each input point
• Half-size module

Technical Specifications

• Input voltage range: 10 to 30 VDC
• Input current: 2.2 mA per input
• Output voltage range: 0 to 5 VDC
• Output current: 10 mA per output
• Filter delay: 0.2 to 2.0 seconds
• Power consumption: 7.3 watts
• Operating temperature: -40 to 75 degrees C
• Storage temperature: -40 to 85 degrees C
• Humidity: 5 to 95% non-condensing
• Vibration: 5 to 35 G at 20 to 500 Hz
• Shock: 30 G for 11 ms
• Dimensions: 3.94 inches (100 mm) x 6.26 inches (160 mm) x 0.87 inches (22 mm)
• Weight: 0.66 pounds (300 grams)

Applications

The Allen-Bradley 1771-IBD is versatile. It is used in various applications, such as:

• Reading pushbuttons and switches
• Monitoring sensors
• Interfacing with relays
• Controlling solenoids
• Reading encoders

Additional Information

The Allen-Bradley 1771-IBD is no longer in production. However, it is still widely used in legacy applications. Replacement modules and repair services are available from third-party vendors.