1771-IB Digital DC Input Module by Allen-Bradley | Specifications

Allen-Bradley 1771-IB Digital DC Input Module

The Allen-Bradley 1771-IB brings reliable 8-channel DC input control to PLC-5 systems. This compact module converts field device signals to processor logic levels. It offers excellent noise immunity and easy installation for industrial applications.

Detailed Technical Specifications

• Brand: Allen-Bradley
• Manufacturer: Rockwell Automation
• Model Number: 1771-IB
• Module Type: Digital DC Input Module
• Compatible Series: PLC-5 Systems
• Number of Inputs: 8 channels
• Voltage Range: 10-27 V DC operating (10-60 V DC category)
• Current Consumption: 8mA @ 12V DC, 24mA @ 24V DC
• Backplane Current: 74 milliamperes
• Off-State Current: 3.0 milliamperes maximum
• Signal Delay: 12ms (±7ms) ON, 20ms (±15ms) OFF
• Power Dissipation: 5.7 Watts maximum
• Thermal Dissipation: 19.3 BTU/hour
• Isolation Voltage: 1500V AC continuous
• Operating Temperature: 0-60°C (32-140°F)
• Dimensions: 89 x 165 x 51 mm (3.5 x 6.5 x 2.0 in)
• Connection Method: 1771-WN wiring arm

Package Contents

• One 1771-IB Digital Input Module
• Installation documentation and user manual

Shipping & Warranty Information

• This product includes 12-month warranty coverage
• We ship worldwide using FedEx, UPS, and DHL express services

Frequently Asked Questions

• What types of devices can connect to this module?
  The 1771-IB works with dry-contact switches, selector switches, pushbuttons, and various sensors.
• How many input points does this module provide?
  It offers eight independent DC input channels in a single module.
• What voltage levels does this module support?
  It operates with 10-27V DC signals and handles up to 60V DC input category.
• Does this module provide status indication?
  Yes, it features eight red LED indicators for each input channel status.
• Is this module protected against electrical noise?
  Yes, it includes input filtering and opto-isolation for noise immunity.