Allen-Bradley | 1756-IB32 ControlLogix Digital DC Input Module

Overview

The Allen-Bradley 1756-IB32 is a high-density digital input module from the ControlLogix series by Rockwell Automation. This module is designed to be part of a larger automation system, offering reliable and precise input signal processing. With 32 digital input channels split into two groups of 16, it is ideal for applications requiring high channel density in a compact form factor. The module’s compatibility with 12-24V DC input voltage makes it versatile for various industrial applications.

Technical Specifications

• Brand: Allen-Bradley
• Manufacturer: Rockwell Automation
• Part Number: 1756-IB32
• Series: ControlLogix
• Module Type: Digital DC Input Module
• Number of Inputs: 32 (split into two groups of 16)
• Input Voltage: 12-24V DC Sink
• Operating Voltage Range: 10-31.2V DC
• Maximum Operating Current: 5.5 mA
• Minimum Operating Current: 2 mA at 10V DC
• Input Delay Time:
  • OFF to ON: 380 µs + filter time
  • ON to OFF: 420 µs + filter time
• Maximum Input Current (Off-State): 1.5 mA
• Backplane Current:
  • 120 mA at 5V
  • 2 mA at 24V
  • 100 mA at 5.1V
• Power Dissipation: 6.2 W @ 60°C (140°F)
• Thermal Dissipation: 21.1 BTU/hr @ 60°C (140°F)
• Terminal Block: Compatible with 1756-TBCH, 1756-TBSH
• Inrush Current: 250 mA, decays to 37% in 22 ms without activation

FAQ

• Q: What voltage does the 1756-IB32 support?
  A: The module supports a 12-24V DC sink voltage, with an operating range of 10-31.2V DC.
• Q: How can I replace the module if it fails?
  A: The module comes with a removable terminal block (RTB), which allows for easy replacement without rewiring.

Check official datasheet for more detailed information: ControlLogix and GuardLogix Controllers