ControlLogix | Allen-Bradley 1756-IB32K | 32-Channel DC Input Module

Product Description

The Allen-Bradley 1756-IB32K is a ControlLogix digital DC input module engineered for high-density input applications. With 32 sink-type input channels, it provides reliable signal monitoring across a wide voltage range. Designed for integration into ControlLogix systems, this module ensures efficient performance with low power consumption and robust electrical characteristics.

Technical Specifications

• Manufacturer Allen-Bradley

• Product Line ControlLogix

• Part Number 1756-IB32K

• Category PLCs

• Weight 1.00 lbs (0.45 kg)

• Module Type Digital DC Input Module

• Number of Inputs 32 channels

• Nominal Input Voltage 12–24 V DC (sink-type)

• Operating Voltage Range 10–31.2 V DC

• Input Delay Time 420 µs plus selectable filter time

• Minimum Operating Current 2 mA

• Maximum Operating Current 5.5 mA

• Off-State Input Current (Max) 1.5 mA

• Power Dissipation 6.2 W at 60 °C

• Backplane Current @ 5 V DC 120 mA

• Backplane Current @ 24 V DC 2 mA

Application Scenarios

• High-density digital input monitoring in ControlLogix racks

• Machine-level automation requiring multiple DC input points

• Industrial systems needing reliable sink-type input modules

FAQ

• Q: How many input channels are available?  A: The module supports 32 digital DC inputs.

• Q: What is the operating voltage range?  A: 10–31.2 V DC.

• Q: What type of input configuration is supported?  A: Sink-type DC inputs.