ALLEN BRADLEY 1756-IB32 INPUT MODULE

Allen-Bradley 1756-IB32 Digital DC Input Module

The Allen-Bradley 1756-IB32 is a Digital DC Input Module from the ControlLogix series by Rockwell Automation, engineered for precision in industrial control and monitoring applications. With 32 sink-type digital inputs, it is ideal for high-density I/O systems requiring fast and reliable signal detection.

This module operates within a 12-24V DC range, accommodating an input voltage range of 10 to 31.2V DC, and ensures accurate signal capture with input delay times of 2 milliseconds plus configurable filter times. It supports hardware delay times of up to 380 µs (OFF to ON) and 420 µs (ON to OFF), optimizing real-time responsiveness in automated processes.

Electrical efficiency is a key strength of the 1756-IB32. It draws 120 mA at 5V, 100 mA at 5.1V, and only 2 mA at 24V from the ControlLogix backplane, with a maximum power dissipation of 6.2 W and thermal dissipation of 21.1 BTU/hr at 60°C. This ensures stable operation even in demanding industrial environments.

The module features electronic keying, which enhances safety and configuration accuracy by preventing incorrect module insertion. It also adheres to tight current thresholds, with a maximum off-state input current of 1.5 mA and a minimum operating current of 2 mA at 10V DC, ensuring precise input signal handling.

Compact, efficient, and fully integrated into the ControlLogix architecture, this module is a go-to solution for scalable and reliable digital input management in modern automation systems.