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A-B 1756-IB16 ControlLogix Digital Input Module

Product Overview

The Allen-Bradley 1756-IB16 is a 16-point DC digital input module designed for the ControlLogix programmable automation platform. It receives 12/24 V DC signals from field devices such as proximity sensors, push buttons, and limit switches, and transfers their status to the controller for processing.

Key Technical Specifications

Specification	Details
Brand	Allen-Bradley (A-B)
Model	1756-IB16
Product Series	ControlLogix
Product Type	Digital DC Input Module
Number of Inputs	16 points
Nominal Input Voltage	24 V DC
Operating Voltage Range	10–31.2 V DC
Input Type	12/24 V DC sinking
Input Grouping	2 groups of 8 inputs
Input Current Draw at 24 V	2 mA
Backplane Current Draw at 5.1 V	100 mA
Maximum Power Dissipation	5.1 W
Isolation	250 V continuous, inputs-to-backplane and group-to-group
Connection	20-pin removable terminal block interface
Mounting	ControlLogix chassis
Lifecycle Status	Active US +1

Features & Advantages

Provides 16 discrete DC input channels.
Supports common 12 V and 24 V DC industrial control signals.
Individual channel status indicators simplify troubleshooting.
Configurable input filtering helps manage signal transitions.
Integrates with the ControlLogix modular PLC platform.
Supports distributed industrial automation and machine monitoring.

Typical Applications

PLC-based industrial automation
Proximity and limit switch monitoring
Push-button and selector-switch inputs
Machine status monitoring
Manufacturing and packaging equipment
Distributed I/O systems

Important Notes

This is an input-only module; it does not provide digital outputs.
The operating input voltage is 10–31.2 V DC, not 120 V AC.
A compatible ControlLogix chassis and removable terminal block are required; check whether the terminal block is included with your item.
Verify wiring, controller compatibility, and module revision before installation.