Allen-Bradley 1756-IB16 ControlLogix Digital Input Module

Product Description

The 1756-IB16 is a standard DC digital input module developed for ControlLogix automation platforms. Manufactured by Allen-Bradley, it provides 16 input channels arranged into two groups, enabling efficient signal acquisition from field devices such as sensors, switches, and pushbuttons.

This module is designed for 24V DC systems and supports a wide operating voltage range, making it suitable for diverse industrial environments. Inputs are grouped to simplify wiring and power distribution, while maintaining reliable performance for general-purpose discrete input applications.

The 1756-IB16 is widely used where cost-effective and stable input monitoring is required without the need for channel-level isolation.

Key Functional Characteristics

• 16 DC digital input channels

• Organized into two groups for simplified wiring

• Designed for 12/24V DC signal levels

• Compatible with sinking input devices

• Stable operation across a wide voltage range

• Compact design for ControlLogix chassis integration

Technical Specifications

Application Scenarios

The 1756-IB16 is typically used in applications requiring reliable monitoring of discrete input signals, such as limit switches, proximity sensors, and operator interface devices. It is well suited for manufacturing lines, assembly systems, and general machine control where grouped inputs are sufficient.

FAQ

How is the 1756-IB16 different from isolated input modules?
Unlike isolated modules, the 1756-IB16 groups inputs together electrically, which is suitable for standard applications but less ideal for environments with high electrical noise.

What type of input devices can be connected?
It is designed for sinking input devices operating within the 10–31.2V DC range.

Is this module compatible with all ControlLogix chassis?
Yes, it can be installed in any local or remote ControlLogix chassis.

When should I choose an isolated module instead?
If your application involves signals from different ground potentials or high-noise environments, an isolated module such as IB16I would be more appropriate.