Allen Bradley 1746-IC16 — Comprehensive Technical Overview

1. Product Introduction

The Allen Bradley 1746-IC16 is a digital DC input module designed for modular PLC systems, specifically configured as a sourcing input type. It is used to interface with field devices that operate as sinking outputs, allowing reliable signal acquisition from industrial equipment.

This module provides 16 discrete input channels, enabling efficient monitoring of multiple field signals within a single slot. It converts DC voltage signals into logic-level data that the controller can interpret and use for decision-making and process control.

Installed in a chassis, the 1746-IC16 communicates with the processor via the backplane, ensuring stable and real-time transmission of input data. It is widely used in applications where compatibility with sinking field devices is required.

2. Brand and Series

• Brand: Allen-Bradley
• Series: SLC 500 Series
• Product Type: Digital DC Input Module (Sourcing)

The SLC 500 series is a modular automation platform. The 1746-IC16 expands its functionality by enabling flexible DC input configurations, particularly in systems using sinking devices.

3. Product Parameters

Below is a detailed and structured parameter table for the 1746-IC16:

4. Product Applications

The 1746-IC16 is widely used in automation systems where DC input signals from sinking devices must be monitored:

• Industrial sensors with sinking outputs
• Push button and control panel inputs
• Limit switch monitoring
• Machine status and feedback systems
• Conveyor and material handling systems
• Packaging and assembly lines
• General-purpose discrete input applications

It is especially suitable for systems requiring compatibility with sourcing input configurations.

5. Product Advantages

Flexible input compatibility
Designed to work with sinking field devices, expanding system compatibility.

High channel capacity
Provides 16 input points in a single module, improving system efficiency.

Reliable signal detection
Ensures stable and accurate processing of DC input signals.

Electrical isolation
Protects the control system from electrical noise and transient disturbances.

Fast response time
Allows timely detection of input signal changes.

Easy integration
Seamlessly fits into modular PLC systems for straightforward installation.

6. Recommended Models (Same Series or Related)

Below are 5 related models within the same SLC 500 series or similar I/O category:

These modules are often combined to build complete and flexible digital I/O systems.

7. Recommended Popular Models (Same Brand)

Below are 5 widely used models from the same brand in industrial automation systems: