Allen-Bradley 1756-IR12 | ControlLogix 12-Channel Analog Input Module

Overview

The 1756-IR12 is a ControlLogix analog input module designed for general-purpose industrial applications. It accommodates a wide variety of RTD sensor types.

Channels and Input Range

This module features 12 non-isolated channels with 3-wire RTD connections. Input ranges include 1–500, 2–1000, 4–2000, and 8–4000 Ohms for versatile sensing.

Data Resolution and Processing

The 1756-IR12 provides 24-bit data resolution, ensuring precise measurements. It includes digital filters, notch filters, and under-range/over-range detection for reliable data quality.

Mounting and Display

The unit mounts on a standard ControlLogix chassis and includes status LEDs to indicate channel operation and system conditions.

Electrical Specifications

The module draws 200 mA at 5.1 V DC and 150 mA at 24 V DC. It supports continuous isolation voltage up to 250 Volts, providing safety and stability.

Environmental Range

The 1756-IR12 operates between 0°C and 60°C and tolerates standard industrial conditions. Its design ensures robust performance across diverse applications.

Additional Features

It supports sensor offset, wire-off detection, automatic range selection, and multiple sensor types. The module integrates seamlessly within the Bulletin 1756 ControlLogix system.