Allen-Bradley 1756-IF8 8-Channel Analog Input Module

The Allen-Bradley 1756-IF8 is an eight-channel analog input module for Rockwell Automation's ControlLogix I/O system, designed to digitize eight sensor signals on a single card that plugs into the 1756 backplane. It features a 36-pin terminal interface and supports both voltage and current input signals across its eight channels, enabling flexible field wiring for a variety of process and machine monitoring applications. Per-channel input ranges include -10 to 10 V, 0 to 10 V, 0 to 5 V, and 0 to 20 mA, with configured ranges allowing straightforward integration of common instrumentation such as 0–10 V sensors and 4–20 mA transmitters. In a typical ControlLogix installation, the 1756-IF8 communicates with the controller over the ControlLogix I/O bus, providing real-time analog data to the PLC for scaling, control loops, and monitoring. The module is part of the 1756 ControlLogix family and is intended for use in industrial automation environments requiring eight simultaneous analog inputs on a single module, making it suitable for applications like process measurement, machine health monitoring, and batch control where multiple sensors feed a single controller.