Allen-Bradley 1734-IB4D is a Point I/O 4-channel DC input module that provides four sinking input channels for 24V DC signals. It includes per-channel open-wire and short-circuit diagnostics, enabling quick fault isolation in a Rockwell Automation Point I/O network. This module integrates into a Point I/O system and is used to monitor digital sensors such as limit switches or proximity sensors in industrial control applications, with compatibility to Rockwell controllers through the Point I/O architecture.
