Allen-Bradley 1734-IE2C Digital Input Module

Allen-Bradley 1734-IE2C is a POINT I/O 2-channel analog current input module designed for use in 24V DC field environments. It accepts analog current signals on two channels in the 0–21 mA range (4–20 mA sensors are common) and converts them into digital values that the controller can read. The module provides 16-bit resolution per channel, enabling high-precision measurement of sensor outputs, with the data mapped to the POINT I/O backplane for quick communication with the PLC. As a member of Allen-Bradley’s POINT I/O family, the 1734-IE2C integrates into a POINT I/O chassis, offering modular, scalable I/O for distributed control architectures without a bulky cabinet footprint. Typical applications include interfacing with flow meters, level sensors, pressure transducers, and other process instruments that produce a current output, where precise monitoring of small changes in current translates to accurate process measurements. The catalog number 1734-IE2C identifies a two-channel analog input card that operates on a standard 24V DC supply and connects to field devices using conventional current-loop wiring. This module is suitable for automation projects seeking to modernize legacy 4–20 mA sensing with a compact, pluggable IO solution within a Rockwell Automation control system.