Schneider Electric 140ACI04000 Analog Input Module

Schneider Electric 140ACI04000 Analog Input Module is a Modicon Quantum I/O card that provides 16 analog input channels with multirange capability for the Quantum PLC family. The module is designed to accept analog signals from sensors and transduce them into digital data for the controller, supporting multiple input types within a single module, including current-loop signals. Schneider Electric lists 140ACI04000 as discontinued (end of commercialization December 31, 2022) with end-of-life service through December 31, 2030; the recommended replacement for newer X80 architectures is BMXAMI0810, an analog isolated high-level input module for Modicon X80 with 8 inputs supporting 0–20 mA, 4–20 mA, and 10 V signals (positive or negative). When planning upgrades, verify compatibility with your existing Quantum backplane and firmware, and consider migrating to an X80‑based I/O solution for ongoing support. This 16-channel module was used in legacy Quantum installations to read multiple analog sensors, converting their signals into digital values for the PLC to process and monitor across industrial processes.