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The 140DDI36400 is a high-density, low-voltage DC discrete input module for Schneider Electric’s Modicon Quantum automation platform. Delivering 96 galvanically-isolated 24 V DC inputs in a single-slot package, it allows plant designers to consolidate vast numbers of digital signals—push-buttons, proximity switches, photo-cells, valve position sensors—into one compact node, cutting panel footprint, terminal blocks and wiring runs by up to 75 %.
Built for continuous-duty process and discrete applications, the module plugs directly into any Quantum local, remote or distributed-drop rack. Hot-swappable construction and automatic I/O mapping let users add or replace cards without powering down the PLC, eliminating unplanned stops and simplifying maintenance windows. On-board diagnostics report individual channel status, field-power loss and module health to the CPU and SCADA layer via Unity Pro or EcoStruxure™ Control Expert, enabling predictive maintenance and faster fault recovery.





