Schneider Electric 140-DAI-540-00 Digital Input Module

The Schneider Electric Modicon Quantum 140DAI54000 is a 16-channel digital input module for TSX Quantum controllers that accepts 115 V AC signals from sensors and switches, delivering 16 discrete input points to the PLC for digital processing. Each channel provides a separate input path, enabling reliable monitoring of 115 VAC devices such as pushbuttons and limit switches within a single 16-channel block. As of December 31, 2024, Schneider Electric lists the 140DAI54000 as discontinued, with end-of-service dated January 30, 2025; for similar needs, the recommended replacement is BMXDAI0814, an 8-channel discrete input module rated for 100–120 V AC, configured for X80 backplane systems. In typical automation applications, this module would be wired to sense the state of 115 VAC sensors and feed those states to the Modicon Quantum controller for control logic, sequencing, and safety interlocks on manufacturing lines.