Schneider Electric AS-BADU-204 Analog Input Module

Schneider Electric AS-BADU-204 is a TSX Compact four-channel analog input module for Modicon automation systems, designed to collect low-level analog signals from multiple sensors in compact control panels. Each channel supports RTD PT100 inputs (4XPT100) and presents a ±500 mV measurement range, enabling precise capture of small resistance-based signals after excitation and conditioning built into the module. Designed for seamless integration into the TSX Compact I/O bus, the AS-BADU-204 expands the host PLC's analog input capability to monitor temperatures and other analog signals across four independent channels. Common applications include temperature monitoring in motors and equipment, process control loops, and HVAC systems, where four-point RTD sensing and compact I/O density help simplify wiring and improve response times. With four discrete inputs and the familiar Modicon hardware lineage, the AS-BADU-204 provides a stable, familiar interface for industrial automation projects requiring reliable RTD-based measurements.