Schneider Electric AS-BADU-256C Modicon Analog Input Module

The Schneider Electric Modicon AS-BADU-256C is a 4-channel analog input module engineered for standard rack mounting within Modicon 984 and Compact programmable logic control systems. Designed for high-speed signal processing in automated manufacturing environments, the module acquires bipolar voltage and current signals, converting field sensor values into digital data register values for the host CPU.

Signal Acquisition and Environmental Protection

Equipped with four 2-pole inputs, the AS-BADU-256C accepts bipolar analog voltage inputs up to +/-10 V and current signals up to +/-20 mA. The module converts incoming analog process variables using an 11-bit plus sign resolution scheme (12-bit overall resolution), providing rapid 10 ms update cycles to support fast dynamic process loops.

The "C" suffix model features conformal coating on the internal printed circuit board assemblies, offering defense against atmospheric humidity, condensation, and chemical contaminants. Packaged in a compact form factor measuring 16.5 cm in width by 20.5 cm in length, the hardware easily retrofits into existing legacy Modicon 984 chassis racks without requiring additional control cabinet modifications.

Technical Specifications

Frequently Asked Questions

Q: What input signal ranges are supported by the AS-BADU-256C module? A: The module handles bipolar voltage signals up to +/-10 V and current signals up to +/-20 mA across its four 2-pole input channels.

Q: What does the "C" suffix signify in the AS-BADU-256C model number? A: The "C" suffix indicates that the internal circuit board assembly has a conformal coating, providing enhanced protection against corrosive environments, dust, and moisture.

Q: What is the update speed of the analog-to-digital signal conversion on this module? A: The module executes signal conversion with a scan time of 10 ms.