Siemens 6ES5432-4UA11 PLC Analog Input Module

Siemens 6ES5432-4UA11 is a SIMATIC S5 digital input module with 32 DC 24V inputs (DI 432), floating with group signals, and shipped in its package. This compact input device provides 32 parallel 24-volt DC channels to read sensor states from buttons, switches and similar devices in legacy SIMATIC S5 automation systems, and is categorized as the DI 432 family. The "U" compact variant is designed for integration into S5 backplanes and is suitable for use in S5-115U when paired with the adapter casing 6ES5491-0LB11, enabling compatibility with older S5 racks. Typical applications include wiring digital input signals to an S5 controller for machine control, status monitoring, and basic process automation in industrial environments. The inputs are 24 V DC, floating, providing isolation from the backplane to help manage wiring faults and cross-talk in dense I/O installations.