Siemens 6ES5432-4UA12 Digital Input Module

Siemens 6ES5432-4UA12 is a SIMATIC S5 digital input module (DI 432) that provides 32 isolated 24 VDC inputs in a compact, floating (ungrounded) design with group signals. This 432-series module is designed to read discrete input signals from field devices in legacy Siemens S5 automation systems. It is intended for use with S5 controllers and can be mounted in an S5-115U using the adapter housing 6ES5491-0LB11, enabling integration into older cabinet configurations. The 32 DI channels operate at 24 VDC, with isolation between inputs to support reliable signal handling in compact installations. The 'U' designation denotes floating inputs, and the module's group-signal configuration simplifies cabling and diagnostics when wiring multiple inputs in a single block.