Siemens AG 6ES5430-4UA13 Digital Input Module

Siemens 6ES5430-4UA13 is a 32‑channel digital input module built for the SIMATIC S5 430 family that converts 24 V DC signals from field devices—such as sensors and switches—into discrete inputs that the S5 CPU can interpret and respond to in automation tasks. It uses floating inputs and is the Compact Version U, delivering 32 dedicated 24 V DC digital input channels in a compact package designed for integration with the S5 signal interface. This module is intended for use with S5‑135U and S5‑155U PLCs (and S5‑H variants) and can also be installed in an S5‑115U system when used with adaptor casing 6ES5491‑0LB11, broadening its compatibility with older Siemens platforms. With 32 DI inputs, the 6ES5430‑4UA13 supports bulk wiring for industrial controllers, enabling straightforward connection of devices like limit switches and pushbuttons across machinery and conveyors while preserving a compact and scalable I/O topology.