Siemens 6ES5430-4UA13 Digital Output Interface Module

Siemens 6ES5430-4UA13 is a SIMATIC S5 430 digital input module that provides 32 24 V DC digital inputs in a floating, compact “U” version, designed for S5-135U/155U/H PLCs. It accepts standard 24 V DC sensor signals and is intended for monitoring discrete inputs from switches, sensors, and other devices in legacy Siemens automation systems. The listing notes that it is supplied In Package under this catalog number, making it a straightforward replacement part for existing S5 DI configurations. Typical applications include machine-level sensing and panel installations where reliable digital input monitoring is required in older S5-based controls.