Siemens 6ES5430-4UA13 4 Channel Analog Input Module

Siemens 6ES5430-4UA13 is a SIMATIC S5-430 digital input module with 32 floating inputs at 24 V DC. This compact version U module mounts in the S5-430 I/O backplane to monitor 24 V DC signals from sensors and switches. Each of the 32 channels accepts standard 24 V DC digital inputs, enabling reliable binary input capture for automation tasks. Typical applications include machine start/stop signals, pushbutton and limit-switch monitoring, and safety interlocks in legacy S5-based control systems. As a 32-channel digital input module, it expands the I/O capacity of the S5-430 family without adding a new controller, integrating with Siemens' SIMATIC S5 hardware ecosystem. The 6ES5430-4UA13 designation identifies the 32-channel digital input option in the floating, compact U-series, offering a space-efficient interface for field devices in older automation installations.