The Siemens 6ES5430-4UA13 is a digital input module designed for the SIMATIC S5-135U and S5-155U programmable logic controller systems. This module provides 32 isolated (floating) input channels, operating at a nominal voltage of 24 VDC. As a compact version (U-type) module, it is engineered for high-density signal processing in legacy industrial automation environments.
Features
32 digital input channels for high-density signal acquisition.
Floating (isolated) input configuration for improved noise immunity and ground loop prevention.
Designed for 24 VDC signal levels.
Compatible with SIMATIC S5-135U and S5-155U rack systems.
Compact module design for space-efficient cabinet installation.
Ordering Information
Please note that the 6ES5430-4UA13 has been discontinued by the manufacturer since October 1, 2005. The designated successor model is 6ES5430-4UA14. Ensure compatibility with your existing S5 rack configuration before installation.
Technical Specifications
Model
6ES5430-4UA13
Manufacturer
Siemens
Product Type
Digital Input Module
Number of Inputs
32
Input Voltage
24 VDC
Isolation
Floating
System Compatibility
SIMATIC S5-135U / 155U
Installation Guidelines
Ensure the PLC rack power is completely disconnected before inserting or removing the module to prevent electrical damage or bus errors.
Handle the module using ESD-safe practices to protect internal circuitry from electrostatic discharge.
Verify that the backplane connector is properly aligned and seated before securing the module into the rack.
Route signal wiring away from high-voltage AC lines or high-EMI sources to minimize signal interference.
Ensure proper ventilation within the control cabinet to maintain operating temperatures within the specified range for S5 components.
FAQ
Is this module still in production?
No, the 6ES5430-4UA13 was discontinued by Siemens on October 1, 2005. We provide these units as refurbished or legacy spare parts to support existing installations.
What is the recommended replacement for this part?
Siemens designated the 6ES5430-4UA14 as the direct successor for this module.
Does this module require external power?
The module operates on 24 VDC for the input signals; ensure your power supply is appropriately rated and filtered for industrial PLC use.
