Siemens 6ES5434-4UA11 Digital Input Module

 

The Siemens 6ES5434-4UA11 is a high‑density digital input module engineered for use within the SIEMATIC S5 programmable logic controller (PLC) architecture, specifically tailored for S5‑135U and S5‑155U rack systems. This compact digital input card is designed to provide 32 floating digital input channels that reliably read discrete on/off signals from sensors and field devices within industrial automation applications.It has a processing speed of 24 MHz and a memory capacity of 64 KB of RAM and 512 KB of flash memory. The module supports a maximum of 2048 I/O points and has a power consumption of 12 watts.The 6ES5434-4UA11 supports both 5 V and 15 V DC logic levels and accommodates TTL/CMOS/NAMUR type sources configured as sinking inputs, making it versatile for various sensor interfaces. Its robust Siemens engineering ensures dependable signal acquisition and consistent performance even under demanding production environments.

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Model: 6ES5434-4UA11
Product Family: SIMATIC S5 series (S5‑135U / S5‑155U)
Total Digital Inputs: 32 discrete inputs
Input Voltage: Supports 5 V DC and 15 V DC logic levels
Input Type: Floating, sinking inputs (compatible with TTL/CMOS/NAMUR sensors)
Current per Channel: 0.5 A
Operating Temperature Range: -25°C to +60°C
Storage Temperature Range: -40°C to +85°C
Connection Type: Non-isolated
Compliance Standards: ["IEC 61131-2″,"EN 50178"]
Mounting: Standard PLC rack installation for SIMATIC S5 backplane

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• High‑Channel Count Input Capability: Provides 32 independent digital inputs in a single module to maximize I/O density for S5 PLC systems without expanding the rack footprint.
  
• Floating Input Architecture: Floating design isolates input channels, improving noise immunity and ensuring signal integrity in electrically noisy industrial environments.
• Multi‑Voltage Logic Compatibility: Accepts 5 V and 15 V DC logic levels, enabling direct interfacing with a wide range of field sensors, including TTL and CMOS devices.
• Robust Industrial Design: Engineered for long‑term operation in manufacturing and process automation systems, the 6ES5434-4UA11 is durable and suitable for continuous duty cycles.
• Sinking Input Configuration: Designed for sinking digital input architecture, allowing flexible routing of input reference potentials and compatibility with common industrial sensor types.

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