Siemens 6ES53143UA11

Product Series: SIMATIC S5 (Legacy / Obsolete)

Product Introduction:
The Siemens 6ES5 314-3UA11 is a 16-channel digital input module for the SIMATIC S5 PLC system. It accepts 24 VDC sinking/sourcing signals and is used for discrete signal acquisition in legacy automation installations.

Category:
Description

Technical Specifications:

Parameter Value
Order Number 6ES5 314-3UA11
Model IM 314-3 UA
Channels 16 digital inputs
Input Voltage 24 VDC
Input Type Sinking (PNP) or Sourcing (NPN) — configurable via DIP switches
Input Current 7 mA (typical) per channel
Optical Isolation Yes (channel-to-bus)
Bus Connection C-Bus (S5 backplane)
Power Supply 5 VDC from bus (no external supply needed)
Current Consumption 140 mA (from bus)
Operating Temperature 0°C to +55°C
Dimensions 160 mm × 90 mm × 120 mm
Weight Approx. 0.28 kg
Status Obsolete — Legacy product, limited spare availability

Functional Features:

  • DIP switch configurable for sinking/sourcing per group of 8 channels
  • LED indicators per channel for status monitoring
  • Group diagnosis via CPU for fault detection
  • Compatible with STEP 5 programming software

Key Advantages:

  • Robust design proven in thousands of installations since 1980s
  • Simple wiring: 24 VDC + common return

Applicable Industries: Legacy installations in Steel, Automotive, Cement, Mining

Installation Requirements:

  • Mount on S5 C-Bus rack (UR1 or UR2 chassis)
  • Use 24 VDC regulated power supply (PS 307 compatible)
  • Wire with minimum 0.75 mm² cable

Precautions:

  • This is a legacy/obsolete product — Siemens no longer manufactures it
  • Use STEP 5 or S5-compatible tools for configuration
  • Verify DIP switch settings match field wiring before energizing
  • Consider migration to S7-1200/1500 for long-term support
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