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6ES7431-1KF00-0AB0

6ES7431-1KF00-0AB0 | Siemens S7-400 SM 431 Analog Input

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  • Manufacturer: Siemens

  • Product No.: 6ES7431-1KF00-0AB0

  • Product Type: Analog Input Module

  • Product Origin: DE

  • Payment:T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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6ES7431-1KF00-0AB0 Siemens SIMATIC S7-400 SM 431 Isolated Analog Input Module – 8 AI

The Siemens 6ES7431-1KF00-0AB0 is an isolated analog input module from the SIMATIC S7-400 series. Provides 8 isolated analog input channels with 13-bit resolution and resistance measurement capability. Weight is approximately 500 g.

Product Information

Manufacturer Siemens
Part Number 6ES7431-1KF00-0AB0
Product Type Analog Input Module SM 431
Series SIMATIC S7-400
Number of Analog Inputs 8 (4 for Resistance Measurement)
Resolution 13 Bit Including Sign
Isolation Isolated (Internal/External)
Dimensions (W x H x D) 25 x 290 x 210 mm
Weight Approx. 500 g

Input Ranges and Resistance

Voltage Range 1-5V Input Resistance 200 kΩ
Voltage Range -1 to +1V Input Resistance 200 kΩ
Voltage Range -10 to +10V Input Resistance 200 kΩ
Current Range -20 to +20 mA Input Resistance 80 Ω
Current Range 4-20 mA Input Resistance 80 Ω
Resistance Range 0-600 Ω Usable Up to 500 Ω

Supply and Conversion Specifications

Load Voltage L+ Not Necessary
Input Current from Backplane (5V DC) 350 mA Max
Power Loss (Typical) 1.8 W
Basic Conversion Time 23 / 25 ms
Integration Time 16.7 / 20 ms
Interference Frequency Suppression 50 / 60 Hz
Module Basic Execution Time 200 ms (184/200 ms)

Accuracy Specifications

Temperature Error ±0.02%/K (Impedance), ±0.007% (Other Ranges)
Operational Error (Voltage) ±1% (±1.0% at ±1V, ±0.6% at ±10V, ±0.7% at 1-5V)
Operational Error (Current) ±1%
Operational Error (Resistance) ±1.25% (0-500 Ω, 4-Conductor)
Basic Error at 25°C (Voltage) ±0.7% (0.7% at ±1V, 0.4% at ±10V, 0.5% at 1-5V)
Basic Error at 25°C (Current) ±0.7%
Basic Error at 25°C (Resistance) ±0.8% (0-500 Ω, 4-Conductor)

Protection and Isolation

Input Voltage Destruction Limit 50V
Input Current Destruction Limit 50 mA (40 mA Continuous)
Constant Measurement Current 1.67 mA Typical (Resistance Transmitter)
Potential Separation Analog Inputs (Internal/External), Channels to Backplane Bus
Isolation (Bus to Analog) 2120V DC
Isolation (Bus to Ground) 500V DC
Isolation (Analog to Ground) 2120V DC
Cable Length (Shielded) 200 m Max

Features

  • 8 isolated analog input channels
  • 13-bit resolution including sign
  • Voltage ranges: 1-5V, ±1V, ±10V
  • Current ranges: ±20 mA, 4-20 mA
  • Resistance measurement: 0-600 Ω (usable up to 500 Ω)
  • Fast 23 ms basic conversion time
  • 2-wire, 3-wire, and 4-wire resistance measurement support
  • Compact 25 mm width design

Applications

  • SIMATIC S7-400 control systems
  • Industrial automation
  • Process control
  • Resistance and temperature monitoring
  • Analog signal acquisition

FAQs

Q1: How many analog inputs does the 6ES7431-1KF00-0AB0 provide?
A1: 8 isolated analog input channels with 13-bit resolution, including 4 channels for resistance measurement.

Q2: What input ranges are supported?
A2: Voltage 1-5V, ±1V, ±10V; current ±20 mA, 4-20 mA; resistance 0-600 Ω (usable up to 500 Ω).

Q3: What is the weight and conversion time?
A3: Approximately 500 g with basic conversion time of 23/25 ms.

Product Resources

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🏷️ Tags: Analog Input Module Siemens
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