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6ES7431-1KF10-0AB0

6ES7431-1KF10-0AB0 Siemens SM 431 8 AI 14 Bit Isolated

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  • Manufacturer: Siemens

  • Product No.: 6ES7431-1KF10-0AB0

  • 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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Siemens 6ES7431-1KF10-0AB0 SIMATIC S7-400 Analog Input Module

Product Overview

Siemens 6ES7431-1KF10-0AB0 is a SIMATIC S7-400 analog input module SM 431 with 8 isolated analog inputs. Features 14 bit resolution (16 bit with activated filtering). Supports voltage, current, resistor, thermocouple, and Pt100/Pt1000/Ni100/Ni1000 input ranges. Isolated between channels and backplane bus for reliable signal acquisition.

Technical Specifications

Parameter Value
Brand Siemens
Model 6ES7431-1KF10-0AB0
Series SIMATIC S7-400
Type Analog Input SM 431
Analog Inputs 8 isolated (4 for resistance)
Resolution 14 bit (16 bit with filtering)
Load Voltage 24V DC
Input Current from L+ 200 mA max
Backplane Current 600 mA max at 5V DC
Power Loss 3.5 W typical
Voltage Ranges ±80mV to ±10V, 1 to 5V
Current Ranges 0 to 20mA, 4 to 20mA
Thermocouple Types B, E, J, K, L, N, R, S, T, U
RTD Types Pt100, Pt200, Pt500, Pt1000, Pt10000, Ni100, Ni1000
Resistor Ranges 0 to 48, 150, 300, 600, 6000 Ohm
Conversion Time 20.1 / 23.5 ms basic
Module Execution Time 161 / 188 ms (all channels)
Shielded Cable Length 200m max (50m for TC and ≤80mV)
Isolation 2120V DC bus to L+/M and analog section
Dimensions W x H x D 25 x 290 x 210 mm
Weight 500 g

Installation

Install module in SIMATIC S7-400 rack. Connect 24V DC load voltage for 2 wire transmitters. Wire analog signals to front connector. Use shielded cable maximum 200m (50m for thermocouples and ≤80mV ranges). Verify potential separation between channels and backplane bus. Configure input range and filtering per application.

Features

8 isolated analog inputs with 14 bit resolution. Supports voltage, current, thermocouple, RTD, and resistor inputs. Parameterizable temperature compensation with external Pt100. Characteristic linearization for thermocouples and RTDs. Integration time parameterizable for 50/60Hz interference suppression. Potential separation between channels and backplane bus. Compact 25mm width design.

FAQ

Q1: How many analog inputs does this module have?
A1: 8 analog inputs for voltage/current measurement, 4 for resistance measurement. Resolution 14 bit (16 bit with filtering activated).

Q2: What input types are supported?
A2: Voltage (±80mV to ±10V, 1 to 5V), current (0 to 20mA, 4 to 20mA), thermocouple (B, E, J, K, L, N, R, S, T, U), RTD (Pt100, Pt1000, Ni100, Ni1000), and resistors (0 to 48, 150, 300, 600, 6000 Ohm).

Q3: What is the maximum cable length?
A3: 200m for shielded cable. 50m for thermocouples and input ranges ≤80mV. Use shielded cable for all analog signal wiring.

Product Resources

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🏷️ Tags: Analog Input Module Siemens
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