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6ES7431-7KF10-0AB0

6ES7431-7KF10-0AB0 | Siemens SM 431 Analog Input Module

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  • Manufacturer: Siemens

  • Product No.: 6ES7431-7KF10-0AB0

  • Product Type: Analog Input Module

  • Product Origin: DE

  • Payment:T/T, Western Union

  • Weight: 650g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Siemens 6ES7431-7KF10-0AB0 SIMATIC S7-400 Analog Input Module

Product Overview

Siemens 6ES7431-7KF10-0AB0 is a SIMATIC S7-400 analog input module SM 431 with 8 resistance measurement inputs. Features 16 bit resolution with 20 ms conversion time. Supports Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni1000 resistance thermometers. Isolated with diagnostics and alarm functions. Parameterizable characteristic linearization with Europe/U.S. characteristics selectable.

Technical Specifications

Parameter Value
Brand Siemens
Model 6ES7431-7KF10-0AB0
Series SIMATIC S7-400
Type Analog Input SM 431
Analog Inputs 8 for resistance measurement
Resolution 16 bit
Conversion Time 20 ms at 50 Hz
Backplane Current 650 mA max at 5V DC
Power Loss 3.3 W typical
RTD Types Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000
Input Resistance > 10,000 Ohm
Measurement Current 1 mA typical
Integration Time 20 ms at 50 Hz
Interference Suppression None / 60 / 50 Hz
Shielded Cable Length 200m max
Diagnostics Parameterizable
Alarms Diagnostic, limit value, hardware interrupt
Isolation 500V DC tested
Dimensions W x H x D 25 x 290 x 210 mm
Weight 650 g

Installation

Install module in SIMATIC S7-400 rack. Connect RTD sensors to front connector using 3 wire or 4 wire connection. Use shielded cable maximum 200m. Configure RTD type and characteristic curve (Europe/U.S.) per application. Verify potential separation between channels and backplane bus. Set diagnostics and alarm parameters as required.

Features

8 resistance measurement inputs with 16 bit resolution. Supports Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni1000 RTDs. Parameterizable characteristic linearization with Europe/U.S. characteristics. 3 wire and 4 wire connection supported. Measurement current 1 mA typical. Diagnostic alarm and limit value alarm functions. Hardware interrupt capability. Compact 25mm width design.

FAQ

Q1: What RTD types are supported?
A1: Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni1000. Different characteristics (Europe/U.S.) selectable for Ni1000. Input resistance >10,000 Ohm.

Q2: What is the accuracy?
A2: Operational error limit ±1°C across full temperature range. Basic error limit ±0.2°C at 25°C. Resolution 16 bit.

Q3: What connection types are supported?
A3: 3 wire and 4 wire resistance measurement connections. Use shielded cable maximum 200m for reliable RTD signal transmission.

Product Resources

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🏷️ Tags: Analog Input Module Siemens
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