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6ES7431-7KF00-0AB0

6ES7431-7KF00-0AB0 Siemens SM 431 Analog Input Thermocouple

In stock (21 units), ready to be shipped

  • Manufacturer: Siemens

  • Product No.: 6ES7431-7KF00-0AB0

  • 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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Description

Siemens 6ES7431-7KF00-0AB0 SIMATIC S7-400 Analog Input Module

Product Overview

Siemens 6ES7431-7KF00-0AB0 is a SIMATIC S7-400 analog input module SM 431 with 8 analog inputs. Features 16 bit resolution with 20 ms conversion time. Supports voltage, current, and thermocouple input ranges. Isolated with single rooting, diagnostics, and alarm functions. Parameterizable temperature compensation with internal or external cold junction.

Technical Specifications

Parameter Value
Brand Siemens
Model 6ES7431-7KF00-0AB0
Series SIMATIC S7-400
Type Analog Input SM 431
Analog Inputs 8
Resolution 16 bit
Conversion Time 20 ms
Backplane Current 1200 mA max at 5V DC
Power Loss 4.6 W typical
Voltage Ranges ±20mV to ±10V, 1 to 5V
Current Ranges ±3.2mA to ±20mA, 0 to 20mA, 4 to 20mA
Thermocouple Types B, E, J, K, L, N, R, S, T, U
Temperature Compensation Internal, external with Pt100 or socket
Integration Time 2.5 / 16.7 / 20 / 100 ms
Interference Suppression 400 / 60 / 50 / 10 Hz
Shielded Cable Length 200m max
Diagnostics Parameterizable
Alarms Diagnostic, limit value, hardware interrupt
Isolation 1500V 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 analog signals to front connector. Use shielded cable maximum 200m. Connect cold junction compensation for thermocouples. Verify potential separation between channels and backplane bus. Configure diagnostics, alarms, and limit values per application.

Features

8 analog inputs with 16 bit resolution. Supports voltage, current, and thermocouple inputs. Internal temperature compensation or external with Pt100/socket. Parameterizable characteristic linearization for thermocouples. Integration time parameterizable with 400/60/50/10 Hz interference suppression. Channel to channel isolation. Diagnostic alarm and limit value alarm functions. Hardware interrupt capability.

FAQ

Q1: What input types are supported?
A1: Voltage (±20mV to ±10V, 1 to 5V), current (±3.2mA to ±20mA, 0 to 20mA, 4 to 20mA), and thermocouple (B, E, J, K, L, N, R, S, T, U). No RTD or resistance support.

Q2: How does temperature compensation work?
A2: Internal temperature compensation standard. External compensation available with Pt100 or compensation socket 6ES7431-7KF00-6AA0. Dynamic reference temperature value supported.

Q3: What diagnostics are available?
A3: Parameterizable diagnostics function with diagnostic alarm, limit value alarm, and hardware interrupt. Diagnostic information readable via PLC.

Product Resources

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🏷️ Tags: Analog Input Module Siemens

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