Siemens 6ES7431-1KF10-0AB0 SM 431 PLC I/O Module - 8 AI 14-Bit TC/RTD

Siemens 6ES7431-1KF10-0AB0 SIMATIC S7-400 SM 431 8AI 14-Bit U/I/R/TC/RTD PLC I/O Module

Name: Siemens 6ES7431-1KF10-0AB0 SIMATIC S7-400 SM 431 8AI 14-Bit U/I/R/TC/RTD PLC I/O Module
Brand: Siemens
SKU: 6ES7431-1KF10-0AB0
Price: 1757.21 USD
Availability: OutOfStock
Rating: 5.0 (10 reviews)

Brand: Siemens

Reference No: 6ES7431-1KF10-0AB0

Catalog No: 6ES7431-1KF10-0AB0

Series: SIMATIC S7-400

Tariff Code (HS): 85389091

Stock: 0

Delivery time: 10-15 business day(s)

Shipping Origin: Türkiye EXW

$1,757.21

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Description

The Siemens 6ES7431-1KF10-0AB0 SIMATIC S7-400 SM 431 module provides 8 isolated analog inputs at 14-bit resolution, reading voltage, current, resistance, thermocouples (types B, E, J, K, L, N, R, S, T, U) and RTDs (Pt100/200/500/1000/10000, Ni100/1000) on the same channels. Parameterizable temperature compensation supports an external Pt100 sensor or a compensation socket.

Technical Specifications

Load voltage L+ – Rated value (DC)	24 V; Only required for supplying 2-wire transmitters
Load voltage L+ – Reverse polarity protection	Yes
Input current – from load voltage L+ (without load), max.	200 mA; for 8 connected, fully controlled 2-wire transmitters
Input current – from backplane bus 5 V DC, max.	600 mA
Power loss – Power loss, typ.	3.5 W
Analog inputs – Number of analog inputs	8
Analog inputs – For voltage/current measurement	8
Analog inputs – For resistance measurement	4
Analog inputs – permissible input voltage for voltage input (destruction limit), max.	18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20)
Analog inputs – permissible input current for current input (destruction limit), max.	40 mA; Permanent
Analog inputs – Constant measurement current for resistance-type transmitter, typ.	1.67 mA
Input ranges – Voltage	Yes
Input ranges – Current	Yes
Input ranges – Thermocouple	Yes
Input ranges – Resistance thermometer	Yes
Input ranges – Resistance	Yes
Input ranges (rated values), voltages – 1 V to 5 V	Yes
Input ranges (rated values), voltages – Input resistance (1 V to 5 V)	1 MΩ
Input ranges (rated values), voltages – -1 V to +1 V	Yes
Input ranges (rated values), voltages – Input resistance (-1 V to +1 V)	1 MΩ
Input ranges (rated values), voltages – -10 V to +10 V	Yes
Input ranges (rated values), voltages – Input resistance (-10 V to +10 V)	1 MΩ
Input ranges (rated values), voltages – -2.5 V to +2.5 V	Yes
Input ranges (rated values), voltages – Input resistance (-2.5 V to +2.5 V)	1 MΩ
Input ranges (rated values), voltages – -250 mV to +250 mV	Yes
Input ranges (rated values), voltages – Input resistance (-250 mV to +250 mV)	1 MΩ
Input ranges (rated values), voltages – -5 V to +5 V	Yes
Input ranges (rated values), voltages – Input resistance (-5 V to +5 V)	1 MΩ
Input ranges (rated values), voltages – -500 mV to +500 mV	Yes
Input ranges (rated values), voltages – Input resistance (-500 mV to +500 mV)	1 MΩ
Input ranges (rated values), voltages – -80 mV to +80 mV	Yes
Input ranges (rated values), voltages – Input resistance (-80 mV to +80 mV)	1 MΩ
Input ranges (rated values), currents – 0 to 20 mA	Yes
Input ranges (rated values), currents – Input resistance (0 to 20 mA)	50 Ω
Input ranges (rated values), currents – 4 mA to 20 mA	Yes
Input ranges (rated values), currents – Input resistance (4 mA to 20 mA)	50 Ω
Input ranges (rated values), thermocouples – type B	Yes
Input ranges (rated values), thermocouples – Input resistance (Type B)	1 MΩ
Input ranges (rated values), thermocouples – Type E	Yes
Input ranges (rated values), thermocouples – Input resistance (Type E)	1 MΩ
Input ranges (rated values), thermocouples – Type J	Yes
Input ranges (rated values), thermocouples – Input resistance (type J)	1 MΩ
Input ranges (rated values), thermocouples – Type K	Yes
Input ranges (rated values), thermocouples – Input resistance (Type K)	1 MΩ
Input ranges (rated values), thermocouples – Type L	Yes
Input ranges (rated values), thermocouples – Input resistance (Type L)	1 MΩ
Input ranges (rated values), thermocouples – Type N	Yes
Input ranges (rated values), thermocouples – Input resistance (Type N)	1 MΩ
Input ranges (rated values), thermocouples – Type R	Yes
Input ranges (rated values), thermocouples – Input resistance (Type R)	1 MΩ
Input ranges (rated values), thermocouples – Type S	Yes
Input ranges (rated values), thermocouples – Input resistance (Type S)	1 MΩ
Input ranges (rated values), thermocouples – Type T	Yes
Input ranges (rated values), thermocouples – Input resistance (Type T)	1 MΩ
Input ranges (rated values), thermocouples – Type U	Yes
Input ranges (rated values), thermocouples – Input resistance (Type U)	1 MΩ
Input ranges (rated values), resistance thermometer – Ni 100	Yes
Input ranges (rated values), resistance thermometer – Input resistance (Ni 100)	1 MΩ
Input ranges (rated values), resistance thermometer – Ni 1000	Yes
Input ranges (rated values), resistance thermometer – Input resistance (Ni 1000)	1 MΩ
Input ranges (rated values), resistance thermometer – Pt 100	Yes
Input ranges (rated values), resistance thermometer – Input resistance (Pt 100)	1 MΩ
Input ranges (rated values), resistance thermometer – Pt 1000	Yes
Input ranges (rated values), resistance thermometer – Pt 10000	Yes
Input ranges (rated values), resistance thermometer – Pt 200	Yes
Input ranges (rated values), resistance thermometer – Input resistance (Pt 200)	1 MΩ
Input ranges (rated values), resistance thermometer – Pt 500	Yes
Input ranges (rated values), resistance thermometer – Input resistance (Pt 500)	1 MΩ
Input ranges (rated values), resistors – 0 to 48 ohms	Yes
Input ranges (rated values), resistors – Input resistance (0 to 48 ohms)	1 MΩ
Input ranges (rated values), resistors – 0 to 150 ohms	Yes
Input ranges (rated values), resistors – Input resistance (0 to 150 ohms)	1 MΩ
Input ranges (rated values), resistors – 0 to 300 ohms	Yes
Input ranges (rated values), resistors – Input resistance (0 to 300 ohms)	1 MΩ
Input ranges (rated values), resistors – 0 to 600 ohms	Yes
Input ranges (rated values), resistors – Input resistance (0 to 600 ohms)	1 MΩ
Input ranges (rated values), resistors – 0 to 6000 ohms	Yes; Usable up to 5000 Ohm
Input ranges (rated values), resistors – Input resistance (0 to 6000 ohms)	1 MΩ
Temperature compensation – Parameterizable	Yes
Temperature compensation – external temperature compensation with Pt100	Yes
Temperature compensation – external temperature compensation with compensations socket	Yes
Temperature compensation – dynamic reference temperature value	Yes
Characteristic linearization – Parameterizable	Yes
Characteristic linearization – for thermocouples	Type B, E, J, K, L, N, R, S, T, U
Characteristic linearization – for resistance thermometer	Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000
Cable length – shielded, max.	200 m; 50 m with thermocouples and input ranges ≤ 80 mV
Integration and conversion time/resolution per channel – Resolution with overrange (bit including sign), max.	14 bit; with activated filtering: 16 bit
Integration and conversion time/resolution per channel – Integration time, parameterizable	Yes
Integration and conversion time/resolution per channel – Basic conversion time (ms)	20.1 / 23.5 ms
Integration and conversion time/resolution per channel – Integration time (ms)	16,7 / 20 ms
Integration and conversion time/resolution per channel – Interference voltage suppression for interference frequency f1 in Hz	50 / 60 Hz
Integration and conversion time/resolution per channel – Basic execution time of the module (all channels released)	161 ms; 161 / 188 ms
Connection of signal encoders – for voltage measurement	Yes; possible
Connection of signal encoders – for current measurement as 2-wire transducer	Yes
Connection of signal encoders – for current measurement as 4-wire transducer	Yes
Connection of signal encoders – for resistance measurement with two-wire connection	Yes; Line resistances are also measured
Connection of signal encoders – for resistance measurement with three-wire connection	Yes
Connection of signal encoders – for resistance measurement with four-wire connection	Yes
Errors/accuracies – Temperature error (relative to input range), (+/-)	0.004 %/K
Operational error limit in overall temperature range – Voltage, relative to input range, (+/-)	0.38 %; ±0.38 % at ±80 mV; ±0.35 % at ±250 mV, ±500 mV, ±1 V, ±2,5 V, ±5 V, 1 to 5 V, ±10 V
Operational error limit in overall temperature range – Current, relative to input range, (+/-)	0.35 %; ±20 mA, 0 to 20 mA, 4 to 20 mA
Operational error limit in overall temperature range – Resistance, relative to input range, (+/-)	0.5 %
Operational error limit in overall temperature range – Resistance thermometer, relative to input range, (+/-)	0.5 %
Operational error limit in overall temperature range – Thermocouple, relative to input range, (+/-)	TC Type B (±14.8 K), TC Type R (±9.4 K), TC Type S (±10.6 K), TC Type T (±2.2 K), TC Type E (±4.0 K), TC Type J (±5.2 K), TC Type K (±7.6 K), TC Type U (±3.5 K), TC Type L (±5.1 K), TC Type N (±5.5 K)
Basic error limit (operational limit at 25 °C) – Voltage, relative to input range, (+/-)	0.15 %; ±0.15 % (±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, 1 to 5 V, ±10 V); ±0.17% (±80 mV)
Basic error limit (operational limit at 25 °C) – Current, relative to input range, (+/-)	0.15 %; ±20 mA, 0 to 20 mA, 4 to 20 mA
Basic error limit (operational limit at 25 °C) – Resistance, relative to input range, (+/-)	0.15 %; ±0.15 % at 0 to 48 ohms (4-conductor measurement), 0 to 150 ohms (4-conductor measurement), 0 to 300 ohms (4-conductor measurement), 0 to 600 ohms (4-conductor measurement), 0 to 5000 ohms (4-conductor measurement, in range of 6000 ohms); ±0.3 % at 0 to 300 ohms (3-conductor measurement), 0 to 600 ohms (3-conductor measurement), 0 to 5000 ohms (3-conductor measurement, in range of 6000 ohms)
Basic error limit (operational limit at 25 °C) – Resistance thermometer, relative to input range, (+/-)	0.3 %
Basic error limit (operational limit at 25 °C) – Thermocouple, relative to input range, (+/-)	TC Type B (±8.2 K), TC Type R (±5.2 K), TC Type S (±5.9 K), TC Type T (±1.2 K), TC Type E (±1.8 K), TC Type J (±2.3 K), TC Type K (±3.4 K), TC Type U (±1.8 K), TC Type L (±2.3 K), TC Type N (±2.9 K)
Potential separation analog inputs	Yes; internal/external
Potential separation analog inputs – between the channels and backplane bus	Yes
Potential separation analog inputs – Between the channels and load voltage L+	Yes
Isolation – Isolation tested with	2 120 V DC between bus and L+/M; 2 120 V DC between bus and analog section; 500 V DC between bus and local ground; 500 V DC between analog section and L+/M; 2 120 V DC between analog section and local ground; 2 120 V DC between L+/M and local ground
Dimensions – Width	25 mm
Dimensions – Height	290 mm
Dimensions – Depth	210 mm
Weights – Weight, approx.	500 g
Classifications – Version	Classification
Classifications – eClass	16
Classifications – eClass (2)	14

Selection Notes

This module measures voltage, current, resistance, thermocouples (types B, E, J, K, L, N, R, S, T, U) and RTDs (Pt100/200/500/1000/10000, Ni100/1000) on the same 8 channels – pick it when a panel needs mixed temperature and process signals without dedicating separate modules to each sensor type. Parameterizable temperature compensation supports an external Pt100 reference, a compensation socket, or a dynamic reference value for thermocouple cold-junction correction. Resolution is 14 bit standard, extending to 16 bit with filtering enabled, and basic conversion time is 20.1/23.5 ms per channel. Keep cable runs to 50 m (rather than the standard 200 m) when using thermocouples or the ±80 mV range, since low-level signals are more susceptible to noise pickup over longer runs.

Technical Details

Short Description

Siemens SM 431 SIMATIC S7-400 multi-sensor analog input module, 8 x isolated inputs, 14-bit, TC/RTD capable.

Catalog No

6ES7431-1KF10-0AB0

Delivery Date (Days)

10-15 days

Model Number

6ES7431-1KF10-0AB0

Tariff Code

85389091

Siemens 6ES7431-1KF10-0AB0 SIMATIC S7-400 SM 431 8AI 14-Bit U/I/R/TC/RTD PLC I/O Module

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