24 V; Only required for supplying 2-wire transmittersSupply voltage / Load voltage L+ / Rated value (DC)
YesSupply voltage / Load voltage L+ / Reverse polarity protection
8Analog inputs / Number of analog inputs
Application and selection
Compare the complete order number and specifications below with the original part and machine wiring. Check the design, interfaces, supply voltage or connection method as applicable to this product.
Technical specifications
Manufacturer
Siemens
Order number
6ES7431-1KF10-0AB0
Supply voltage / Load voltage L+ / Rated value (DC)
24 V; Only required for supplying 2-wire transmitters
Supply voltage / 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),
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),
40 mA; Permanent
Analog inputs / Constant measurement current for resistance-type transmitter,
1.67 mA
Analog inputs / Input ranges / Voltage
Yes
Analog inputs / Input ranges / Current
Yes
Analog inputs / Input ranges / Thermocouple
Yes
Analog inputs / Input ranges / Resistance thermometer
Yes
Analog inputs / Input ranges / Resistance
Yes
Analog inputs / Input ranges (rated values), voltages / 1 V to 5 V
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (1 V to 5 V)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -1 V to +1 V
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-1 V to +1 V)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -10 V to +10 V
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-10 V to +10 V)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -2.5 V to +2.5 V
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-2.5 V to +2.5 V)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -250 mV to +250 mV
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-250 mV to +250 mV)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -5 V to +5 V
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-5 V to +5 V)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -500 mV to +500 mV
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-500 mV to +500 mV)
1 MΩ
Analog inputs / Input ranges (rated values), voltages / -80 mV to +80 mV
Yes
Analog inputs / Input ranges (rated values), voltages / Input resistance (-80 mV to +80 mV)
1 MΩ
Analog inputs / Input ranges (rated values), currents / 0 to 20 mA
Yes
Analog inputs / Input ranges (rated values), currents / Input resistance (0 to 20 mA)
50 Ω
Analog inputs / Input ranges (rated values), currents / 4 mA to 20 mA
Yes
Analog inputs / Input ranges (rated values), currents / Input resistance (4 mA to 20 mA)
50 Ω
Analog inputs / Input ranges (rated values), thermocouples / Type B
Yes
Analog inputs / Input ranges (rated values), thermocouples / Input resistance (Type B)
1 MΩ
Analog inputs / Input ranges (rated values), thermocouples / Type E
200 m; 50 m with thermocouples and input ranges ≤ 80 mV
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Resolution with overrange (bit including sign), max.
14 bit; with activated filtering: 16 bit
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Integration time, parameterizable
Yes
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Basic conversion time (ms)
20.1 / 23.5 ms
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Integration time (ms)
16,7 / 20 ms
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Interference voltage suppression for interference
50 / 60 Hz
Analog value generation for the inputs / Integration and conversion time/resolution per channel / Basic execution time of the module (all channels
161 ms; 161 / 188 ms
Encoder / Connection of signal encoders / for voltage measurement
Yes; possible
Encoder / Connection of signal encoders / for current measurement as 2-wire transducer
Yes
Encoder / Connection of signal encoders / for current measurement as 4-wire transducer
Yes
Encoder / Connection of signal encoders / for resistance measurement with two-wire connection
Yes; Line resistances are also measured
Encoder / Connection of signal encoders / for resistance measurement with three-wire connection
Yes
Encoder / Connection of signal encoders / for resistance measurement with four-wire connection
Yes
Errors/accuracies / Temperature error (relative to input range), (+/-)
0.004 %/K
Errors/accuracies / 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
Errors/accuracies / Operational error limit in overall temperature range / Current, relative to input range, (+/-)
0.35 %; ±20 mA, 0 to 20 mA, 4 to 20 mA
Errors/accuracies / Operational error limit in overall temperature range / Resistance, relative to input range, (+/-)
0.5 %
Errors/accuracies / Operational error limit in overall temperature range / Resistance thermometer, relative to input range, (+/-)
0.5 %
Errors/accuracies / 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)
Errors/accuracies / Basic error limit (operational limit at 25 °C) / Voltage, relative to input range, (+/-)
Errors/accuracies / 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
Errors/accuracies / 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)
Errors/accuracies / Basic error limit (operational limit at 25 °C) / Resistance thermometer, relative to input range, (+/-)
0.3 %
Errors/accuracies / 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)
Interrupts/diagnostics/status information / Diagnostics function
No
Potential separation / Potential separation analog inputs / Potential separation analog inputs
Yes; internal/external
Potential separation / Potential separation analog inputs / between the channels
No
Potential separation / Potential separation analog inputs / between the channels and backplane bus
Yes
Potential separation / 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
Supported signals and ranges
Supply voltage / Load voltage L+ / Rated value (DC): 24 V; Only required for supplying 2-wire transmitters
Supply voltage / 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
Analog inputs / For voltage/current measurement: 8
Analog inputs / For resistance measurement: 4
Analog inputs / permissible input voltage for voltage input (destruction limit),: 18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20)
Analog inputs / Constant measurement current for resistance-type transmitter,: 1.67 mA
Analog inputs / Input ranges / Voltage: Yes
Scope of supply
We will confirm the exact version, package contents and related accessories before ordering. Package information in the technical table applies to the stated order number.
Frequently asked questions
Is the same product family enough to identify a replacement?
The complete order number is essential. If the type changes, compare the electrical and mechanical design, connections and requirements of the original application.
What information is needed to check connections and accessories?
Send a nameplate photo, the designations of related modules and connectors and, where needed, a wiring diagram. We will check the specific version for your application.
Can you assess a faulty part?
Yes. Send the complete order number and a description of the fault. We will check the diagnostic and professional repair options for your specific unit.
Why buy from FOXON
1
Replacement part availability
We will check current part availability and confirm the possible delivery date before you order.
2
New original and refurbished parts
We will specify the available version and condition of the particular unit in the quotation.
3
Parts with a warranty
We will confirm the warranty period according to the part condition and specific quotation.
4
Diagnostics and repairs
For a faulty unit, we will check the options for diagnostics and professional repair.
More than 3,500customers
We deliver tomore than 100 countries
Express delivery?We will check. Contact us now.
Part conditions available for sale
Part conditions and warranty
New, sealed (NC): Brand-new, unused part in unopened original packaging. 12-month warranty.
New, opened (NO): Brand-new and unused part, but the original packaging has been opened. 12-month warranty.
New, without packaging (NW): Brand-new and unused part, supplied without original packaging. 12-month warranty.
New (N): New and unused part, typically smaller components supplied in multi-packs in one original package. 12-month warranty.
Refurbished (R): Part has been removed from service, cleaned, inspected and tested to meet original functionality and quality. 12-month warranty.
Used, tested (T): Functional used part that has passed full testing. 6-month warranty.
Used (U): Functional used part. 3-month warranty.
Sales, repairs and buyback of automation parts
We supply replacement parts for industrial automation and assess faulty units for diagnostics and repair. We also buy surplus parts. Send the exact designation and required quantity.
