SIMATIC S7-400 – SM 431 Analog Input Modules – Siemens

$ 708.81 – $ 1,858.01

SKU: N/A

Analog input modules can be used to connect the control to analog process signals. They are suitable for the connection of voltage and current sensors, thermocouples, resistors and resistance thermometers.

Siemens Analog Input Modules SIMATIC S7-400 Product Specifications:

Article number 6ES7431-0HH00-0AB0 6ES7431-1KF20-0AB0 6ES7431-1KF00-0AB0 6ES7431-1KF10-0AB0
SIMATIC S7-400, ANALOG INPUT SIMATIC S7-400, SM 431 SIMATIC S7-400, SM 431 SIMATIC S7-400, SM 431
Supply voltage
Load voltage L+
● Rated value (DC) 24 V; Only required for supplying 2-wire transmitters 24 V; Only required for supplying 2-wire transmitters not necessary 24 V; Only required for supplying 2-wire transmitters
● Reverse polarity protection Yes Yes Yes
Input current
from load voltage L+ (without load), max. 400 mA; for 16 connected, fully controlled 2-wire transmitters 200 mA; for 8 connected, fully controlled 2-wire transmitters 200 mA; for 8 connected, fully controlled 2-wire transmitters
from backplane bus 5 V DC, max. 100 mA 1 000 mA 350 mA 600 mA
Power loss
Power loss, typ. 2 W 4.9 W 1.8 W 3.5 W
Analog inputs
Number of analog inputs 16 8 8 8
● For voltage/current measurement 16 8 8 8
● For resistance measurement 4 4 4
permissible input voltage for voltage input (destruction limit), max. 20 V; 20 V DC permanent, 75 V DC for max. 1 s (duty factor 1:20) 18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20) 50 V 18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20)
permissible input current for current input (destruction limit), max. 40 mA 40 mA; Permanent 50 mA; 40 mA continuous 40 mA; Permanent
Constant measurement current for resistance-type transmitter, typ. 1.67 mA 1.67 mA 1.67 mA 1.67 mA
Input ranges
● Voltage Yes Yes Yes Yes
● Current Yes Yes Yes Yes
● Thermocouple No No No Yes
● Resistance thermometer No No No Yes
● Resistance No Yes Yes Yes
Input ranges (rated values), voltages
● 1 V to 5 V Yes Yes Yes Yes
— Input resistance (1 V to 5 V) 100 kΩ 10 MΩ 200 kΩ 1 MΩ
● -1 V to +1 V Yes Yes Yes Yes
— Input resistance (-1 V to +1 V) 10 MΩ 10 MΩ 200 kΩ 1 MΩ
● -10 V to +10 V Yes Yes Yes Yes
— Input resistance (-10 V to +10 V) 100 kΩ 100 kΩ 200 kΩ 1 MΩ
● -2.5 V to +2.5 V Yes
— Input resistance (-2.5 V to +2.5 V) 1 MΩ
● -250 mV to +250 mV Yes
— Input resistance (-250 mV to +250 mV) 1 MΩ
● -5 V to +5 V Yes
— Input resistance (-5 V to +5 V) 1 MΩ
● -500 mV to +500 mV Yes
— Input resistance (-500 mV to +500 mV) 1 MΩ
● -80 mV to +80 mV Yes
— Input resistance (-80 mV to +80 mV) 1 MΩ
Input ranges (rated values), currents
● 0 to 20 mA Yes
— Input resistance (0 to 20 mA) 50 Ω
● -20 mA to +20 mA Yes Yes Yes
— Input resistance (-20 mA to +20 mA) 50 Ω 50 Ω 80 Ω
● 4 mA to 20 mA Yes Yes Yes Yes
— Input resistance (4 mA to 20 mA) 50 Ω 50 kΩ 80 Ω 50 Ω
Input ranges (rated values), thermocouples
● Type B Yes
— Input resistance (Type B) 1 MΩ
● Type E Yes
— Input resistance (Type E) 1 MΩ
● Type J Yes
— Input resistance (type J) 1 MΩ
● Type K Yes
— Input resistance (Type K) 1 MΩ
● Type L Yes
— Input resistance (Type L) 1 MΩ
● Type N Yes
— Input resistance (Type N) 1 MΩ
● Type R Yes
— Input resistance (Type R) 1 MΩ
● Type S Yes
— Input resistance (Type S) 1 MΩ
● Type T Yes
— Input resistance (Type T) 1 MΩ
● Type U Yes
— Input resistance (Type U) 1 MΩ
Input ranges (rated values), resistance thermometer
● Ni 100 Yes
— Input resistance (Ni 100) 1 MΩ
● Ni 1000 Yes
— Input resistance (Ni 1000) 1 MΩ
● Pt 100 Yes
— Input resistance (Pt 100) 1 MΩ
● Pt 1000 Yes
● Pt 10000 Yes
● Pt 200 Yes
— Input resistance (Pt 200) 1 MΩ
● Pt 500 Yes
— Input resistance (Pt 500) 1 MΩ
Input ranges (rated values), resistors
● 0 to 48 ohms Yes
— Input resistance (0 to 48 ohms) 1 MΩ
● 0 to 150 ohms Yes
— Input resistance (0 to 150 ohms) 1 MΩ
● 0 to 300 ohms Yes
— Input resistance (0 to 300 ohms) 1 MΩ
● 0 to 600 ohms Yes Yes Yes
— Input resistance (0 to 600 ohms) usable up to 500 ohms 1 MΩ
● 0 to 6000 ohms Yes; Usable up to 5000 Ohm
— Input resistance (0 to 6000 ohms) 1 MΩ
Thermocouple (TC)
Temperature compensation
— parameterizable Yes
— internal temperature compensation No
— external temperature compensation with Pt100 Yes
— external temperature compensation with compensations socket Yes
— dynamic reference temperature value Yes
Characteristic linearization
● parameterizable Yes
— for thermocouples Type B, E, J, K, L, N, R, S, T, U
— for resistance thermometer Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000
Cable length
● shielded, max. 200 m 200 m 200 m 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. 13 bit 14 bit; 14 / 14 / 14 13 bit 14 bit; with activated filtering: 16 bit
● Integration time, parameterizable Yes Yes Yes Yes
● Basic conversion time (ms) 55 / 65 ms 52 µs 23 / 25 ms 20.1 / 23.5 ms
● Integration time (ms) 50 / 60 ms 16,7 / 20 ms 16,7 / 20 ms
● Interference voltage suppression for interference frequency f1 in Hz 50 / 60 Hz none / 400 / 60 / 50 Hz 50 / 60 Hz 50 / 60 Hz
Encoder
Connection of signal encoders
● for voltage measurement Yes; possible Yes; possible Yes; possible Yes; possible
● for current measurement as 2-wire transducer Yes Yes; with external transmitter supply Yes
● for current measurement as 4-wire transducer Yes Yes Yes Yes
● for resistance measurement with two-wire connection Yes; Line resistances are also measured Yes; Line resistances are also measured Yes; Line resistances are also measured
● for resistance measurement with three-wire connection Yes; Line resistances are also measured Yes; Line resistances are also measured Yes
● for resistance measurement with four-wire connection Yes Yes Yes
Errors/accuracies
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-) 0.65 %; 1.0 % at 1 to 5 V; 0.65 % at ±1 V, ±10 V 0.7 %; ±0.7 % at ±1 V; ±0.9 % at ±10 V, 1 to 5 V 1 %; ±1.0 % at ±1 V; ±0.6 % at ±10 V; ±0.7 % at 1 to 5 V 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
● Current, relative to input range, (+/-) 0.65 % 0.8 %; at ±20 mA, 4 to 20 mA 1 %; at ±20 mA, 4 to 20 mA 0.35 %; ±20 mA, 0 to 20 mA, 4 to 20 mA
● Resistance, relative to input range, (+/-) 1 % 1.25 %; 0 to 500 ohms (4-conductor measurement, in range of 600 ohms) 0.5 %
● Resistance thermometer, relative to input range, (+/-) 0.5 %
● 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, (+/-) 0.25 %; 0.5% at 1 to 5 V; 0.25% at ±1 V, ±10 V 0.6 %; 0.6 % at ±1 V; 0.75 % at ±10 V, 1 to 5 V 0.7 %; 0.7% at ±1 V; 0.4% at ±10 V; 0.5% at 1 to 5 V 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)
● Current, relative to input range, (+/-) 0.25 %; at ±20 mA, 4 to 20 mA 0.7 %; at ±20 mA, 4 to 20 mA 0.7 %; at ±20 mA, 4 to 20 mA 0.15 %; ±20 mA, 0 to 20 mA, 4 to 20 mA
● Resistance, relative to input range, (+/-) 0.7 %; 0 to 600 ohms 0.8 %; 0 to 500 ohms (4-conductor measurement, in range of 600 ohms) 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)
● Resistance thermometer, relative to input range, (+/-) 0.3 %
● 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 No No No
Potential separation
Potential separation analog inputs
● Potential separation analog inputs No Yes; internal/external Yes; internal/external Yes; internal/external
● between the channels No No No No
● between the channels and backplane bus No Yes Yes Yes
● Between the channels and load voltage L+ No Yes Yes
Isolation
Isolation tested with 500 V AC/707 V DC, type test 2 120 V DC between bus and analog section; 500 V DC between bus and local ground; 500 V DC between analog part and L+/M; 2 120 V DC between analog part and local ground; 2 120 V DC between L+/M and local ground 2 120 V DC between bus and analog part; 500 V DC between bus and local ground; 2 120 V DC between analog part and local ground 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 25 mm 25 mm 25 mm
Height 290 mm 290 mm 290 mm 290 mm
Depth 210 mm 210 mm 210 mm 210 mm
Weights
Weight, approx. 500 g 500 g 500 g 500 g

 

Article number 6ES7431-7QH00-0AB0 6ES7431-7KF00-0AB0 6ES7431-7KF10-0AB0
SIMATIC S7-400, SM 431 SM 431, 8AI, U/I/THERMO, 16BIT SM 431, 8AI, RESIST./PT100, 16BIT,
Supply voltage
Load voltage L+
● Rated value (DC) 24 V; Only required for supplying 2-wire transmitters
● Reverse polarity protection Yes
Input current
from load voltage L+ (without load), max. 400 mA; for 16 connected, fully controlled 2-wire transmitters
from backplane bus 5 V DC, max. 700 mA 1 200 mA 650 mA
Power loss
Power loss, typ. 4.5 W 4.6 W 3.3 W
Analog inputs
Number of analog inputs 16 8 8
● For voltage/current measurement 16 8
● For resistance measurement 8 8
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) 35 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20) 35 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20)
permissible input current for current input (destruction limit), max. 40 mA 32 mA
Constant measurement current for resistance-type transmitter, typ. 1.67 mA 1 mA
Input ranges
● Voltage Yes Yes No
● Current Yes Yes No
● Thermocouple Yes Yes No
● Resistance thermometer Yes No Yes
● Resistance Yes No Yes
Input ranges (rated values), voltages
● 1 V to 5 V Yes Yes
— Input resistance (1 V to 5 V) 1 MΩ > 2 000 ohms
● -1 V to +1 V Yes Yes
— Input resistance (-1 V to +1 V) 1 MΩ
● -10 V to +10 V Yes Yes
— Input resistance (-10 V to +10 V) 1 MΩ
● -100 mV to +100 mV Yes
● -2.5 V to +2.5 V Yes Yes
— Input resistance (-2.5 V to +2.5 V) 1 MΩ
● -20 mV to +20 mV Yes
● -25 mV to +25 mV Yes
— Input resistance (-25 mV to +25 mV) 1 MΩ
● -250 mV to +250 mV Yes Yes
— Input resistance (-250 mV to +250 mV) 1 MΩ
● -5 V to +5 V Yes Yes
— Input resistance (-5 V to +5 V) 1 MΩ
● -50 mV to +50 mV Yes Yes
— Input resistance (-50 mV to +50 mV) 1 MΩ
● -500 mV to +500 mV Yes Yes
— Input resistance (-500 mV to +500 mV) 1 MΩ
● -80 mV to +80 mV Yes Yes
— Input resistance (-80 mV to +80 mV) 1 MΩ
Input ranges (rated values), currents
● 0 to 20 mA Yes Yes
— Input resistance (0 to 20 mA) 50 Ω
● -10 mA to +10 mA Yes Yes
— Input resistance (-10 mA to +10 mA) 50 Ω
● -20 mA to +20 mA Yes Yes
— Input resistance (-20 mA to +20 mA) 50 Ω
● -3.2 mA to +3.2 mA Yes
● 4 mA to 20 mA Yes Yes
— Input resistance (4 mA to 20 mA) 50 Ω 50 Ω
● -5 mA to +5 mA Yes Yes
— Input resistance (-5 mA to +5 mA) 50 Ω
Input ranges (rated values), thermocouples
● Type B Yes Yes
— Input resistance (Type B) 1 MΩ > 2 000 ohms
● Type E Yes Yes
— Input resistance (Type E) 1 MΩ
● Type J Yes Yes
— Input resistance (type J) 1 MΩ
● Type K Yes Yes
— Input resistance (Type K) 1 MΩ
● Type L Yes Yes
— Input resistance (Type L) 1 MΩ
● Type N Yes Yes
— Input resistance (Type N) 1 MΩ > 2 000 ohms
● Type R Yes Yes
— Input resistance (Type R) 1 MΩ
● Type S Yes Yes
— Input resistance (Type S) 1 MΩ
● Type T Yes Yes
— Input resistance (Type T) 1 MΩ
● Type U Yes Yes
— Input resistance (Type U) 1 MΩ
Input ranges (rated values), resistance thermometer
● Ni 100 Yes Yes
— Input resistance (Ni 100) 1 MΩ > 10 000 ohms
● Ni 1000 Yes Yes; Different characteristics selectable: Europe/U.S.
— Input resistance (Ni 1000) 1 MΩ > 10 000 ohms
● Pt 100 Yes Yes
— Input resistance (Pt 100) 1 MΩ > 10 000 ohms
● Pt 1000 Yes Yes
— Input resistance (Pt 1000) 1 MΩ > 10 000 ohms
● Pt 200 Yes Yes
— Input resistance (Pt 200) 1 MΩ > 10 000 ohms
● Pt 500 Yes Yes
— Input resistance (Pt 500) 1 MΩ > 10 000 ohms
Input ranges (rated values), resistors
● 0 to 48 ohms Yes
— Input resistance (0 to 48 ohms) 1 MΩ
● 0 to 150 ohms Yes
— Input resistance (0 to 150 ohms) 1 MΩ
● 0 to 300 ohms Yes
— Input resistance (0 to 300 ohms) 1 MΩ
● 0 to 600 ohms Yes
— Input resistance (0 to 600 ohms) 1 MΩ
● 0 to 6000 ohms Yes; Usable up to 5000 Ohm
— Input resistance (0 to 6000 ohms) 1 MΩ
Thermocouple (TC)
Temperature compensation
— parameterizable Yes Yes
— internal temperature compensation Yes
— external temperature compensation with Pt100 Yes
— external temperature compensation with compensations socket Yes Yes
— dynamic reference temperature value Yes Yes
Characteristic linearization
● parameterizable Yes Yes Yes
— for thermocouples Type B, E, J, K, L, N, R, S, T, U Type B, E, J, K, L, N, R, S, T, U
— for resistance thermometer Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000 Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000; different characteristics selectable (Europe/U.S.)
Cable length
● shielded, max. 200 m; 50 m with thermocouples and input ranges ≤ 80 mV 200 m 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. 16 bit; 16 / 16 / 16 16 bit 16 bit
● Integration time, parameterizable Yes Yes Yes
● Basic conversion time (ms) 6 / 20,1 / 23,5 ms 10 / 16,7 / 20 / 100 8 / 23 / 25 ms
● Integration time (ms) 2,5 / 16,7 / 20 ms 2,5 / 16,7 / 20 / 100 20 ms at 50 Hz (entire module incl. wire break)
● Interference voltage suppression for interference frequency f1 in Hz 400 / 60 / 50 Hz 400 / 60 / 50 / 10 Hz none/ 60 / 50 Hz
Encoder
Connection of signal encoders
● for voltage measurement Yes; possible Yes; possible
● for current measurement as 2-wire transducer Yes
● for current measurement as 4-wire transducer Yes Yes
● for resistance measurement with two-wire connection Yes; Line resistances are also measured
● for resistance measurement with three-wire connection Yes Yes
● for resistance measurement with four-wire connection Yes Yes Yes
Errors/accuracies
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-) 0.3 %; ±0.3 % at ±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, 1 to 5 V, ±10 V; ±0.31 % at ±80 mV; ±0.32 % at ±50 mV; ±0.35 % at ±25 mV 0.3 %
● Current, relative to input range, (+/-) 0.3 %; at 0 to 20 mA, ±5 mA, ±10 mA, ±20 mA, 4 to 20 mA 0.5 %
● Resistance, relative to input range, (+/-) 0.3 %; ±0.3% at 0 to 48 Ohm (4-conductor measurement), 0 to 150 Ohm (4-conductor measurement), 0 to 300 Ohm (4-conductor measurement), 0 to 600 Ohm (4-conductor measurement), 0 to 5000 Ohm (4-conductor measurement, in range of 6000 Ohm); ±0.4% at 0 to 300 Ohm (3-conductor measurement), 0 to 600 Ohm (3-conductor measurement), 0 to 5000 Ohm (3-conductor measurement, in range of 6000 Ohm);
● Resistance thermometer, relative to input range, (+/-) 0.4 % ±1 °C
● Thermocouple, relative to input range, (+/-) TC Type B (±11.5 K), TC Type R (±7.3 K), TC Type S (±8.3 K), TC Type T (±1.7 K), TC Type E (±3.2 K), TC Type J (±4.3 K), TC Type K (±6.2 K), TC Type U (±2.8 K), TC Type L (±4.2 K), TC Type N (±4.4 K)
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-) 0.15 %; ±0.15% at ±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, 1 V to 5 V, ±10 V; ±0.17% at ±80 mV; ±0.19% at ±50 mV; ±0.23% at ±25 mV 0.1 %
● Current, relative to input range, (+/-) 0.15 %; at 0 to 20 mA, ±5 mA, ±10 mA, ±20 mA, 4 to 20 mA 0.17 %
● 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 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)
● Resistance thermometer, relative to input range, (+/-) 0.3 % ±0,2 °C
● Thermocouple, relative to input range, (+/-) TC Type B (±7.6 K), TC Type R (±4.8 K) TC Type S (±5.4 K), TC Type T (±1.1 K), TC Type E (±1.8 K), TC Type J (±2.3 K), TC Type K (±3.4 K), TC Type U (±1.7 K), TC Type L (±2.3 K), TC Type N (±2.6 K)
Interrupts/diagnostics/status information
Diagnostics function Yes; Parameterizable Yes; Parameterizable Yes; Parameterizable
Alarms
● Diagnostic alarm Yes; Parameterizable Yes; Parameterizable Yes; Parameterizable
● Limit value alarm Yes; Parameterizable Yes Yes
● Hardware interrupt Yes; Parameterizable Yes; Parameterizable Yes; Parameterizable
Diagnoses
● Diagnostic information readable Yes Yes; possible Yes; possible
Diagnostics indication LED
● internal fault INTF (red) Yes
● external fault EXTF (red) Yes
Potential separation
Potential separation analog inputs
● Potential separation analog inputs Yes; internal/external Yes; internal/external Yes; internal/external
● between the channels No Yes No
● between the channels and backplane bus Yes Yes Yes
● 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 1 500 V DC 500 V DC
Dimensions
Width 25 mm 25 mm 25 mm
Height 290 mm 290 mm 290 mm
Depth 210 mm 210 mm 210 mm
Weights
Weight, approx. 500 g 650 g 650 g
Weight N/A
Dimensions N/A

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