| Input ranges | |||||||||||
| ● Voltage | Yes | ||||||||||
| ● Current | Yes | ||||||||||
| ● Thermocouple | Yes | ||||||||||
| ● Resistance thermometer | Yes | ||||||||||
| ● Resistance | Yes | ||||||||||
| Input ranges (rated values), voltages | |||||||||||
| ● 0 to +10 V | No | ||||||||||
| ● 1 V to 5 V | Yes | ||||||||||
| — Input resistance (1 V to 5 V) | 100 kΩ | ||||||||||
| ● 1 V to 10 V | No | ||||||||||
| ● -1 V to +1 V | Yes | ||||||||||
| — Input resistance (-1 V to +1 V) | 10 MΩ | ||||||||||
| ● -10 V to +10 V | Yes | ||||||||||
| — Input resistance (-10 V to +10 V) | 100 kΩ | ||||||||||
| ● -2.5 V to +2.5 V | Yes | ||||||||||
| — Input resistance (-2.5 V to +2.5 V) | 100 kΩ | ||||||||||
| ● -250 mV to +250 mV | Yes | ||||||||||
| — Input resistance (-250 mV to +250 mV) | 10 MΩ | ||||||||||
| ● -5 V to +5 V | Yes | ||||||||||
| — Input resistance (-5 V to +5 V) | 100 kΩ | ||||||||||
| ● -50 mV to +50 mV | No | ||||||||||
|
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| ● -500 mV to +500 mV — Input resistance (-500 mV to +500 mV) ● -80 mV to +80 mV — Input resistance (-80 mV to +80 mV) |
Yes 10 MΩ Yes 10 MΩ |
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| Input ranges (rated values), currents | |||||||||||
| ● 0 to 20 mA — Input resistance (0 to 20 mA) ● -10 mA to +10 mA — Input resistance (-10 mA to +10 mA) ● -20 mA to +20 mA — Input resistance (-20 mA to +20 mA) ● -3.2 mA to +3.2 mA — Input resistance (-3.2 mA to +3.2 mA) ● 4 mA to 20 mA — Input resistance (4 mA to 20 mA) |
Yes 25 Ω Yes 25 Ω Yes 25 Ω Yes 25 Ω Yes 25 Ω |
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| Input ranges (rated values), thermocouples | |||||||||||
| ● Type B ● Type C ● Type E — Input resistance (Type E) ● Type J — Input resistance (type J) ● Type K — Input resistance (Type K) ● Type L — Input resistance (Type L) ● Type N — Input resistance (Type N) ● Type R ● Type S ● Type T ● Type U ● Type TXK/TXK(L) to GOST |
No No Yes 10 MΩ Yes 10 MΩ Yes 10 MΩ Yes 10 MΩ Yes 10 MΩ No No No No No |
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| Input ranges (rated values), resistance thermometer | |||||||||||
| ● Cu 10 ● Ni 100 — Input resistance (Ni 100) ● Ni 1000 ● LG-Ni 1000 ● Ni 120 ● Ni 200 ● Ni 500 ● Pt 100 — Input resistance (Pt 100) ● Pt 1000 ● Pt 200 ● Pt 500 |
No Yes; Standard 10 MΩ No No No No No Yes; Standard 10 MΩ No No No |
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| Input ranges (rated values), resistors | |||||||||||
| ● 0 to 150 ohms — Input resistance (0 to 150 ohms) ● 0 to 300 ohms — Input resistance (0 to 300 ohms) ● 0 to 600 ohms — Input resistance (0 to 600 ohms) ● 0 to 6000 ohms |
Yes 10 MΩ Yes 10 MΩ Yes 10 MΩ No |
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| Thermocouple (TC) | |||||||||||
| Temperature compensation | |||||||||||
| — parameterizable — internal temperature compensation — external temperature compensation with compensations socket |
Yes
Yes Yes |
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| — for definable comparison point temperature | Yes | ||||||||||
| Characteristic linearization | |||||||||||
| ● parameterizable — for thermocouples — for resistance thermometer |
Yes Type E, J, K, L, N Pt100 (standard, climatic range), Ni100 (standard, climatic range) |
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| Cable length | |||||||||||
| ● shielded, max. | 200 m; 50 m at 80 mV and thermocouples | ||||||||||
| Analog value generation for the inputs | |||||||||||
| Integration and conversion time/resolution per channel | |||||||||||
| ● Resolution with overrange (bit including sign), max. ● Integration time, parameterizable ● Basic conversion time (ms) ● Interference voltage suppression for interference frequency f1 in Hz |
15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign Yes; 2,5 / 16,67 / 20 / 100 ms 3 / 17 / 22 / 102 ms 400 / 60 / 50 / 10 Hz |
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| Encoder | |||||||||||
| Connection of signal encoders | |||||||||||
| ● for voltage measurement ● for current measurement as 2-wire transducer ● for current measurement as 4-wire transducer ● for resistance measurement with two-wire connection ● for resistance measurement with three-wire connection ● for resistance measurement with four-wire connection |
Yes
Yes Yes Yes Yes Yes |
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| Errors/accuracies | |||||||||||
| Operational error limit in overall temperature range | |||||||||||
| ● Voltage, relative to input range, (+/-) ● Current, relative to input range, (+/-) ● Resistance, relative to input range, (+/-) ● Resistance thermometer, relative to input range, (+/-) ● Thermocouple, relative to input range, (+/-) |
1 %; ±1% (80 mV); ±0.6% (250 mV to 1 000 mV); ±0.8% (2.5 V to 10 V) 0.7 %; From 3.2 to 20 mA 0.7 %; 150, 300, 600 Ohm 0.7 %; ±0.7 % (Pt100/ Ni100); ±0.8 % (Pt100 climate) 1.1 %; Type E, J, K, L, N |
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| Basic error limit (operational limit at 25 °C) | |||||||||||
| ● Voltage, relative to input range, (+/-) ● Current, relative to input range, (+/-) ● Resistance, relative to input range, (+/-) ● Resistance thermometer, relative to input range, (+/-) ● Thermocouple, relative to input range, (+/-) |
0.6 %; ±0.4 % (250 mV to 1 000 mV); ±0.6 % (2.5 mV to 10 mV); ±0.7 % (80 mV) 0.5 %; 3.2 to 20 mA 0.5 %; 150, 300, 600 Ohm 0.6 %; ±0.5% (Pt100/ Ni100), ±0.6% (Pt100 climate) 0.7 %; Type E, N, J, K, L |
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| Interrupts/diagnostics/status information | |||||||||||
| Diagnostics function | Yes; Parameterizable | ||||||||||
| Alarms | |||||||||||
| ● Diagnostic alarm ● Limit value alarm |
Yes; Parameterizable, channels 0 and 2 Yes; Parameterizable | ||||||||||
| Diagnoses | |||||||||||
| ● Diagnostic information readable | Yes | ||||||||||
| Diagnostics indication LED | |||||||||||
| ● Group error SF (red) | Yes | ||||||||||
| Potential separation | |||||||||||
| Potential separation analog inputs | |||||||||||
| ● between the channels ● between the channels and backplane bus ● between the channels and the power supply of the electronics |
No
Yes Yes |
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| Isolation | |||||||||||
| Isolation tested with | 500 V DC | ||||||||||
| connection method | |||||||||||
| required front connector | 20-pin | ||||||||||
| Dimensions | |||||||||||
| Width | 40 mm 125 mm 117 mm |
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| Height | |||||||||||
| Depth | |||||||||||
| Weights | |||||||||||
| Weight, approx. | 250 g | ||||||||||
SIMENS-6ES7331-7KF02-0AB0
SIMATIC S7-300, Analog input SM 331, isolated, 8 AI, Resolution 9/12/14 bits,
U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole Removing/inserting with
active backplane bus
Description
Additional information
| Dimensions | 40 × 125 × 117 cm |
|---|---|
| Input current |
from backplane bus 5 V DC, max. 90 mA |
| Power loss, typ |
1 w |
| Analog inputs |
Analog inputs Number of analog inputs 8 ● For resistance measurement 4, permissible input current for current input (destruction limit), max. 40 mA Constant measurement current for resistance-type transmitter, typ. 1.67 mA, permissible input voltage for voltage input (destruction limit), max. 20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20) |
| Supply voltage |
● Reverse polarity protection Yes |
| Brand |
SIEMENS |
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