Article number |
6ES7231-4HF30-0XB0
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6ES7231-4HF32-0XB0
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***Spare part*** SIMATIC S7-1200, Analog input, SM 1231, 8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20mA 12 bit+sign or (13 bit ADC) |
SIMATIC S7-1200, Analog input, SM 1231, 8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign or (13 bit ADC) |
General information |
Product type designation |
SM 1231, AI 8x13 bit |
Supply voltage |
Rated value (DC) |
24 V |
Input current |
Current consumption, typ. |
45 mA |
60 mA |
from backplane bus 5 V DC, typ. |
90 mA |
Power loss |
Power loss, typ. |
1.5 W |
Analog inputs |
Number of analog inputs |
8; Current or voltage differential inputs |
permissible input voltage for voltage input (destruction limit), max. |
35 V |
permissible input current for current input (destruction limit), max. |
40 mA |
Cycle time (all channels) max. |
625 µs |
Input ranges |
● Voltage |
Yes; ±10V, ±5V, ±2.5V |
● Current |
Yes; 0 to 20 mA |
Yes; 4 to 20 mA, 0 to 20 mA |
● Thermocouple |
No |
● Resistance thermometer |
No |
● Resistance |
No |
Yes |
Input ranges (rated values), voltages |
● -10 V to +10 V |
Yes |
— Input resistance (-10 V to +10 V) |
≥9 MOhm |
● -2.5 V to +2.5 V |
Yes |
— Input resistance (-2.5 V to +2.5 V) |
≥9 MOhm |
● -5 V to +5 V |
Yes |
— Input resistance (-5 V to +5 V) |
≥9 MOhm |
Input ranges (rated values), currents |
● 0 to 20 mA |
Yes |
— Input resistance (0 to 20 mA) |
280 Ω |
● 4 mA to 20 mA |
|
Yes |
— Input resistance (4 mA to 20 mA) |
|
280 Ω |
Thermocouple (TC) |
Temperature compensation |
— parameterizable |
No |
Analog value generation for the inputs |
Integration and conversion time/resolution per channel |
● Resolution with overrange (bit including sign), max. |
12 bit; + sign |
● Integration time, parameterizable |
Yes |
● Interference voltage suppression for interference frequency f1 in Hz |
40 dB, DC to 60 V for interference frequency 50 / 60 Hz |
Smoothing of measured values |
● parameterizable |
Yes |
● Step: None |
Yes |
● Step: low |
Yes |
● Step: Medium |
Yes |
● Step: High |
Yes |
Errors/accuracies |
Temperature error (relative to input range), (+/-) |
25 °C ±0.1%, to 55 °C ±0.2% total measurement range |
Basic error limit (operational limit at 25 °C) |
● Voltage, relative to input range, (+/-) |
0.1 % |
● Current, relative to input range, (+/-) |
0.1 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency |
● common mode voltage / with interference voltage suppression / maximum |
12 V |
Interrupts/diagnostics/status information |
Alarms |
Yes |
Diagnostics function |
Yes |
Alarms |
● Diagnostic alarm |
Yes |
Diagnoses |
● Monitoring the supply voltage |
Yes |
● Wire-break |
No |
Yes |
Diagnostics indication LED |
● for status of the inputs |
Yes |
● for maintenance |
Yes |
Degree and class of protection |
IP degree of protection |
IP20 |
Standards, approvals, certificates |
CE mark |
Yes |
CSA approval |
|
Yes |
UL approval |
|
Yes |
cULus |
|
Yes |
FM approval |
Yes |
RCM (formerly C-TICK) |
Yes |
KC approval |
|
Yes |
Marine approval |
|
Yes |
Ambient conditions |
Free fall |
● Fall height, max. |
0.3 m; five times, in product package |
Ambient temperature during operation |
● min. |
0 °C |
-20 °C |
● max. |
55 °C |
60 °C |
● horizontal installation, min. |
0 °C |
-20 °C |
● horizontal installation, max. |
55 °C |
60 °C |
● vertical installation, min. |
0 °C |
-20 °C |
● vertical installation, max. |
45 °C |
50 °C |
Ambient temperature during storage/transportation |
● min. |
-40 °C |
● max. |
70 °C |
Air pressure acc. to IEC 60068-2-13 |
● Operation, min. |
795 hPa |
● Operation, max. |
1 080 hPa |
● Storage/transport, min. |
660 hPa |
● Storage/transport, max. |
1 080 hPa |
Relative humidity |
● Operation at 25 ℃ without condensation, max. |
95 % |
Pollutant concentrations |
● SO2 at RH < 60% without condensation |
S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free |
connection method |
required front connector |
Yes |
Mechanics/material |
Enclosure material (front) |
|
● Plastic |
Yes |
Dimensions |
Width |
45 mm |
Height |
100 mm |
Depth |
75 mm |
Weights |
Weight, approx. |
180 g |