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SIMATIC S7-1200, ANALOG SB 1231 T, 1 X AI THERMOCOUPLE, TYPE J OR K |
Supply voltage |
24 V DC |
Yes |
Input current |
Current consumption, typ. |
5 mA |
from backplane bus 5 V DC, typ. |
20 mA |
Power losses |
Power loss, typ. |
0.5 W |
Analog inputs |
Number of analog inputs |
1; Thermocouples |
permissible input frequency for current input (destruction limit), max. |
± 35 V |
Technical unit for temperature measurement adjustable |
Degrees Celsius/degrees Fahrenheit |
Input ranges |
● Thermocouple |
Yes; J, K; voltage range ±80 MV |
● Resistance thermometer |
No |
● Resistance |
Yes |
Input ranges (rated values), voltages |
● -80 mV to +80 mV |
Yes |
● Input resistance (-80 mV to +80 mV) |
>= 1 MOhm |
Input ranges (rated values), thermoelements |
● Type J |
Yes |
● Input resistance (type J) |
1200 °C |
● Type K |
Yes |
● Input resistance (Type K) |
1372 °C |
Thermocouple (TC) |
● permissible input voltage for voltage input (destruction limit), max. |
+-35 V |
Temperature compensation |
— Parameterizable |
No |
Analog outputs |
Number of analog outputs |
0 |
Analog value creation |
Measurement principle |
integrating |
Integration and conversion time/resolution per channel |
● Resolution with overrange (bit including sign), max. |
15 bit; + sign |
● Integration time, parameterizable |
No |
● Interference voltage suppression for interference frequency f1 in Hz |
85 dB at 10 / 50 / 60 / 400 Hz |
Analog value generation (in isochronous mode) |
Smoothing of measured values |
● Parameterizable |
Yes |
Errors/accuracies |
Temperature error (relative to input range), (+/-) |
25 °C ±0.1% to 55 °C ±0.2% total measurement range |
Repeat accuracy in steady state at 25 °C (relative to output area), (+/-) |
0.5 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency |
● Common mode interference, min. |
120 dB |
Interrupts/diagnostics/status information |
Alarms |
● Alarms |
Yes |
● Diagnostic alarm |
Yes |
Diagnostic messages |
● Diagnostic functions |
Yes; Can be read out |
● Wire break |
Yes |
Diagnostics indication LED |
● for status of the inputs |
Yes |
● for maintenance |
Yes |
Degree and class of protection |
Degree of protection to EN 60529 |
|
● IP20 |
Yes |
Standards, approvals, certificates |
CE mark |
Yes |
RCM (formerly C-TICK) |
Yes |
FM approval |
Yes |
Climatic and mechanical conditions for storage and transport |
Climatic conditions for storage and transport |
Free fall |
— Drop height, max. (in packaging) |
0.3 m; five times, in dispatch package |
Temperature |
— Permissible temperature range |
-40 °C to +70 °C |
Air pressure acc. to IEC 60068-2-13 |
— Permissible air pressure |
1080 to 660 hPa |
Relative humidity |
— Permissible range (without condensation) at 25 °C |
95 % |
Mechanical and climatic conditions during operation |
Climatic conditions in operation |
Temperature |
— Permissible temperature range |
0 °C to 55 °C horizontal installation, 0 °C to 45 °C vertical installation |
Air pressure acc. to IEC 60068-2-13 |
— Permissible air pressure |
1080 to 795 hPa |
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 |
Type of housing (front) |
|
● plastic |
Yes |
Dimensions |
Width |
38 mm |
Height |
62 mm |
Depth |
21 mm |
Weights |
Weight, approx. |
35 g |
last modified: |
14.10.2014 |