| SIMATIC S7-1200, ANALOG INPUT, SM 1231RTD, 8 X AI RTD MODULE, |
|
Supply voltage |
24 V DC | Yes |
Input current |
Current consumption, typ. | 90 mA |
from backplane bus 5 V DC, typ. | 80 mA |
Power losses |
Power loss, typ. | 1.5 W |
Analog inputs |
Number of analog inputs | 8; Resistance thermometer |
permissible input frequency for current input (destruction limit), max. | ± 35 V |
Technical unit for temperature measurement adjustable | Degrees Celsius/degrees Fahrenheit |
Input ranges |
Resistance thermometer | Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
Resistance | Yes; 150 Ω, 300 Ω, 600 Ω |
Input ranges (rated values), resistance thermometers |
Cu 10 | Yes |
Input resistance (Cu 10) | 10 Ω |
Ni 100 | Yes |
Input resistance (Ni 100) | 100 Ω |
Ni 1000 | Yes |
Input resistance (Ni 1000) | 1000 Ω |
LG-Ni 1000 | Yes |
Input resistance (LG-Ni 1000) | 1000 Ω |
Ni 120 | Yes |
Input resistance (Ni 120) | 120 Ω |
Ni 200 | Yes |
Input resistance (Ni 200) | 200 Ω |
Ni 500 | Yes |
Input resistance (Ni 500) | 500 Ω |
Pt 100 | Yes |
Input resistance (Pt 100) | 100 Ω |
Pt 1000 | Yes |
Input resistance (Pt 1000) | 1000 Ω |
Pt 200 | Yes |
Input resistance (Pt 200) | 200 Ω |
Pt 500 | Yes |
Input resistance (Pt 500) | 500 Ω |
Input ranges (rated values), resistors |
0 to 150 ohms | Yes |
0 to 300 ohms | Yes |
0 to 600 ohms | Yes |
Thermocouple (TC) |
Temperature compensation |
Parameterizable | No |
Analog value creation |
Measurement principle | integrating |
Integrations 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 |
Errors/accuracies |
cold connection point | +/-1.5 °C |
Temperature error (relative to input area) | 25 °C ±0.1 % to 55 °C ±0.2 % total measurement range |
Interference voltage suppression for f = n x (fl +/- 1%), fl = 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 |
Monitoring the supply voltage | Yes |
Wire break | Yes |
Diagnostics indication LED |
for status of the inputs | Yes |
for maintenance | 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 |
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 |
Degree and class of protection |
IP20 | Yes |
Standards, approvals, certificates |
CE mark | Yes |
C-TICK | Yes |
FM approval | Yes |
Connection method |
required front connector | Yes |
Mechanics/material |
Type of housing (front) | |
Plastic | Yes |
Dimensions |
Width | 70 mm |
Height | 100 mm |
Depth | 75 mm |
Weight |
Weight, approx. | 220 g |
Status | Mar 12, 2012 |