General information | |
Product type designation | SM 1231 AI 4x13 bit |
Supply voltage | |
Rated value (DC) | |
| Yes |
Input current | |
Current consumption, typ. | 45 mA |
from backplane bus 5 V DC, typ. | 80 mA |
Power loss | |
Power loss, typ. | 1.5 W |
Analog inputs | |
Number of analog inputs | 4; Current or voltage differential inputs |
permissible input voltage for current input (destruction limit), max. | ± 35 V |
permissible input voltage for voltage input (destruction limit), max. | 35 V |
permissible input current for voltage input (destruction limit), max. | 40 mA |
permissible input current for current input (destruction limit), max. | 40 mA |
Cycle time (all channels) max. | 625 µs |
Input ranges | |
| Yes; ±10V, ±5V, ±2.5V |
| Yes; 4 to 20 mA, 0 to 20 mA |
| No |
| No |
| No |
Input ranges (rated values), voltages | |
| Yes |
| Yes |
| Yes |
Input ranges (rated values), currents | |
| Yes |
| Yes |
Analog value generation for the inputs | |
Integration and conversion time/resolution per channel | |
| 12 bit; + sign |
| Yes |
| 40 dB, DC to 60 V for interference frequency 50 / 60 Hz |
Smoothing of measured values | |
| Yes |
| Yes |
| Yes |
| Yes |
| 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) | |
| 0.1 % |
| 0.1 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency | |
| 12 V |
Interrupts/diagnostics/status information | |
Alarms | Yes |
Diagnostic functions | Yes |
Alarms | |
| Yes |
Diagnostic messages | |
| Yes |
| Yes |
Diagnostics indication LED | |
| Yes |
| Yes |
Degree and class of protection | |
Degree of protection acc. to EN 60529 | |
| Yes |
Standards, approvals, certificates | |
CE mark | Yes |
Ambient conditions | |
Free fall | |
| 0.3 m; five times, in product package |
Ambient temperature during operation | |
| -20 °C; = Tmin; Startup @ 0 °C |
| 60 °C; = Tmax |
Extended ambient conditions | |
| Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m) // Tmin ... (Tmax - 10K) at 795 hPa ... 658 hPa (+2000 m ... +3500 m) // Tmin ... (Tmax - 20K) at 658 hPa ... 540 hPa (+3500 m ... +5000 m) |
Relative humidity | |
| 100 %; RH incl. condensation/frost (no commissioning under condensation conditions) |
Resistance | |
| Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna). The supplied connector covers must remain on the unused interfaces during operation! |
| Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation! |
| Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation! |
Connection method | |
required front connector | Yes |
Mechanics/material | |
Enclosure material (front) | |
| Yes |
Dimensions | |
Width | 45 mm |
Height | 100 mm |
Depth | 75 mm |
Weights | |
Weight, approx. | 180 g |