General information | | |
Product type designation | SM 1234 A I4x13 bit AQ 2x14 bit | SM 1234 A I4x13 bit AQ 2x14 bit |
Supply voltage | | |
Rated value (DC) | | |
| Yes | Yes |
Input current | | |
Current consumption, typ. | 60 mA | 60 mA |
from backplane bus 5 V DC, typ. | 80 mA | 80 mA |
Power loss | | |
Power loss, typ. | 2 W | 2 W |
Analog inputs | | |
Number of analog inputs | 4; Current or voltage differential inputs | 4; Current or voltage differential inputs |
permissible input voltage for current input (destruction limit), max. | ± 35 V | ± 35 V |
permissible input voltage for voltage input (destruction limit), max. | 35 V | 35 V |
permissible input current for voltage input (destruction limit), max. | 40 mA | 40 mA |
permissible input current for current input (destruction limit), max. | 40 mA | 40 mA |
Cycle time (all channels) max. | 625 µs | 625 µs |
Input ranges | | |
| Yes; ±10V, ±5V, ±2.5V | Yes; ±10V, ±5V, ±2.5V |
| Yes; 4 to 20 mA, 0 to 20 mA | Yes; 4 to 20 mA, 0 to 20 mA |
Input ranges (rated values), voltages | | |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
Input ranges (rated values), currents | | |
| Yes | Yes |
| Yes | Yes |
Analog outputs | | |
Number of analog outputs | 2; Current or voltage | 2; Current or voltage |
Output ranges, voltage | | |
| Yes | Yes |
Output ranges, current | | |
| Yes | Yes |
| Yes | Yes |
Load impedance (in rated range of output) | | |
| 1 000 ? | 1 000 ? |
| 600 ? | 600 ? |
Analog value generation for the inputs | | |
Measurement principle | Differential | Differential |
Integration and conversion time/resolution per channel | | |
| 12 bit; + sign | 12 bit; + sign |
| Yes | Yes |
| 40 dB, DC to 60 V for interference frequency 50 / 60 Hz | 40 dB, DC to 60 V for interference frequency 50 / 60 Hz |
Smoothing of measured values | | |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
Analog value generation for the outputs | | |
Integration and conversion time/resolution per channel | | |
| Voltage: 14 bits; Current : 13 bits | Voltage: 14 bits; Current : 13 bits |
Errors/accuracies | | |
Temperature error (relative to input range), (+/-) | 25 °C ±0.1 % / -40 °C to 70 °C ±0.28 % of the full-scale deflection | 25 °C ±0.1%, to 55 °C ±0.2% total measurement range |
Temperature error (relative to output range), (+/-) | 25 °C ±0.3 % / -40 °C to 70 °C ±0.85 % of the full-scale deflection | 25 °C ±0.3%, to 55 °C ±0.6% total measurement range |
Basic error limit (operational limit at 25 °C) | | |
| 0.1 % | 0.1 % |
| 0.1 % | 0.1 % |
| 0.3 % | 0.3 % |
| 0.3 % | 0.3 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency | | |
| 12 V | 12 V |
Interrupts/diagnostics/status information | | |
Alarms | Yes | Yes |
Diagnostic functions | Yes | Yes |
Alarms | | |
| Yes | Yes |
Diagnostic messages | | |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
Diagnostics indication LED | | |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
Potential separation analog outputs | | |
| No | No |
Degree and class of protection | | |
Degree of protection acc. to EN 60529 | | |
| Yes | Yes |
Standards, approvals, certificates | | |
CE mark | Yes | Yes |
Ambient conditions | | |
Free fall | | |
| 0.3 m; five times, in product package | 0.3 m; five times, in product package |
Ambient temperature during operation | | |
| -40 °C; = Tmin; Startup @ -25 °C | -20 °C; = Tmin; Startup @ 0 °C |
| 70 °C; = Tmax; Tmax > +60 °C number of simultaneously used outputs 1, inputs 2 (no adjacent points) for horizontal mounting position | 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) | 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) | 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 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 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! | Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation! |
Connection method | | |
required front connector | Yes | Yes |
Mechanics/material | | |
Enclosure material (front) | | |
| Yes | Yes |
Dimensions | | |
Width | 45 mm | 45 mm |
Height | 100 mm | 100 mm |
Depth | 75 mm | 75 mm |
Weights | | |
Weight, approx. | 220 g | 220 g |