| SIMATIC SC,ELECTRONIC SUBMODULE 2 AI, 4..20MA, +/-20MA HIGH ACCURACY |
|
Supply voltage |
Rated value (DC) | 24 V |
Reverse polarity protection | Yes |
Input current |
from supply voltage L+, max. | 30 mA |
Power losses |
Power loss, max. | 0.6 W |
Hardware configuration |
Rack |
Required terminal block | TB 16SC |
Analog inputs |
Number of analog inputs | 2 |
permissible input current for current input (destruction limit), max. | 40 mA; Permanent |
Input ranges |
Current | Yes |
Input ranges (rated values), currents |
-20 to +20 mA | Yes |
Input resistance (-20 to +20 mA) | 50 Ω |
4 to 20 mA | Yes |
Input resistance (4 to 20 mA) | 50 Ω |
[nicht versorgt: TAK_ABP363_001_000] |
[nicht versorgt: TAK_ABT261_001_000] |
Parameterizable | No |
Characteristic linearization |
Parameterizable | No |
Cable length |
Cable length, shielded, max. | 200 m |
Analog value creation |
Measurement principle | integrating |
Integrations and conversion time/ resolution per channel |
Resolution (incl. overrange) | 4 to 20 mA: 12 bits, +/-20 mA: 13 bits |
Resolution with overrange (bit including sign), max. | 13 bit |
Integration time, parameterizable | Yes |
Basic conversion time, ms | 55 / 65 ms |
Integration time, ms | 50 / 60 ms |
Smoothing of measured values |
Parameterizable | Yes; parameterizable in 4 stages by means of digital filtering |
Step: None | Yes; 1 x cycle time |
Step: low | Yes; 8 x cycle time |
Step: Medium | Yes; 64 x cycle time |
Step: High | Yes; 128 x cycle time |
Encoder |
Connection of signal encoders |
for voltage measurement as 2-wire transducer | Yes; 4-wire transformer with external transmitter feed |
Connectable encoders |
Constant measurement current for resistance-type transmitter, typ. | 1.5 mA |
Errors/accuracies |
Linearity error (relative to input area) | +/- 0,05 % |
Temperature error (relative to input area) | +/- 0,01 %/K |
Crosstalk between the inputs, min. | 50 dB; At 50/60 Hz |
Repeat accuracy in settled status at 25 °C (relative to input area) | +/- 0,06 % |
Operational limit in overall temperature range |
Current, relative to input area | +/- 0,3 % |
Basic error limit (operational limit at 25 °C) |
Current, relative to input area | +/- 0,1 % |
Interference voltage suppression for f = n x (fl +/- 1%), fl = interference frequency |
Series mode interference (peak value of interference < rated value of input range), min. | 70 dB |
common mode voltage (USS < 2.5 V) , min. | 90 dB |
Interrupts/diagnostics/status information |
Alarms |
Alarms | No |
Diagnostic messages |
Diagnostic functions | No |
Galvanic isolation |
Galvanic isolation analog inputs |
between the channels | No |
between the channels and the backplane bus | No; Optocoupler |
between the channels and the power supply of the electronics | No |
Permissible potential difference |
between inputs and MANA (UCM) | 2 V DC / 2 Vpp AC |
Isolation |
Isolation checked with | 1500 V AC |
Dimensions |
Width | 10 mm |
Height | 64 mm |
Depth | 51 mm |
Required slots | 1; from 8 |
Weight |
Weight, approx. | 20 g |
Status | Jan 30, 2012 |