| SIMATIC DP, HART ANALOG INPUT SM 331, 8 AI, 0/4 - 20MA HART, FOR ET200M WITH IM153-2, 20 PIN |
|
Supply voltage |
Load voltage L+ |
Rated value (DC) | 24 V |
Reverse polarity protection | Yes |
Input current |
from load voltage L+ (without load), max. | 20 mA |
from backplane bus 5 V DC, max. | 120 mA |
Power losses |
Power loss, typ. | 1.5 W |
Analog inputs |
Number of analog inputs | 8 |
Number of analog inputs for resistance measurement | 0 |
permissible input current for current input (destruction limit), max. | 40 mA |
Input ranges |
Current | Yes |
Input ranges (rated values), currents |
0 to 20 mA | Yes |
Input resistance (0 to 20 mA) | 125 Ω |
-20 to +20 mA | Yes |
Input resistance (-20 to +20 mA) | 125 Ω |
4 to 20 mA | Yes |
Input resistance (4 to 20 mA) | 125 Ω |
Cable length |
Cable length, shielded, max. | 800 m |
Analog value creation |
Measurement principle | Sigma Delta |
Integrations and conversion time/ resolution per channel |
Resolution with overrange (bit including sign), max. | 16 bit |
Integration time, parameterizable | Yes |
Integration time, ms | 20 ms at 50 Hz; 16.6 ms at 60 Hz; 100 ms at 100 Hz |
Interference voltage suppression for interference frequency f1 in Hz | 60 / 50 / 10 Hz |
Encoder |
Connection of signal encoders |
for current measurement as 2-wire transducer | Yes |
for current measurement as 4-wire transducer | Yes |
Errors/accuracies |
Operational limit in overall temperature range |
Current, relative to input area | +/- 0,15 % |
Basic error limit (operational limit at 25 °C) |
Current, relative to input area | +/- 0,1 % |
Isochronous mode |
Isochronous operation (application synchronized up to terminal) | No |
Interrupts/diagnostics/status information |
Alarms |
Diagnostic alarm | Yes |
Limit value alarm | Yes |
Diagnostic messages |
Diagnostic functions | Yes |
Diagnostic information readable | Yes |
Diagnostics | Yes |
Group error | Yes |
Diagnostics indication LED |
Group error SF (red) | Yes |
Galvanic isolation |
Galvanic isolation analog inputs |
between the channels | No |
between the channels, in groups of | 8 |
between the channels and the backplane bus | Yes |
Isolation |
Isolation checked with | 500 |
Connection method |
required front connector | 20-pin |
Dimensions |
Width | 40 mm |
Height | 125 mm |
Depth | 117 mm |
Weight |
Weight, approx. | 205 g |
Status | Mar 12, 2012 |