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SIMATIC S7-200, ANALOG INPUT EM 231, FOR S7-22X CPU ONLY, 4 AI, 0 - 10V DC, 12 BIT CONVERTER |
| Input current |
| from load voltage L+ (without load), max. |
60 mA |
| from backplane bus 5 V DC, max. |
20 mA |
| Power losses |
| Power loss, typ. |
2 W |
| Analog inputs |
| Number of analog inputs |
4; Difference |
| permissible input voltage for voltage input (destruction limit), max. |
30 V |
| permissible input current for current input (destruction limit), max. |
32 mA |
| Input ranges |
| ● Voltage |
Yes |
| ● Current |
Yes |
| ● Thermocouple |
No |
| ● Resistance thermometer |
No |
| ● Resistance |
No |
| Input ranges (rated values), voltages |
| ● 0 to +5 V |
Yes |
| ● Input resistance (0 to 5 V) |
10 MΩ |
| ● 0 to +10 V |
Yes |
| ● Input resistance (0 to 10 V) |
10 MΩ |
| ● -2.5 V to +2.5 V |
Yes |
| ● Input resistance (-2.5 V to +2.5 V) |
10 MΩ |
| ● -5 V to +5 V |
Yes |
| ● Input resistance (-5 V to +5 V) |
10 MΩ |
| Input ranges (rated values), currents |
| ● 0 to 20 mA |
Yes |
| ● Input resistance (0 to 20 mA) |
10 MΩ |
| Thermocouple (TC) |
| Temperature compensation |
| — Parameterizable |
No |
| Cable length |
| ● Cable length, shielded, max. |
100 m; to the sensor |
| Analog value creation |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
12 bit |
| ● Interference voltage suppression for interference frequency f1 in Hz |
40 dB, DC to 60 V for interference frequency 50 / 60 Hz |
| ● Conversion time (per channel) |
250 µs |
| Displayable conversion value range |
| ● bipolar signals |
-32 000 to +32 000 |
| ● unipolar signals |
0 to 32000 |
| Errors/accuracies |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency |
| ● common mode voltage, max. |
12 V |
| Interrupts/diagnostics/status information |
| Diagnostics indication LED |
| ● Description |
LED, EXTF |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| ● Galvanic isolation analog inputs |
No |
| Connection method |
| Plug-in I/O terminals |
No |
| Dimensions |
| Width |
71.2 mm |
| Height |
80 mm |
| Depth |
62 mm |
| Weights |
| Weight, approx. |
183 g |
| last modified: |
25.09.2014 |
