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SIMATIC S7-200, ANALOG I/O EM 235, FOR S7-22X CPU ONLY, 4 AI, DC +/-10V; 1AQ, DC +/-10V 12 BIT CONVERTER |
| Input current |
| from backplane bus 5 V DC, max. |
30 mA |
| from sensor current supply or external current supply (24 V DC), max. |
60 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 |
| Input ranges (rated values), voltages |
| ● 0 to +50 mV |
Yes |
| ● 0 to +100 mV |
Yes |
| ● 0 to +500 mV |
Yes |
| ● 0 to +1 V |
Yes |
| ● 0 to +5 V |
Yes |
| ● 0 to +10 V |
Yes |
| ● -1 V to +1 V |
Yes |
| ● -10 V to +10 V |
Yes |
| ● -100 mV to +100 mV |
Yes |
| ● -2.5 V to +2.5 V |
Yes |
| ● -25 mV to +25 mV |
Yes |
| ● -250 mV to +250 mV |
Yes |
| ● -5 V to +5 V |
Yes |
| ● -50 mV to +50 mV |
Yes |
| ● -500 mV to +500 mV |
Yes |
| Input ranges (rated values), currents |
| ● 0 to 20 mA |
Yes |
| Thermocouple (TC) |
| Temperature compensation |
| — Parameterizable |
No |
| Analog outputs |
| Number of analog outputs |
1 |
| Output ranges, voltage |
| ● -10 to +10 V |
Yes |
| Output ranges, current |
| ● 0 to 20 mA |
Yes |
| Load impedance (in rated range of output) |
| ● with voltage outputs, min. |
5 kΩ |
| ● with current outputs, max. |
0.5 kΩ |
| Analog value creation |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
12 bit; 11 bits for current output |
| ● Basic conversion time, ms |
< 0.25 ms |
| ● Interference voltage suppression for interference frequency f1 in Hz |
40 dB, DC to 60 Hz |
| Settling time |
| ● for voltage output |
100 µs |
| ● for current output |
2 ms |
| Displayable conversion value range |
| ● bipolar signals |
-32 000 to +32 000 |
| ● unipolar signals |
0 to 32000 |
| Errors/accuracies |
| Operational limit in overall temperature range |
| ● Voltage, relative to output area, (+/-) |
2 % |
| ● Current, relative to output area, (+/-) |
2 % |
| Basic error limit (operational limit at 25 °C) |
| ● Voltage, relative to output area, (+/-) |
0.5 % |
| ● Current, relative to output area, (+/-) |
0.5 % |
| 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 |
| ● External fault EXTF (red) |
Yes |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| ● Galvanic isolation analog inputs |
No |
| Galvanic isolation analog outputs |
| ● Galvanic isolation analog outputs |
No |
| Connection method |
| Plug-in I/O terminals |
No |
| Dimensions |
| Width |
71.2 mm |
| Height |
80 mm |
| Depth |
62 mm |
| Weights |
| Weight, approx. |
186 g |
| last modified: |
22.09.2014 |
