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SIMATIC S7-200, T/C INPUT MOD. EM 231, FOR S7-22X CPU ONLY, 4 AI, /-80 MV AND THERMOCOUPLE TYPE J,K,S,T,R,E,N; 15BIT VORZ. |
| Input current |
| from load voltage L (without load), max. |
60 mA |
| from backplane bus 5 V DC, max. |
87 mA |
| Power losses |
| Power loss, typ. |
1.8 W |
| Analog inputs |
| Number of analog inputs |
4 |
| permissible input voltage for voltage input (destruction limit), max. |
30 V |
| Loop resistance cable |
100 Ω |
| Updating time (all channels) |
405 ms |
| Input ranges |
| ● Voltage |
Yes |
| ● Current |
No |
| ● Thermocouple |
Yes |
| ● Resistance thermometer |
No |
| ● Resistance |
No |
| Input ranges (rated values), voltages |
| ● -80 mV to 80 mV |
Yes |
| ● Input resistance (-80 mV to 80 mV) |
1 MΩ |
| Input ranges (rated values), thermoelements |
| ● Type E |
Yes |
| ● Type J |
Yes |
| ● Input resistance (type J) |
1 MΩ |
| ● Type K |
Yes |
| ● Input resistance (Type K) |
1 MΩ |
| ● Type N |
Yes |
| ● Input resistance (Type N) |
1 MΩ |
| ● Type R |
Yes |
| ● Input resistance (Type R) |
1 MΩ |
| ● Type S |
Yes |
| ● Input resistance (Type S) |
1 MΩ |
| ● Type T |
Yes |
| ● Input resistance (Type T) |
1 MΩ |
| Cable length |
| ● Cable length, shielded, max. |
100 m; to the sensor |
| Analog value creation |
| Measurement principle |
Sigma Delta |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
16 bit; Temperature 0.1 °C / 0.1 °F |
| ● Interference voltage suppression for interference frequency f1 in Hz |
85 dB at 50 / 60 / 400 Hz |
| Displayable conversion value range |
| ● bipolar signals |
-27.648 to 27.648 |
| Errors/accuracies |
| cold connection point |
/-1,5 °C |
| Repeat accuracy in steady state at 25 °C (relative to input area), ( /-) |
0.05 % |
| Operational limit in overall temperature range |
| ● Voltage, relative to output area, ( /-) |
0.1 % |
| Interference voltage suppression for f = n x (f1 /- 1 %), f1 = interference frequency |
| ● common mode voltage, max. |
120 V; AC |
| ● Common mode interference, min. |
120 dB; At 120 V DC |
| Interrupts/diagnostics/status information |
| Diagnostics indication LED |
| ● External fault EXTF (red) |
Yes |
| ● Group error SF (red) |
Yes |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| ● Galvanic isolation analog inputs |
Yes |
| Permissible potential difference |
| between inputs and MANA (UCM) |
500 V AC |
| between M internally and the inputs |
500 V AC |
| Connection method |
| Plug-in I/O terminals |
No |
| Dimensions |
| Width |
71.2 mm |
| Height |
80 mm |
| Depth |
62 mm |
| Weights |
| Weight, approx. |
210 g |
| last modified: |
08.09.2014 |
