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Siemens 6ES7231 0HC22 0XA0 EM231 Analog Input module
Description
Siemens 6ES7231 0HC22 0XA0 EM231 Analog Input module of SIMATIC S7-200 series Programmable Logic Controller (PLC), The Analog input EM 231 module is used only for S7-22X CPU, and this module has 4 AI (Analog Input), 0-10V DC, 12-bit converter.
Specification of Siemens 6ES7231 0HC22 0XA0 EM231 Analog Input module
| BRAND | SIEMENS |
| Model | Siemens 6ES7231 0HC22 0XA0 |
| Product type | EM231 |
| Input current | |
| from load voltage L+ (without load), max. | 60 mA |
| from backplane bus 5 V DC, max. | 20 mA |
| Power loss | |
| 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 10 MΩ |
| — Input resistance (0 to 5 V) | |
| ● 0 to +10 V | Yes 10 MΩ |
| — Input resistance (0 to 10 V) | |
| ● -2.5 V to +2.5 V | YES, 10 MΩ |
| — Input resistance (-2.5 V to +2.5 V) | |
| ● -5 V to +5 V | YES, 10 MΩ |
| — Input resistance (-5 V to +5 V) | |
| Input ranges (rated values), currents | |
| ● 0 to 20 mA | Yes 10 MΩ |
| — Input resistance (0 to 20 mA) | |
| Thermocouple (TC) | |
| Temperature compensation | |
| — parameterizable | No |
| Cable length | |
| ● shielded, max. | 100 m; to the sensor |
| Analog value generation for the inputs | |
| 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 32 000 |
| Errors/accuracies | |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency | |
| ● common mode voltage / with interference voltage suppression / maximum | 12 V |
| Interrupts/diagnostics/status information | |
| Diagnostics indication LED | |
| ● external fault EXTF (red) | Yes |
| Potential separation | |
| Potential separation analog inputs | |
| ● Potential separation 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 |
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