Siemens 6ES7231 4HD32 0XB0 S7 1200 SM1231
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Description
Siemens 6ES7231 4HD32 0XB0 S7 1200 SM1231 is an Analog input module of SIMATIC S7-1200 series Programmable Logic Controller (PLC), The SIMATIC S7-1200, SM 1231 has 4 Analog Input (AI), +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit +sign (13-bit ADC)
Specification of Siemens 6ES7231 4HD32 0XB0 S7 1200 SM1231
| BRAND | SIEMENS |
| MODEL | 6ES7231 4HD32 0XB0 |
| General information | |
| Product type designation | SM 1231, AI 4×13 bit |
| Supply voltage | |
| Rated value (DC) | 24 V |
| Input current | |
| Current consumption, typ. | 45 mA |
| from backplane bus 5 V DC, typ. | 80 mA |
| Power loss | |
| Power loss, typ. | 1.5 W |
| Analog inputs | |
| Number of analog inputs | 4; Current or voltage differential inputs |
| permissible input voltage for voltage input (destruction limit), | 35 V |
| max. | |
| permissible input current for current input (destruction limit), | 40 mA |
| max. | |
| Cycle time (all channels) max. | 625 µs |
| Input ranges | |
| ● Voltage | Yes; ±10V, ±5V, ±2.5V |
| ● Current | Yes; 4 to 20 mA, 0 to 20 mA |
| ● Thermocouple | No |
| ● Resistance thermometer | No |
| ● Resistance | No |
| Input ranges (rated values), voltages | |
| ● -10 V to +10 V | Yes |
| — Input resistance (-10 V to +10 V) | ≥9 MOhm |
| ● -2.5 V to +2.5 V | Yes |
| — Input resistance (-2.5 V to +2.5 V) | ≥9 MOhm |
| ● -5 V to +5 V | Yes |
| — Input resistance (-5 V to +5 V) | ≥9 MOhm |
| Input ranges (rated values), currents | |
| ● 0 to 20 mA | Yes |
| — Input resistance (0 to 20 mA) | 280 Ω |
| ● 4 mA to 20 mA | Yes |
| — Input resistance (4 mA to 20 mA) | 280 Ω |
| Analog value generation for the inputs | |
| Integration and conversion time/resolution per channel | |
| ● Resolution with overrange (bit including sign), max. | 12 bit; + sign Yes |
| ● Integration time, parameterizable | 40 dB, DC to 60 V for interference frequency 50 / 60 Hz |
| ● Interference voltage suppression for interference frequency f1 in Hz | |
| Smoothing of measured values | |
| ● parameterizable | Yes |
| ● Step: None | Yes |
| ● Step: low | Yes |
| ● Step: Medium | Yes |
| ● Step: High | Yes |
| Errors/accuracies | |
| Temperature error (relative to input range), (+/-) | 25 °C ±0.1%, to 55 °C ±0.2% total measurement range |
| Basic error limit (operational limit at 25 °C) | |
| ● Voltage, relative to input range, (+/-) | 0.10% |
| ● Current, relative to input range, (+/-) | 0.10% |
| 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 | |
| Alarms | Yes |
| Diagnostics function | Yes |
| Alarms | |
| ● Diagnostic alarm | Yes |
| Diagnoses | |
| ● Monitoring the supply voltage | Yes Yes |
| ● Wire-break | |
| Diagnostics indication LED | |
| ● for status of the inputs | Yes Yes |
| ● for maintenance | |
| Degree and class of protection | |
| IP degree of protection | IP20 |
| Standards, approvals, certificates | |
| CE mark | Yes Yes Yes Yes Yes Yes Yes |
| CSA approval | Yes |
| UL approval | |
| cULus | |
| FM approval | |
| RCM (formerly C-TICK) | |
| KC approval | |
| Marine approval | |
| Ambient conditions | |
| Free fall | |
| ● Fall height, max. | 0.3 m; five times, in product package |
| Ambient temperature during operation | |
| ● min. | -20 °C |
| ● max. | 60 °C |
| ● horizontal installation, min. | -20 °C |
| ● horizontal installation, max. | 60 °C |
| ● vertical installation, min. | -20 °C |
| ● vertical installation, max. | 50 °C |
| Ambient temperature during storage/transportation | |
| ● min. | -40 °C |
| ● max. | 70 °C |
| Air pressure acc. to IEC 60068-2-13 | |
| ● Operation, min. | 795 hPa |
| ● Operation, max. | 1 080 hPa |
| ● Storage/transport, min. | 660 hPa |
| ● Storage/transport, max. | 1 080 hPa |
| Relative humidity | |
| ● Operation at 25 ℃ without condensation, max. | 95% |
| Pollutant concentrations | |
| ● SO2 at RH < 60% without condensation | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free |
| connection method | |
| required front connector | Yes |
| Mechanics/material | |
| Enclosure material (front) | |
| ● Plastic | Yes |
| Dimensions | |
| Width | 45 mm |
| Height | 100 mm |
| Depth | 75 mm |
| Weights | |
| Weight, approx. | 180 g |
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