Siemens SIMATIC S7-1200 6ES7231-4HD32-0XB0 Analog Input Module
Siemens SIMATIC S7-1200 Analog Input Module with 4 AI channels.
The Siemens 6ES7231-4HD32-0XB0 is a SIMATIC S7-1200 analog input signal module (SM 1231) offering 4 analog inputs. It supports voltage inputs of +/-10 V, +/-5 V, +/-2.5 V, and current inputs of 0-20 mA or 4-20 mA, with a 12-bit plus sign resolution (13-bit ADC).
This module is ideal for process control, monitoring, and data acquisition applications in industries such as manufacturing, automation, and building management systems where precise analog signal measurement is critical. It integrates seamlessly with the S7-1200 PLC family.
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| Type | Analog Input Module |
| Series | SIMATIC S7-1200 |
| Manufacturer | Siemens |
| Model | SM 1231 |
| Channels | 4 AI |
| Input Ranges | +/-10 V, +/-5 V, +/-2.5 V, 0-20 mA, 4-20 mA |
| Resolution | 12 bit+sign (13 bit ADC) |