Siemens 6ES7231-4HF32-0XB0 SIMATIC S7-1200 Analog Input SM 1231
The Siemens 6ES7231-4HF32-0XB0 is a SIMATIC S7-1200 SM 1231 analog input module with 8 differential analog input channels for voltage and current measurement. It supports ±10 V, ±5 V, ±2.5 V, 0–20 mA, and 4–20 mA signals with 12-bit resolution plus sign bit, making it suitable for industrial instrumentation, process monitoring, and machine automation. The module also provides parameterizable integration time, measured-value smoothing, and diagnostic functions for dependable analog signal acquisition.




