Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 Analog Input SB 1231
The Siemens 6ES7231-4HA30-0XB0 is a SIMATIC S7-1200 SB 1231 analog input signal board designed to expand the analog input capability of compatible S7-1200 CPUs. It provides 4 analog input channels for standard 0–10 V, ±10 V, 0–20 mA, and 4–20 mA signals, with 12-bit resolution plus sign. Its compact design makes it suitable for industrial instrumentation, process monitoring, machine automation, and applications requiring additional analog signal acquisition.


