Siemens SM1231 Analog input, 12 bit + signProduct Overview The SIMATIC S7 1200 Analog Input Module SM 1231 provides cost effective analog signal acquisition with 4 channels supporting both voltage and current inputs. Featuring 12 bit + sign resolution (13 bit ADC) and multiple input ranges, this compact module enables precise measurement of analog sensors without additional amplifiers. Key Features 4 Analog Inputs: Compact multi channel voltage and current signal acquisition Flexible Input
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