Manufacture: Siemens
Type: Analog input Module
MNR: 6ES72314HD300XB0
Family: SIMATIC S7-1200
Product type designation: SM 1231, AI 4×13 bit

Supply voltage: 24 V DC
Current consumption: 0.45 mA
Power loss, typ.: 1.5 W
Number of analog inputs (AI): 4
Input current range: 0 … 20 mA
Input voltage: ±10 V DC
Resolution with overrange (bit including sign), max.: 12 bit; + sign (13 bit ADC)
Degree of protection: IP20
Ambient temperature during operation: 0 … 55°C
Dimensions: 45 x 100 x 75 mm