SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign (13 bit ADC)6ES7231-4HD32-0XB0 : Analog Input SM 1231, 4AISKU: 6ES72314HD320XB0Programming support? (optional)0/500Quantity*Add to WishlistProduct ConditionBrand NewReturn & Refund Policyas per PA terms & conditionsShipping Infocost extra at the time of delivery