SIMATIC S7-1200, Digital input SM 1221, 8 DI, 24 V DC, Sink/Source6ES7221-1BF32-0XB0 : Digital Input SM 1221, 8DI, 24V DCSKU: 6ES72211BF320XB0Programming support? (optional)500QuantityOnly 9 left in stockAdd to WishlistProduct ConditionBrand NewReturn & Refund Policyas per PA terms & conditionsShipping Infocost extra at the time of delivery