Siemens 6ES7222-1BH32-1XB0 Digital Output Module. Siemens 6ES7222-1BH32-1XB0 is the exact manufacturer order number for a digital output module in the SIMATIC S7-1200 portfolio. Siemens describes this exact reference as: SIMATIC S7-1200, Digital output SM 1222, 16 DO, 24 V DC, sourcing (Sinking Output), NPN transistor 0.5 A. The verified manufacturer lifecycle record is PM300: Active Product.