Article Number (Market Facing Number)：6ES72221BH321XB0 | 6ES72221BH321XB0
Product Description：SIMATIC S7-1200, Digital output SM 1222, 16 DO, 24 V DC, sourcing (Sinking Output), NPN transistor 0.5 A
Product family：SM 1222 digital output modules
Product Lifecycle (PLM)：PM300:Active Product