Article Number (Market Facing Number)：6ES72231BL321XB0 | 6ES72231BL321XB0
Product Description：SIMATIC S7-1200, Digital I/O SM 1223, 16 DI/16 DO, 16 DI 24 V DC; sourcing/sinking input, 16 DO, sourcing (sinking output), NPN transistor 0.5 A
Product family：SM 1223 digital input/output modules
Product Lifecycle (PLM)：PM300:Active Product