Article Number (Market Facing Number)：6ES73211CH000AA0 | 6ES73211CH000AA0
Product Description：SIMATIC S7-300, Digital input SM 321, isolated, 16 DI, 24-48 V AC/DC with single rooting, 1x 40-pole
Product family：SM 321 digital input modules
Product Lifecycle (PLM)：PM400:Phase Out Started