Article Number (Market Facing Number)：6ES7521-1BH50-0AA0
Product Description：SIMATIC S7-1500, digital input module DI 16×24 V DC BA, sourcing input; 16 channels in groups of 16; Input delay 3.2 ms; Input type 3 (IEC 61131): Front connector (screw terminals or push-in) to be ordered separately
Product family：SM 521 digital input modules
Product Lifecycle (PLM)：PM300:Active Product