Siemens Simatic S7-1500 Digital Input Module DI 16x24V DC HF 16 Kanäle
16 digital input channels for 24 V DC applications. 2 channels can be used as high-speed counters. Input delay adjustable from 0.05 to 20 ms. Input type 3 (IEC 61131) compliance. Diagnostic capabilities and hardware interrupts.