SiemensSimatic S7-1500 6ES7521-1BH00-0AB0

SIMATIC S7-1500, digital input module DI 16x24 V DC HF, 16 channels in groups of 16: of which 2 inputs as counters can be used: input delay 0.05..20 ms: input type 3 (IEC 61131): diagnostics: hardware interrupts: front connector (screw terminals or push-in