SiemensSimatic S7-1500 6ES7521-7BH00-0AB0

SIMATIC S7-1500, digital input module DI 16x24 V DC AUX: 16 channels in groups of 8: for 24 V encoder: sensor supply 24 V DC: input type 2 (IEC 61131): input delay parameterizable 0.05..20 ms: isochronous mode up to 250 µs: integrated counting function up