6ES7350-1AH03-0AE0 SIEMENS Counter Module
Siemens 6ES7 350-1AH03-0AE0 SIMATIC S7-300 FM 350-1 Function Module for simple counting tasks, (1) Counter Input Channels for 5V & 24V Incremental Encoders and 24V Initiators, 500kHz Input Frequency (Max.), Isochronous/Measurement Mode