Hello

just search the rotation encoder with the modbus RTU output and first with tcp or rs485 and use the TCP / RS485 converter and then go from the logger to the first position on the encoder.
for example: https://www.kuebler.com/pdf/?F5868-F5888_Modbus_en.pd
Frantam

New question published by Abdul Malik is split to a separate thread with the subject How to control shutters using LOGO + Stepper Motor?.

Best regards
Jen_Moderator