Modbus not working at Jetson nano

Hi! I trying communicate between Jetson nano with Wecon plc via Modbus protocol by CH340 hardware. I can connect them! But transmitting and receiving data is not working.

In addition:
The communicating between WINDOW PC with Wecon plc is working ok!
The communicating between Linux PC with Wecon plc is working ok!

where:
Jetson: nano
Modbus library: pymodbus
Window OS: Windows 10 Pro 22H2
Linux OS: Ubuntu 22.04.4 LTS
PLC: LX3V-1212MR-A

Can anyone explain to me why having it? And can help me fix it!
Thank you so much for reading this topic!

Please check ModBus RS485 communication not working - Jetson & Embedded Systems / Jetson Nano - NVIDIA Developer Forums to see if can help.

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.