I have a very strange problem happens on my newly purchased raspberry PI 4B+. Codesys program always goes error several seconds after its service(codesyscontrol) restarted. It keeps going to the error status even I restart codesys service by shell command. “sudo systemctl restart codesyscontrol” I’ve tested the same SD card on another old PI 4B+ with the same 4GB RAM. It works fine without any problem. Is there any log files or config files I can supply so that you can help me on this problem?
Why I cannot find the unit ID on "Tab ‘ModbusTCP Slave Device - General’"? Is it because I'm using the latest version of the modbus TCP slave library? Without unit ID setting available, I have to set device ID to 255 when using modscan or other test softwares. Or is there any to ignore the unit ID for the modbus TCP slave device?