How to set the COM port communication parameters of LX5V?
In "Project management" → "Parameters" → "PLC parameter "→"COM1settings, COM2settings ".
Use PROCOTOL instruction to set the protocol corresponding to the communication port; use PORTPARA instruction to set the serial port parameters corresponding to the communication port, use STATION instruction to set the station number corresponding to the communication port.
Assign a value directly to the corresponding special address (see"Communication instructions" in “LX5V Programming Manual”).