1. First connect the Mitsubishi PLC to the computer with a communication line.
2. Right click on “My Computer” and select “Manage”.
3. In the Computer Management window that pops up, select Device Manager.
4. Check the Com port used by the communication line and remember this port. The example is Com10.
5. Return to the PLC programming software, select the “Online” menu bar and select “Transfer Settings” from the drop-down menu.
6, in the “Transfer Settings” dialog box, you need to set the “Serial USB” interface
7, then set the Com port to Com10 in the pop-up port settings interface.
8. Finally click on “Communication Settings”. If the connection to the PLC is successful, click OK and write the program to PLc.