Hello friends . Mitsubishi PLC series now support USB communication, but sometimes we still have to work with old Mitsubishi PLC series such as FX0N / FX1S / FX1N … or even newer models if you No USB cable available
- The items needed to make cable :
+ COM DB9-Female 
+ Mini DIN 8 Pin 
+ Resistor 500Ω > 1kΩ 
>>> You make cable according to the following diagram
I did and tried to download / upload with the PLC and found everything OK. I wish you success ^^
