Mitsubishi fx2nc-485adp Manual page 19

Option
To display the setting screen, touch [Device/PLC Settings] from [Peripheral Settings]. Touch the External Device
you want to set from the displayed list, and touch [Option].
Setup Items
RI/VCC
GP-Pro EX Device/PLC Connection Manual
You can switch RI/VCC of the 9th pin when you select RS232C for SIO type.
It is necessary to change RI/5V by changeover switch of IPC when connect with IPC.
Please refer to the manual of the IPC for more detail.
Setup Description
19
FX Series Computer Link Driver