Sharp JW Series Connection Manual page 49

Option
To display the setting screen, touch [Device/PLC Settings] from [Peripheral Equipment 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
Switches RI/VCC of the 9th pin.
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.
JW Series Computer Link SIO Driver
Setup Description
49