Emulate Touch Output
When you touch the current screen on the display unit with RGB input, you can select if you want to output touch coordinates to external devices over serial communication lines.
28.14 Computer's Mouse Cursor Operations from the Display Unit
Port
Select a port to perform the touch output from [COM1], [COM2] or [USB/SIO(RS232C)].
When specifying the port number to be used, 
mark ("Duplicate Port") is displayed.
Speed
Select a communication speed from [2400], [4800], [9600], [19200], [38400], [57600] or [115200].
Type
Select the communication method from [RS232C], [RS422/485 (2wire)], or [RS422/485 (4wire)].
Data Length
Choose the data length from [7 bit] or [8 bit].
Parity
Select the parity bit from [None], [Odd], or [Even].
Stop Bit
Select the stop bit from either [1] or [2].
Flow Control
Select the flow control from [None], [RTS/CTS], or [ER (DTR/CTS)].
When [Port] = [USB/SIO(RS232C)], [Flow Control] is [None].