Sharp PN-T321 Controlling the Monitor with a PC RS-232C, PC connection, Communication procedure

Controlling the Monitor with a PC (RS-232C)

You can control this monitor from a PC via RS-232C (COM port) on the PC.

PC connection

Connect with RS-232 straight cable between the PC’s COM port (RS-232C connector) and the RS-232C input terminal on the monitor.

Communication procedure

nCommand format

When a command is sent from the PC to the monitor, the monitor operates according to the received command and sends a response message to the PC.

								Return code
C1		C2	C3	C4	P1	P2	P3	P4
	Command field					Parameter field
		(4 prescribed			(4 character string comprised of:
alphanumerical characters)						0-9, +, -, space, ?)

RS-232C input terminal

PC

To COM port

RS-232 straight cable (commercially available)

Communication conditions

Set the RS-232C communication settings on the PC to match the monitor’s communication settings as follows:

Baud rate	9600 bps	Stop bit	1 bit
Data length	8 bits	Flow control	None
Parity bit	None

Example: VOLM0030

VOLM 30

*Be sure to input 4 characters for the parameter. Pad with spaces (“ ”) if necessary.

(“ ” is a return code (0DH, 0AH or 0DH)) Wrong : VOLM30

Right : VOLM 30

If a command has “R” listed for “DIRECTION” in the “RS-232C command table” on page 24, the current value can be returned by using “?” as the parameter.

Example:

VOLM ? ? ? ?	←	From PC to monitor (How much
		is current volume setting?).
30	←	From monitor to PC (Current
		volume setting: 30).

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