Panasonic TH-42PR9U, TH-37PR9U Serial Terminals connection, Communication parameters, Command

Connections

SERIAL Terminals connection

The SERIAL terminal is used when the Plasma Display is controlled by a computer.

COMPUTER

SERIAL

RS-232C Straight cable

6 7 8 9

1 2 3 4 5

Pin layout for RS-232C

D-sub 9p

Notes:

•Use the RS-232C cable to connect the computer to the Plasma Display.

•The computer shown is for example purposes only.

•Additional equipment and cables shown are not supplied with this set.

The SERIAL terminal conforms to the RS-232C interface specification, so that the Plasma Display can be controlled by a computer which is connected to this terminal.

The computer will require software which allows the sending and receiving of control data which satisfies the conditions given below. Use a computer application such as programming language software. Refer to the documentation for the computer application for details.

Communication parameters

Signal level	RS-232C compliant
Synchronization method	Asynchronous
Baud rate	9600 bps
Parity	None
Character length	8 bits
Stop bit	1 bit
Flow control	-

RS-232C Conversion cable

D-sub 9-pin female		Details
	2	R X D
	3	T X D
	5	GND
4	• 6	Non use
	7	Shorted
	8
1	• 9	NC

Basic format for control data

The transmission of control data from the computer starts with a STX signal, followed by the command, the parameters, and lastly an ETX signal in that order. If there are no parameters, then the parameter signal does not need to be sent.

STX C1 C2 C3 : P1 P2 P3 P4 P5 ETX

	Colon	Parameter(s)	End
Start	3-character	(1 - 5 bytes)	(03h)
(02h)	command (3 bytes)

Notes:

•If multiple commands are transmitted, be sure to wait for the response for the first command to come from this unit before sending the next command.

•If an incorrect command is sent by mistake, this unit will send an “ER401” command back to the computer.

Command

Command	Parameter	Control details
PON	None	Power ON
POF	None	Power OFF
AVL	**	Volume 00 - 63
AMT	0	Audio MUTE OFF
	1	Audio MUTE ON
IMS	None	Input select (toggle)
	SL1	Slot1 input
	SL2	Slot2 input
	SL3	Slot3 input
	PC1	PC input
DAM	None	Screen mode select (toggle)
	NORM	NORMAL (4 : 3)
	ZOOM	ZOOM
	FULL	FULL
	JUST	JUST
	SELF	Panasonic AUTO

With the power off, this display responds to PON command only.

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