Mitsubishi Electronics UD740U manual Command list, Operation commands, Reading command diagram

4. Command list

4.1Operation commands

The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation commands have no data codes. (When the commands for input select are sent while the splash screen is being displayed, the splash screen is only canceled.)

ITEM	Function		Note
	Character	ASCII
POWER ON	!	21h	This command is invalid for 1 minute after the power is turned off.
POWER OFF	"	22h	This command is invalid for 1 minute after the power is turned on.
INPUT COMPUTER 1	_r1	5Fh 72h 31h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT COMPUTER 2	_r2	5Fh 72h 32h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT VIDEO	_v1	5Fh 76h 31h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT S-VIDEO	_v2	5Fh 76h 32h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT HDMI	_d1	5Fh 64h 31h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT PC LESS	_s1	5Fh 73h 31h	This command will not be executed in Stand-by mode or when the MUTE is executed.
PRESENTATION
INPUT USB DISPLAY	_s2	5Fh 73h 32h	This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT LAN DISPLAY	_n1	5Fh 6Eh 31h	This command will not be executed in Stand-by mode or when the MUTE is executed.

[Example] When setting the input signal to COMPUTER 1. (Values enclosed in quotation marks are ASCII codes.):

Command sent from the PC, etc.	Status code returned	Description
	from the projector
‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’		Command for setting the input signal
00_r1		to COMPUTER 1
	‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’	Command receipt confirmation
	00_r1	(Command echo back)

4.2Reading command diagram

The projectors operating status, such as POWER-ON/OFF and the currently selected input terminal, etc. can be monitored.

ITEM	Character				ASCII
	Function	Data (Receive)		Function		Data (Receive)
POWER ON	vP	1	76h	50h		31h
POWER OFF	vP	0	76h	50h		30h
INPUT COMPUTER 1	vI	r1	76h	49h		72h	31h
INPUT COMPUTER 2	vl	r2	76h	49h		72h	32h
INPUT VIDEO	vl	v1	76h	49h		76h	31h
INPUT S-VIDEO	vl	v2	76h	49h		76h	32h
INPUT HDMI	vl	d1	76h	49h		64h	31h
INPUT PC LESS PRESENTATION	vl	s1	76h	49h		73h	31h
INPUT USB DISPLAY	vl	s2	76h	49h		73h	32h
INPUT LAN DISPLAY	vl	n1	76h	49h		6Eh	31h
POWER ON/OFF IMPOSSIBLE	vPK	0	76h	50h 4Bh		30h
POWER ON/OFF POSSIBLE	vPK	1	76h	50h 4Bh		31h
NO SIGNAL SUPPLIED	vSM	0	76h	53h 4Dh		30h
SIGNAL SUPPLIED	vSM	1	76h	53h 4Dh		31h

Use the following commands to obtain the values of the items in the INFORMATION menu.

ITEM		Function		Data (Receive)
	Character		ASCII
LAMP TIME (LOW)	vLE	76h	4Ch 45h	hhhhmm
RESOLUTION	vRESO	76h	52h 45h 53h 4Fh	HHHHxVVVV

“hhhh” and “mm” represent hours and minutes respectively.

“HHHH” and “VVVV” represent the horizontal and vertical resolutions respectively.

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