Mitsubishi Electronics HC5000 manual Password lock commands, Reading command diagram

[Example] When displaying the MENU selection bar. (Figures and symbols enclosed in quotation marks are ASCII codes.):

Sending commands	Status code from	Description
from the PC, etc.	the projector
30 30 72 35 34 0D		Command operating the same
'0' '0' 'r' '5' '4' ' '		as the MENU button
	30 30 72 35 34 0D	Command receipt confirmation
	'0' '0' 'r' '5' '4' ' '	(Command echo back)

6) Password lock commands

The password lock commands control the password lock. The password lock enabling or disabling command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 added to the end of the data code. When the password lock is enabled or disabled successfully, the projector sends a return command comprising the data code, password, and “1” at the end. When enabling or disabling the password lock fails, it sends a return command with “0” at the end. There is no reconfirmation of the password. The password input command is for enabling projection of image when password lock has been set to DISPLAY INPUT. The password input command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 at the end.

ITEM	ASCII	HEX					VALUE
Password lock	PSLOCK	50h	53h	4Ch	4Fh	43h 4Bh	0**** (Disabling), 1**** (DISPLAY INPUT),
enabling/disabling							2**** (MENU ACCESS)
Password input	PASS	50h	41h	53h	53h		****

**** is a 4 to 8-digit password comprised of any figures 1 to 4.

[Example] When enabling the password lock of DISPLAY INPUT (in the case that the password is 123412). (Figures and symbols enclosed in quotation marks are ASCII codes.):

Sending commands		Status code from	Description
from the PC, etc.		the projector
30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 0D			Command for enabling the
'0' '0' 'P' 'S' 'L' 'O' 'C' 'K' '1' '1' '2' '3' '4' '1' '2' '	'		password lock of DISPLAY INPUT
		30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 31 0D	Response informing that the
		'0' '0' 'P' 'S' 'L' 'O' 'C' 'K' '1' '1' '2' '3' '4' '1' '2' '1' ' '	projector succeeded in enabling the
			password lock of DISPLAY INPUT

7) Reading command diagram

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

	ASCII				HEX
	Function	Data (Receive)		Function		Data (Receive)
POWER ON	vP	1	76h	50h		31h
POWER OFF	vP	0	76h	50h		30h
INPUT COMPUTER	vI	r1	76h	49h		72h	31h
INPUT COMPONENT	vI	c1	76h	49h		63h	31h
INPUT HDMI	vI	d1	76h	49h		64h	31h
INPUT DVI	vI	d2	76h	49h		64h	32h
INPUT VIDEO	vI	v1	76h	49h		76h	31h
INPUT S-VIDEO	vI	v2	76h	49h		76h	32h
POWER ON/OFF INPOSSIBLE	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
LAMP OPERATING TIME	vLE	hhhhmm	76h	4Ch	45h	hhhh	mm
(on the LOW mode basis)

The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to the received command its current operating status as the data code and send it back to the PC.

[Example] When checking the currently selected input terminal (when the INPUT VIDEO is being selected). (Figures and symbols enclosed in quotation marks are ASCII codes.):

Sending commands	Status code from	Description
from the PC, etc.	the projector
30 30 76 49 0D		Command for checking the input terminal
'0' '0' 'v' 'I' ' '
	30 30 76 49 76 31 0D	Check result (VIDEO)
	'0' '0' 'v' 'I' 'v' '1' ' '

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