InFocus LP1200 appendix Reading command diagram

7) Reading command diagram

Monitor projector operation status. The power ON, OFF and input terminal settings 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 RGB1	vI		r1	76h 49h		72h 31h
INPUT RGB2	vI		r2	76h 49h		72h 32h
INPUT VIDEO1	vI		v1	76h 49h		76h 31h
INPUT VIDEO2	vI		v2	76h 49h		76h 32h
INPUT CARD1	vI		c1	76h 49h		63h31h
INPUT CARD2	vI		c2	76h 49h		63h 32h

When a personal computer sends the command, data code will not be attached. On the othe hand, the projector which has received a command will attach the recent operating status then send.

[Example ] Input was Video 1 when the operating status of the input terminal was confirmed.

Sending commands	Status code from	Meaning
from the PC etc.	projector
30 30 76 49 OD		Commnd for confirm input
'0' '0' 'v' 'I' ' '
	30 30 76 49 76 31 0D	Command (Input is Video)
	'0' '0' 'v' 'I' 'v' '1' ' '	carrired out

8) Picture adjustment commands

The picture adjustment commands execute the picture adjustment setting of this projector. If the personal computer doesn’t send the commands without attaching the data code, the projector which has received the command replays the setting data as data code.

	ASCII	HEX
CONTRAST	P	50h
BRIGHTNESS	Q	51h
TINT	S	53h
COLOR	T	54h

How to set the grade

The data code of CONTRAST and BRIGHTNESS is structured by the setting data of R, setting data of G and setting data of B. Use ASCII letters code to set the grade for setting data. Please refer to the table below for HEX code.

ASCII

'+'

'Å'

'0'

'1'

'2'

'3'

'4'

'5'

'6'

'7'

'8'

'9'

HEX

2Bh

2Dh

30h

31h

32h

33h

34h

35h

36h

37h

38h

39h

[Example 1] Set the setting data of R to +10, the setting data of G to 0 and the setting data of B to -5.

Sending commands		Status code from	Meaning
from the PC etc.		projector
30 30 50 2B 31 30 2B 30 30 2D 30 35 0D			Command for setting the
'0' '0' 'P' '+' '1' '0' '+' '0' '0' '-' '0' '5' '	'		picture control
		30 30 50 2B 31 30 2B 30 30 2D 30 35 0D	Command received
		'0' '0' 'P' '+' '1' '0' '+' '0' '0' '-' '0' '5' ' '	(Command echo back)

[Example 2] The TINT was set to +30 when the setting status was confirmed.

Sending commands	Status code from	Meaning
from the PC etc.	projector
30 30 53 0D		Command for confirm
'0' '0' 'S' ' '		setting of TINT
	30 30 53 2B 33 30 0D	Command (setting of TINT
	'0' '0' 'S' '+' '3' '0' ' '	is +30) carried out

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