Elmo HV-7000SX - Manual (Page 34)

Note: " " in the data column means that SPACE [20H] should be transmitted twice.
Function Command Parameter Data Comments
0 (VGA)
1 (SVGA)
2 (XGA)
3 (SXGA)
0 (OFF)
1 (90
°)
2 (180
°)
3 (270
°)
RS
RO
Resolution
selection Command to switch the resolution.
Image rotation Command to rotate the image.
0
0
2
0
DF
QS
QR
0 (OFF)
1 (ON) SA
0 (OFF)
1 (ON) SC
Default Command to reset to the initialized mode.
Status request Command to inquire the status of the equipment.
ROM version Command to refer to the ROM version.
Acknowledge
check Command to select the command acknowledgement for each
operation command.
Add CR
command Command to add CR [0Dh] to the end of the acknowledge data
Default is OFF.
0 (1.0)
1 (0.6) GM Gamma
selection Command to switch the gamma setting value of the image.
0 (OFF)
1 (ON) AP Aparture
selection Command to switch the sharpness (edge effect) of the image.
33
Data format specifications
This command is executed in the form of 1-command/1 packet. The next command is not accepted until the previous
processing is completed.
·
The communication command always starts with STX (Start of Text), and ends with ETX (End of Text).
· If the communication format or command name is wrong, NAK (Negative Acknowledgement) will be sent from
the Presenter as a result of failing to receive correctly.
· When the communication format is correctly received, the Presenter sends ACK (Normal Acknowledgement).
Transmission Command (PC Visual Presenter)
Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as follows:
S
T
X
E
T
X
Command (PC)
( Visual Presenter ) ACK
Data Parameter