2
2. Control command diagram
The command consists of the address code, function code, data code, and end code. The length of the command
varies among the functions.
Address code Function code Data code End code
ASCII ‘30h’ 30h’ Function Data ‘0Dh’
Character 00 Function Data
[Address code] 00 (In ASCII code, ‘30h’ ‘30h’) fi xed.
[Function code] A code of each fi xed control move.
[Data code] A code of each fi xed control data (number) and not always indicated.
[End code] (In ASCII code, ‘0Dh’) fi xed.
3. Control sequence
Computer Projecto
1
2
3
4
Sequence Note
1
Send the command from the
personal computer to the projector.
2
The projector will send a return
command after it receives an end
code.
If the projector does not receive commands
normally, that is, if the projector is not connected
physically or unable to receive commands, it does
not send out a return command.
The projector sends out a return command within
one second at the latest.
3
The personal computer checks the
command and confi rms if the sent
command has been received or not.
Although the projector receives the commands, it
in some cases does not execute the commands.
4
Use the check command to see
if the projector has executed the
command.
This projector sends various codes other than the
return code. When having a control sequence by
RS-232C, reject other codes from the personal
computer.
• Although the projector sends out the return command, the command may not take effect in the following
cases.
(1) During signal switching
(2) In the process of the auto position
(3) After the power is turned on.
The projector receives no commands for about 20 seconds (or for 2 minutes at the longest if the lamp
does not light up promptly as the life is expiring.)
• When sending commands successively, wait to receive the return command of the current command before
sending a next command.
• The projector may not receive a command when the splash screen is being displayed immediately after turn-
ing on the power. Use command “00r10” to cancel the splash screen.
• While using the LAN terminals, the LAN functions take precedence.
• For the LAN terminals, the same commands as those for connecting with the TCP/IP (port number 63007) are
available. Note, however, that the response becomes slightly slower than when using the RS-232C terminals.
[Example] When turning the power ON. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands
from the PC, etc.
Status code
from the projector
Description
‘30’ ‘30’ ‘21’ ‘0D’
00!
Command for POWER ON
‘30’ ‘30’ ‘21’ ‘0D’
00!
Command receipt confi rmation
(Command echo back)
• The fl owchart on the next page shows the recommended operating sequence for your reference to create a
program.
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