Control Command Diagram; Control Sequence - Mitsubishi Electric XL6500LU Control Manual

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
ASCII '30h' 30h'
Character
[Address code]
[Function code]
[Data code]
[End code]

3. Control sequence

Computer Projector
1
2
3
4
• 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.
'30' '30' '21' '0D'
00!
• The flowchart on the next page shows the recommended operating sequence for your reference to create a
program.
Function code
Function
00 Function
00 (In ASCII code, '30h' '30h') fixed.
A code of each fixed control move.
A code of each fixed control data (number) and not always indicated.
(In ASCII code, '0Dh') fixed.
Sequence
Send the command from the
1
personal computer to the projector.
The projector will send a return
command after it receives an end
code.
2
The personal computer checks the
3 command and confirms if the sent
command has been received or not.
Use the check command to see
if the projector has executed the
4
command.
'30' '30' '21' '0D'
00!
Data code End code
Data
Data
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.
Although the projector receives the commands, it
in some cases does not execute the commands.
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.
Status code
from the projector
2
'0Dh'
Note
Description
Command for POWER ON
Command receipt confirmation
(Command echo back)