Справочник Пользователя для Mitsubishi Electronics HD8000

2

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’) fixed.

[Function code] 

A code of each fixed control move.

[Data code]   

A code of each fixed control data (number) and not always indicated.

[End code]   

 (In ASCII code, ‘0Dh’) fixed.

Computer

Projector

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 confirms 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 confirmation
(Command echo back)

 •  The flowchart on the next page shows the recommended operating sequence for your reference to create a 

program.