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 |
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ASCII |
| ‘30h’ 30h’ | Function |
| Data | ‘0Dh’ |
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Character |
| 00 | Function |
| Data |
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[Address code] | 00 (In ASCII code, ‘30h’ ‘30h’) fixed. |
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[Function code] | A code of each fixed control move. |
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[Data code] | A code of each fixed control data (number) and not always indicated. | ||||||
[End code] | (In ASCII code, ‘0Dh’) fixed. |
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3. Control sequence
Computer |
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| 1 | Send the command from the |
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| The projector will send a return | If the projector does not receive commands |
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| command after it receives an end | normally, that is, if the projector is not connected |
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| 2 | code. | physically or unable to receive commands, it does |
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| The projector sends out a return command within |
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| one second at the latest. |
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| The personal computer checks the | Although the projector receives the commands, it | |
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| 3 | command and confirms if the sent | in some cases does not execute the commands. |
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| command has been received or not. |
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| Use the check command to see | This projector sends various codes other than the |
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| 4 | if the projector has executed the | return code. When having a control sequence by |
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•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
[Example] When turning the power ON. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands |
| Status code | Description |
from the PC, etc. |
| from the projector | |
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‘30’ ‘30’ ‘21’ ‘0D’ |
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| Command for POWER ON |
00! |
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| ‘30’ ‘30’ ‘21’ ‘0D’ | Command receipt confirmation | |
| 00! |
| (Command echo back) |
•The flowchart on the next page shows the recommended operating sequence for your reference to create a program.
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