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A write request example:
(AAA####) where
( starts the command
AAA denotes the command
#### denotes the value to be written
(leading zeros not necessary)
) ends the command
Some commands have ranges, while others are absolute. If a number greater than the maximum range is received, it is
automatically set to the maximum number for that function. If a command is received that is not understood, a "?" is returned. With
absolute settings, "0" is off, 1-9999 is on. The one exception is the Power command, where 0 is off and 1 is on.
To assure the projector can process a command, wait 3 seconds before entering the next command.
Write Command Examples
Function Command Response
Brightness (BRT10) Sets the brightness
to 10
Freeze (FRZ1) or
(FRZ8888)
Freezes the display
Power (PWR0) Turns power off
Power (PWR1) Turns power on
Error Conditions
Not all commands are supported for all projectors. If an unsupported command is issued, the command will be ignored. If a
command is received that is not understood, a ‘?’ character will be returned indicating the command was not understood.
Limitations
The CLI cannot respond to commands coming in at a high-rate. Therefore, a delay must occur between commands to ensure that
the command gets properly executed. To assure the projector can process a command, wait 3 seconds before entering the next
command.
The following table lists the RS-232 command value ranges for controlling the LP720.
Note: Specified commands and values apply to the LP720 with version 3.04 software or higher. The version number of the
software is the first number listed in the upper right corner of the on-screen menu. Command values for LP720s with earlier
software versions may vary. If your LP720 does not have version 3.04 software or higher, go to the Software/Downloads
page to
download and upgrade the projector software.
For absolute command value ranges of 0 - 1, 0 = "Off" and 1-9999 = "On" unless otherwise noted.