Canon RE-350 Webcam User Manual


 
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Backlight: Off
Function:
Turns off the document lights above the document table. (Also, the Auto-White Balance will be adjusted once.)
Timing of the C-response Packet sent to the PC:
Right after turning off the backlight.
The parameter of the C-response Packet:
$0000 fixed
The maximum operation time (msec):
500 millisecond
Command format:
Header ID number Command Parameter MSH Parameter LSH
$10 $ 8 * $5 9 $ 0 1 $ 0 0
Backlight: On
Function:
Turns on the Backlight under the document table. (Also, the Auto-White Balance will be adjusted once.)
Note: If the Document Lights are already on, and the Backlight is turned on, then the Document Lights will be
turned off automatically and only the backlight will remain on.
Timing of the C-response Packet sent to the PC:
Right after turning on the backlight.
The parameter of the C-response Packet:
$0000 fixed
The maximum operation time (msec):
500 millisecond
Command format:
Header ID number Command Parameter MSH Parameter LSH
$10 $ 8 * $ 5 9 $ 0 $ 0 0
The RE-350 responds in 500 msec with a C-response data packet after the reception of this command, but it will
be still working on the AWB adjustment. (The real AWB operation time will be longer than 500 msec.)