Canon LV-S4, Specification, Page: 16 / 19

SERIAL FUNCTIONAL SPECIFICATION Page 15 of 18
8. State Read Command
8.1. Format
1) Computer issues commands fin format as below.
“C
Ｒ”
COMMAND [CR]
Command: 1 character (See Status Read Command Table)
2) When a projector receives the appropriate command, it returns a character line as the
required data.
Required Data [CR]
Required Data: A character line (See Status Read Command Table)
3) When receiving data cannot be decode, the projector returns, ““?” [CR].
8.2. Transfer Example
Get input mode for the projector by basic commands.
COMMAND (current input mode command issue)
PC
!
Projector “C” ”R” ”1” CR
Projector
!
PC ”1” CR
←―――→
Response
(A few ms--1s)
(Shows
Computer is selected)
8.3. Status Read Command
Command “CR0” [CR]
Detail Get the projector status
Acceptable “%1” [CR]
%1
“00” = POWER ON
“80” = STANDBY
“40” = Processing Count Down
“20” = Processing Cooling Down
“10” = Power Failure
“28” = Processing cooling down due to abnormal temperature
“08” = Abnormal Temperature
“88” = normal after recovering abnormal temperature
“24” = Processing Power Save / Cooling Down
“04” = Power Save
Response
Unacceptable “?” [CR]
【
Response Detail
】
1) “00” [CR]
Status: POWER ON
The image is displayed normally.