State Read Command; Format; Transfer Example; Status Read Command - Canon LV-S4 Specification

SERIAL FUNCTIONAL SPECIFICATION

8. State Read Command

8.1. Format

1) Computer issues commands fin format as below.
"CＲ" 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.
PC ! Projector
Projector ! PC

8.3. Status Read Command

Command
Detail
Response
【Response Detail】
1) "00" [CR]
Status: POWER ON
The image is displayed normally.
"C"
"CR0" [CR]
Get the projector status
Acceptable "%1" [CR]
"00" = POWER ON
"80" = STANDBY
"40" = Processing Count Down
"20" = Processing Cooling Down
"10" = Power Failure
%1
"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
Unacceptable "?" [CR]
COMMAND (current input mode command issue)
"R" "1" CR
←―――→
(A few ms--1s)
(Shows
Computer is selected)
Page 15 of 18
"1" CR
Response