Canon LV-7490 Brochure

LV-7490  Expand Serial Command Functional Specifications 

                                                                                   

                                                     

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1. 

PC issues commands in format as below: 

CF_  : Header 

COMMAND : Character line 

%1 : Parameter (Character line)   

_ : Space (To separate COMMAND and Parameter) 

2.  The projector decodes the received command and when it is ready to receive the next 

command, it returns the response. 

“000” [CR] : (0x06, 0x0D)    When receiving Functional Execution Command 

“nnn” [CR] : Except “000” , when it is unable to execute command by any specific reason. 

See Error Code Table for details 

3. 

When the received data cannot be decoded, the projector returns “?” [CR] 

 

When setting projector’s total dots to 1344 by Expand Serial Command 

PC → PJ: ”CF_TDOTS_1344” [CR]   

PC ← PJ: “000”[CR] - - - - - - - - - - - Acceptable 

 

1) Functional Execution Command is limited when the projector status is as below. 

However, Status Read Command is effective even under these conditions. 

Projector Status 

Available Functional Execution Command

In Standby 

C00: POWER ON 

Countdown in process 

C00: POWER ON 
(Terminates Countdown) 
C01: POWER OFF 
C02: POWER OFF   
(Terminates Countdown) 

Cooling down in process 

N/A 

Cooling down in process due to Abnormal 
Temperature 

N/A 

Abnormal Temperature 

N/A 

Power Failure 
(For 60 seconds after Power Failure occurred) 

N/A 

Power Save / Cooling down in process 

N/A 

Power Save in process 

C00: POWER ON 
C01: POWER OFF 

Note:) When the projector receives the other command in this above status, it returns 

error code to show the status. 

When the projector receives the following functional execution commands, OSD 

menu is closed except for pop-up menu 

2) When Eco mode is selected in Standby mode of Setting menu and projector is in Standby, 

Functional Execution Commands are invalid.