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POWER PROJECTOR LV-7290
LV-7295
LV-7390
LV-8225
LV-7391
LV-7296
BASIC SERIAL COMMAND SPECIFICATIONS
Revision 1
© 2011 CANON INC. YT1-1436-000
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
－ CONTENTS －
1. Overview ....................................................................................................................... 3
2. Serial Interface Specifications .................................................................................... 3
2.1. Transfer Specifications ........................................................................................ 3
2.2. Connection ............................................................................................................ 3
3. Notes for Communication ........................................................................................... 4
4. Functional Execution Command Table ...................................................................... 5
5. Status Read Command Table ..................................................................................... 7
6. Functional Execution Command ................................................................................ 8
6.1. Format ................................................................................................................... 8
6.2. Command Pipelining ............................................................................................ 8
6.3. Transfer Example.................................................................................................. 8
6.4. Operation Requirements ...................................................................................... 9
6.5. POWER ON Command ....................................................................................... 10
6.6. POWER OFF Command (Quick Power OFF) .................................................... 10
6.7. POWER OFF Command ..................................................................................... 10
6.8. Computer 1 Command ....................................................................................... 10
6.9. Computer 2 Command ....................................................................................... 10
6.10. Video Command ................................................................................................. 11
6.11. VOLUME + Command ........................................................................................ 11
6.12. VOLUME – Command ......................................................................................... 11
6.13. AUDIO MUTE ON Command .............................................................................. 11
6.14. AUDIO MUTE OFF Command ............................................................................ 11
6.15. VIDEO MUTE ON Command .............................................................................. 12
6.16. VIDEO MUTE OFF Command ............................................................................ 12
6.17. Screen Normal size Command .......................................................................... 12
6.18. Screen Wide size Command .............................................................................. 12
6.19. Image Standard Command ................................................................................ 12
6.20. Image Real Command ........................................................................................ 12
6.21. Image Cinema Command ................................................................................... 13
6.22. Image1 Command ............................................................................................... 13
6.23. Image2 Command ............................................................................................... 13
6.24. Image3 Command ............................................................................................... 13
6.25. Image4 Command ............................................................................................... 13
6.26. Image Blackboard (Green) Command .............................................................. 13
6.27. Image Dynamic Command ................................................................................. 13
6.28. MENU ON Command .......................................................................................... 14
6.29. MENU OFF Command ........................................................................................ 14
6.30. DISPLAY CLEAR Command .............................................................................. 14
6.31. BRIGHTNESS + Command ................................................................................ 14
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
6.32. BRIGHTNESS – Command ................................................................................ 14
6.33. IMAGE (Toggle) Command ................................................................................ 14
6.34. Direct on Setting Command .............................................................................. 15
6.35. Direct on Cancel Command ............................................................................... 15
6.36. Power Management Ready Command .............................................................. 15
6.37. Power Management OFF Command ................................................................. 15
6.38. Power Management Shut down Command ...................................................... 15
6.39. D.ZOOM + Command ......................................................................................... 15
6.40. D.ZOOM – Command .......................................................................................... 16
6.41. Computer1 S-Video Command .......................................................................... 16
6.42. Image Colorboard Command ............................................................................ 16
6.43. POINTER RIGHT Command ............................................................................... 16
6.44. POINTER LEFT Command ................................................................................. 16
6.45. POINTER UP Command ..................................................................................... 16
6.46. POINTER DOWN Command ............................................................................... 17
6.47. ENTER Command ............................................................................................... 17
6.48. FREEZE ON Command ...................................................................................... 17
6.49. FREEZE OFF Command ..................................................................................... 17
6.50. Computer 1 Analog RGB Command ................................................................. 17
6.51. Computer 1 Scart Command ............................................................................. 17
6.52. Computer 1 Component Command .................................................................. 18
6.53. AUTO PC ADJ. Command .................................................................................. 18
6.54. PRESENTATION TIMER Command ................................................................... 18
6.55. PRESENTATION TIMER (Exit) Command ......................................................... 18
6.56. KEYSTONE ↑Command ................................................................................... 18
6.57. KEYSTONE ↓Command ................................................................................... 18
7. Status Read Command.............................................................................................. 19
7.1. Format ................................................................................................................. 19
7.2. Transfer Example................................................................................................ 19
7.3. Operation Requirements .................................................................................... 19
7.4. Status Read Command ...................................................................................... 19
7.5. Input Mode Read Command .............................................................................. 22
7.6. Lamp Time Read Command .............................................................................. 22
7.7. Setting Read Command ..................................................................................... 22
7.8. Temp Read Command ........................................................................................ 22
7.9. Lamp Mode Read Command ............................................................................. 23
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
1. Overview
1.1. These specifications define projector control commands for LV-7290/ LV-7295/LV-7390/LV-8225
/LV-7391/LV-7296.
1.2. The projector control commands are used to remotely control a projector through RS-232C from a
computer.
2. Serial Interface Specifications
2.1. Transfer Specifications
Item Specifications
Synchronous system Asynchronous
Transmission Speed 9600 / 19200
Data Length 8 bit
Parity N/A
Stop Bit 1
Flow Control N/A
1) Transmission speed: initial setting value is 19200.
2) Transmission speed can be changed in service mode.
2.2. Connection
Dedicated serial cable must be used for connection to a computer and a projector.
PC Projector
COM 1 Control Port
(D-Sub 9 Pin) (D-Sub 9 Pin)
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
3. Notes for Communication
1. The projector control command is defined as one command/one line that starts with “C” and ends
with carriage return (0x0D).
2. There are two types of Commands: Functional Execution Commands and Status Read
Commands.
Example of Functional Execution Command: “C05” [CR]
Example of Status Read Command: “CR0” [CR]
3. When it takes more than one second to receive one command, it does not operate.
The information of buffer is cleared when it takes more than one second to receive carriage return
(0x0D) after the projector receives the first data “C”.
4. For Command pipelining, wait for the interval of 100ms after receiving a response.
More than 100ms
Command
PC → Projector “C” “0” “7” CR
Next Command
Projector → PC ACK CR
Response
(A few ms ～ 5s)
3.4.1. When a command is issued before receiving a response, the function is not executed
properly.
3.4.2. Except for when there is no Response for more than 5 seconds.
5. It takes about 5 seconds for internal initialization after plugging in AC power. During this time, it
cannot process commands. Do not issue any command.
6. The number of characters of response to Status Read Commands depends on commands.
Please see [7. Status Read Commands].
7. Characters for commands must be Capital (A - Z).
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
4. Functional Execution Command Table
Command Item Command Item
C00 POWER ON C20 BRIGHTNESS +
C01
C02 POWER OFF C22 ―――
C03 ――― C23 ―――
C04 ――― C24 ―――
C05 Computer 1 C25 ―――
C06 Computer 2 C26 ―――
C07 Video C27 IMAGE (Toggle)
C08 ――― C28 Direct on Enable
C09 VOLUME + C29 Direct on Disable
C0A VOLUME - C2A Power Management Ready
C0B AUDIO MUTE ON C2B Power Management OFF
C0C AUDIO MUTE OFF C2C ―――
C0D VIDEO MUTE ON C2D ―――
C0E VIDEO MUTE OFF C2E Power Management Shut down
C0F
C10
C11 Image Standard C31 D.ZOOM -
C12 Image Real C32 ―――
C13 Image Cinema C33 ―――
C14 Image 1 C34 Computer 1 S-video
C15 Image 2 C35 ―――
C16 Image 3 C36 ―――
C17 Image 4 C37 ―――
C18 Blackboard C38 ―――
C19 Dynamic C39 Image Colorboard
C1A ――― C3A POINTER RIGHT
C1B ――― C3B POINTER LEFT
C1C MENU ON C3C POINTER UP
C1D MENU OFF C3D POINTER DOWN
C1E DISPLAY CLEAR C3E ―――
C1F ――― C3F ENTER
POWER OFF
(Quick Power OFF)
Screen Normal size(4：3)
Screen Wide size(16：9)
C21 BRIGHTNESS -
C2F ―――
C30 D.ZOOM +
――― means no function.
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
Command Item Command Item
C40 ――― C80 ―――
C41 ――― C81 ―――
C42 ――― C82 ―――
C43 FREEZE ON C83 ―――
C44 FREEZE OFF C84 ―――
C45 ――― C85 ―――
C46 ――― C86 ―――
C47 ――― C87 ―――
C48 ――― C88 ―――
C49 ――― C89 Auto PC ADJ.
C4A ――― C8A PRESENTATION TIMER
C4B ――― C8B PRESENTATION TIMER(Exit)
C4C
C4D ――― C8D ―――
C4E ――― C8E KEYSTONE ↑
C4F ――― C8F KEYSTONE ↓
C50 Computer 1 Analog RGB C90 ―――
C51 Computer 1 Scart C91 ―――
C52 ――― C92 ―――
C53 ――― C93 ―――
C54 Computer 1 Component C94 ―――
――― C8C ―――
――― means no function.
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
5. Status Read Command Table
Command
CR0 Status Read
CR1 Input Mode Read
CR2 ―――
CR3 (Corresponding) Lamp Time Read
CR4 Setting Read
CR5 ―――
CR6 Temp Read
CR7 Lamp Mode Read
Item Memo
――― means no function.
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
6. Functional Execution Command
6.1. Format
6.1.1 PC issues a command in format as below.
“C” COMMAND [CR]
Command: two characters (See Basic Functional Execution Command Table)
A projector changes received data to decode and returns a result after being
ready to receive next command.
[ACK]［CR］：(0x06、0x0D)When received Functional Execution Commands.
6.1.2 “？”［CR］：When the received data cannot be decoded.
6.2. Command Pipelining
When some functions need the command pipelining, the performance is the same as that of the
remote control;
6.2.1. System: issues any command every 100 ms.
6.2.2. When receiving the appropriate command, the function is executed for 120 ms from the
moment.
6.2.3. When receiving the same command continuously within 120 ms, the function is executed
for another 120 ms from the moment.
6.2.4. When there is no incoming command after 120 ms, the execution of pipelining is stopped.
6.2.5. When the projector receives other incoming commands within 120ms, the execution of
pipelining is stopped.
6.3. Transfer Example
Switch the projector to video mode with Basic Command.
Command
PC → Projector “C” “0” “7” CR
Projector → PC
Processing
(A few ms ～ 5s)
ACK CR
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
6.4. Operation Requirements
1) When the projector’s status is any of below, Functional Execution Commands are limited.
Projector Status Available Functional Execution Commands
In Standby C00：POWER ON
C00：POWER ON → Countdown is terminated
Countdown in process
Cooling Down in process NONE (No Execution)
Cooling Down due to Abnormal
Temperature
Abnormal Temperature Status NONE (No Execution)
Abnormal Power Status NONE (No Execution)
Power Save / Cooling Down in process NONE (No Execution)
Power Save Status
Auto input : On1/On2 setting
Note) When the status is as above, even if the projector receives other commands,
it returns [ACK] [CR].
2) When Eco mode is selected in Standby mode of Setting menu and projector is in Standby,
C01：POWER OFF
C02：POWER OFF → Countdown is terminated
NONE (No Execution)
C00：POWER ON
C01：POWER OFF
Although transmit Input source commands, Auto
input does not operate.
Functional Execution Commands are invalid.
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6.5. POWER ON Command
Command “C00” [CR]
Power ON
Detail
Response
When already Power is ON, nothing is done.
When sending this command during processing Countdown, Countdown is
terminated.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.6. POWER OFF Command (Quick Power OFF)
Command “C01” [CR]
Detail
Response
Power OFF (Standby)
When Power is OFF with POWER button of the projector and remote control,
“Power OFF?” is displayed. However, as soon as this command is sent, Quick
Power OFF is executed.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.7. POWER OFF Command
Command “C02” [CR]
Power OFF (Standby).
The command operates the same Power OFF function as POWER button of the
Detail
Response
projector and remote control.
Once this command is sent, “Power OFF?” is displayed. If this command is sent
again while it is displayed, Power OFF is executed.
When sending this command during Countdown, Countdown is terminated.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.8. Computer 1 Command
Command “C05” [CR]
Select Computer 1 Input
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Input search is set to On1 or On2.
Acceptable [ACK] [CR]
Unacceptable
6.9. Computer 2 Command
Command “C06” [CR]
Select Computer2 Input
Note 1) Although projector returns “OK”, Auto input is not executed with this
Detail
Response
command while Input search is set to On1 or On2.
Note 2) When “Monitor out” is selected in Terminal menu, projector returns “OK”
and displays “Monitor out” on the screen.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
“？”[CR]
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
6.10. Video Command
Command “C07” [CR]
Select Video Input
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Input search is set to On1 or On2/
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.11. VOLUME + Command
Command “C09” [CR]
Volume Up.
Detail
Response
This command operates the same way as “VOLUME+” button of the projector and
remote control.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.12. VOLUME – Command
Command “C0A” [CR]
Volum e Down
Detail
Response
This command operates the same way as “VOLUME-” button of the projector and
remote control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.13. AUDIO MUTE ON Command
Command “C0B” [CR]
Sound Mute ON.
Detail
Response
This command works the same way as “MUTE” button of the remote control for
Mute ON, but does not work for Mute OFF.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.14. AUDIO MUTE OFF Command
Command “C0C” [CR]
Sound Mute OFF.
Detail
Response
This command works the same way as “MUTE” button of the remote control for
Mute OFF, but does not work for Mute ON.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
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6.15. VIDEO MUTE ON Command
Command “C0D”[CR]
Video Mute ON.
Detail
Response
This command works the same way as “BLANK” button of the remote control for
Blank ON, but does not work for Blank OFF.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.16. VIDEO MUTE OFF Command
Command “C0E” [CR]
Video Mute OFF.
Detail
Response
This command works the same way as “BLANK” button of remote control for
Blank OFF, but does not work for Blank ON.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.17. Screen Normal size Command
Command “C0F” [CR]
Detail
Response
Set Aspect mode to Normal.
This command is invalid while D.Zoom is in operation.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.18. Screen Wide size Command
Command “C10” [CR]
Detail
Response
Set Aspect mode to 16:9.
This command is invalid while D.Zoom is in operation.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.19. Image Standard Command
Command “C11” [CR]
Detail Set image to Standard mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.20. Image Real Command
Command “C12” [CR]
Detail Set image to High contrast mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
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6.21. Image Cinema Command
Command “C13” [CR]
Detail Set image to Cinema mode.
Response
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.22. Image1 Command
Command “C14” [CR]
Detail Set image to User 1 mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.23. Image2 Command
Command “C15” [CR]
Detail Set image to User 2 mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.24. Image3 Command
Command “C16” [CR]
Detail Set image to User 3 mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.25. Image4 Command
Command “C17” [CR]
Detail Set image to User 4 mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.26. Image Blackboard (Green) Command
Command “C18” [CR]
Detail Set image to Blackboard (Green) mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.27. Image Dynamic Command
Command “C19” [CR]
Detail Set image to Presentation mode.
Response
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
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6.28. MENU ON Command
Command “C1C” [CR]
Detail Display On-Screen Display Menu.
Response
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.29. MENU OFF Command
Command “C1D” [CR]
Detail Hide On-Screen Display Menu.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.30. DISPLAY CLEAR Command
Command “C1E” [CR]
Detail
Response
Hide On-Screen Display.
Hide On-Screen Display unconditionally.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.31. BRIGHTNESS + Command
Command “C20” [CR]
Detail Brightness of User Control +1.
Response
Acceptable [ACK] [CR]
Unacceptable
6.32. BRIGHTNESS – Command
Command “C21” [CR]
Detail Brightness of User Control –1.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.33. IMAGE (Toggle) Command
Command “C27”[CR]
Detail
Response
Switch Image Setting status.
This command works the same way as “IMAGE” button of the remote control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
“？”[CR]
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6.34. Direct on Setting Command
Command “C28” [CR]
Detail
Response
Enable Direct power on function.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.35. Direct on Cancel Command
Command “C29” [CR]
Detail
Response
Cancel Direct power on function.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.36. Power Management Ready Command
Command “C2A” [CR]
Detail
Response
Set Power management mode to Standby mode.
This status is stored in EEPROM and retained regardless of Power ON/OFF.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.37. Power Management OFF Command
Command “C2B” [CR]
Detail
Response
Set Power management mode to OFF mode.
This status is stored in EEPROM and retained regardless of Power ON/OFF.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.38. Power Management Shut down Command
Command “C2E” [CR]
Detail
Response
Set Power management mode to Exit mode.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.39. D.ZOOM + Command
Command “C30” [CR]
Detail
Response
Enter Digital Zoom mode and expand image size.
This command works the same way as “D.ZOOM +” button of the remote control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
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6.40. D.ZOOM – Command
Command “C31” [CR]
Detail
Response
Enter Digital Zoom mode and reduce image size.
This command works the same as “D.ZOOM -” button of the remote control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.41. Computer1 S-Video Command
Command “C34” [CR]
Select S-Video of Computer1 input.
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Auto input is set to On1 or On2,
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.42. Image Colorboard Command
Command “C39” [CR]
Detail Set image to Colorboard mode.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.43. POINTER RIGHT Command
Command “C3A” [CR]
Move the Pointer of On-Screen Display Menu to the right.
Detail
Response
This command works differently from the pointer “>” of the projector and remote
control, and has no function of Volume +.
Acceptable [ACK] [CR]
Unacceptable
6.44. POINTER LEFT Command
Command “C3B” [CR]
Move the Pointer of On-Screen Display Menu to the left.
Detail
Response
This command works differently from the pointer “<” of the projector and remote
control, and has no function of Volume -.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.45. POINTER UP Command
Command “C3C” [CR]
Detail
Response
Move up the Pointer of On-Screen Display Menu.
This command works the same way as the pointer “▲” of the projector.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
“？”[CR]
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6.46. POINTER DOWN Command
Command “C3D” [CR]
Detail
Response
Move down the Pointer of On-Screen Display Menu.
This command works the same way as the pointer “▼” of the projector.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.47. ENTER Command
Command “C3F” [CR]
Detail
Response
This command works the same way as “OK” button of the projector and remote
control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.48. FREEZE ON Command
Command “C43” [CR]
Freeze on-screen image.
Detail
Response
This command works the same way as “FREEZE” button of the remote control for
Freeze ON, but does not work for Freeze OFF.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.49. FREEZE OFF Command
Command “C44” [CR]
Cancel Freeze mode.
Detail
Response
This command works the same way as “FREEZE” button of the remote control for
Freeze OFF, but does not work for Freeze ON.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.50. Computer 1 Analog RGB Command
Command “C50” [CR]
Select Analog RGB input in Computer 1.
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Input Auto input set to On1 or On2.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.51. Computer 1 Scart Command
Command “C51” [CR]
Select Scart input in Computer 1
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Auto input is set to On1 or On2.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
6.52. Computer 1 Component Command
Command “C54” [CR]
Select Component input in Computer 1.
Detail
Response
Although projector returns “OK”, Auto input is not executed with this command
while Auto input is set to On1 or On2.
Acceptable [ACK] [CR]
Unacceptable
“？”[CR]
6.53. AUTO PC ADJ. Command
Command “C89” [CR]
Execute Auto PC function.
Detail
Response
This command operates the same as “AUTO PC” of main menu.
Projector suspends Auto PC operation when receiving this command another
time.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.54. PRESENTATION TIMER Command
Command “C8A” [CR]
Detail
Response
Execute P- timer.
This command works the same way as “P-TIMER” button of the remote control.
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.55. PRESENTATION TIMER (Exit) Command
Command “C8B” [CR]
Exit P- timer menu.
Detail
Response
This command works the same as holding on the “P-TIMER” button of the remote
control
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.56. KEYSTONE ↑Command
Command “C8E” [CR]
Detail Correct keystone distortion by reducing upper part of image.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
6.57. KEYSTONE ↓Command
Command “C8F” [CR]
Detail Correct keystone distortion by reducing down part of image.
Response
Acceptable [ACK] [CR]
Unacceptable “？”[CR]
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7. Status Read Command
7.1. Format
7.1.1. PC issues commands in format as below;
“CR” Command [CR]
Command：1 character(See Basic Status Read Command Table)
7.1.2. 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 Basic Status Read Command Table)
7.1.3. When the received data cannot be decoded, the projector returns “?” [CR].
7.2. Transfer Example
Get input mode for projector with basic commands
Command(issues a command of getting current input mode)
PC → Projector “C” “R” “1” “CR”
Projector → PC “1” “CR”
Processing Response
(A few ms～1s)
Shows Computer 1 is selected)
(
7.3. Operation Requirements
When Eco mode is selected in Standby mode of Setting menu and projector is in Standby, Status
Read Commands are invalid.
7.4. Status Read Command
Command “CR0” [CR]
Detail Get the projector’s operating status
Acceptable “%1” [CR]
”00” = Power ON
“80” = Standby
“40” = Countdown in process
“20” = Cooling Down in process
“10” = Power Failure
Response
%1
Unacceptable “?” [CR]
“28” = Cooling Down in process due to Temperature Anomaly
“88” = Coming back after Temperature Anomaly
“24” = Power Save/Cooling Down in process
“04” = Power Save
“21” = Cooling Down is in process after Power off due to lamp
failure
“81” = Standby after Cooling Down due to lamp failure
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[Details of Response]
“00” [CR]
Status : Power ON
Normal image is on the screen.
“80” [CR]
Status: Standby
When the status is Standby, Status Read Commands are always acceptable, but
Functional Execution Commands are not acceptable except POWER ON Command.
“40” [CR]
Status: Countdown in process
When “Display” in Setting Menu is ON and POWER ON is executed, it starts
Countdown.
When “Display” in Setting Menu is OFF, processing Countdown is not executed and the
status quickly moves to Power ON.
“20” [CR]
“10” [CR]
“28” [CR]
Status: Cooling Down in process
When the status is Power ON, and POWER OFF Command (“C01”[CR]) is executed, it
moves to Cooling Down status.
This status automatically moves to Standby after lamp turns off and the fan spin finishes
after about 90 seconds. The fan spin time depends on a model.
This function is used to cool down the lamps and other optical parts and is quite
important for projector’s reliability.
During this time, Functional Execution Commands are invalid.
Status: Power Failure
When the power supply voltage inside the projector reaches abnormal status, the
projector is automatically turned off. The projector returns “10”[CR], which shows it
moves to Power OFF status due to power failure. Fan also stops unlike Cooling Down
status.
Status: Cooling Down in process due to Temperature Anomaly
When the inside temperature is out of the operating temperature, it automatically starts
Cooling Down. Response for this status is “28”[CR].
Even if the temperature decreases during this process, Cooling Down is executed.
“88” [CR]
Status: Coming back after temperature anomaly
When the status moves to Standby after Cooling Down due to temperature anomaly, it
returns “88” [CR].
This shows that the status turns to Standby because of abnormal temperature.
This status maintains until next operation is done. When Power On is executed, the
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
information of temperature anomaly is canceled and normal operation is executed.
“24” [CR]
Status: Processing Power Save / Cooling Down
Power management function in Setting menu works and the status goes to Power Save
/ Cooling Down.
During this time, Functional Execution Commands are invalid (not executed).
This status moves to Power Save at set hours after the operation of Cooling Down.
Status： No signal Power Save / Cooling Down Power Save
Response： “00” “24” “04”
5 minutes with no signal After about 90 sec.
“04” [CR]
Status: Power Save
This shows that it moves to Power Save status by Power management function in
Setting menu.
“21” [CR]
“81”［CR］
Status: Cooling Down in process after turned off due to lamp failure
When a projector is turned off because of lamp failure, it automatically starts Cooling
Down operation, in which the projector returns “21” [CR].
Status: Standby after Cooling Down due to lamp failure
This value is returned when Cooling Down operation due to lamp failure has been
completed and the status has been moved to Standby. The status is kept until the next
operation starts.
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
7.5. Input Mode Read Command
Command “CR1” [CR]
Detail Get the selected Input No.
Acceptable “%1” [CR]
”1” = Computer 1 is selected
Response
%1
Unacceptable “?” [CR]
”2” = Computer 2 is selected
“3” = Video is selected
7.6. Lamp Time Read Command
Command “CR3” [CR]
Detail
Response
Get the total lamp running hours (Not actual lamp used hour, but Eco mode
corresponding value).
Acceptable “%1” [CR]
%1
Unacceptable “?” [CR]
Shows the time period with 5 digits numbers.
Example： “00410”[CR] ････shows 410 hours
7.7. Setting Read Command
Command “CR4” [CR]
Detail Get screen setting status such as Ceiling / Rear.
Acceptable “%1” [CR]
Response
%1
Unacceptable “?” [CR]
7.8. Temp Read Command
Command “CR6” [CR]
Get the temperature data inside the projector.
Detail
Response
With some temperature sensors installed in the projector, it is possible to get all
the temperature at once.
Acceptable “%1_%2_%3” [CR]
%1
%2
%3
“11”[CR] = Normal Screen Setting
“10”[CR] = Picture is top/bottom reversed.
(Status: Rear＆Ceiling ON)
“01”[CR] = Picture is left/right reversed. (Status: Rear ON)
“00”[CR] = Picture is top/bottom and left/right reversed.
(Status: Ceiling ON
%1＝Temperature of sensor 1
%2＝Temperature of sensor 2
%3＝Temperature of sensor 3
Temperature data is shown as “00.0”.
When the temperature goes down to -, the first character
becomes “-” instead of a space, like “-05.5” [CR].
When no temperature data can be returned due to hardware
problems, the first character becomes “E” like”E00.0” [CR].
When several temperature sensors are equipped, Responses are
returned continuously.
“_31.5 _ _35.2 _ _33.4”[CR]
The first data is sensor 1, then one space, and the data of sensor
2 follows.
)
Unacceptable
“？”[CR]
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LV-7290/ LV-7295/LV-7390/ LV-8225 Basic Serial Command Specifications
7.9. Lamp Mode Read Command
Command “CR7” [CR]
Detail
Response
Get lamp mode status.
For 1 lamp projector, get if it is lighting or not.
Acceptable “%1” [CR]
%1
Unacceptable “？”[CR]
“00” [CR]=Light is out.
“01” [CR]=Light is on.
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