Canon LV-8320 Specifications

MULTIMEDIA PROJECTOR LV-8320

BASIC SERIAL

COMMAND SPECIFICATIONS

Revision 1

© 2011 CANON INC

.

YT1-1440-000

LV-8320 Basic Serial Command Specifications

Table of Contents

1．Overview .............................................................................. 1

2．Serial Interface Specifications .............................................. 2

2.1.Transfer Specifications .............................................................................................. 2

2.2.Connection ................................................................................................................. 2

3．Notes for Communication .................................................... 3

4．Functional Execution Command Table ................................ 4

5．Status Read Command Table .............................................. 6

6．Functional Execution Command .......................................... 7

6.1. Format .................................................................................................................... 7

6.2. Command Pipelining ............................................................................................. 7

6.3. Transfer Example ................................................................................................... 7

6.4. Operation Requirements ....................................................................................... 8

6.5. POWER ON Command .......................................................................................... 9

6.6. POWER OFF Command (Quick Power OFF) ....................................................... 9

6.7. POWER OFF Command ........................................................................................ 9

6.8. HDMI Command .................................................................................................... 9

6.9. Computer 1 Command ........................................................................................... 9

6.10. Computer 2 Command ....................................................................................... 10

6.11. Video Command ................................................................................................. 10

6.12. VOLUME + Command ....................................................................................... 10

6.13. VOLUME – Command ....................................................................................... 10

6.14. AUDIO MUTE ON Command ........................................................................... 10

6.15. AUDIO MUTE OFF Command ......................................................................... 11

6.16. VIDEO MUTE ON Command ........................................................................... 11

6.17. VIDEO MUTE OFF Command ......................................................................... 11

6.18. Screen Normal size Command .......................................................................... 11

6.19. Screen Full size Command ................................................................................ 11

6.20. Image Standard Command ................................................................................ 11

6.21. Image Real Command ........................................................................................ 12

6.22. Image Cinema Command .................................................................................. 12

6.23. Image1 Command .............................................................................................. 12

6.24. Image2 Command .............................................................................................. 12

6.25. Image3 Command .............................................................................................. 12

6.26. Image4 Command .............................................................................................. 12

6.27. Image Blackboard (Green) Command ............................................................... 12

6.28. Image Dynamic Command ................................................................................ 13

6.29. MENU ON Command ........................................................................................ 13

6.30. MENU OFF Command ...................................................................................... 13

6.31. DISPLAY CLEAR Command ............................................................................. 13

6.32. BRIGHTNESS + Command............................................................................... 13

6.33. BRIGHTNESS – Command ............................................................................... 13

6.34. IMAGE (Toggle) Command ................................................................................ 14

6.35. Direct on Setting Command .............................................................................. 14

6.36. Direct on Cancel Command ............................................................................... 14

6.37. Power Management Ready Command .............................................................. 14

6.38. Power Management OFF Command ................................................................. 14

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6.39. Power Management Shut down Command....................................................... 14

6.40. D.ZOOM + Command ........................................................................................ 15

6.41. D.ZOOM – Command ......................................................................................... 15

6.42. S-Video Command .............................................................................................. 15

6.43. Image Colorboard Command ............................................................................. 15

6.44. POINTER RIGHT Command ............................................................................ 15

6.45. POINTER LEFT Command ............................................................................... 15

6.46. POINTER UP Command ................................................................................... 16

6.47. POINTER DOWN Command ............................................................................ 16

6.48. ENTER Command ............................................................................................. 16

6.49. FREEZE ON Command ..................................................................................... 16

6.50. FREEZE OFF Command ................................................................................... 16

6.51. Computer 1 Analog RGB Command .................................................................. 16

6.52. Computer 1 Scart Command ............................................................................. 17

6.53. Computer 1 Component Command ................................................................... 17

6.54. AUTO PC ADJ. Command ................................................................................. 17

6.55. PRESENTATION TIMER Command ................................................................ 17

6.56. PRESENTATION TIMER (Exit) Command ..................................................... 17

6.57. KEYSTONE ↑Command .................................................................................... 17

6.58. 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 .......................................................................................... 23

7.9. Lamp Mode Read Command ............................................................................... 23

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1．Overview

1.1. These specifications define projector control commands for LV-8320.

1.2. The projector control commands are used to remotely control a projector through RS-232C from a computer.

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2．Serial Interface Specifications

2.1. Transfer

Item

Synchronous system Asynchronous

Specifications

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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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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4．Functional Execution Command Table

Command Item Command

C01

Item

POWER OFF

(Quick Power OFF)

C03

C04 HDMI

C07 Video

C08 ―――

C09

C0A

VOLUME +

VOLUME -

C0B AUDIO MUTE ON

C0C AUDIO OFF

C0D VIDEO ON

C0E

C0F

C10

C11

VIDEO MUTE OFF

Screen Normal size(4：3)

Screen Full size

Image Standard

C22 ―――

C24 ―――

C25 ―――

C26 ―――

C28

C29

C2A

C2B

Direct on Enable

Direct on Disable

Power Management Ready

Power Management OFF

C2C ―――

C2D ―――

C2E

C2F

C30

C31

Power Management Shut down

―――

D.ZOOM +

D.ZOOM -

C32 ―――

C33 ―――

C34 S-video

C35 ―――

C36 ―――

C37 ―――

C38 ――― C18 Blackboard

C19 Dynamic

C1A

C1B

C1C

C1D

MENU ON

MENU OFF

C1F

――― means no function.

C3C

C3D

POINTER UP

POINTER DOWN

C3E ―――

-4-

Command Item

C40

C41

C42


Command Item

C83 ―――

C84 ―――

C4D

C4E

C4F

C50

C51

C52

C53

C54

C45

C46

C47

C48

C49

C4A

C4B

C4C

Computer 1 Analog RGB

Computer 1 Scart

Computer 1 Component

C90

C91

C94

―――

―――

―――


-5-


5．Status Read Command Table

Command

CR1

CR2

Item

Input Mode Read

―――

CR5 ―――

CR7 Lamp Mode Read


Memo

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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 →

ACK CR

Processing

(A few ms ∼ 5s)

-7-

6.4. Operation Requirements


When the projector’s status is any of below, Functional Execution Commands are limited.

Projector Status Available Functional Execution Commands

In Standby

Countdown in process

C00：POWER ON

C00：POWER ON → Countdown is terminated

C01：POWER OFF

C02：POWER OFF → Countdown is terminated

Cooling Down in process NONE (No Execution)

Cooling Down due to Abnormal

Temperature

NONE (No Execution)

Abnormal Temperature Status NONE (No Execution)

Abnormal Power Status NONE (No Execution)

Power Save / Cooling Down in process NONE (No Execution)

Power Save Status

C00：POWER ON

C01：POWER OFF

Auto input：On1/On2 setting

Although transmit Input source commands, Auto input does not operate.

Note) When the status is as above, even if the projector receives other commands, it returns [ACK] [CR].

-8-

6.5. POWER ON Command


Detail

Power ON

When already Power is ON, nothing is done.

When sending this command during processing Countdown, Countdown is terminated.

Response

Unacceptable “？”[CR]

6.6. POWER OFF Command (Quick Power OFF)

Detail

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.

Response


6.7. POWER OFF Command

Detail

Power OFF (Standby).

The command operates the same Power OFF function as POWER button of the 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.

Response


6.8. HDMI Command

Detail

Select HDMI Input

Although projector returns “OK”, Auto input is not executed with this command while Auto input is set to On1 or On2.

Response


6.9. Computer 1 Command

Detail

Select Computer 1 Input


Response


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6.10. Computer 2 Command


Detail

Select Computer2 Input

Note 1) Although projector returns “OK”, Auto input is not executed with this command while Auto input 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.

Response


6.11. Video Command

Detail

Select Video Input


Response


6.12. VOLUME + Command

Detail

Volume Up.

This command operates the same way as “VOLUME+” button of the projector and remote control.

Response


6.13. VOLUME – Command

Detail

Volume Down

This command operates the same way as “VOLUME-” button of the projector and remote control.

Response


6.14. AUDIO MUTE ON Command

Detail

Sound Mute ON.

This command works the same way as “MUTE” button of the remote control for

Mute ON, but does not work for Mute OFF.

Response


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6.15. AUDIO MUTE OFF Command


Detail

Sound Mute OFF.

This command works the same way as “MUTE” button of the remote control for

Mute OFF, but does not work for Mute ON.

Response


6.16. VIDEO MUTE ON Command

Command “C0D”[CR]

Detail

Video Mute ON.

This command works the same way as “BLANK” button of the remote control for

BLANK ON, but does not work for BLANK OFF.

Response


6.17. VIDEO MUTE OFF Command

Detail

Video Mute OFF.

This command works the same way as “BLANK” button of remote control for

BLANK OFF, but does not work for BLANK ON.

Response


6.18. Screen Normal size Command

Detail

Set Aspect mode to Normal.

This command is invalid while D.Zoom is in operation.

Response


6.19. Screen Full size Command

Detail

Set screen mode to Full.

This command is invalid while D.Zoom is in operation.

Response


6.20. Image Standard Command

Detail Set image to Standard mode.

Response


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6.21. Image Real Command


Detail Set image to High contrast mode.

Response


6.22. Image Cinema Command

Detail Set image to Cinema mode.

Response


6.23. Image1 Command

Detail Set image to User1 mode.

Response




Response




Response




Response


6.27. Image Blackboard (Green) Command

Detail Set image to Blackboard (Green) mode.

Response


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6.28. Image Dynamic Command


Detail Set image to Presentation mode.

Response


6.29. MENU ON Command

Detail Display On-Screen Display Menu.

Response


6.30. MENU OFF Command

Detail Hide On-Screen Display Menu.

Response


6.31. DISPLAY CLEAR Command

Detail

Hide On-Screen Display.

Hide On-Screen Display unconditionally.

Response


6.32. BRIGHTNESS + Command

Detail Brightness of User Control +1.

Response


6.33. BRIGHTNESS – Command

Detail Brightness of User Control –1.

Response


-13-

6.34. IMAGE (Toggle) Command


Command “C27”[CR]

Detail

Switch Image Setting status.

This command works the same way as “IMAGE” button of the remote control.

Response


6.35. Direct on Setting Command

Detail

Enable Direct power on function.

This status is stored in EEPROM and retained regardless of Power OFF/ON.

Response


6.36. Direct on Cancel Command

Detail

Cancel Direct power on function.


Response


6.37. Power Management Ready Command

Detail

Set Power management mode to Standby mode.

This status is stored in EEPROM and retained regardless of Power ON/OFF.

Response


6.38. Power Management OFF Command

Detail

Set Power management mode to OFF mode.

This status is stored in EEPROM and retained regardless of Power ON/OFF.

Response


6.39. Power Management Shut down Command

Detail

Set Power management mode to Exit mode.


Response


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6.40. D.ZOOM + Command


Detail

Enter Digital Zoom mode and expand image size.

This command works the same way as “D.ZOOM +” button of the remote control.

Response


6.41. D.ZOOM – Command

Detail

Enter Digital Zoom mode and reduce image size.

This command works the same as “D.ZOOM -” button of the remote control.

Response


6.42. S-Video Command

Detail

Select S-Video input.


Response


6.43. Image Colorboard Command

Detail Set image to Colorboard mode.

Response


6.44. POINTER RIGHT Command

Detail

Move the Pointer of On-Screen Display Menu to the right.

This command works differently from the pointer “>” of the projector and remote control, and has no function of Volume +.

Response


6.45. POINTER LEFT Command

Detail

Move the Pointer of On-Screen Display Menu to the left.

This command works differently from the pointer “<” of the projector and remote control, and has no function of Volume -.

Response


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6.46. POINTER UP Command


Detail

Move up the Pointer of On-Screen Display Menu.

This command works the same way as the pointer “▲” of the projector.

Response


6.47. POINTER DOWN Command

Detail

Move down the Pointer of On-Screen Display Menu.

This command works the same way as the pointer “▼” of the projector.

Response


6.48. ENTER Command

Detail

This command works the same way as “OK” button of the projector and remote control.

Response


6.49. FREEZE ON Command

Detail

Freeze on-screen image.

This command works the same way as “FREEZE” button of the remote control for

Freeze ON, but does not work for Freeze OFF.

Response


6.50. FREEZE OFF Command

Detail

Cancel Freeze mode.

This command works the same way as “FREEZE” button of the remote control for

Freeze OFF, but does not work for Freeze ON.

Response


6.51. Computer 1 Analog RGB Command

Detail

Select Analog RGB input in Computer 1.


Response


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6.52. Computer 1 Scart Command


Detail

Select Scart input in Computer 1


Response


6.53. Computer 1 Component Command

Detail

Select Component input in Computer 1.


Response


6.54. AUTO PC ADJ. Command

Detail

Execute Auto PC function.

This command operates the same as “AUTO PC” of main menu.

Projector suspends Auto PC operation when receiving this command another time.

Response


6.55. PRESENTATION TIMER Command

Detail

Execute Presentation Timer.

This command works the same way as “P-TIMER” button of the remote control.

Response


6.56. PRESENTATION TIMER (Exit) Command

Detail

Exit Presentation Timer menu.

This command works the same as holding on the “P-TIMER” button of the remote control

Response


6.57. KEYSTONE ↑Command

Detail Correct keystone distortion by reducing upper part of image.

Response


-17-

6.58. KEYSTONE ↓Command


Detail Correct keystone distortion by reducing down part of image.

Response


-18-


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

Detail

Response

Get the projector’s operating status

%1

”00” = Power ON

“80” = Standby

“40” = Countdown in process

“20” = Cooling Down in process

“10” = Power Failure

“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

-19-

[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]

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.

“10” [CR]

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.

“28” [CR]

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-8320 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]

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].

“81”［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.

-21-

7.5. Input Mode Read Command


Detail Get the selected Input No.

Response %1

”1” = Computer 1 is selected

”2” = Computer 2 is selected

“3” = HDMI is selected

“4” = Video is selected

“5” = S-video is selected

7.6. Lamp Time Read Command

Detail

Response

Get the total lamp running hours (Not actual lamp used hour, but Eco mode corresponding value).

%1

Shows the time period with 5 digits numbers.

Example： “00410”[CR] ････shows 410 hours

7.7. Setting Read Command

Detail Get screen setting status such as Ceiling / Rear.

Response %1

“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

)

-22-

7.8. Temp Read Command


Detail

Get the temperature data inside the projector.

With some temperature sensors installed in the projector, it is possible to get all the temperature at once.

Response

%1

%2

%3

%1＝Temperature of sensor 1



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.

7.9. Lamp Mode Read Command

Detail

Get lamp mode status.

For 1 lamp projector, get if it is lighting or not.

Response %1

“00” [CR]=Light is out.

“01” [CR]=Light is on.

-23-

Canon LV-8320 Specifications

MULTIMEDIA PROJECTOR LV-8320

BASIC SERIAL

COMMAND SPECIFICATIONS

Revision 1

.

2.1. Transfer

Item

Synchronous system Asynchronous

Specifications

Transmission Speed 9600 / 19200

Data Length 8 bit

Parity N/A

Stop Bit 1

Flow Control N/A

2.2. Connection

PC Projector

COM 1 Control Port

(D-Sub 9 Pin) (D-Sub 9 Pin)

Next Command

Projector → PC

――― means no function.

――― means no function.

――― means no function.

6.1. Format

6.2. Command Pipelining

6.3. Transfer Example

Command

PC → Projector “C” “0” “7” CR

Projector →

Processing

6.4. Operation Requirements

6.5. POWER ON Command

6.6. POWER OFF Command (Quick Power OFF)

6.7. POWER OFF Command

6.8. HDMI Command

6.9. Computer 1 Command

6.10. Computer 2 Command

6.11. Video Command

6.12. VOLUME + Command

6.13. VOLUME – Command

6.14. AUDIO MUTE ON Command

6.15. AUDIO MUTE OFF Command

6.16. VIDEO MUTE ON Command

6.17. VIDEO MUTE OFF Command

6.18. Screen Normal size Command

6.19. Screen Full size Command

6.20. Image Standard Command

6.21. Image Real Command

6.22. Image Cinema Command

6.23. Image1 Command

6.24. Image2 Command

6.25. Image3 Command

6.26. Image4 Command

6.27. Image Blackboard (Green) Command

6.28. Image Dynamic Command

6.29. MENU ON Command

6.30. MENU OFF Command

6.31. DISPLAY CLEAR Command

6.32. BRIGHTNESS + Command

6.33. BRIGHTNESS – Command

6.34. IMAGE (Toggle) Command

6.35. Direct on Setting Command

6.36. Direct on Cancel Command

6.37. Power Management Ready Command

6.38. Power Management OFF Command

6.39. Power Management Shut down Command

6.40. D.ZOOM + Command

6.41. D.ZOOM – Command

6.42. S-Video Command

6.43. Image Colorboard Command

6.44. POINTER RIGHT Command

6.45. POINTER LEFT Command

6.46. POINTER UP Command

6.47. POINTER DOWN Command

6.48. ENTER Command

6.49. FREEZE ON Command

6.50. FREEZE OFF Command

6.51. Computer 1 Analog RGB Command

6.52. Computer 1 Scart Command