InFocus LP790 Montageanleitung

InFocus LP790 RS232 Commands

Page2

1PURPOSE.......................................................................................................................................3

2SCOPE.............................................................................................................................................3

3 FUNCTION TYPE........................................................................................................................3

3.1 LEGAL ARGUMENTS.........................................................................................................................................................................3

4COMMANDRETURN CODES...................................................................................................4

5COMMAND SYNTAX..................................................................................................................4

5.1 DELIMITER.........................................................................................................................................................................................4

5.2 SEPARATOR........................................................................................................................................................................................4

5.3 COMMAND EXAMPLE .......................................................................................................................................................................4

6ERROR SYNTAX..........................................................................................................................5

6.1 ERROR EXAMPLE..............................................................................................................................................................................5

7TRANSACTION EXAMPLES.....................................................................................................6

8TABLE OF FUNCTIONS.............................................................................................................7

9SETUP RECOMMENDATION.................................................................................................10

9.1 SETTING UP………………………………………………………………………………………………………..10

9.2 CABLES……………………………………………………………………………………………………………..10

9.3 COMMUNICATION PROTOCOL…………………………………………………………………………………10

Page3

1PURPOSE

This document describes the Projector Management Protocol between the Projector and a Computer (Host). The Protocol is

based on a ASCII commands. By using this protocol a Host will be able control the projector on a physical link.

2SCOPE

The physical link is not defined in this document. Therefore the protocol can either be implemented on topof RS-232, USB,

Ethernet or other forthcoming communication methods.

3FUNCTION TYPE

The Function is grouped in four different function types:

Function type Comments

Execute An execute function executes an action on the projector, i.e.

only one state.

State A State function performs a set operation from a predefined

list of states. Not all values in the range

have to be legal.

Adjust An adjust function is characterized by Maximum >

Minimum. And all the integer values between Minimum and

Maximum are legal.

Query A query function is a read only function.

Table 1

3.1 Legal Arguments

Each Function type has a set of legal arguments:

Function type Argument Comments

State <decimal number> Sets the function to the required state.

Adjust +Increases the value of the function one step.

Adjust -Decreases the value of the function one step.

Adjust <decimal number> Sets the value of the function to the specific number.

All ?Requests current, max and min value of the function.

Execute EExecutes an action.

All S? Returns ‘0’ if function is not supported

Return ‘1’ if function is supported

All CReturns Current Value

All XReturn max value

All MReturns min value

All DSet the function to the default value

Table 2

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4COMMAND RETURN CODES

If a valid command is received the projector executes the command and as an acknowledgment it replies to the projector by

returning a copy of the command with the current value appended.

If the projector receives an illegal command it replies by returning an error message.

5COMMAND SYNTAX

Every command consists of a command that is ended with a delimiter. The command consists off a function code, a

separator, and an argument.

A function code consists of 3-5 ASCII letters and begins with a letter [A-Z], [a-z]

|---------------------Command----------------------------------|

At the end of this document, the “Table of Serial Commands” lists all valid function codes. Any other combination of

characters received before a delimiter will result in an error response from the projector to the control unit (Host).

5.1 Delimiter

ASCII HEX DEC Comment

^M 0D 13 The stop of a command is indicated by a carriage return = ↵

^L 0A 10 Line feeds after CR is ignored.

Table 3

5.2 Separator

ASCII HEX DEC Comment

;3B 59 Used as a separator between the function code and the argument

Table 4

5.3 Command Example

|------------------------Command---------------------------------|

BRG ; 55 ↵

Always initiate programming by sending a carriage return

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6ERROR SYNTAX

If an command isn’t available the projector response with an error message:

|------------------------------------ Error message ----------------------------------|

ASCII HEX DEC Comment

!21 33 Error is always started with an Error Mark

Table 5

The following error codes are defined:

1000;<Unknown command>

1001;<Unknown parameter>

1002;<Parameter out of range>

1003;<Command not supported by this projector>

1004;<Command only available in Power on>

1005;< Projector not ready to be turned on>

1006;<Command only available with valid input source>

1007;<Command only available with external module>

1008;<Command failed>

2000;<Command only available in RGB>

2001;<Command only available in VIDEO>

2002;<Command only available in NTSC>

6.1 Error Example

ASK>BRX;50↵

! (BRX;50) 1000 ; <Unknown command >

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7TRANSACTION EXAMPLES

Character string is in ASCII code and↵is carriage return:

Adjust function:

ASK>BRG;?

Min = 0

Default = 128

Max = 255

Current = 12

ASK>BRG;10↵

BRG=10

ASK>

ASK>BRG;200↵

!(BRG;200)8001;<Parameter out of range>

ASK>

State function:

ASK>REAR;1↵

REAR=1

ASK>

Execute function:

ASK>FRES;E↵

ASK>

Find out if a function is supported:

ASK>FRES;S?↵

ASK>

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8TABLE OF FUNCTIONS

Src.dep = Source dependentuse ? or C,X,M parameter to get current Max and Min values before setting this functions.

Function F. code F.type Arguments Minimum Maximum

Power PWR State 0 – Off

1 – On - -

Reset RES Execute E- -

Tune TUNE Adjust -/+, <dec> Scr.dep Scr.dep

Frequency FRQ Adjust -/+, <dec> Scr.dep Scr.dep

Horizontal

position HOR Adjust + (Up)

- (Down)

<dec>

Scr.dep Scr.dep

Vertical position VER Adjust + (Right)

- (Left)

<dec>

Scr.dep Scr.dep

ColorTemp COLT Adjust -/+, <dec> 0100

Rear REAR State 0 – Front projection

1 – Rear projection - -

Ceiling CEIL State 0 – Table use

1 – Ceiling mount - -

Factory reset FRES Execute E- -

Table 6

Function F. code F.type Arguments Minimum Maximum

Contrast CON Adjust -/+, <dec> 0100

Brightness BRG Adjust -/+, <dec> 0100

Tint TINT Adjust -/+, <dec> 0100

Color COL Adjust -/+, <dec> 0100

Sharpness SHRP Adjust -/+, <dec> 0100

Keystone KSTN Adjust -/+, <dec> 0100

16:9 16_9 State 0 – 4:3 aspect

1 – 16:9 aspect - -

Table 7

Function F. code F.type Arguments Minimum Maximum

Volume VOL Adjust -/+, <dec> 0100

Mute MUTE State 0 – Off

1 – On - -

Treble TRE Adjust -/+, <dec> 0100

Bass BASS Adjust -/+, <dec> 0100

Loudness LOUD State 0 – Off

1 – On - -

Mute Internal MUIN State 0 – Off

1 – On - -

Table 8

Page8

Function F. code F.type Arguments Minimum Maximum

On screen display OSD State 0 – Off

1 – On - -

Source SRC State 0 – VGA1

1 – S-VIDEO1

2 – CVBS1

3 – VGA2

4 – S-VIDEO2

5 – CVBS2

6 – DVI1

7 – DVI2

8 – BNC1

9 – BNC2

- -

Osd language LANG State 0 – English (default)

1 – French

2 – German

3 – Spanish

4 – Norwegian

5 – Italian

6 – Japanese

8 – Chinese Simpl.

9 – Chinese Trad.

10 – Portugese

- -

Mask1MSK Adjust -/+, <dec> 0100

Black2BLK State 0 – Off

1 – On - -

Magnify ZOOM Adjust -/+, <dec> 0100

Pan horizontal3PANH Adjust -/+, <dec> Scr.dep Scr.dep

Pan vertical PANV Adjust -/+, <dec> Scr.dep Scr.dep

Freeze FRZ State 0 – Off

1 – On - -

Baudrate BAU State 1200

9600

19200

- -

DPMS DPMS State 0 – Off

1 – On - -

Source Search SRCH State 0 – Off

1 – On - -

IR Reciever IRRE State 0 – Off Not saved!

1 – On - -

Keyboard KBRD State 0 – Off Not saved!

1 – On - -

Table 9

1Sliding a mask from the bottom of the screen. Bottom is line 0

2Blacks the picture

3Is used to define a new Zoom point

Page9

Function F. code F.type Arguments Minimum Maximum

Information INF State 0 – Response is source

information .

1 - Response is Service

information.

2 – Response is product ID.

3 – Response is software version.

4 – Response is hardware revision

5 – Response is Lamp Time

6 – Response is

Remaining Lamp Time

7 – Response is

Protocol Version

8 – Response is product name

9- Response is network version

- -

Current State CSTA query ?

Response is the

projectors current state

Word in hex ( 0000-FFFF)

0 - STANDBY

1 - LAMP_STRIKE

2 - LAMP_ON_WARMING_UP

3 - SEARCHING

4 - SOURCE_DETECTED

5 - PICTURE_SETUP

6 - LAMP_OFF_COOLING

Status Word STAT query ?

Response is the current Status

Word in hex( 0000-FFFF)

Bit D0: Power

Bit D1: Valid Source

Bit D2: Signal Source Change

Bit D3: Module Change

Bit D4: State Change

Bit D5-D7: Reserved

Bit D8: Fan Stop

Bit D9: High Temperature

Bit D10:Lamp Time Expired

Bit D11-D15 Reserved

Table 10

Page10

9SETUP RECOMMENDATION

It is recommended to disable DPMS and Source search with,

DPMS;0↵

SRCH;0↵

,for best control of the projector.

Also disable keyboard and remote after PowerOn with:

IRRE;0↵

KBRD;0↵

These two command isn’t saved so it’s recommended to always set them after the PWR;1 command.

9.1 Setting Up

To enable serial RS-232 control do the following:

•Power up the projector

•Connect the serial (COM) port from the Computer (Host) to the RS-232 port on the projector by using the optional

twisted serial cable mentioned below under CABLES. Power up the computer.

•On the PC side a software that can perform a “terminal emulation” is needed. This is a standard component in most

operating systems, and it is also available as stand alone software. NortonPCAnywhere and Norton Commander are

two programs that can do this. As it is a standard component in the Windows Operating System, we recommend that

HyperTerminal is being used. This can normally be found in the accessories menu. Set the Computer serial port settings

as shown below: Default is 9600 baud - 8 bit - No parity - No flow control - 1 stop bit

•Press ENTER (sending a carriage return) and the projector should respond by sending a prompt (ASK>). The projector

is now ready to receive commands.

9.2 Cables

Optional twisted RS-232 cable part# 301.159.

9.3 Communication Protocol

Parameter Default setting Valid values for direct setting

Baudrate 9600 9600, 19200 bps

Data bit 8none

Parity bit None none

Stop bit 1none

Flow Control None none

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