InFocus LASER PROJECTOR LP 540 Manuel utilisateur

LP540 / LP640 CLI

1COMMAND LINE INTERFACE .............................................................. 3

1.1.1 Purpose ............................................................................................ 3

1.1.2 Message Format................................................................................. 3

1.1.3 Write Commands ............................................................................... 3

1.1.4 Increment Commands ........................................................................ 4

1.1.5 Decrement Commands........................................................................ 4

1.1.6 Read Commands ................................................................................ 5

1.1.7 Error Handling ................................................................................... 6

1.1.8 Limitations ........................................................................................ 7

2SERIAL COMMUNICATIONS CONFIGURATION ................................... 8

3TABLE OF COMMANDS ....................................................................... 8

1COMMAND LINE INTERFACE

1.1.1 Purpose

This specification defines the serial command line streams for controlling

an InFocus projector through the RS232 connector to the projector.

These commands are intended to provide a simple set of controls to the

projector through what InFocus calls the Command Line Interface (CLI).

The CLI is designed for use by what the industry commonly calls

boardroom controllers. The CLI will accept commands via RS232 to

control the necessary features used by most boardroom controllers. This

CLI language uses a simple human readable protocol to help facilitate the

installers’ time necessary to setup or diagnose a problem with boardroom

control installations. However, the CLI is not a guaranteed delivery

system.

1.1.2 Message Format

As commonly used in math notation, everything is evaluated in the

parenthesis first, as the parentheses are designed to group things

together. This same parenthesis nomenclature is used to group a

command and its data together (nested parenthesis are not supported).

All commands are three alpha characters followed by the request. The

request can be a “?” symbol that signifies a read request, or a numerical

number represented by 1 to 4 ASCII digits, that signifies a write request.

Not all commands support reading and writing. The command table

indicates the commands and requests that are supported. There are also

support commands available on non CLI format.

1.1.3 Write Commands

Write commands have the following format:

(AAA####) where,

( - starts the CLI command

AAA - denotes the CLI function

#### - denotes the value to be written (leading zeros are

not necessary)

) - ends the CLI command

Some functions have ranges for settings while others are Boolean.

Settings with ranges range from zero to a maximum number. If a

number greater than the maximum is received, it is automatically limited

to the maximum number for that function. IT IS SUGGESTED THAT EACH

FUNCTION BE QUERIED FOR ITS RANGE WITH A READ COMMAND

BEFORE ISSUING A WRITE COMMAND. Boolean settings consider 0 as off

and 1-9999 as on. The only exception is the Power command. The only

valid write values that will be accepted will be ‘0’ for turning the power off

and ‘1’ for turning the power on.

Examples:

Brightness Command (BRT10) Sets the brightness to 10

Volume Command (VOL0000) Set the volume to 0

Freeze Command (FRZ1) Freeze the display

Freeze Command (FRZ9999) Freeze the display

Power Command (PWR0) Turn power off

Power Command (PWR1) Turn power on

Power Command (PWR9999) Command not recognized

1.1.4 Increment Commands

Increment commands have the following format:

(AAA+####) where,

( - starts the CLI command

AAA - denotes the CLI function

+ - denotes Increment command

#### - Is optional and denotes number of steps to be

incremented (leading zeros are not necessary)

) - ends the CLI command

Examples:

Brightness Command (BRT+10) Increment brightness 10 steps

Brightness Command (BRT+) Increment brightness 1

step

1.1.5 Decrement Commands

Increment commands have the following format:

(AAA-####) where,

( - starts the CLI command

AAA - denotes the CLI function

- - denotes decrement command

#### - Is optional and denotes number of steps to be

decrement (leading zeros are not necessary)

) - ends the CLI command

Examples:

Brightness Command (BRT-10) Decrement brightness 10 steps

Brightness Command (BRT-) Decrement brightness

1 step

1.1.6 Read Commands

Read commands have the following format:

(AAA?) where,

( - starts the CLI command

AAA - denotes the CLI function

? - denotes the read request

) - ends the CLI command

A read command returns the current setting in an ASCII format enclosed in

parentheses.

The following Format is defined:

1) Range Format (r-R,V)

2) String Format (S)

1.1.6.1 Range Format: (r-R,V)

where

( open parenthesis marks the start of the CLI

response

r minimum value of the setting’s range

R maximum value of the setting’s range

V the current value of the setting

) closing parenthesis marks the end of the CLI

response

Examples:

(VOL?) Read the current range and value of the

projector’s volume

Returns:(0-127,64)

(BRT?) Read the current range and value of the

projector’s brightness

Returns: (0-255,128)

1.1.6.2 String Format: (S)

where

( open parenthesis marks the start of the CLI

response

S character string

) closing parenthesis marks the end of the CLI

response

Examples:

(VER?) Read the current software version

Returns:(v2.0)

1.1.7 Error Handling

When the closing parenthesis is received, the command is validated

before it is processed. If the received command is determined to be

invalid, a question mark character will be returned as a error response.

Examples:

(123?) “123” is not a valid CLI command prefix. This read

request will return ‘?’

(VOL ?) “VOL” is a valid CLI command prefix, but the spaces

between the prefix and the

question mark character invalidates the command.

This read request will

return ‘?’.

Not all settings are readable. If an attempt is made to read from a write-

only setting, the projector will return a question mark.

Example:

(RST?) If the RST CLI command is write only, this read

request will return ‘?’.

A more descriptive error message on the errors can then be

queried with the (ERR?) command. The following message are

defined:

(No Error Detected)

(Unknown command)

(Unknown parameter)

(Command not supported by this projector)

(Command only available in Power on)

(Projector not ready to be turned on)

(Command only available with valid input source)

(Command only available with external module)

(Command failed)

(Write only Command)

(Command only available in RGB)

(Command only available in VIDEO)

(Command only available in NTSC)

1.1.8 Limitations

The CLI cannot respond to commands coming in at a high rate.

Therefore, a delay must occur between commands to ensure that the

command is properly executed before the next one is received.

The recommended approach for interfacing to the projector is:

Read:

1. Send the read command

2. Receive read response

Write

1. Send the write command

2. Verify that an error response ‘?’ was not received.

Continually query (for a predefined time) the setting until the value has

changed

Some settings don’t implement the full range of values in the setting’s defined range.

If an attempt is made to change the setting to an unsupported value, the CLI will

round down to the nearest supported value.

1.1.9 Help Commands

There are help commands available on non CLI format. The following non CLI

commands is available in plain text:

help - Prints help screen

cli AAA - Prints help information for the AAA command

cli cmds - Prints an alphabetical list of CLI commands

cli all - Prints the current value of all CLI settings

cli verbose on/off - Turns verbose on and off

1.1.10 Serial Communications Configuration

The following table describes the serial communication configuration that should be

used when interfacing to the CLI via the serial port. Windows HyperTerminal or

Procomm are two tools that can be used to send CLI commands across the serial

port.

Setting Value

Bits per second 19200

Data bits 8

Parity None

Stop bits 1

Flow Control None

Table 1 Configuration

2TABLE OF COMMANDS

All commands in the table may not be available for your current product. Run the

help command CLI ALL to get a list of supported commands.

Abbreviations:

NA = Not Available, Src.dep = Source depended use a read request with ? to get

current supported range.

Function Comm

and

Attrib

ute

Range Default

Power PWR

R & W 0 – 1

0 – Off

1 – On

Rear REA R & W 0 – 1

0 – Off

1 – On

Ceiling CEL R & W 0 – 1

0 – Off

1 – On

Auto ACL R & W 0 – 1 0

Ceiling 0 – Off

1 – On

Display

Message

DMG R & W 0 – 1

0 – Off

1 – On

Power Save PSV R & W 0 – 1

0 – Off

1 – On

Auto Power

Enable

APO R & W 0 – 1

0 – Off

1 – On

Low Power

Enable

LPE R & W 0 – 1

0 – Off

1 – On

Screen

Saver

SSV R & W 0 – 1

0 – Off

1 – On

Blank

Screen

BLK R & W 0 – 1

0 – Off

1 – On

Display

Startup

Logo

DSU R & W 0 – 2

0 – Default

1 – Blank

Screen

2 – Capture

Blank

Screen

Color

BSC R & W 0 – 2

0 – black

1 – blue

2 – white

Effect Key EFK R & W 0 – 10

0 – Blank

1 – Mute

2 – Mask

3 – Aspect

Ratio

4 – Source

5 – Auto

Image

6 – Freeze

7 – Zoom

8 – About

9 – PiP

10 – Screen

Trigger

Language LAN R & W 0 – 11

0 – English

1 – French

2 – German

3 – Spanish

4 – Chinese

Traditional

5 – Japanese

6 – Korean

7 –

Portuguese

8 – Russian

9 –

Norwegian

10 – Chinese

Simplified

11 – Italian

Enable

MNU R&W 0 – 1

0 – Off

1 – On

Navigation

NAV R&W 0 – 4

0 – up

1 – down

4 – select

Error

Message

ERR R ? NA

Table 2 System Commands

Function Com

mand

Attribut

Range Default

Horizontal

Keystone

Correction

DKH R & W 0-100 50

Vertical

Keystone

Correction

DKV R & W 0-100 50

Auto Vertical

Keystone

AVK R&W 0 – 1

0 – Off

1 – On

Contrast CON R & W 0-100 50

Brightness BRT R & W 0-100 50

Color CLR R & W 0-100 50

Tint TNT R & W 0-100 50

Aspect ratio ARZ R & W 0–2

0 – native

1 – 16:9

2 – 4:3

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