InFocus LP 815 Bedienungsanleitung

Command Line Interface on the LP820

Purpose ......................................................................................................................................................................................... 2

Message Format ............................................................................................................................................................................ 2

Write Commands ........................................................................................................................................................................... 2

Increment Commands.................................................................................................................................................................... 2

Decrement Commands................................................................................................................................................................... 3

Read Commands ............................................................................................................................................................................ 4

Error Handling .............................................................................................................................................................................. 5

Limitations ..................................................................................................................................................................................... 6

Serial Communications Configuration .................................................................................................. 7

Table Of End User Commands............................................................................................................... 8

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.

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.

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

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

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

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)

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)

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)

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)

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.

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

TABLE OF END USER COMMANDS

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

Function Command Attribute 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

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

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

Menu Enable MNU R&W 0 – 1

0 – disable

1 – enable

Menu Navigation NAV R&W 0 – 4

0 – up

1 – down

4 – select

Error Message ERR R ? NA

Table 2 System Commands

Function Command Attribute Range Default

Horizontal Keystone

Correction

DKH R & W 0-100 50

Vertical Keystone

Correction

DKV R & W 0-100 50

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

Presets PST R & W 0 – 12

0 – Presentation

1 – Photography

2 – Film

10 – User1

11 – User 2

12 – User 3

Freeze Display FRZ R&W 0 – 1

0 – Off

1 – On

Table 3 Picture

Function Command Attribute Range Default

Sharpness SHP R & W 0–4

0– Softest

1 – Soft

2– Standard

3 – sharp

4 – sharpest

Color Temp User Blue BCG R & W 0-100 50

Color Temp User Green GCG R & W 0-100 50

Color Temp User Red RCG R & W 0-100 50

Color Temp TMP R & W 0–4

0– Coolest

1 – Cool

2 – Warm

3 – Warmest

4 – User

Auto Image AIM W 1 1

Phase MSS R & W 0-100 NA

Tracking MTS R & W Src.dep NA

H Position HPS R & W Src.dep NA

V Position VPS R & W Src.dep NA

Mask MSK R&W 0-1000 0

Table 4 Picture Advance

Function Comm

and

Attribute Range Default

Source 1 SR1 R & W 0 – 5

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

Source 2 SR2 R & W 0 – 5

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

Source 3 SR3 R & W 0 – 5

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

Source 4 SR4 R & W 0 – 5

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

Power Up Source DSC R & W 0 – 7

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

7 – Last Used

Auto source ASC 0 – 1

0 – Off

1 – On

Computer source advance CAD W 1

1 – Perform advance

Video source advance VAD W 1

1 – Perform advance

Source SRC R & W 0 – 5

0 – Computer1

1 – Computer2

2 – Computer3

3 – Video1

4 – Video2

5 – Video3

6 – Video1Rgb

Image Locked and Displayable ILK R 0 – 1

0– Not Locked

1 – Locked and

displayed

Save User 1 Settings US1 W 1

1 – Save User 1 Setting

Save User 2 Settings US2 W 1

1 – Save User 2 Setting

Save User 3 Settings US3 W 1

1 – Save User 14Setting

Table 5 Sources

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