Purpose; Message Format; Write Commands; Increment Commands - InFocus LP815 Command Line Interface Manual

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####)
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
Volume Command
Freeze Command
Freeze Command
Power Command
Power Command
Power Command

Increment Commands

Increment 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
(BRT10)
(VOL0000)
(FRZ1)
(FRZ9999)
(PWR0)
(PWR1)
(PWR9999)
where,
( - starts the CLI command
Sets the brightness to 10
Set the volume to 0
Freeze the display
Freeze the display
Turn power off
Turn power on
Command not recognized