Epson EMP 7800 Panduan Pengguna - Halaman 4

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2.ESC/VP21 Command Formats

2.1.Set command format

A set command consists of a command and a parameter. Projector returns a colon after executing the command.

There are two types of parameters. One is fixed such as ON, OFF, or 21.Other is a step parameter such as INC, DEC or INIT.

INC increments the parameter by one.

DEC decrements the parameter by one.

INIT initializes the parameter.

Set command example 1

Colon from projector

Set command example 2

Colon from projector

2.2.Get command format

A get command consists of a command and ?. Projector returns a response parameter after executing the command.

Get command example

Response parameter example

2.3.Null command

The null command is a command code of the return key code (Hex 0D). Projector returns a colon. The null command can be used to confirm

that the projector is in operation.

2.4.Illegal commands

Projector returns "ERR" and a return key code (Hex 0D) and a colon when it receives invalid commands.

ESC/VP21 Command User's Guide for Business Projectors

: SOURCE 21

Command

: VOL INC

Command

: SOURCE?

Colon from projector

SOURCE = 21

Colon from projector

Command

ERR

Space

Parameter

Space

Parameter

Command

Return

Parameter

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