Esc/Vp21 Command Formats - Epson ESC User Manual

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
4 of 28
Return
Return