Command Transmission Timing - Epson ESC User Manual

5. Command transmission timing

5.1. Standby state
1). For all mode with the standby configuration of "network on"
The first command can be sent anytime and the subsequent commands should be sent after receiving a colon from the
projector.
2). Other than 1)
PWR ON can be sent any time.
5.2. Power on state
A command should be sent after receiving the colon of the previous command from the projector. The following is an
exception. When the PWR OFF command is sent to 7800/7850/8300/9300 with the standby configuration of "network off",
the subsequent command should be sent 10 seconds after the colon is received.
In case that you can not wait for the colon and send a command after receiving it, instead send a command after the
execution time listed in the following table.
Command
PWR ON
PWR OFF (note4)
SOURCE (note3)
All others
(note1) When a projector receives the PWR ON command, it tries to ignite the lamp by activating the ballast unit. In
case that the lamp fails to be ignited, it tries to ignite the lamp three times at maximum. When the lamp fails to
be ignited three times, it is a lamp failure.
The projector returns a colon within 40, 70 and 100 seconds when successful in the first, second and third times
respectively.
(note2) When the input vide sync signal is stable, a colon is returned within 5 seconds. However, it may take more than
5 seconds when the input video sync signal is unstable.
(note3) Projector initiates the process of the input video signal recognition when it receives a SOURCE command. If the
signal of the video input is changing (for example, from SVGA to XGA by A/V controller) during the process of
the input video signal recognition, the projector returns "ERR".
(note4) Projectors execute the PWR OFF command after they start completely.
(note5) Projectors might return "ERR" when "Quick Setup" and "Auto Focus" functions are set to ON.
5.3. Warning and abnormal cases
Projector executes commands normally while a warning indicator such as a high temperature warning is on.
Projector does not execute commands nor return a colon when the projector is in an abnormal state such as a lamp
failure and abnormal high temperature.
As for EMP-6100/6000, EMP-1715/1710/1705/1700, EMP-1815/1810, EMP-S5/X5/83/822 and the following models,
when an abnormal state is continued for 130 seconds after, PWR ON command becomes possible.
ESC/VP21 Command User's Guide for Business Projectors
Others
830/835(note5)
7900/7950/740/745
61/81/821/S3/S4
600/800/810/811/820
Others
740745, 732/737, 821
S3/S4, 765/760/755/750, 830/835
82, 6100, 1715/1710/1705/1700,
1815/1810/1825, X5/822/823,
400W/410W, G5350/G5100/G5200W
S6/X6/W6,1735W/1730W/1725/1720,
84/85/824/825/826W, and later model
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Models
~ 6~
Execution time
40seconds
20seconds
25seconds
130seconds
50seconds
20seconds
10seconds
5seconds (note2)
3seconds