S
P
E
C
F
I
L
E
DLP™ Projector
PT-LW321
Basic format
Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent
in this order. Add parameters according to the details of control.
STX
:
C1 C2 C3
:
P1 P2 ... Pn
ETX
Start
(1 byte)
Colon
(1 byte)
Colon
(1 byte)
End
(1 byte)
Parameters
(undefined length)
Command
(3 bytes)
(Control and/or query commands)
*
STX and ETX are character chords. STX is 02 and ETX is 03 when expressed in hexadecimal.
CAUTION
•
•
•
It may not be possible to send or receive commands for about 10 to 60 seconds when the lamp is first turned on. If this
occurs, wait for 60 seconds, then try sending or receiving again.
When sending multiple commands, be sure to wait for at least 0.5 second after receiving a response from the projector before
sending the next command.
Additional time is sometimes required for response due to processing inside the projector. Set the time-out period for com-
mand response to 10 seconds or more.
Control commands
Command : Parameter
Function
Callback
PON
POWER (STANDBY)
Standby power on
Standby power off
HDMI
PON
POF
POF
IIS:HD1
IIS:RG1
IIS:RG2
IIS:VID
OSH:0
INPUT SELECT
AV MUTE
IIS:HD1
IIS:RG1
IIS:RG2
IIS:VID
OSH:0
Computer 1
Computer 2
Video
AV mute off
AV mute on
OSH:1
OSH:1
*
*
Do not send PON, POF or OSH commands continuously in a short period of time. Doing so may burst the lamp or shorten the lamp replacement
cycle.
When a command that cannot be executed during standby mode is sent, the projector will send an ER401 command in reply.
As of August 2013
1 0 / 1 2
SFD13M010-1
PACELEADER [ PACELEADER INDUSTRIAL ]
