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RS-232C Specifications and Commands
Computer control
A computer can be used to control the projector by connecting an RS-232C serial control cable (cross type,
commercially available) to the projector. (See page 27 of the projector's operation manual for connection.)
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: Conforms to RS-232C standard.
Baud rate*: 9,600 bps / 38,400 bps / 115,200 bps
Data length: 8 bits
*Set the projector's baud rate to the same rate as used by the computer.
Basic format
Commands from the computer are sent in the following order: command, parameter, and return code. After
the projector processes the command from the computer, it sends a response code to the computer.
Command format
C1 C2 C3 C4 P1 P2 P3 P4
Response code format
Normal response
O
K
Info
• When controlling the projector using RS-232C commands from a computer, wait for at least 40 seconds
after the power has been turned on, and then transmit the commands.
• After sending an input selection or picture adjustment command and then receiving an "OK" response
code, the projector may take some time to process the command. If a second command is sent while the
projector is still processing the first command, you may receive an "ERR" response code. If this happens,
try resending the second command.
• When more than one code is being sent, send each command only after the response code for the previ-
ous command from the projector is verified.
• "POWR????" "TABN _ _ _ 1" "TLPS _ _ _ 1" "TPOW _ _ _ 1" "TLPN _ _ _ 1" "TLTT _ _ _ 1" "TLTL _ _ _ 1"
"TNAM _ _ _ 1" "MNRD _ _ _ 1" "PJN0 _ _ _ 1"
− When the projector receives the special commands shown above:
* The on-screen display will not disappear.
* The "Auto Power Off" timer will not be reset.
− The special commands are available for applications that require continuous polling.
Note
• If an underbar (_) appears in the parameter column, enter a space.
• If an asterisk (*) appears in the parameter column, enter a value in the range indicated in brackets under
Control Contents.
*1 Serial No. Check command is used to read out the 12 digits of serial No..
*2 For setting the projector name, send the commands in the order of PJN1, PJN2 and PJN3.
*3 Parameters of CLR Temp settings are as follows.
CLR Temp
5500K
6500K
7500K
*4 The adjustable range of "V-Pos" (V-Position) may vary depending on the screen resolution of the computer.
Command 4-digit
0DH
Return code (
Parameter
_0 5 5
_0 6 5
_0 7 5
Parity bit: None
Stop bit: 1 bit
Flow control: None
Parameter 4-digit
Problem response (communication error or incorrect command)
E
R
R
)
CLR Temp
8500K
9300K
10500K
0DH
Return code (
)
0DH
Return code (
)
Parameter
_0 8 5
_0 9 3
_1 0 5
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