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RS-232C Connection and Control
Connecting the Projector to a PC
You can connect the Projector to a PC using the RS-
232C (Crossed, Female Type) cable to control the
projector.
Do not disconnect or connect the RS-232C cable
while the Computer or the Projector is operating. It
may cause serious damage to the Computer or the
Projector.
If the PC is not properly configured, the RS-232C
connection may not work properly. For further
details, refer to the Computer’s product
documentation.
Transmit the following control command to transmit one or more control commands if there was a successful
response for the previous transmission or there was no response in over 3 seconds.
While controlling the Projector using a Computer, you cannot check the Projectors status change using the
Computer nor will it be displayed on the Projectors screen. Transmit the INFORMATION command to display
the current information on the Projectors screen.
All the control commands apply to the input source and the Projectors status currently displayed.
Communication Format (Complies with the RS232C Standard)
Transmission Speed: 115,200 bps
Parity Bit: No
Data Length: 8 data bits, 1 stop bit
Argument 1 Argument 2
-----
Argument N, Command, Response
Transmission Sequence and Data Format
Transmission Sequence
0x08 0x11 N PN CS
N : Variables Number (Hexadecimal)
PN : Value of the Variable
(Implemented in 4 bytes - Hexadecimal)
CS : Checksum
(Boolean complementation of the
summation of all bytes except the CS)
Structure for Variables (8 bytes)
CN 0x12 CC CS
CN : Command + Number of Variables
(Hexadecimal)
CC : Command - Hexadecimal
(Refer to the commands table)
CS : Checksum
(Boolean complementation of the
summation of all bytes except the CS)
Command Structure (4 bytes)
- Confirms proper data transmission
- No response for communication errors or
invalid commands
Command Structure (4 bytes)
CN 0x12 CC CS
Other Information RS-232C Connection and Control
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