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Operation and Settings
You can control this projector by connecting the computer to this unit using a RS-232C cross cable (D-sub 9 pins). The
commands to control this unit and the response data format against the received commands are explained here.
For details, please consult your authorized dealer.
Communication Specifications
Communication specifications for this unit are as follows:
Command Format
Ⅵ Command Data Format (PCProjector)
When sending a control command to this unit, use the following data format:
Header : Designates the head of data and the data type.
“!” (21h): Assigns command to the projector (Command)
“?” (3Fh): Query to the projector (Asking command)
ID : “1”: Identification number of the projector (Factory setting is 1)
SP : Designates the delimiter between ID and command, command and parameter, as well as parameter and
parameter. (20h)
CR : Designates the terminal of the data. (0Dh)
* [ ] is not necessary for Asking command.
Ⅵ Response Data Format (ProjectorPC)
Upon executing a control command, this unit sends back response data to the computer in this format.
Header : Designates the head of the response data.
“@” (40h): Fetches data from the projector
ID : “1”: Identification number of the projector (Factory setting is 1)
SP : Designates the delimiter between ID and normal termination status, normal termination
status and parameter, as well as parameter and parameter. (20h)
Normal Termination Status : “0” (30h)
CR : Designates the terminal of the data. (0Dh)
* [ ] is not applicable when sending commands to the projector.
RS-232C Interface
Transfer Rate 19200 bps
Data Length 8 bit
Parity None
Stop Bit 1 bit
Flow Control None
[
• • •
]
Header ID SP
Command
SP
Parameter
SP
Parameter
SP CR
[
• • •
]
Header ID SP
Normal
Termination
Status
SP
Parameter
SP
Parameter
SP CR
DLA-SH4_EN.book Page 34 Tuesday, January 15, 2008 6:07 PM