Rs-232C Interface; Communication Specifications; Command Format - JVC DLA-VS4010 Instructions Manual

RS-232C Interface

You can control this projector via a computer 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:
Transfer Rate
Data Length
Parity
Stop Bit
Flow Control

Command Format

Command Data Format (PC"Projector)
When sending a control command to this unit, use the following data format:
Header ID SP
.
Header : Designates the head of data and the data type.
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
CR : Designates the terminal of the data. (0Dh)
* [ ] is not necessary for Asking command.
Response Data Format (Projector"PC)
Upon executing a control command, this unit sends back response data to the computer in this format.
Header
ID SP
.
Header : Designates the head of the response data.
ID : "1": Identification number of the projector (Factory setting is "1")
SP : Designates the delimiter between ID and normal termination status, normal termination status
Normal Termination : "0" (30h)
Status
CR : Designates the terminal of the data. (0Dh)
* [ ] is not applicable when sending commands to the projector.
19200 bps
8 bit
None
1 bit
None
Command SP
"!" (21h): Assigns command to the projector (Command)
"?" (3Fh): Query to the projector (Asking command)
parameter and parameter. (20h)
Normal Termination Status
"@" (40h): Fetches data from the projector
and parameter, as well as parameter and parameter. (20h)
Parameter SP Parameter
Parameter
SP SP
SP CR
Parameter
SP CR
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