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9.0 MISCELLANEOUS
38 R699740 - DreamBee User Manual
9.0 MISCELLANEOUS
9.1 RS-232C input
Pin Assignment
External Control
Control of this unit is possible via a computer by connecting this unit to an automation device or computer with 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.
Communication Specifications
Communication specifications for this unit are as follows:
Command Format
When sending a command to this unit, use the following data format:
*[ ] is not necessary
Response data format
Upon receiving a valid control command, the unit sends back the following response data to the computer to
Pin No. Signal Name Pin No. Signal Name
1 N/C 6 N/C
2 RD 7 N/C
3 TD 8 N/C
4 N/C 9 N/C
5 GND
Baud Rate 19200 bps
Data Format Binary
Character Length 8 bits
Parity None
Start Bit 1 bit
Stop Bit 1 bit
Flow Control None
[ ]
Header Proj. ID Command Com. Parameters LF
1 byte 2 bytes 2 bytes Variable length: 0, 1 or 4 bytes 1 byte
Header : Designates the Command type. 2 possible headers:
! (21h): Assigns command to the projector (Command)
? (3Fh): Query data from the projector (Asking command)
Proj. ID : Designates the Projector Identification. Fixed to 89h 01h.
Command : Designates command.
Com. Parameters : Designates the command parameters. Variable length from 0 to 4 bytes.
LF : Designates the end of the data. Fixed to Line Feed (0Ah)
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