RS-232C Port Specifications
PC control
A computer can be used to control the projector by connecting an
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: | Conforms to |
Baud rate: | 9,600 bps |
Data length: | 8 bits |
Parity bit: | NON |
Stop bit: | 1 bit |
Flow control: | None |
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 | Return code (0DH) |
Command | Parameter |
|
Response code format
Normal response
O
K
Return code (0DH)
Problem response (Failure due to incorrect command/parameter or the other communication errors)
E
R
R
Return code (0DH)
When more than one code is being sent, send each command only after the OK response code for the previous command from the projector is verified.
•When using the computer control function of the projector, the projector operating status cannot be read to the computer. Therefore, confirm the status by transmitting the display commands for each adjustment menu and checking the status with the
Appendix
43