Get the number of connected projectors

Daisy Chain Communication

(1) Send the following request code from the PC to the projector.

Header + Command data (‘02H’ + ‘00H’ + ‘00H’ + ‘00H’ + connection ID (2 bytes))

(2) The projector returns the response code to the PC.

‘9EH’ + ‘04H’ + connection ID (2 bytes) + number of projectors (2 bytes) + group (1 byte) + ID (1 byte)

When the projector cannot understand the received command, the error code is sent back to the PC.

‘96H’ + ‘04H’ + connection ID (2 bytes) + ‘00H’ + ‘00H’ + ‘00H’ + ‘00H’

When the projector cannot execute the received command, the error code is sent back to the PC.

‘9FH’ + ‘06H’ + connection ID (2 bytes) + position number of projector having an error* (2 bytes) + group (1 byte) + ID (1 byte) + error code (2 bytes)

*The position number is counted from the projector connected to PC directly, which has No.1 as position number. Then, the next one is No.2 and so on.

Error Code

Content

0The command was not accepted because the projector connected to PC was busy.

1Communication error occurred between projectors.

Set the communication Group identification and Communication ID

(1) Send the following setting code from the PC to the projector.

Header + Command data (‘01H’ + ‘00H’ + target number (2 bytes) + connection ID (2 bytes))

(2)The projector changes the group and ID setting based on the above setting code.

(3)Projector does not send out the response data.