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4-2. Communication Procedure
Communication sequence is shown below. SDCP commands must be sent by CONTROLLER and PRO-
JECTOR responses to it. On the other hand, SDAP commands are sent by PROJECTOR and have no
response from CONTROLLER.
CONTROLLER
SDCP SET/GET Request
Response
(OK/NG)
It is prohibited that CONTROLLER send another command before receiving the response to the previous
command. Since PROJECTOR executes the command before sending the return data, CONTROLLER
must wait a while before receiving the response. The waiting time depends on not only the commands but
also network traffi c.
VPL-EW130
PROJECTOR
SDAP Broadcast
SDAP Broadcast
Fig. 4-1 Command Sequence
The command is executed if it's valid.
Then, the receive command is sent to
the CONTROLLER.
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