Onkyo RS232 CONTROL SYSTEM - Command Communication; Question Communication; Event Notice Communication

4
2.COMMUNICATION FLOW DESCRIPTION
The DTR-5.2 uses Question, Command and Notification messages to have to
communicate with a given HOST. This protocol is designed for point to point
communication between a HOST and the DTR-5.2.
2.1.Command Communication
Send a "Command Message" to the DTR-5.2 from the HOST to change the system status.
The DTR-5.2 will respond with a status message within 50msec. If DTR-5.2 does not
respond within 50msec, the communication has failed.
2.2.Question Communication
Send a "Question Message" to the DTR-5.2 from the HOST to get the current system
status. The DTR-5.2 will respond with a status message.
2.3.Event Notice Communication
If user change the system status, the DTR-5.2 will notify the HOST by sending the new
current status.
Command Message
"!1SLI03[CR]"
Status Message
"!1SLI03[EOF]"
Receiver
HOST/Controller
Question Message
"!1SLIQSTN[CR]"
Status Message
"!1SLI03[EOF]"
HOST/Controller
Receiver
Status Message
"!1SLI03[EOF]"
Receiver HOST/Controller