ENGLISH
2 Command transmission and reply message
When the DN-V750/V755 receives a command and completes the instructed task or when an error occurs, the DN-V750/V755 returns
a reply message to the controller. There are three types of reply messages:
• Task completed message [R] indicating that the task has been completed normally
• Status message in reply to a status request command
• Error message [E ** ] indicating that an error has occurred.
A 2-digit number following the [E] in the error message indicates the error type.
The message [OK] is returned after the power is turned on or the system is rebooted. (Native mode only.)
Send one command at a time.
Example : To search for the 10th file and play it.
Native mode
10SE<CR><LF>
R<CR><LF>
PL<CR><LF>
R<CR><LF>
2 Task completed message
This is the message returned to the controller when the task for the operation command (play, etc.) or setting command received from
the controller has been completed normally.
The task completed message in the different operating modes is as follows:
Native mode
LD compatible mode
2 Status message
A status message including information on the DN-V750/V755's status, etc., can be received by sending a status request command
for the status, etc., of the DN-V750/V755 from the controller. The format is specific to each command.
The status message in the different operating modes is as follows:
Native mode
LD compatible mode
2 Message upon startup (native mode only)
If the system is rebooted or the power is turned on from the off status with serial connections made, the message [OK<CR><LF>] is
sent from the DN-V750/V755.
20
Controller
Command transmission
Error generated during command
processing (error message E ** )
R (task completed message)
Or status message
Send
Task completed message
Send
Task completed message
:
R<CR><LF>
:
R<CR>
:
Message + R<CR><LF>
:
Message<CR>
DN-V750/V755
Y
Command
processing error?
N
Normal
LD compatible mode
10SE<CR>
Send
R<CR>
Task completed message
PL<CR>
Send
R<CR>
Task completed message