TASCAM DA-6400 TELNET protocol specifications - Page 7

Repeat Mode Select Select

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TASCAM DA-6400/DA-6400dp TELNET protocol specifications Command sequence Most of the time, the controlled device does not send ACK in response to transport control and data preset commands sent by the controlling device. The controlled device sends return commands in response to data sense commands that request the return of data values set in the controlled device. The controlled device also sends notification commands to the controlling device when its status changes, for example from stopped to playing, and when errors and other significant things occur. Examples of command sequences follow. Always leave at least 20 ms open between commands. Example 1: Control the transport of the controlled device This is an example of starting playback. When the controlled device receives a PLAY command and starts playing, it sends a CHANGED STATUS command. ACK is not sent for the PLAY command. Controlling device Command Controlled device Controlled device status Stopped PLAY -> REPEAT mode set to ON Example 3: Receiving set data This is an example of receiving the set REPEAT mode. When the controlled device receives a REPEAT MODE SELECT (Sense) command, it returns the set REPEAT mode. Controlling device Command Controlled device Controlled device status REPEAT MODE SELECT (Sense) -> CHANGED STATUS CHANGES STATUS

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TASCAM DA-6400/DA-6400dp TELNET protocol specifications
7
TEAC Corporation
Command sequence
Most of the time, the controlled device does not send ACK in response to transport control and data preset
commands sent by the controlling device.
The controlled device sends return commands in response to data sense commands that request the return of
data values set in the controlled device.
The controlled device also sends notification commands to the controlling device when its status changes, for
example from stopped to playing, and when errors and other significant things occur.
Examples of command sequences follow.
Always leave at least 20 ms open between commands.
Example 1: Control the transport of the controlled device
This is an example of starting playback.
When the controlled device receives a PLAY command and starts playing, it sends a CHANGED STATUS
command.
ACK is not sent for the PLAY command.
Command
Controlled device status
Controlling device
Controlled device
Stopped
PLAY
->
<-
CHANGED STATUS
Send that playback has started
Example 2: Setting data
This is an example of setting the REPEAT mode.
The controlled device receives a REPEAT MODE SELECT (Select) command and sets its REPEAT mode.
ACK is not sent for this command.
Command
Controlled device status
Controlling device
Controlled device
REPEAT MODE SELECT (Select ON)
->
REPEAT mode set to ON
Example 3: Receiving set data
This is an example of receiving the set REPEAT mode.
When the controlled device receives a REPEAT MODE SELECT (Sense) command, it returns the set
REPEAT mode.
Command
Controlled device status
Controlling device
Controlled device
REPEAT MODE SELECT (Sense)
->
<-
REPEAT MODE SELECT DATE
Example 4: Confirm the controlled device status and conduct the next operation
If the operation status of the controlled device changes, it sends CHANGED STATUS. With CHANGED
STATUS as a trigger, sending MECHA STATUS SENSE can confirm the new operation status.
In this example, after confirming the recording standby status of the controlled device, recording is started.
Command
Controlled device status
Controlling device
Controlled device
Stopped
RECORD (Record Ready)
->
<-
CHANGED STATUS
Sends when recording standby
status starts
MECHA STATUS SENSE
->
<-
MECHA STATUS RETURN
Returns recording standby status
RECORD (Record)
->
<-
CHANGES STATUS
Sends
when
recording
status
starts