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3.
Command format
Command format overview
The command format is as follows.
Byte 1
Byte 2
Byte 3
LF
ID
Commands begin with a "line feed (LF)," end with a "carriage return (CR)," and are based on the ASCII format.
The type following the LF is the machine ID. The machine ID is described later.
Commands are expressed using two ASCII bytes.
The byte string following the command expresses the data, and is between 0 bytes (for a command that has no
data) and a maximum of 123 bytes. For details on the data, refer to the detailed explanation for each command. For
commands that use 0--9 and A--F as data values, uppercase characters are used for A--F.
Example commands
Example 1:
Transmitting a PLAY command to a controlled device of ID=0
When the controlled device is in Stop or Play-Ready mode, this command will initiate playback on the
controlled device.
The PLAY command is [12], and is transmitted as follows.
ID
LF
0
ASCII
0Ah
30h
HEX
Example 2:
Telling a controlled device of ID=0 to perform a direct search for take 123
The command "DIRECT TRACK (TAKE) SEARCH PRESET [23]" is transmitted to perform this action.
The data bytes consist of ASCII in two-byte units.
For the command "DIRECT TRACK (TAKE) SEARCH PRESET," the take number is specified as follows.
Data 1
Tens digit of the specified take number
Data 2
Ones digit of the specified take number
Data 3
Thousands digit of the specified take number
Data 4
Hundreds digit of the specified take number
Thus, the transmitted command is as follows.
ID
LF
0
ASCII
0Ah
30h
HEX
Machine ID
The HS-8 uses Machine ID=0 to receive commands and transmit returns.
If a command with an ID other than Machine ID=0 is received, that command is ignored.
If an unsupported command is received, the HS-8 will transmit ILLEGAL [F2].
Byte 4
Byte 5
Command
Data 1
Command
1
2
CR
31h
32h
0Dh
Command
Data: take 123
2
3
2
32h
33h
32h
TASCAM HS-8 RS-232C Protocol Specification
Byte 6
Byte 7
Data 2
Data 3
3
0
1
CR
33h
30h
31h
0Dh
4
Byte 8
...
Byte n
Data 4
...
CR
TEAC Corporation
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