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RS-232C interface
3. Return format
[VTR
>
controller (PC)]
The following responses are made to the
commands. If necessary, more than one
response is made.
∫
When the communication has ended
successfully
1. The receive completion message is returned.
[ACK]
06h
2. The execution completion message is
returned.
[STX] [command] [data] [ETX]
02h XX XX XX XX
.....
XX 03h
[command]:
This is the message (data) which is returned
or the execution completion message
identifier.
[data]:
This is the data to be returned. It can be
omitted.
Example:
Send command
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return message (data)
[
STX] OPL [ETX] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
[ACK] [STX] OPL [ETX]
∫
When the communication has ended
unsuccessfully
[NACK]
15h
∫
When processing is not possible due to
incorrect data or problem with the VTR
1. The receive completion message is returned.
[ACK]
06h
2. An error code is returned.
[STX] [E R N
1
N
2
N
3
][ETX]
02h
Error code
03h
4. Error code table
ER001: Invalid command
• Unsupported command received
• Command execution error
ER002: Parameter error
ER102: VTR mode error
(front loading motor)
ER103: VTR mode error (loading motor)
ER104: VTR mode error (drum, capstan system)
ER105: VTR mode error (reel system)
ER106: VTR mode error (tension system)
ER108: VTR condensation error
ER1FF: VTR system error