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RS-232C interface (continued)
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 suc-
cessfully
1.The receive completion message is returned.
[ACK]
06h
2.The execution completion message is returned.
[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] [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.
4.Error code table
ER001 : Invalid command
zUnsupported command received
zCommand 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
[STX][command][data][ETX]
02h XX XX XX XX.....XX 03h
[STX] [E R N1 N2 N3][ETX]
02h
error code
03h