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 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]

[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 N1 N2 N3]

[ETX]

02h

error code

03h

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

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