RS-232C Interface
4)Command list 
Key commands
S e n d command
OSP (STOP)
OEJ (EJECT)
OPL (PLAY)
ORW (REWIND)
OFF (FAST
FORWARD)
OPA (PAUSE)
ORC (REC)
ORP (REC
PAUSE)
OAF (ADVANCE FIELD)
OAR (ADVANCE REVERSE FIELD)
Description of operation
All the VTR’s operations are stopped, and the VTR is set to the stop mode.
Cassette is ejected.
Playback is commenced.
The tape is rewound.
The tape is fast forwarded.
This is the pause or pause release command.
When the VTR is in the playback mode, it is set to the still- picture playback (STILL); when it is in the recording mode, it is set to the pause (REC PAUSE) mode. The VTR’s previous mode is restored when this command is sent again.
Recording is commenced.
The recording pause (REC/PAUSE) mode is established when the VTR is in the
When the VTR is in the
When the VTR is in the
Data transmitted by | Data received in |
personal computer | response from VTR |
[STX] OSP [ETX] | [STX] OSP [ETX] |
[STX] OEJ [ETX] | [STX] OEJ [ETX] |
[STX] OPL [ETX] | [STX] OPL [ETX] |
[STX] ORW [ETX] | [STX] ORW [ETX] |
[STX] OFF [ETX] | [STX] OFF [ETX] |
[STX] OPA [ETX] | [STX] OPA [ETX] |
[STX] ORC [ETX] | [STX] ORC [ETX] |
[STX] ORP [ETX] | [STX] ORP [ETX] |
[STX] OAF [ETX] | [STX] OAF [ETX] |
[STX] OAR [ETX] | [STX] OAR [ETX] |
Status command
Send | Description of operation | |
command | ||
| ||
QOP | This command inquires as to the operation mode of the | |
(OPERATION | VTR. The VTR returns one of the following codes in | |
MODE) | response to the QOP command. |
Data transmitted by | Data received in | |
personal computer | response from VTR | |
[STX] QOP [ETX] | [STX] | [ETX] |
VTR operation mode | Code | |
STOP |
| OSP |
EJECT |
| OEJ |
FF |
| OFF |
REW |
| ORW |
PLAY |
| OPL |
STILL |
| OPP |
RECORD |
| ORC |
REC PAUSE |
| ORP |
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