Pioneer Industrial DVD Player DVD-V7400 - Manual (Page 26)

Command Descriptions
Explanation : If the command is sent while the player is in Random Access
mode, the picture moves one Frame forward or one Frame in reverse. After
the move is accomplished, the player enters Still mode and returns the
completed status message.
If the disc program does not allow a pause, the player ignores the command
and returns an error message (E04).
NOTE: A single DVD Step Reverse is equal to between 15 and 30 Frames
when REV STEP/REV PLAY is set to VOBU on a ADV. SETUP menu.
Selecting the FRAME option causes the player to step back by one Frame.
NOTE: A Video CD disc does not support the Step Reverse command
Execution :
String Status Return DVD player
SF<CR> Moves 1 Frame forward Play mode
R<CR> Still mode
SRSRSR<CR> Moves 3 Frames backwards Play mode
R<CR> Still mode
5.10 Scan Forward
5.11 Scan Reverse
5.12 Scan Stop
Function : Playback moves quickly forward or in reverse
Format : NF (Quick Forward scanning of the disc)
NR (Quick Reverse scanning of the disc)
NS (Stop Quick Forward scanning and return to normal
playback)
Explanation : If the command is sent while the player is in Random Access
mode, the screen proceeds forward (NF) or in reverse (NR) quickly. When
scanning is finished, the player resumes the Random Access mode and
returns the completed status message.
If the SCAN command is sent while the player is in Fast Forward or Reverse
Playback, the player enters Scan mode.
Once the NS command is sent, the player resets to the normal Playback
mode and returns the completed status message.
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