Pioneer DVD-V7200 Industrial DVD Player RS-232C - Manual (Page 59)

Current Address Request Descriptions
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Execution :
Command String Status Return DVD-V7200
Play mode (VCD)
?T 03213 32 minutes, 13 seconds
?T 11742 117 minutes, 42 seconds
6.5 Index Number Request (CD, VCD)
Function : Returns the current Index number
Format : ?I
Explanation : The player returns the current index number as a 4-digit integer.
Correct values will not be shown unless the player is in Random Access Mode or is
reading the lead-in/lead-out area of the disc.
Execution :
Command String Status Return DVD-V7200
?I 0102 Play mode
track 1, index 2
6.6 Frame Number Request (DVD)
Function : Returns the current frame number
Format : ?F
Explanation : The player returns the contents of the Current Frame Register.
The player may experience a conflict between the command receiving/handling and
the frame number updating. Thus, continuous frame numbers may not be available
when the system is in Playback mode.
If the command is sent to a disc that does not include frame numbers, the player
returns an error message (E04).
Current values will not be shown unless the player is in Random Access mode or is
reading the lead-in/lead-out area of the disc.
If a disc frame number cannot be read correctly, the player retains the previous value.