User`s guide

46 Serial Control
MIDI Show Control
Serial commands that may be used with the MIDI Show Control protocol are:
Command Function
Go Play the specified file
Stop Stop video playback
The format for a MIDI Show Control message is:
F0H 7FH <device_ID> 02H <control_type> <command> <data> F7H
Where:
<device_ID> = 7FH for wildcard.
= 00H – 6FH, individual ID’ s
(See “ Web Pages” Section for how to set the MIDI
Device ID)
< control_type > = 30H (general video devices)
<command> = 01H, Go
= 02H, Stop
<data> = File number as five ASCII digits (00000 - 99999)
The “ H” following each command indicates that the command bytes are in
hexadecimal.
Go
Description: This command causes the Digital Video Machine 2 to play the specified file.
This command sends a response when it is executed, and another when the
playback is complete.
Command bytes: F0H 7FH ID 02H 30H 01H aaH bbH ccH ddH eeH F7H
where aa through ee correspond to the ASCII representation of the file number
(Leading zeroes are not required).
Example: Go file 76 on device 4F: F0H 7FH 4FH 02H 30H 01H 37H 36H F7H
Stop
Description: This command causes the Digital Video Machine 2 to stop playback
Command bytes: F0H 7FH ID 02H 30H 02H F7H