Peavey PC1600X User Manual page 28

ACCESSING GLOBAL SETTINGS WITH SPECIAL MIDI MESSAGES
Many MIDI products use system exclusive command strings that have a MIDI channel or device number as
one of the bytes. These numbers are used to differentiate the unit from an identical unit on the same MIDI
stream. Being able to change these numbers allows you to use one set of PC1600X presets for multitude
units of the same product.
Instead of hard coding these values into the strings, you can designate a "gc" (global channel) byte or a "dv"
(device number) byte in the strings. then just go to UTILITY and change the ChOut (1st screen) and
th
DevNum (7 screen) parameters.
Whenever the PC1600x sees a "gc' in a string, it will transmit the ChOut parameter minus 1 (0-15h). When it
sees a 'dv" it will transmit the DevNum parameter (0-127 / 00h-7Fh)
Additionally, the "gc" designation can be placed after a channel status byte (80h through EFh). In this case,
the "gc" will channelize the status bite, as opposed to it being sent as a separate byte. The status and "gc"
bytes will be connected by a hyphen to show that they are being combined into a single byte upon
transmission. The following screen would program fader //1 to send Program Changes on the global out
channel. The zero after the C will get replaced by ChOut -1 (0 - F), therefore making it meaningless (A CF
would make no difference to the fader function).
To program one of these values in a string (fader, CV, button or set-up, edit the byte value up to FD or FE, at
which point you will see "dv" or "ac" on the display, respectively (instead of "FD" or "FE")
NOTE: In button and setting strings, the first byte of the string cannot be a "dv" or "gc" This allows the user
to send the raw values add (undefined) and few (active sensing) over MIDI. if desired. by programming them
as the first byte.
FDR01: String
C0-gc pr
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Peavey PC1600X User Manual (rev-h)