M-AUDIO DigiPatch - Manual (Page 18)

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Appendix 4 - PC “Panel” Software
The PC Windows application — DigiPatch Panel™ — included with
your unit, is a remote control program that allows you to control up
to fifteen units through MIDI system exclusive messages. It requires
a PC with a 80386 processor or greater, Windows 3.1 or later, and
supports MIDI interfaces with software drivers that adhere to the
Windows multimedia extensions (MME).
To install the program onto your hard disk, run SETUP.EXE from the
provided floppy. The SETUP.EXE program will ask you for a subdi-
rectory to install the DigiPatch Panel™ program to, then uncompress
and install the application. Once installed, the program’s operation
is straight forward. There are two modes of MIDI communication:
1) Single Ended Mode. In this mode the computer doesn’t really
know (or care) about how many DigiPatch units are connected. It
depends on you to tell it how may units are present, and how many
Patchbay Windows to create. It transmits one-way system exclusive
messages, and never waits for an acknowledge or reply. This mode
is convenient when you want to control your DigiPatch unit(s) from
your computer and when ‘MIDI In’ cables and connectors are scarce.
2) Two Way Mode. In this mode the computer scans for DigiPatch
units using system exclusive messages, and creates a Patchbay
Window for each unit it finds. Upon initialization, each window
reads all programs and the edit buffer contents from its correspond-
ing unit into the computer’s memory, and saves the data into the
application’s preferences file (in the System Preferences folder). If no
units are found, the program reverts to Single Ended Mode and cre-
ates one or more Patchbay Windows, depending on the contents of
the preferences file.
In all cases, DigiPatch units should be MIDI wired in a series. That
is, take the ‘MIDI out’ of you computer interface and plug it into the
‘MIDI in’ of the first DigiPatch unit. Take the ‘MIDI out’ of your first
DigiPatch unit and connect it to the ‘MIDI in’ of the second, and so
on. Finally, if you want to run the app in Two Way Mode, you must
connect the ‘MIDI out’ of the final DigiPatch unit to the ‘ MIDI in’ of
your computer interface.