TT MIDI-Switcher - Version 2019
Switching via MIDI commands
The TT-MIDI switcher can also be switched via MIDI, of course. In the default setting, the
module expects the commands on MIDI channel 1.
To switch outputs A1 to A4, program change messages must be sent to the MIDI module,
followed by the program number. In the default configuration, PC 1 is assigned to output
A1, PC2 to output 2 and so on. So if PC 3 is sent to the MIDI switcher, the output A3 is
switched ON and the outputs A1, A2 and A4 are set to OFF (channel switching).
However, to address the outputs A5 to A8 directly, "Controller Change" commands must be
used.
The controllers are assigned to the outputs as follows:
Controller 85 to A5
Controller 86 to A6
Controller 87 to A7
Controller 88 to A8
To turn on output A6, a CC command must be sent on MIDI channel 1 to the MIDI switcher,
which addresses the controller 86 and includes a value greater than 64. Conversely, a value
less than 64 switches the output off.
Besides the standard ON / OFF switching, the controllers 89, 90, 91 and 92 enable a
"toggle" mode. The current switching state of the output is simply reversed: ON turns OFF
and OFF turns ON. The value sent to the controller change has no influence and can be
arbitrary.
Since firmware version 2.1, outputs A1 to A4 can also be switched via controller change
commands. The output is switched ON with a value greater than 64. OFF switching is not
provided.
The following overview shows all available commands, assignments and possible
parameters
Program Change
PC 1 - switches A1 ON - A2 OFF - A3 OFF - A4 OFF
PC 2 - switches A1 OFF - A2 ON - A3 OFF - A4 OFF
PC 3 - switches A1 OFF - A2 OFF - A3 ON - A4 OFF
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