Pc1600x has 3 fader "mode's", Merge, Replace and Update.
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The “mode” parameter determines how matching incoming controller messages will be handled. The three modes
are as follows:
Merge:
Incoming controller messages that match a fader are always passed through the PC 1600x. The MIDI data
generated from fader movement is merged with the data passing through the unit.
Replace:
Incoming controller messages that match a fader are passed through the PC 1600x until the fader is moved. The
matching incoming controller messages are filtered until the Exit button is pressed while on the Main page. This
mode allows direct replacement of data in an existing stream of controller messages.
Update:
Incoming controller messages that match a fader are passed through the PC 1600x until the fader is moved. The
data sent when the fader first moves will always match the last value that passed through the PC 1600x, regardless
of the position of the fader. The matching incoming controller messages are filtered until the Exit button is
pressed while on the Main page. This mode allows seamless modification of data in an existing stream of controller
messages.
The Update function will give smooth control, as long as you send the midi through the Pc1600x.