Dave Smith Instruments PRO 2 - Manual (Page 104)

94 Appendix D: MIDI Implementation Dave Smith Instruments
NRPN Range Description
1040 0-5 Pedal 1 Function
0 = Breath Control
1 = Foot Controller
2 = Expression
3 = Master Volume
4 = Filter 1 & 2 Frequency, full range
5 = Filter 1 & 2 Frequency, half range
1041 0-1 Pedal Polarity
0 = Normal
1 = Reverse
1042 0-1 Aftertouch Enable
0 = Off
1 = On
1043 0-3 Aftertouch Curve
1044 0-3 Velocity Curve
1045 0-1 MIDI Thru/Out 2
0 = Thru
1 = Out 2
*Controller received, but not transmitted.
†Controller transmitted, but ignored when received.