Roland PC-70 Owner's Manual page 22

Controllers 96 and above (NRPN/RPN, Channel Mode Messages)
Controller No. Control Function
96.
97.
98.
99.
100.
101.
102–120
121–127
fig.controller.e
[Procedure]
1.
Set the MIDI transmit channel to match that of the desired Part.
2.
Press MIDI/SELECT [3] (LED will show "SEL").
3.
Press the F4 white key (CC SELECT) [13].
4.
Select the Controller Number by pressing keys in the NUMERIC ENTRY section [17].
5.
Press ENTER [19].
6.
Press MIDI/SELECT [3] again to confirm your selection. Now you can use the DATA
ENTRY slider to transmit the value of the specified Controller Number.
22
Data Increment
Data Decrement
Non-Registered Parameter Number LSB
Non-Registered Parameter Number MSB
Registered Parameter Number LSB
Registered Parameter Number MSB
Undefined
Reserved for Channel Mode Messages
Select CC Numeric Key Pad Enter