RME Fireface UCX II 40-Channel USB-B Audio/MIDI Interface - Manual (Page 87)

User's Guide Fireface UCX II © RME
87
Examples for sending MIDI strings:
- Set input 1 to 0 dB: B0 66 68
- Set input 17 to maximum attenuation: B1 66 0
- Set playback 1 to maximum: B4 66 7F
- Set Output 16 to 0 dB: B8 75 68
Note: Sending MIDI strings requires to use programmer's logic for the MIDI channel, starting
with 0 for channel 1 and ending with 15 for channel 16.
Further functions:
- Trim Gains On: BC 66 xx (BC = MIDI channel 13, xx = any value)
- Trim Gains Off: BC 66 xx or select a submix
Select submix (fader) in third row:
- channel 1/2: BC 68/69 xx
- channel 3/4: BC 6A/6B xx
etc.
Input Gain control is available via CC9, value range as the gain itself (up to 65). The MIDI
channel determines the controlled channel, from 1 to 16 (UCX II: 1 to 8). For this to work, Enable
MIDI Control in the Options menu has to be activated.
The
Reverb and Echo User Presets can be changed via MIDI CC: B2 0C nn for Reverb preset
1 to 16, B3 0C nn for Echo preset 1 to 16
28.6 Stand-Alone MIDI Control
When not connected to a computer, the Fireface UCX II can be controlled directly via MIDI. The
stand-alone MIDI control mode is activate d in the unit’s menu Options, Hardware/Diagnosis,
Standalone MIDI .
Note: When not needed the stand-alone MIDI operation should not be active, as the unit will
react on MIDI notes after power-on, and will also send MIDI notes.
Control is performed via both the
Mackie Control protocol and some standard MIDI functions
(see below). In stand-alone mode not all functions known from TotalMix are available, because
some of them aren't hardware, but software routines. Functions like
Talkback , Mono , Solo , rela-
tive ganging of the faders, Monitor Main and Monitor Phones are realized by complex software
code, therefore not available in stand-alone MIDI control operation.
Still many functions, and especially the most important functions to control the Fireface UCX II,
are implemented in hardware, thus available also in stand-alone mode:

All faders and pans of the first and third row

Mute of the input signal per channel

Ganging via 'Select'

Choice of the routing destination, i.e. the current submix

Sending of LED and display data to the MIDI controller
The second row (software playback) is skipped. The Fireface UCX II sends display data as brief
information, enabling an easy navigation through lines and rows. Other data like PAN and mis-
cellaneous status LEDs are supported as well.