Parameter Control - Yamaha DME32 Owner's Manual

216
Chapter 11—GPI Interface

Parameter Control

The following table describes how buttons (ON/OFF parameters),
rotary controls and sliders, and pop-up menus can be controlled
using a normally open switch.
High = switch closed Low = switch open
Terminal
Usage
(ON/OFF parameters)
High = ON
Low = OFF
Normal
High = OFF
Low = ON
Reverse
Toggles between ON and OFF
when IN changes from low to
high (i.e., when switch
Low-to-high
pressed)
Toggles between ON and OFF
when IN changes from high to
low (i.e., when switch
High-to-low
released)
The next table describes how buttons (ON/OFF parameters),
rotary controls and sliders, and pop-up menus can be controlled
using a 10k-ohm linear-scale potentiometer. By connecting the
potentiometer to the IN, +V, and GND terminals, continuously
variable parameter control is possible.
High = potentiometer max. Low = potentiometer min.
Terminal
Usage
(ON/OFF parameters)
High = ON
Low = OFF
Normal
High = OFF
Low = ON
Reverse
Toggles between ON and OFF
when IN changes from low to
high (i.e., when potentiome-
Low-to-high
ter raised)
Toggles between ON and OFF
when IN changes from high to
low (i.e., when potentiometer
High-to-low
lowered)
1. Transition between low and high occurs at the center position.
DME32—Owner's Manual
Buttons
Rotary controls & sliders
High = max. value
Low = min. value
High = min. value
Low = max. value
Toggles between min. and
max. values when IN changes
from low to high (i.e., when
switch pressed)
Toggles between min. and
max. values when IN changes
from high to low (i.e., when
switch released)
10k-ohm linear potentiometer
1
Buttons
Rotary controls & sliders
Continuously variable,
High = max. value
Low = min. value
Continuously variable,
High = min. value
Low = max. value
Toggles between min. and
max. values when IN changes
from low to high (i.e., when
potentiometer raised)
Toggles between min. and
max. values when IN changes
from high to low (i.e., when
potentiometer lowered)
Normally Open Switch
GPI connection
IN
Pop-up menus
High = top setting
Low = bottom setting
High = bottom setting
Low = top setting
Toggles between top and bot-
tom settings when IN changes
from low to high (i.e., when
switch pressed)
Toggles between top and bot-
tom settings when IN changes
from high to low (i.e., when
switch released)
GPI connection
IN +V
10k ohm linear
potentiometer
Pop-up menus
Continuously variable,
High = top setting
Low = bottom setting
Continuously variable,
High = bottom setting
Low = top setting
Toggles between top and bot-
tom settings when IN changes
from low to high (i.e., when
potentiometer raised)
Toggles between top and bot-
tom settings when IN changes
from high to low (i.e., when
potentiometer lowered)
+V
GND