Yamaha V4.0 DME Designer V4.0 Owners Manual - Page 112

Chapter 3 Main Panel Window GPI About GPI GPI is an abbreviation for General Purpose Interface. Using GPI input and output, DMEs can be remotely controlled from custom-made controllers or external equipment. The number of GPI ports depends on the type of device. Sets GPI input/output for each DME. Using GPI input data, you can switch DME scenes and change component change component parameters. Refer to the DME owner's manual for information on making GPI connections and other hardwarerelated issues. NOTE Only users for whom the [Operation Security]  [Edit] checkbox has been checked can make GPI settings. NOTE This cannot be set when online. NOTE Does not apply to SP2060 units GPI Input/Output Setup Example  Control Faders (Levels and On) via a CP4SF A CP4SF control panel connected to the GPI terminal can be used to control the faders (Level and On parameters) of Fader and Mixer components. By assigning the component's Level and On parameters via the Parameter Value Edit function in the GPI IN field it becomes possible to use the CP4SF faders and switches to control the assigned Level and On parameters. If the port assigned to the Level parameter is set to [Min]=-INFINITYdB, [Max]=10.00dB, [Terminal]= , the parameter will be controlled in proportion to the input voltage (= fader position). The minimum input voltage will produce a level setting of -∞dB, and the maximum input voltage will produce a level setting of 10.00dB. If the port assigned to the On parameter is set to [Min]=OFF, [Max]=ON, [Terminal]= , the parameter will toggle between ON and OFF each time the input voltage goes from low to high (= the moment that the switch is pressed). By assigning the component's On parameter via the Parameter Value Edit function in the GPI OUT field, the CP4SF switch LED can be toggled by the ON parameter. If [Terminal] is set to , a high level will be output when the On parameter is on, lighting the LED. 112 DME Designer Owner's Manual