Yamaha PM5D Owner's Manual - Page 123
Using GPI (General Purpose Interface), Using GPI
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Using GPI (General Purpose Interface) The GPI connector on the rear panel can be used as a GPI (General Purpose Interface) input/output connector. This connector provides four GPI IN ports and twelve GPI OUT ports. For example you can use an external switch or joystick to control the PM5D's parameters, or conversely use the PM5D's keys and faders to send control signals to an external device. The following diagram is an example of an external circuit that can operate GPI via the GPI connector. (For specifications of the GPI connector pins, refer to the Appendices p.348 and p.355 at the end of the manual.) 14 15 16 17 18 19 20 21 22 23 1 2 3 4 5 6 7 8 9 10 11 24 25 12 13 GPO 1 9 GPO 2 GPO 3 1 21 14 9 GPO 4 2 21 15 GPO 5 9 GPO 6 GPO 7 3 21 16 9 GPO 8 4 21 17 GPO 9 GPO 10 GPO 11 GPO 12 21 24 9 12 21 25 9 13 GPI 1 GPI 2 GPI 3 GPI 4 22 18 10 6 23 19 11 7 Using GPI IN You can use the GPI IN ports of the GPI connector to control PM5D parameters from an external device. For example you can use an external switch to turn the PM5D's talkback on/off or to operate its Tap Tempo function, or you can use a joystick to control surround panning. 1 Connect an external device to the PM5D's GPI connector. 2 In the DISPLAY ACCESS section, press the [MIDI/REMOTE] key several times to access the GPI screen shown below. GPI IN list GPI This circuit uses four switches (GPI 1-GPI 4) to switch the GPI IN ports between active and inactive. If the polarity of a GPI OUT port is set to Low Active, and you operate the PM5D to make the GPI OUT port Active, the corresponding LED in the above circuit (GPO 1-GPO 12) will light. (If the polarity of the GPI OUT port is High Active, the LED will go dark.) GPI OUT list In this screen, the upper list is used to make GPI IN settings and the lower list is used to make GPI OUT settings. 3 In the POLARITY column of the GPI IN list, select the polarity of each GPI IN port. You can select one of the following as the polarity for a GPI IN port. • (Low active) When controlling an on/off switch-type parameter, the port will become active when the switch is grounded. When controlling a continuously-variable parameter, that parameter will be at its maximum value when the voltage is at low level (by default, 0V), and at its minimum value when the voltage is at high level (by default, approximately 5V). • (High active) When controlling an on/off switch-type parameter, the port will be active when the switch is opened or when a high-level voltage is input. 16 Remote control PM5D/PM5D-RH Owner's Manual Operating section 123