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Appendix D: Signal Connection of DI/DO
Digital Input
The GPIO connector (DIO, connector number:
signal input)). The GPIO connector has 5 digital input channels by default.
Wet Contact (default)
The
SW4
switch needs to switch to "ON" state. The GPI signals have a pull
up resistor to Vin Voltage internally.
The figure below shows how to connect an external source to one of the
input channels.
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for GPI signal (digital
92
Dry Contact:
The
SW4
switch needs to switch to "OFF" state. The GPI signal will not
have a pull up resistor internally.
The figure below shows how to connect an external source to one of the
input channels.
VTC 1031 and nROK 1031 Series User Manual
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