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ATEN Control System User Manual
30
Digital I/O
The four channels on the VK2100 can be used to connect Digital Input or
Digital Output hardware devices such as switches, sensors, LEDs and relays.
Each channel can be configured as either an Input (VDC), Input (Dry Contact)
or Output channel.
Digital Input (Dry Contact):
Digital inputs are hardware devices (switches, sensors, monitors) with two
circuit signals – open and closed. These two signals provide indicators from
sensors or switches of an event. An event can be the on/off power, dry contact,
sensor or switch status from a device. This information is used to trigger events
and functions through the VK2100.
Digital Input (VDC):
Digital input 12VDC hardware devices (temperature, current and monitor
sensors) provide voltage signals between 1 and 24. A digital input port detects
if a voltage is above/below a specific threshold (1 to 24). If the voltage
coming from a hardware device is higher than the set value, the VK2100 will
detect the digital input as high. If the voltage coming from a hardware device
Connects to
4 x Programmable Digital
Input Channels
Digital Input
VDC Mode:
-Input Voltage Range: 0 to 24 VDC
-Programmable Range: 1 to 24 VDC
Dry Contact Mode:
-Pull-up 2k ohms to + 12 VDC
Digital Input: Switches, Sensors
Monitors and Button Triggers.