The ADU200 USB Relay I/O Interface allows control of 4 relay
contact outputs, 4 contact or TTL inputs, and 4 event counters via a USB port.
The ADU200 can effectively convert a standard PC to a powerful PLC (
programmable logic controller ). High quality PA-Series relays from Aromat offer superior
The ADU200 features 4, ISOLATED digital inputs labeled, PA0 to PA3.
Dry contact inputs such as PLC contacts or pushbuttons can be
connected to the digital inputs using the 5V power output of the ADU200. In this case, GND
and COM and shorted and contacts are connected between VDD and the appropriate digital
Figure 2 shows the connection of the same contact inputs using an
external power supply. Note that in this case, no connection is made to the VDD or GND
outputs of the ADU200.
Contact Inputs ( 2 )
The ADU200 features 4, 5 amp, relay
contact outputs labeled K0 to K3.
AC or DC loads can be controlled simply by using these contact
outputs to switch the external supply to the external load. Figures 3 and 4 show basic
View the complete ADU200 data sheet