Loadstar Sensors DQ-4000 - Manual (Page 13)

DQ-4000 DQ-4000 User's Guide
Page: 13 / 21
P/N : 033-02061 Rev. 1
3.3 Connect the uplink port to your computer’s USB port
The picture below shows the back view of the DQ-4000. The host PC’s USB port is sufficient to
power the DQ-4000 and up to 4 frequency load cells, external DC-IN is not required.
If you ordered the DQ-4000 with ZigBee, LCD or battery backup option(s), a power adapter will
be included. Plug the power-jack into DC-IN connector. The DC-IN power requirement is 9VDC-
12VDC at 2W, with Positive VDC on the center pin.
Use the included cable to connect the USB uplink port to the host PC. The power indicator LED
on the front of DQ-4000 should light up. You may also see messages on your computer
indicating that a virtual COM port is being set up.
The LCD contrast adjustment access and the pushbutton are applicable only when the DQ-4000
is equipped with the LCD option.
Figure 6: Back View – DC-IN, USB Uplink, LCD Contrast & Pushbutton
3.4 Communicate with the DQ-4000
If you are using DQ-4000 with the LoadVUE program, just start LoadVUE while the DQ-4000 is
connected to the PC. LoadVUE will automatically detect the DQ-4000 and any attached sensors.
You could communicate with and control the DQ-4000 using a terminal emulation program, such
as HyperTerminal. You may also use the appropriate function calls from your software
programming environment. The procedures described in the document “Driver Installation and
HyperTerminal Operation of iLoad Digital USB Sensors” apply to the DQ-4000 for opening the
COM port and communicating with it.
Please set your COM port baud rate (in Windows Device Manager) and the HyperTerminal baud
rate to match with DQ-4000’s baud rate. The specific commands applicable to the DQ-4000 are
described in following sections.