1.1 - Control Panel Application (LJControlPanel)

The LabJack Control Panel application (LJCP) handles configuration and testing of the U3. Click on the “Find Devices” button to search for connected devices.

Figure 1-1 shows the results from a typical search. The application found one U3 connected by USB. The USB connection has been selected in Figure 1-1, bringing up the configuration window on the right side.

• Refresh: Reload the window using values read from the device.
• Write Values: Write the Local ID from the window to the device.
• Config. IO Defaults: Opens the window shown in Figure 1-2.
• Reset: Click to reset the selected device.
• Test: Opens the window shown in Figure 1-3.

Figure 1-2 shows the configuration window for U3 defaults. These are the values that will be loaded by the U3 at power-up or reset. The factory defaults, as shown above, are all lines configured as digital input.

Figure 1-3 shows the U3 test window. This window continuously (once per second) writes to and reads from the selected LabJack.

Selecting Options=>Settings from the main LJControlPanel menu brings up the window shown in Figure 1-4. This window allows some features to of the LJControlPanel application to be customized.

• Search for USB devices: If selected, LJControlPanel will include USB when searching for devices.
• Search for Ethernet devices using UDP broadcast packet: Does not apply to the U3.
• Search for Ethernet devices using specified IP addresses: Does not apply to the U3.