Troubleshooting... Logger Pro Cannot Find Interface
When Logger Pro is launched, it looks for a connected device. Make certain that you have a device connected to a serial or USB port of your computer and that it has power. If it detects a device, an icon will appear in the left-hand side of the toolbar.
Examples
LabQuest is connected to the computer. No sensor is connected to LabQuest.
LabPro is connected to the computer. No sensor is connected to LabPro.
Go! Link with a pH sensor is connected to the computer.
Go! Temp is connected to the computer.
Go! Motion is connected to the computer (with Live Readouts enabled).
A Wireless Dynamic Sensor System (WDSS) is connected to the computer.
An Ohaus balance is connected to the computer.
A Spectrometer is connected to the computer.
A GPS unit is connected to the computer.
Logger Pro can also collect data simultaneously from multiple devices.
No Interface Detected
If Logger Pro does not detect an interface, it will launch a generic file. You will not be able to take data until Logger Pro detects an interface. Below are troubleshootings tips. If you are using a serial cable, there are additional tips below.
- There may be two or more copies of Logger Pro running. A second copy of Logger Pro would require another free serial or USB port. It is recommended that you run only one copy of Logger Pro. Quit other copies of Logger Pro.
- The interface is not turned on or supplied with power. Check to ensure the AC power supply is firmly connected and that the batteries are strong enough.
- The interface could be in a "hung" state. Try power cycling the device by removing then restoring power (AC or batteries). You should also try rebooting your computer.
- USB drivers may not have been properly installed. If you are trying to use the USB connection to LabPro, make sure you followed the directions during the Logger Pro installation for installing USB drivers and rebooted your system.
Using Serial Cables and a Windows Computer
If you are connecting the LabPro using a serial cable or an Ohaus balance on a Windows computer, or you will need to choose Connect Interface from the Experiment menu. Choose the port to which the device is attached. Note: Only Windows computers can use serial cables with Logger Pro. Macintosh computers cannot use the serial cables.
If Logger Pro does not detect the device, you will be issued a warning with troubleshooting suggestions. This process will continue until the program detects tan interface or you decide to continue without the interface attached. Try the following if you are having problems:
- The serial port may be in use by another program such as Palm Hot Sync Manager, fax or dial-up networking program. Quit other programs that might use the serial. Often an internal modem will disable one of the serial ports. Disable or remove the internal modem to remove the conflict.
- The communications cable is not firmly attached or is attached to the wrong port. On Windows PCs it is difficult to tell from the back of the computer which port is COM1, COM2, COM3 or COM4. Consult your owner's manual.
- Confirm that the cable is properly attached to both the computer and the interface.
- The cable could be bad; try using another cable.
- The serial port may not be operating properly. There may be a conflict with an internal modem or other device. Be sure all devices have unique IRQ addresses (Windows only). Try the serial port with another serial device such as a modem or printer to confirm its operation.
- If you are using a serial mouse on your computer, shut your computer down, physically move the mouse connector from its current serial port connection to the one you are attempting to use, then restart your computer. If Windows finds the mouse, try the interface on the port the mouse was previously using. If Logger Pro continues to not see the interface, your interface or its cable is at fault. If the mouse does not work, you can be assured that the serial port is not functional.