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Troubleshooting Parallel Port Device Installations

Hardware: Legacy DAQ Devices>>Multifunction DAQ>>DAQPad-MIO-16XE-50

Problem: What can I do to troubleshoot the installation of my legacy parallel port DAQPad?

Solution: This troubleshooting advice assumes that you have already installed your DAQPad with the Add New Hardware Wizard.
  1. If you do not see your DAQPad listed under "Devices and Interfaces" in the Measurement & Automation Explorer (MAX), then use View » Refresh (or hit the F5 key) to refresh the list of Devices and Interfaces. MAX 1.x was configured to automatically refresh the list of Devices and Interfaces every time you opened it, but this can cause MAX to load slowly, so MAX 2.x took the opposite stance (no refresh by default). If you now see your DAQPad in the list of Devices and Interfaces, you should be fine.

    Otherwise, check your NI-DAQ driver version. NI-DAQ 6.5 was the first version of NI-DAQ to support the MAX interface, so you may need to update your NI-DAQ driver (if possible for your operating system), in order to see your DAQPad in the list of Devices and Interfaces. You may determine your NI-DAQ version by going to Start » Settings » Control Panel » Add/Remove Programs, or by looking under the "Software" heading in MAX (depending on your version of NI-DAQ).

    Note: If you have NI-DAQ 6.8,then uninstall it, download the lastest version of NI-DAQ (NI-DAQ 6.9 or higher), which corrects a known problem with the parallel port DAQPads and NI-DAQ 6.8.

    If your version of NI-DAQ is compatible with your DAQPad and you still can't see it in MAX, then you may have an incomplete or corrupt NI-DAQ installation. Try uninstalling your current version of NI-DAQ and install the latest NI-DAQ driver that supports your DAQPad.


  2. If you see this window:

    Then make sure that your DAQPad is connected, that it is powered on, and that the parallel cable is correctly and firmly connected both to the DAQPad and to your parallel port on your computer. Then close MAX, re-open it, go to under "Devices and Interfaces", and select your DAQPad. Right-click on the entry for your DAQPad and select "Test Panel" from the pop-up menu. Press the Test Resources button to test your resources again.

  3. If you are having problems with your LPT port, then you can usually delete the printer port entry from the Device Manager and click the Refresh button to force Windows to find the port again. It should find a standard printer port after the refresh. You can also use the Add New Hardware Wizard to add the port yourself.

  4. If your DAQPad is still not configuring correctly or it is not being recognized, then check your printer port by connecting a printer to it. Make sure that your printer can print correctly with that LPT port.

  5. If you see this window:

    • Make sure that you do have an EPP or a Standard Centronics (also known as Normal, Standard, or Unidirectional) parallel port.
    • The LPT port should have an input/output range, interrupt request (IRQ) assigned. Disable any DMA (Direct memory access) for the LPT port.
       
       


Related Links:

Attachments:


1200fail.gif - 1200fail.gif
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Report Date: 06/01/2006
Last Updated: 08/06/2006
Document ID: 3Y0AL488

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