Traditional NI-DAQ (Legacy) Devices In Measurement and Automation Explorer 4.7 with LabView2010 under Windows 7.

[Joseph_D._Rudmin]

In Measurement and Automation Explorer 4.7, with LabView2010 under Windows 7, Traditional NI-DAQ (Legacy) Devices appears under Devices and Interfaces, and it allows me to create an SCXI-1000 entry, and it accepts "Reset for Traditional NI-DAQ".  However, it does not look for the modules in the SCXI1000, and when I request "Test", it replies "Unable to test the chassis at this time."  The NI-DAQmx device entry for the SCXI-1000 has no problems, and detects the modules just fine.  I need the Legacy DAQ for a popular old instructional tool that has no equivalent in NI-DAQmx.

[Joseph_D._Rudmin]

I just found an answer to my own question:

http://digital.ni.com/public.nsf/allkb/7B916CC4A067997D862574BB000E2AB5?OpenDocument

[Joseph_D._Rudmin]

This solution did not work.  It seems that the latest LabVIEW DAQ drivers work only with Windows 2000 and Windows XP.

[Ali M]

Hello

If you wish to use a legacy device on Windows 7, you'll need to install the Traditional NI-DAQ 7.5 beta driver. However, this driver is in beta and hasn't been rigorously tested for Windows 7. Also, it cannot be installed on a system that also has NI-DAQmx installed. This driver won't be moved past beta, as it is intended only to serve as a temporary solution while users develop replacement code using NI-DAQmx hardware. Also, see the following similar post on using a Traditional DAQ device on Windows 7.

Best regards,

Ali M

Applications Engineer

National Instruments

[samwarr11]

**  I know this is an old post but this is worthwhile sharing ***

I was struggling with a similar problem.  Labview was not able to successfully run any Traditional DAQ vi's and showed the error that the lvdaq.dll was not available.   

One of our software guys made a passing suggestion which fortunately worked out well.  He suggested to uninstall the Traditional NI-DAQ (Legacy) from the default installation location and then reinstall to a new folder in the root directory.  This is because Windows 7 (and apparently Vista) started to lock down access to the Program Files folder for security reasons.

I tried this on the Windows 7 machine and confirmed that this works for my application.   

Windows 7

Labview 2009

MAX  4.7

[dragondriver]

Hi there,

  I have the same problem now. I am wondering this solution also works for windows 7 64-bit? Thanks.

[samwarr11]

All of our systems are 32bit so I can't speak for this method in 64bit Windows.  I can't imagine why there would be a difference though.

Best,

[dstrandb · Accepted solution]

Unfortunately, the Traditional NI-DAQ (Legacy) for Windows Vista and 7 driver only functions on Windows 7 32-bit as can be seen on the driver page at the end of the first Solution paragraph. I'd recommend changing your program over to  DAQmx.

[LS1979]

For Windows 7 64 bit users is there a list of which DAQmx VI's can replace specific  NI-DAQ (legacy) 7.5 VI's?

[LS1979]

I found these pages helpful in transitioning from Traditional NI-DAQ (legacy) to NI-DAQmx

Terminology changes in DAQmx (nice comparision chart from legacy to DAQmx

Transition from Traditional NI-DAQ (legacy) to NI-DAQmx

FAQ about NI-DAQmx and Traditional NI-DAQ (legacy)

if there any other helpful pages/posts please let me know.