Trying to do a simple analog out in LabView8 imported form LV7

[avsteele]

I have a PCI-6733 DAQ board and I can set it's analog outputs in 'Measurement and Aquisition' so I know the hardware is working correctly.  I can also create a simple VI in labview 7 to set those analog outputs.  However, I dont' see any of the same components in my LV 8 installation.  I cannot figure out how to do an analog output in version 8 and if I try to simply import my LV 7 vi I get an error when it tries to load 'AO Update Channel.'  Specifically, it says, 'AO Update Channel is not a valid Labview file.'


ANy idea what is going wrong?

[Dennis_Knutson]

Your VI is using traditional DAQ and that is not installed by default with LabVIEW 8. DAQmx is however. You might want to think about updating to DAQmx as it is a much better solution. You can also download the latest version of traditional DAQ and install that it you wish.

[avsteele]

Well I have Traditional NI-DAQ ver 7.4.1 installed.  Is there some separate verison of it for LV 8 though that i could be missing?  I didnt see it on the website.  In the software page at http://digital.ni.com/softlib.nsf/MainPage?ReadForm&node=132010_US i see:

multifunction daq->traditional NI-DAQ compatability VIs v1.3
-multifunction daq->traditional NI-DAQ (Legacy) v 7.4.1

Is it possible havign LV 7 and 8 both installed could be causing me problems?

All of this aside for the moment, lets say I wanted to use daqmx to do something relaly simple like set a flat voltage on an analog output channel.  I looked through the daqmx examples and didn't see anything like that. 

Sorry for the questions but I'm starting from scratch and I'd just as soon use LV8 if it's the newest and the best.  Sadly no one I work with knows anythign about and doesn't feel it's worth the time to learn when 7.x has worked fine in the past.

[Dennis_Knutson]

You may have 7.4.1 installed but if you installed LabVIEW 8 after you installed it, you probably don't have the VIs in the LabVIEW 8 folder. If you re-install 7.4.1, then you should be able to proceed.

To set an analog output to a fixed value, it's just a DAQmx Write (analog DBL 1Chan, 1Samp), with a DBL wired to the data input.

Message Edited by Dennis Knutson on 04-28-2006 08:32 AM

[avsteele]

Well mx was supposed to have been installed, but i reinstalled it wiht the latest version, 8.1 and i got your circuit working.  Thanks a lot!