Getting an old Labview 4.1 prog working with Labview 8

[hax]

Hi,

We've an old program for a mass flow controller that was written in labview version 4.1, however labview ver. 8 does not seem to recognise many of the functions, such as AI Clear and AI read. There does not seem to be a problem with Labview 6 recognising the old program.

In short I am wondering if there is some quick fix or if the best thing to do is to uninstall ver.8, and install ver. 4.1.



Regards,

Harry

[MikeS81]

Hi Harry,

did you save it with LV6?

Mike

[hax]

I am not sure what you mean. If you mean... did I load the version 4.1 program into version 6, save it, and then load it into 8? No I didn't think of that. Do you think that should work?

I am unclear as to whether an old program is supposed to work in a later version automatically (in which case I have some other problem), or if its usual that there needs to be some changes made.

[hax]

Ok... I just tried saving it in 6 and then trying to open it in 8.2. It still doesn't work. Very bizzare the way it searches for the "bread and butter" VIs like AI Read, clear etc.

Is there any reason why I shouldn't un-install the 8.2 and return to 4.1?? Say issues with 4.1 recognising the card or some such?

[Dennis_Knutson]

Your only problem is that you did not install traditional DAQ. By default, the only driver installed is DAQmx but the older driver is on the device drivers CD. Install that or you can replace the old functions with DAQmx functions.

[hax]

Cheers Dennis, I'll have a crack at that!

Harry