Use DAQmx 8.8 installation with LV2012

[Zivio]

Hi,

I want to use DAQmx 8.8 with LabVIEW Version 2012. I downloaded the DAQmx drivers and installed them. But when I start my VI, LabVIEW can't find the DAQmx related VIs (e.g. start task, clear task...)

Can anybody help?

Thx in advance

Manuel

[Dennis_Knutson]

You can't use such an old version. Why don't you simply install the latest version of DAQmx?

[Zivio]

I want to use the NI USB-6525 digital I/O module to control valves in an ALD system. My code is working in principle but for short switching times I get an error: "Write to task called more frequently than device can safely allow" or something similar. From another post I learned that this problem can be solved by using DAQmx before Version 8.9. I know that this error occurs because switching the relays more frequently than 5Hz at 90% duty cycle could cause physical damage to the I/O lines. So I know that using an older Version of DAQmx would be on my own risk but I need to achieve switching times around 100ms and less.

Thanks for your reply and hoping for further help

[Dennis_Knutson]

You need to link to this other post. You should also attach a snippet of your code and the actual error code.

In any case, you cannot use the older versions of DAQmx.

[Zivio]

Hi Denis,

The error code is -201278:

"Possible reason(s): Consecutive writes to a digital line occurred more frequently than the device can safely allow." The other post I mentioned can be found here: http://forums.ni.com/t5/Digital-I-O/NI-USB-6525-Error-201278/m-p/1097522/highlight/true#M12598

I also attached snippets of the code I am using but I think this won't help in this case.

If you are sure I can't use this DAQmx Version with LabVIEW2012, I will delete it and use LabVIEW 8.x instead...

Thanks again for your reply!

Sincerely,

Manuel

[crossrulz]

According to this kb, the last LabVIEW version that can use DAQmx 8.8 is LabVIEW 8.6.