gpib controller in charge

[phuech]

Hi,

I'm trying to use the pci-das08 card to get some temperature readings. I'm using the attached VI but I get the following error:

Error 1 occurred at an unidentified location

Possible reason(s):

LabVIEW:  An input parameter is invalid.
---
NI-488:  Command requires GPIB Controller to be Controller in Charge.

Please advise on how to overcome this

[Dennis_Knutson]

You are not using an NI DAQ board so this forum is not appropriate for your question. Also, the error is being returned by a function from the Measurement Computing function (which you did not include) and the error code almost certainly doesn't correspond to any of the defined NI codes. Check to make sure the board works with the MCC utility program and check their documentation for an explanation of their error code.

[Anthony_de_Vries]

The error message you got is a very generic one, and describes two completely different errors.   

It can be either that there's a vi with a wrong input value, or the GPIB warning.     As you don't seem to use GPIB, it's the first error.   And that simply means that somewhere you got a invalid input value on a vi.  Find out which VI is giving the error message (using 'highlight execution'), and then check its inputs.

Even if you have GPIB....  I've seen this error often, and it's never been caused by the GPIB controller sofar... 

[phuech]

Thankyou very much, I found a duff input in the VI. The cause was embarassingly simple, but the GPIB bit threw me.

Thanks again