Instrument Control (GPIB, Serial, VISA, IVI)

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problems with fluke 45 driver

I am working with the Fluke 45 driver that I downloaded from NI and I am having trouble reading the measurement.  All of the diagnostics work, but I just can't get it to display the measurement value on the front panel.  The warning I get has to do with the special read vi.  I ran the error message query vi and got back a scan from string error.  Any body know what I'm doing wrong?  I am using the serial version.
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Which example are you trying to run?

PS for NI, I find the new location for example vi's logical but it should be easier to find.
      could you add the instrument number to the find list?  e.g. 27xx is found in te examples 2701 is not found for the keithley 27xx lib.
greetings from the Netherlands
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I downloaded the most recent zip file for the fluke 45 drivers from the NI web page.  I don't have a GPIB on my instrument, so I hooked up the serial.  All the tests for the serial port worked. I ran the self test VI and it worked fine. The response was =>.  

There were two issues: The measurement example VI gave back a warning code for the "read special" VI and did not display the resultant value on the front panel.   Next,  I ran the "Query error message" VI, I got back an error for the scan from string, the explanation was that the vi sent a string that the instrument doesn't recognize, but I looked up the programming codes in the Fluke 45 manual and they match. 
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Hello Tuesday,

I have a couple questions I wanted to ask you to get some clarification. What version of Labview are you using to program with and also I wanted to know the string that you sent to the device which prompted the error?
Regards,

Roland A.
Applications Engineer
National Instruments

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Hi Roland,

I am using LV 8.0.  I just figured out why the query error message vi didn't work. I'd rather not elaborate :).   I ran the self test VI and it seems okay.  Then I ran the getting started VI and tried measuring a resistor and a simple sine wave. I disabled the ID query in the initialize VI.  I selected a measurement and ran.  The DMM did change on the display, but the value on the front panel continues to read 0.

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Hi Again Roland,

I don't know if this helps, but sometimes (not every run)  I will get an error code: 1073807339 from VISA Read.

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Hello Tuesday,

I found a good KB which goes into detail on how to troubleshoot that error. You can view it here


Regards,

Roland A.
Applications Engineer
National Instruments

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