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vrf VEE 7.5 New feature (NI-DAQ Driver), strange behaviour

Question asked by VRFuser on Sep 7, 2005
Latest reply on Sep 7, 2005 by VRFuser

<font size=2 face="sans-serif">Hi </font>

<font size=2 face="sans-serif">Thanks for your answer.</font>

<font size=2 face="sans-serif">The card don't accept gains 2, 20 and 200.</font>

<font size=2 face="sans-serif">Regards</font>

<font size=2 face="sans-serif">Majed</font>




<font size=1 color=white face="Arial">Message from "Les Hammer" |Les.Hammer@CompleteTest.com> received on 2005-09-07 16:20</font><table width=100%><tr valign=top><td><td><font size=1 face="sans-serif">2005-09-07 16:20</font>

<td><td><font size=1 face="sans-serif"><b>"Les Hammer" |Les.Hammer@CompleteTest.com></b></font>

<font size=1 color=red face="sans-serif">Please respond to "Les Hammer" |Les.Hammer@CompleteTest.com></font>
</table>
<table width=100%><tr valign=top><td><div align=center>
</div><td><font size=1 face="sans-serif">        To:        VRF |vrf@agilent.com></font>
<font size=1 face="sans-serif">        cc:        (bcc: Majed Ali/SECRC/ABB)</font>
<font size=1 face="sans-serif">        Subject:        RE: [vrf] VEE 7.5 New feature (NI-DAQ Driver), strange behaviour</font></table>


<font size=2 color=blue face="Arial"> >  </font><font size=2 face="Arial">I am using VEE 7.51 New feature (NI-DAQ Driver) to control DAQCard-6062E from NI.</font><font size=3 face="Times New Roman">
</font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">This card has 4 measurements ranges depending on the board gain</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">gain 0.5 ------------------- +/- 10 V range</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">gain 1    ------------------- +/-   5 V range</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">gain 10  ------------------- +/- 0.5 V range</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">gain 100 ------------------ +/- 50 mV range</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial"> </font>
<font size=3 face="Times New Roman"> </font>
<font size=2 color=blue face="Arial">I haven't used that card, but on the one I have used gain of 1 is +/- 10V, ... gain of 200 is +/- 50mV</font><font size=3 face="Times New Roman">
</font><font size=2 color=blue face="Arial">
</font><font size=2 face="Arial">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">The gain parameter in the new feature (NI-DAQ Driver) accept Int16 data type only,</font><font size=2 color=blue face="Arial"> </font>
<font size=2 color=blue face="Arial">></font><font size=2 face="Arial">  which means that I can't write gain 0.5 to change the board range to +/- 10 V.</font><font size=3 face="Times New Roman"> </font><font size=2 color=blue face="Arial">
</font><font size=3 face="Times New Roman">> </font><font size=2 color=blue face="Arial"> </font><font size=2 face="Arial">Another strange behaviour is that when I am writing gain 1 the board range changes to +/- 10 V in stead of +/- 5 V.</font><font size=3 face="Times New Roman">
</font><font size=2 color=blue face="Arial">
Both problems would be solved if the card works the way my other card works ... gains 1, 2, 20 and 200.</font>
<font size=2 color=blue face="Arial">Try that and see what happens.</font>
<font size=3 face="Times New Roman"> </font>
<font size=2 color=blue face="Arial">--Les Hammer</font><font size=3 face="Times New Roman"> </font>
<font size=3 face="Times New Roman">
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