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<div>Hi Tyler,</div>
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<div>I set the GPIB address of the 2nd power supply to 29, and tried to connect to the 1st power supply via a glib cable between them. None of them work with this configuration—-both displayed errors. Either one works after disconnecting glib cable from another,
after selecting the correct GPIB address. How do I connect 2 supplies (with same bus address)? Do we need another GPIB-USB adapter?</div>
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<div>Thanks,</div>
<div><br>
</div>
<div>Xiangdong </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 18, 2020 9:05 AM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; thomaso@jlab.org <thomaso@jlab.org><br>
<b>Cc:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] Found a built in averaging and referencing feature on sweep tab of Zurich lock-in amplifier</font>
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Hi Xiangdong,</div>
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<br>
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Another point about controlling two power supplies from the same computer, the power supplies each need to have a unique GPIB address.</div>
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If the power supplies have previously been used for the rotation of target polarization program, they should already be set up this way.</div>
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-Tyler<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 18, 2020 8:51 AM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; thomaso@jlab.org <thomaso@jlab.org><br>
<b>Cc:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] Found a built in averaging and referencing feature on sweep tab of Zurich lock-in amplifier</font>
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Hi Xiangdong,</div>
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I added a second copy of the Oxford power supply VI to the fsNMR LabVIEW project.</div>
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Both copies are in a new folder in the project (see attached screenshot).</div>
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You only have to put the correct GPIB address into each of the programs and run each program to control both power supplies.</div>
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-Tyler<br>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Friday, September 18, 2020 8:31 AM<br>
<b>To:</b> thomaso@jlab.org <thomaso@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] Found a built in averaging and referencing feature on sweep tab of Zurich lock-in amplifier</font>
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Hi Tyler,</div>
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After reviewing the UITF run plans, I just realized that we need to remotely drive 2 independent Oxford superconducting magnet power supplies at the same time, not just 1.</div>
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Would you please check to see if it is possible to add another VI to Rack 2 computer to realize this mode?</div>
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Thanks,</div>
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Xiangdong</div>
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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of thomaso@jlab.org <thomaso@jlab.org><br>
<b>Sent:</b> Thursday, September 17, 2020 3:54 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] Found a built in averaging and referencing feature on sweep tab of Zurich lock-in amplifier</font>
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<div class="x_x_x_PlainText">Hi Tyler,<br>
<br>
Thanks for sharing this with us! I will check it out shortly.<br>
<br>
-Tom<br>
<br>
> Hi Xiangdong and Tom,<br>
><br>
> After our meeting, I ran a test sweep with the Zurich lock-in amplifier.<br>
> While it was running I was looking around the sweep tab's options and<br>
> found a sweep mode that lets you set a number of samples to take at each<br>
> frequency during a sweep. I also saw on the "History" tab in the sweep tab<br>
> there is a "Reference" option. These two options seem to result in what we<br>
> are trying to do with the fsNMR program.<br>
><br>
> So you all can look at it, attached are three screenshots with what to<br>
> click along with the steps below.<br>
><br>
> screenshot1.jpg<br>
> 1. Go to settings tab on right of sweep tab<br>
> 2. use drop down menu to change application to "Parameter Sweep Averaged"<br>
><br>
> screenshot2.jpg<br>
> 3. Click "Advanced" button on settings tab<br>
> 4. Enter averaging settings<br>
><br>
> At this point you'd run a sweep as normal. For the reference feature:<br>
><br>
> screenshot3.jpg<br>
> 5. Go to history tab on sweep tab<br>
> 6. select result to use as reference<br>
> 7. click "Reference" button<br>
> 8. Click button to toggle reference "on"<br>
><br>
> The next sweep you'd run will be referenced to whatever you selected in<br>
> step 6. An example result after averaging is in the amplitude plot for<br>
> screenshot1.jpg and in the attached CSV file.<br>
><br>
> I look forward to hearing what you think about and find with these<br>
> options.<br>
><br>
> -Tyler<br>
><br>
><br>
><br>
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