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Hi Xiangdong,</div>
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I've started the LabVIEW installation.</div>
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It tends to take a while so it might be until the morning when it finishes installing.</div>
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<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Tyler<br>
</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Monday, September 28, 2020 3:38 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
</div>
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Pablo, Peter and you are all admins for the HDICEMIRROR3 PC now.</div>
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<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Xiangdong</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Monday, September 28, 2020 3:14 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Xiangdong,</div>
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<br>
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I've been able to copy the fsNMR LabVIEW project to HDICEMIRROR3.</div>
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<br>
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However, I do not have admin privileges so I put it in C:/Users/Public/fsNMR - LATEST rather than on the hdice user's desktop.
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<br>
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I also noticed that that PC does not have LabVIEW on it. If I am made admin, I can get it installed.</div>
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<br>
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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> Monday, September 28, 2020 3:01 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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The HDICEMIRROR3 is yours for now.</div>
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I'll connect GPIB adapter on that PC within a few minutes.</div>
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The IPS is locked inside the UITF so it's not accessible.</div>
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Thanks,</div>
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<br>
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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> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Monday, September 28, 2020 2:44 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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<br>
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You can connect the GPIB adapter at any time.</div>
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<br>
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I've made the copy of the fsNMR project from HDiceNMR2 and have logged off.</div>
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<br>
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If you're not doing anything on HDICEMIRROR3, I can log on to that and move the project.</div>
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<br>
</div>
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Tyler<br>
</div>
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<div id="x_x_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> Monday, September 28, 2020 2:31 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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The Main 2.vi is connected to the 2nd IPS with 0A current output. You can have non-invasive logon now till 3pm. If that's enough, please go ahead. Send me an email after you logout.</div>
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<br>
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The new PC is accepting the HDice account now. </div>
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Do I have to connect the GPIB adapter now? </div>
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Thanks,</div>
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<br>
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Xiangdong </div>
<div id="x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Monday, September 28, 2020 2:06 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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<br>
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Having the second PC run the second power supply using the second GPIB adapter would certainly work.</div>
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<br>
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I'd just need to very briefly remote log in to HDiceNMR2 to make a copy of the latest fsNMR project and then I can set up the LabVIEW program on HDICEMIRROR3.</div>
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<br>
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It'd only take a few minutes to copy the files and nothing would have to be closed.</div>
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<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Just let me know if/when you'd want me to make the copy and set up the new PC.<br>
</div>
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<br>
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Tyler<br>
</div>
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<br>
</div>
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<div id="x_x_x_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 Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Monday, September 28, 2020 2:02 PM<br>
<b>To:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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I now have a new pc, <span style="color:rgb(69,84,100); font-family:SourceSansPro,"Helvetica Neue",Helvetica,Arial,sans-serif; font-size:12px; text-align:left; background-color:rgb(255,255,255); display:inline!important">
HDICEMIRROR3</span>, and a new GPIB-USB-HS+ adapter in my hand. While working on integrating both Oxford supplies offline, could we setup the new PC to run the 2nd supply now so we get through the UITF tests for the next 7 days? We'll have ~3 weeks to implement/test
the Dual IPS Controls.vi. The liquid helium will stolen for another user for 3 weeks starting next Monday></div>
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<br>
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It needs a copy of labview installed on the HDICEMIRROR3.</div>
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<br>
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What do you think?</div>
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Thanks,</div>
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<br>
</div>
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Xiangdong</div>
<div id="x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_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> Monday, September 28, 2020 12:26 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
I don't know how I replied your email to myself in the last few days. Here I forward them to you.</div>
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<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
The 2nd power supply was configured as GPIB-28. </div>
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<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Thanks,</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Xiangdong</div>
<div id="x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_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 25, 2020 4:37 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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</div>
<div>
<div>Hi Tyler,</div>
<div><br>
</div>
<div>The vi failed after 5 seconds after pushing run button. (3 times)</div>
<div><span style=""><br>
</span></div>
<div><span style="">3 pictures are attached here.</span></div>
<div><span style=""><br>
</span></div>
<div><span style="">Please take a look. I am in front of the power supplies now. I can watch it if you want to test.</span></div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div>Xiangdong </div>
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<div id="x_x_x_x_x_x_x_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 25, 2020 2:35 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Thanks. I'll test it as soon as the meeting finished.</div>
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<div id="x_x_x_x_x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 25, 2020 2:32 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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<br>
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I've added the new VI to the fsNMR LabVIEW project.</div>
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<br>
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There is now a new VI in the project called "Oxford iPS - DUAL IPS CONTROLS.vi" (see attached LabVIEW project screenshot.png).</div>
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<br>
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The new VI is essentially the same as the first VI but with all controls and readbacks for two Oxford power supplies. Attached is also a screenshot of the new VI. All you'd need to do is assign and use the correct GPIB for each power supply.<br>
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I did not test anything since you said the GPIB cables were disconnected between the two power supplies.</div>
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<br>
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I have now logged off of HDiceNMR2.</div>
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<br>
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Tyler<br>
</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_x_x_x_x_x_x_x_x_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 25, 2020 2:23 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Charles exited labview. He will stay nearby.</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_x_x_x_x_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 25, 2020 2:06 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Let me call someone and let you know.</div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 25, 2020 2:04 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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Just to be cautious, it'd be better if the running Oxford supply VI is terminated.</div>
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<br>
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I don't think it'd cause a problem, but I do need to access the LabVIEW project and it'd be better to err on the side of caution and have the LabVIEW project closed.</div>
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<br>
</div>
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Tyler<br>
</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_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 25, 2020 2:01 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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Great, proceed. I was called back to my office for a PAC48 prep meeting. Do I have to ask someone to terminate the Oxford supply VI? The current is 0 right now.</div>
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<br>
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Thanks,</div>
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<br>
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Xiangdong</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 25, 2020 1:48 PM<br>
<b>To:</b> Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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<br>
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I don't anticipate it taking very long to put the new VI in the project.</div>
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Since the GPIB cable is not connected, my plan will be to remote log on to HDiceNMR2 and only copy the new VI.</div>
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<br>
</div>
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After that, whenever the GPIB cable is reinstalled, you can test the VI any time.</div>
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<br>
</div>
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Tyler<br>
</div>
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<br>
</div>
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<br>
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<br>
</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_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 25, 2020 1:42 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Tyler,</div>
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<br>
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How long do you need to implement the new VI? The UITF is down today so you can make the necessary change. Please let me know when you want me to test and when I should connect them with the GPIB cable.</div>
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<br>
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Because we are hooking on the real magnets, NO MORE THAN 1 ampere should be used to test the VIs.</div>
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Thanks,</div>
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<br>
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Xiangdong</div>
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<br>
</div>
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<br>
</div>
<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_appendonsend"></div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_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 Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Friday, September 25, 2020 12:15 PM<br>
<b>To:</b> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> [dsg-hdice] Oxford IPS GPIB issues - new VI developed to allow control of both power supplies</font>
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Hi Xiangdong,</div>
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<br>
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After talking to Peter on the phone and in a DSG status meeting, I was able to identify the cause of the issue with running both Power Oxford Supply controls programs at the same time. To resolve the issues, I combined the control of both power supplies into
one VI with structuring to prevent the PC from trying to talk to the two power supplies at the same time.<br>
</div>
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<br>
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Since NMR rack 2 is "locked down" in the UITF, we'd have to wait until the next time there is an access or something to where we could remotely log in to the PC to add the new VI to the LabVIEW project.</div>
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<br>
</div>
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Tyler<br>
</div>
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<br>
</div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-internal <dsg-internal-bounces@jlab.org> on behalf of Peter Bonneau <bonneau@jlab.org><br>
<b>Sent:</b> Friday, September 25, 2020 9:49 AM<br>
<b>To:</b> dsg-internal <dsg-internal@jlab.org><br>
<b>Subject:</b> [Dsg-internal] Fw: [dsg-hdice] Found a built in averaging and referencing feature on sweep tab of Zurich lock-in amplifier</font>
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Tyler,</div>
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<br>
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As I mentioned on the phone, the two power supply Vi's need arbitration to work on multiple supplies due to limitations in GPIB as mentioned in this forum: <a href="https://forums.ni.com/t5/LabVIEW/can-i-read-GPIB-instruments-in-paralel/td-p/1124427?profile.language=en">https://forums.ni.com/t5/LabVIEW/can-i-read-GPIB-instruments-in-paralel/td-p/1124427?profile.language=en</a><br>
</div>
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<br>
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We can either:</div>
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1) Use our rotation of target polarization program in manual mode. This program has arbitration for two supplies. You'll need to implement the voltage readback and add this program and supporting VI's to the project file.<br>
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<br>
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2) Have them use another usb-GPIB controller and run the two VISA power supply programs.
<br>
</div>
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<br>
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<br>
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<br>
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<br>
</div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_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 Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Wednesday, September 23, 2020 7:09 PM<br>
<b>To:</b> Tyler Lemon <tlemon@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 Tyler,</div>
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<br>
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The Main2.vi failed to work this morning. Again I could run both VIs separately, but not together. When 2 power supplies were linked by a GPIB cable, The Main2.vi always failed to run. Main.vi only failed after I tried to run Main2.</div>
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<br>
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I removed the GPIB cable between the supplies for today's run.</div>
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Any thought?</div>
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Thanks,</div>
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<br>
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Xiangdong</div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_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 Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Tuesday, September 22, 2020 2:29 PM<br>
<b>To:</b> Tyler Lemon <tlemon@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 Tyler,</div>
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Good news: The GPIB cable which I used to connect the 2 Oxford power supplies was broken. Since I replaced it this morning, both VIs have been used to drive the IBC Main and Transfer Magnets in the same time.</div>
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Thanks,</div>
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Xiangdong</div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_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 Xiangdong Wei <xwei@jlab.org><br>
<b>Sent:</b> Monday, September 21, 2020 4:45 PM<br>
<b>To:</b> Tyler Lemon <tlemon@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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<div>Hi Tyler,</div>
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<div>Thank you for fast responding. I didn’t reconfigure the rack2 connections, only used a GPIB cable to connect both power supplies. In principle, the connections were the same as your drawing (the adapter is on the lock-in).</div>
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<div>I did use the front panel to set the GPIB address, following the Oxford manual.</div>
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<div>What I didn’t do was checking if the cable was good or not. I’ll look for another one and check again. (The cave is locked out now)</div>
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<div>Thanks,</div>
<div><br>
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<div>Xiangdong </div>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Monday, September 21, 2020 3:55 PM<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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<div style="direction:ltr">Hi Xiangdong,</div>
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<div style="direction:ltr">Just to make sure everything is hooked up correctly and since I can’t see it in person, attached is a hand drawn sketch for how the set up needs to be.
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<div style="direction:ltr">There needs to a a GPIB cable between the two power supplies. The USB-GPIB adapter needs to go on to the connector of one of the power supplies. In the sketch, it’s on P.S. # 1 but it could also be on P.S. # 2.
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<div style="direction:ltr">If everything is already set up as in the sketch, it could be that the second power supply didn’t actually get assigned the new GPIB address. How did you set its address?</div>
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<div style="direction:ltr">You would need to set it on the front panel of the power supply. In the attached manual, page 48 has the steps to get the power supply into the mode to set the address. Page 49 has the info on what to do to set the GPIB address.</div>
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<div style="direction:ltr">Tyler<br>
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<div id="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_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> Monday, September 21, 2020 3:33:03 PM<br>
<b>To:</b> Tyler Lemon <tlemon@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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<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>
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<div>Xiangdong </div>
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<font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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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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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<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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<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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<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_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_BodyFragment"><font size="2"><span style="font-size:11pt">
<div class="x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_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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><br>
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