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Hi Tom and Xiangdong,</div>
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<br>
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I've added the code to let you set the SR844 signal input impedance.</div>
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<br>
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When the program is run, there will now be an additional pop-up window allowing you to set the impedance ti 50 Ohms or 1 MOhm.</div>
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<br>
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There is also a readback of the impedance setting to indicate how the impedance is set.</div>
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<br>
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I have now signed out of HDiceNMR2 and it is open for you to test the program.<br>
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<br>
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Tyler<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> thomaso@jlab.org <thomaso@jlab.org><br>
<b>Sent:</b> Tuesday, October 27, 2020 10:10 AM<br>
<b>To:</b> thomaso@jlab.org <thomaso@jlab.org><br>
<b>Cc:</b> Xiangdong Wei <xwei@jlab.org>; Tyler Lemon <tlemon@jlab.org>; Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] SRS impedance switch</font>
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<div class="PlainText">Hi Tyler,<br>
<br>
Then you finish using the PC, could you email us back and let us know?<br>
<br>
Thanks,<br>
Tom<br>
<br>
> Hi Tyler,<br>
><br>
> We finished running our NMR scans this morning. I'm logging out of the<br>
> clone NMR PC now. It's now available for you.<br>
><br>
> Thanks,<br>
> Tom<br>
><br>
>> Tyler,<br>
>><br>
>> The extra pausing time and another minor issue caused a total of 75<br>
>> minutes delay. The NMR run will finish at 9:55am. I'll release the<br>
>> remote<br>
>> login right after 10am. The UITF Cave will be locked out at noon, so we<br>
>> have enough time to implement and test the new function, I hope.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Xiangdong Wei<br>
>> <xwei@jlab.org><br>
>> Sent: Monday, October 26, 2020 9:40 PM<br>
>> To: Tyler Lemon <tlemon@jlab.org>; Brian Eng <beng@jlab.org>;<br>
>> dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
>> Subject: Re: [dsg-hdice] SRS impedance switch<br>
>><br>
>> Hi Tyler and Brian,<br>
>><br>
>> Great! The current NMR run will finish between 8:30 and 9:00 tomorrow<br>
>> morning (depending upon how long Tsuneo pause the NMR tonight), I'll<br>
>> send<br>
>> an email as soon as I check the data and release the HDiceNMR2 computer<br>
>> from the mirror PC.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Tyler Lemon<br>
>> <tlemon@jlab.org><br>
>> Sent: Monday, October 26, 2020 9:22 PM<br>
>> To: Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
>> Subject: Re: [dsg-hdice] SRS impedance switch<br>
>><br>
>> In that case, I’ll add the option in the morning to select the impedance<br>
>> and then let you all know to be able to copy the program to the NMR<br>
>> racks.<br>
>><br>
>> Tyler<br>
>><br>
>> ________________________________<br>
>> From: Brian Eng <beng@jlab.org><br>
>> Sent: Monday, October 26, 2020 9:08:12 PM<br>
>> To: Tyler Lemon <tlemon@jlab.org>; dsg-hdice@jlab.org<br>
>> <dsg-hdice@jlab.org><br>
>> Subject: Re: SRS impedance switch<br>
>><br>
>> There's already a subVI that does this. That was one of the ones I ran<br>
>> when we were testing communications last week.<br>
>><br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Tyler Lemon<br>
>> <tlemon@jlab.org><br>
>> Sent: Monday, October 26, 2020 9:00 PM<br>
>> To: dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
>> Subject: [dsg-hdice] SRS impedance switch<br>
>><br>
>><br>
>> Hi Xiangdong,<br>
>><br>
>> I’ll have to take a look tomorrow morning and make the changes if it is<br>
>> possible.<br>
>><br>
>> I think there is a command we can send to the lock in amplifier to set<br>
>> the<br>
>> impedance. If it is possible, I’ll add code to make it so the user has<br>
>> to<br>
>> set the impedance when you start the program.<br>
>><br>
>> I’ll let you know tomorrow what I find.<br>
>><br>
>><br>
>> ________________________________<br>
>> From: Xiangdong Wei <xwei@jlab.org><br>
>> Sent: Monday, October 26, 2020 6:36 PM<br>
>> To: Tyler Lemon; Brian Eng; dsg-hdice@jlab.org; Peter Bonneau<br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> Hi Tyler,<br>
>><br>
>> As you probably know that last week we had some issues with the NMR<br>
>> program, which ended up with tweak and tune. Luckily Brian was<br>
>> available<br>
>> to help and we had the NMR going again.<br>
>><br>
>> Now I have a new favor to ask: In the last two days, when use fsNMR, we<br>
>> realized that both 1 Mega Ohms and 50 Ohms modes of SR844 input<br>
>> impedance<br>
>> should be used. Is it possible to add a input impedance switch, or not<br>
>> checking it (so it latches on) for the fsNMR VI in a short time? Setting<br>
>> it without walking into the uitf CAVE is preferred.<br>
>><br>
>> Please let me know which is quick and easy, since we can only stop for<br>
>> short time to implement the change.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>><br>
>><br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Xiangdong Wei<br>
>> <xwei@jlab.org><br>
>> Sent: Wednesday, October 21, 2020 2:02 PM<br>
>> To: Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org>;<br>
>> Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: [dsg-hdice] Emergency help needed!!!<br>
>><br>
>> Hi Brian,<br>
>><br>
>> Thank you helping me to solve the NMR controller VI issues on Monday.<br>
>><br>
>> I didn't mail you the results yesterday because the testing took a lot<br>
>> longer than I initially planned. I have run several combinations of<br>
>> using<br>
>> different VIs to measure NMR signals sin the fix, and I haven't seen any<br>
>> errors yet. Good job.<br>
>><br>
>> The next, I will power down the HDice NMR rack 2 and Oxford IPSs for a<br>
>> UPS<br>
>> swapping. I hope everything is fine after repower the rack.<br>
>><br>
>> More test/production runs will be performed.<br>
>><br>
>> Thank,<br>
>><br>
>> Xiangdong<br>
>> ________________________________<br>
>> From: Brian Eng <beng@jlab.org><br>
>> Sent: Monday, October 19, 2020 1:45 PM<br>
>> To: Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org<br>
>> <dsg-hdice@jlab.org>; Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> I think I see what the issue is, but could you give me a call when you<br>
>> get<br>
>> a chance so I can confirm before making any changes.<br>
>><br>
>> Basically the old code only sent the GPIB address, which works fine when<br>
>> there is only 1 controller, but now that there are 2 on the computer the<br>
>> string it sends should also include which controller to address.<br>
>><br>
>> ________________________________<br>
>> From: Xiangdong Wei <xwei@jlab.org><br>
>> Sent: Monday, October 19, 2020 12:57 PM<br>
>> To: Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org>;<br>
>> Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> Brian,<br>
>><br>
>> The hdice remote pc logout now. Please proceed.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Xiangdong Wei<br>
>> <xwei@jlab.org><br>
>> Sent: Monday, October 19, 2020 12:28 PM<br>
>> To: Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org>;<br>
>> Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: [dsg-hdice] Emergency help needed!!!<br>
>><br>
>> Brian,<br>
>><br>
>> I have been in my office since 8 am, where the signal is not good<br>
>> sometimes. I did got 2 calls without any message, from area code 516,<br>
>> was<br>
>> that yours?<br>
>><br>
>> I can call, too,.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>><br>
>><br>
>> ________________________________<br>
>> From: Brian Eng <beng@jlab.org><br>
>> Sent: Monday, October 19, 2020 12:14 PM<br>
>> To: Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org<br>
>> <dsg-hdice@jlab.org>; Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> I tried calling your cell, but I'm guessing you don't have service where<br>
>> you are.<br>
>><br>
>> I got an error when trying to log in to hdicenmr1 & hdicenmr2 saying<br>
>> that<br>
>> the administrator has limited the number of computers you can log on<br>
>> with<br>
>> when trying to use the hdice account. When I use my own CUE account it<br>
>> says someone is logged on and doing so will disconnect them.<br>
>><br>
>> 1) Which computer should I connect to? Your email says 1 has problems,<br>
>> but<br>
>> 2 is available.<br>
>> 2) Has the hdice user password changed since Dec 2019 (that is the last<br>
>> password I have). If it has changed I'll try calling again once you have<br>
>> cell service.<br>
>><br>
>> ________________________________<br>
>> From: Xiangdong Wei <xwei@jlab.org><br>
>> Sent: Monday, October 19, 2020 11:59 AM<br>
>> To: Brian Eng <beng@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org>;<br>
>> Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> Brian,<br>
>><br>
>> Thank you very much.<br>
>><br>
>> Xiangdong<br>
>> ________________________________<br>
>> From: Brian Eng <beng@jlab.org><br>
>> Sent: Monday, October 19, 2020 11:38 AM<br>
>> To: Xiangdong Wei <xwei@jlab.org>; dsg-hdice@jlab.org<br>
>> <dsg-hdice@jlab.org>; Peter Bonneau <bonneau@jlab.org><br>
>> Subject: Re: Emergency help needed!!!<br>
>><br>
>> I'll take a look after I finish with an ongoing telemeeting.<br>
>><br>
>> ________________________________<br>
>> From: Xiangdong Wei <xwei@jlab.org><br>
>> Sent: Monday, October 19, 2020 11:24 AM<br>
>> To: dsg-hdice@jlab.org <dsg-hdice@jlab.org>; Peter Bonneau<br>
>> <bonneau@jlab.org>; Brian Eng <beng@jlab.org><br>
>> Subject: Emergency help needed!!!<br>
>><br>
>> Hi Peter, Brian, and the group,<br>
>><br>
>> We need your help immediately. The VIs for field sweep NMR, the FRS, and<br>
>> the fsNMR on NMR Rack1 PC are not functioning (They worked before adding<br>
>> to the control of the 2nd IPS) . The VIs for Dual IPS, Main 1 IPS and<br>
>> Main<br>
>> 2 IPS seem working. It seems to me the GPIB settings for the original<br>
>> VIs<br>
>> need to be tweaked. The GPIB address the the 2nd IPS is 28 on GPIB1 bus,<br>
>> not on GPIB0.<br>
>><br>
>> Please take a look asap.<br>
>><br>
>> The Rack 2 PC is available to you now.<br>
>><br>
>> When testing IPS, please make sure the maximum current is equal or below<br>
>> 1<br>
>> amp and the rate is no more than 3A/m.<br>
>><br>
>> Sorry for the short notice, I have no choice now.<br>
>><br>
>> If you need to talk you me any time, my cell number is 516-636-1957.<br>
>><br>
>> Thanks,<br>
>><br>
>> Xiangdong<br>
>> _______________________________________________<br>
>> dsg-hdice mailing list<br>
>> dsg-hdice@jlab.org<br>
>> <a href="https://mailman.jlab.org/mailman/listinfo/dsg-hdice">https://mailman.jlab.org/mailman/listinfo/dsg-hdice</a><br>
>><br>
><br>
><br>
<br>
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