[dsg-hdice] SRS impedance switch

[thomaso at jlab.org]

Hi Tyler,

We finished running our NMR scans this morning.  I'm logging out of the
clone NMR PC now.  It's now available for you.

Thanks,
Tom

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