[dsg-hdice] SRS impedance switch

[thomaso at jlab.org]

Hi Tyler,

I just noticed my emailed response from my cell phone failed to go through
earlier.

Thanks for your help.  Xiangdong and I will try out the new feature shortly.

-Tom


> Hi Tom and Xiangdong,
>
> I've added the code to let you set the SR844 signal input impedance.
>
> 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.
>
> There is also a readback of the impedance setting to indicate how the
> impedance is set.
>
> I have now signed out of HDiceNMR2 and it is open for you to test the
> program.
>
> Tyler
> ________________________________
> From: thomaso at jlab.org <thomaso at jlab.org>
> Sent: Tuesday, October 27, 2020 10:10 AM
> To: thomaso at jlab.org <thomaso at jlab.org>
> Cc: Xiangdong Wei <xwei at jlab.org>; 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,
>
> Then you finish using the PC, could you email us back and let us know?
>
> Thanks,
> Tom
>
>> 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
>>> _______________________________________________
>>> dsg-hdice mailing list
>>> dsg-hdice at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/dsg-hdice
>>>
>>
>>
>
>
>