[dsg-hdice] SRS impedance switch

[Tyler Lemon]

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
>>
>
>


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