[Dsg-halld_plc] Solenoid MPS Power

[Timothy Whitlatch]

Hi Brian, 

If all it is is pressing the "Calibrate" button on the PXI screen, I may be able to handle that. 

Tim Whitlatch 
Hall D Engineer 
Jefferson Lab 
600 KELVIN DR STE 5 
Newport News, VA 23606-4468 
757-269-5087 


From: "Brian Eng" <beng at jlab.org> 
To: "Timothy Whitlatch" <whitey at jlab.org> 
Cc: "Tom Carstens" <carstens at jlab.org>, "Mark Stevens" <stevensm at jlab.org>, "Beni Zihlmann" <zihlmann at jlab.org>, "dsg-halld plc" <dsg-halld_plc at jlab.org> 
Sent: Thursday, March 22, 2018 3:51:00 PM 
Subject: Re: Solenoid MPS Power 

Hi Tim, 

I'm not going to be on-site tomorrow (I CC'd the mailing list in case you guys need any help). 
It doesn't need to be me that does the calibration since (in theory) it's just clicking a button. 

Because I've never seen this functionality performed I'm not sure if there's additional steps involved. 
The readings should go to ~0 if the calibration worked and the new offsets are being used. 
Worst case: stop the daq, do the calibration, start the daq. 

I just wanted to make sure that it got done as well as saving the file so we have the data for later. 
Right now we only have the one that Yi originally did and the "bad" one from earlier in the year. 

P.S. The calibrations should only effect the data that goes to EPICS, not the fast data. 
-- 
Brian Eng 
Detector Support Group 
757-269-6018 

> On Mar 22, 2018, at 3:26 PM, Timothy Whitlatch <whitey at jlab.org> wrote: 
> 
> Hi Brian, 
> 
> We will be ramping up the PS 1st thing tomorrow. We can hold off until you get a calibration. 
> 
> Cheers, 
> 
> Tim Whitlatch 
> Hall D Engineer 
> Jefferson Lab 
> 600 KELVIN DR STE 5 
> Newport News, VA 23606-4468 
> 757-269-5087 
> 
> From: "Brian Eng" <beng at jlab.org> 
> To: "Timothy Whitlatch" <whitey at jlab.org>, "Tom Carstens" <carstens at jlab.org>, "Mark Stevens" <stevensm at jlab.org> 
> Sent: Thursday, March 22, 2018 2:41:37 PM 
> Subject: Solenoid MPS Power 
> 
> Hi guys, 
> 
> Do you know when the MPS will be turned on? 
> 
> I'd like to run the calibrations for the PXI while the MPS is on, but still at 0 Amps. 
> 
> Thanks 
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