[Dsg-halld_plc] [New Logentry] Follow-up Re: Inoperative magnetometer reading partially troubleshot

Brian Eng beng at jlab.org
Tue Mar 13 14:16:10 EDT 2018


Here's what the PXI does with either of those PVs.

First , as some background, it keeps a list of what how the ADC channels map to the signal names along with things like offset, slope, terminal block type, etc in a configuration file that it loads when initializing.

HallD-PXI:Control:Zero PV = 1 makes the PXI sample all the channels and writes their current voltages to the offset of that channel in the config file.
HallD-PXI:Control:Reset PV = 1 makes the PXI write 0 to all the offsets in the config file.

Looking at the PXI now, the B_Field ADC channels is reading ~0.7 V which seems reasonable based on DMM measurements from yesterday. The CSS screen shows 0.7 T right now as well.

Is the conversion for the gaussmeter supposed to be 1V = 1T?

----- Original Message -----
> From: "hovanes" <hovanes at jlab.org>
> To: "dsg-halld plc" <dsg-halld_plc at jlab.org>
> Sent: Tuesday, March 13, 2018 8:48:15 AM
> Subject: Re: [Dsg-halld_plc] [New Logentry] Follow-up Re: Inoperative magnetometer reading partially troubleshot

> They do have a confirmation dialog menus. I do not know what these button does,
> they probably
> 
> 
> write 1 to HallD-PXI:Control:Zero or HallD-PXI:Control:Reset .
> 
> But if in doubt, we should check it.
> 
> 
> Hovanes.



More information about the Dsg-halld_plc mailing list