[dsg-hdice] USB to RS-232 converter

[Brian Eng]

Wei,

Here's a summary of what we did today on Rack #1.

- Found that the ground lug for the RS485 modules in the RF Box wasn't a very good connection so we added some solder.
- Added a property node for the RS-485 communication in the FRS program to make the connection 2-wire.

- The 12V LED in the RF Box is still not acting properly. It has already been changed once. If this is an issue we'll need to take the box out and either fix the connections to the LED or replace it.

Let us know if you run into any other issues we can help with.

> On Sep 6, 2019, at 1:03 PM, Xiangdong Wei <xwei at jlab.org> wrote:
> 
> Brian,
> 
> I tested the nmr program you fixed yesterday and it works. Now I connected the sensors and the values were not reported. The FRS program needs to be tweaked, too. Would you please take a look?
> 
> Thanks,
> 
> Xiangdong 
> From: dsg-hdice <dsg-hdice-bounces at jlab.org> on behalf of Brian Eng <beng at jlab.org>
> Sent: Thursday, September 5, 2019 2:33:44 PM
> To: dsg-hdice at jlab.org <dsg-hdice at jlab.org>
> Subject: Re: [dsg-hdice] USB to RS-232 converter
>  
> Aaron and Tyler confirmed that it was a driver problem and not a hardware one with both of the converters (the code you ran just happened to try and communicate with the 232 one first).
> 
> Both of the USB<->Serial (232 & 485) converters should be working properly now on the Windows 10 computer.
> 
> Reinstalling NI-Serial 18.5 (which corresponds to the LabVIEW version installed: 2018 SP1) got rid of the error messages.
> 
> We did leave the RS-232 port plugged into the computer since it was the only one being used.
> 
> > On Sep 5, 2019, at 1:08 PM, Xiangdong Wei <xwei at jlab.org> wrote:
> > 
> > Hi Brian,
> > 
> > The USB to RS-232 converter on NMR Rack 2 (Windows 10 system) is dead. Do you have spares? Could one of you take a look at the Rack? 
> > 
> > Thanks,
> > 
> > Xiangdong
> 
> 
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