[Dsg-hallb_magnets] Cryo-con & PLC Communications

[Ruben Fair]

Brian

I am concerned that the version on Github did not match the version on the PLC. How did this happen?

Ruben

> On Jul 20, 2017, at 5:16 PM, Brian Eng <beng at jlab.org> wrote:
> 
> All solenoid units were upgraded successfully: https://logbooks.jlab.org/entry/3479488
> 
> Nick/Pablo,
> 
> When you guys are back next week we need to look into the status of the cryo-con units on the PLC, as during the upgrade process Tyler and I had to unplug the units several times. The CSS screen comm light for all of the cryo-con units always displayed green. Wesley has already checked into the EPICS part and it looks is okay. I'm not sure if there is a timeout or not, but a few instances we had a unit off for quite a bit of time while troubleshooting.
> 
> Also, the watchdog for the solenoid seem to be increasing in strange increments and it resets itself just shy of 10k.
> 
> Since most of the cryo-con functionality is done with ladder logic I gave up looking into it pretty quickly.
> 
> As a somewhat side note, the current solenoid code needs to be pushed to GitHub, I had to upload from the PLC when I connected since what's on GitHub doesn't match what's on the PLC.
> 
> --
> Brian Eng
> Detector Support Group
> 757-269-6018
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