[Dsg-hallb_magnets] Cryo-con & PLC Communications

[Brian Eng]

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.

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Brian Eng
Detector Support Group
757-269-6018