[Dsg-hallb_magnets] Fw: Hall B MPS failure - Assessment required to evaluate PLC code

[Brian Eng]

Attached is the assessment from the Cryo group about the PLC code.

I think implementing their software option A seems like a reasonable thing to implement in the code, although as they noted the polarity switch is under the purview of the MPS controller. Basically if the current is above a small amount e.g. 5-10 A the PLC will ignore any value change of a different polarity. I'll work with Aaron to get that added.

Eugene has also suggested disabling the remote functionality completely and only switching polarity manually.

________________________________
From: Josh Ballard <ballardj at jlab.org>
Subject: RE: Hall B MPS failure - Assessment required to evaluate PLC code


Hi Probir,



We have completed our review and compiled our comments and recommendations in the attached Powerpoint.



Feel free to reach out if you have any questions or comments.

Thanks,



Josh
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