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User name R. Michaels
Log entry time 15:07:31 on August26,2014
Entry number 400712
This entry is a followup to: 400711
keyword=R-HRS HV working, mods made
The R-HRS HV is working again. However, the bottom crate is pretty unstable.
During some of my time working on it, I could not control any of the HV cards
with primitive commands, so the entire crate was paralyzed. I think this has
been happening episodically for weeks. Usually it gets "fixed" by a power
cycling and running the primitive software to turn on cards. I noticed at one
point that the card in slot 2 had lights blinking, which usually means its in a bad
state and needs power-cycling. Since that card isn't being used, I've disengaged
it from the crate bus. Working on the hypothesis it was a bad card. At the
moment the crate is working.
1. Roman updated the Java GUI. Some bug fixes had not been merged, but we
found these by doing "diff" command between versions. Now, rpi4 works with tcp.
2. I "automated" rpi4 such that its software gets started by a cron script. Same as
for the other PCs. This way, the user does not need to run "start_hv" interactively.
I'll ask Chuck to refurbish the R-HRS bottom HV crate with an rpi. It cannot make
it any worse, I think.