Experimental Physics and Industrial Control System
I've got a kind of a peculiar Camac here. I'm wondering if any of you
can help me out.
The Camac is driven by the Hytec 2992 (driver from CEBAF/TJNAF). I'm
using EPICS_3.13.0b11 on an MV172.
The crate sits in a very nasty (electrically) environment and goes
"brain-dead" every once in a while. To get around this, I just execute
the "camacCrateInit" routine from a subroutine record every ten
seconds. This works very well, generally. Unfortunately, the crate is
run off a generator ('cus it's in a room that floats at 750keV) and
it's shut down when the machine is not running. The only problem there
is that it brings the VME crate to its knees waiting to hear from the
Camac and, as a result of repeated failed attempts to init the crate,
eventually crashes. (Note that the mv167 was much more rhobust about
this than the mv172, but both crash from it.)
My questions to all of you are:
1) Is there a better way to do this?
2) What is that better way?
Thanks very much in advance.
Garrett Rinehart
Intense Pulsed Neutron Source
Argonne National Laboratory
9700 S. Cass Ave
Argonne, IL 60439
(630)252-6561
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