Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PLC Based Upgrades for the CAMD Linac and Storage Ring Control System   Louisiana State University Center for Advanced Microstructures and Devices
(CAMD) began a control system upgrade project in early 1997. At the time, the
storage ring was controlled by a VAX/VMS system, primarily using CAMAC for I/O.
The injector Linac was controlled by a separate VME/OS/9 system using custom
I/O components. The storage ring control system has been replaced with a
PC/Linux based system, utilizing the existing CAMAC subsystem [1]. In an effort
to both migrate channels away from CAMAC, and integrate the Linac controls with
the storage ring controls, a design for upgrades utilizing AutomationDirect.com
PLCs was presented [2]. This paper will discuss the detailed design for the
Linac PLC based control system, and discuss the status of PLC upgrades for the
Vacuum system, Kicker controls, 2nd RF system, and utilities monitoring.

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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph