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Abstracts |
E. Bjorklund
Experience using hardware knobs as an operator interface for controlling equipment has varied considerably at different facilities. Reactions have ranged from ^Qindispensable^R at some facilities, to ^Qvirtually useless^R at others. In this paper, we will attempt to outline some basic principles for successful knob implementation. These principles derive from our own experience with control knobs at the LANSCE Accelerator Complex and our recent effort to adapt our control knobs to EPICS. Topics to be covered include what the operator needs the knob to do, what the knob needs to know about the device it is controlling, and knob scaling issues. Advanced topics such as closed-loop, PID, and aggregate knobs are left as topics for future papers.
{*} Work supported by the U.S. Department of Energy.
eCONF
C011127
ePROCEEDINGS
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SUMMARY
ICALEPCS 2001
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