Object-oriented programmable controller
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United States of America Patent
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Sep 7, 1999
Grant Date -
N/A
app pub date -
Nov 5, 1997
filing date -
Nov 5, 1997
priority date (Note) -
Expired
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Abstract
A controller for one or more pieces of industrial equipment is configured to perform a series of control functions each organized into one or more procedures for performing particular machine actions. The progress of an action, or some parameter of the action-taking machine (which may or may not be associated with an action), is represented by one or more 'states.' A database associates entries corresponding to the items of an object (including the action(s) and the state(s)), and contains storage locations where the associated procedural instructions and/or data are to be found. The action can be independent of state information, or can instead be executed in a manner responsive to a sensed state. The controller may also include diagnostic capability, as well as accumulation and processing of performance data for subsequent analysis.
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