Control program tracking and display system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 12, 2000
Grant Date -
N/A
app pub date -
Jun 8, 1999
filing date -
Jul 31, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Control program statements are graphically displayed as flowchart logic. The runtime engine associated with the process control computer monitors and maintains state data indicating whether a program statement was executed on every pass, on at least one but not all passes, or never. This state information is used by the program tracker to render the graphically displayed program blocks in a different color or other visual indicia, allowing the user to perceive what program branches the runtime program actually took during operation. The user is thus provided with useful logic flow information even though the executing program may operate cyclically at a speed faster than the user can directly perceive.
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