Boots – shoes – and leggings
Patent
1993-08-24
1995-09-19
Trammell, James P.
Boots, shoes, and leggings
364131, 364138, G05B 1500
Patent
active
054522013
ABSTRACT:
A highly distributed industrial control system employs a number of separate control modules communicating together on a shared communications medium. Each module emulates one or more basic electrical parts having electrical terminals, such as switches and relays, and transmits production messages indicating the state of the parts, such as conducting current or not. A connection list for each part in each control module defines message identifiers of other parts whose production messages are received by the control module and interpreted as current flow to one or more of its parts. The control system is programmed by generating a schematic on a programming terminal showing connections of terminals on symbols of the parts such as would represent actual wiring of the emulated parts. This schematic is analyzed to determine the immediate upstream neighbors of each part and the message identifiers of those parts in the control modules form the connection lists. In this way the program is divided to run concurrently on the various modules.
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Hodorowski John J.
Pieronek Donald S.
Allen-Bradley Company Inc.
Baxter Keith M.
Hamann H. F.
Horn John J.
Trammell James P.
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