Boots – shoes – and leggings
Patent
1984-09-28
1987-04-14
Williams, Archie E.
Boots, shoes, and leggings
364708, 364709, 364710, 339148, 339150T, 361393, 361426, G06F 1300, G06F 100, H01R 1100, H05K 700
Patent
active
046583750
ABSTRACT:
An expandable sequence control system including a central controller unit for sequentially controlling a plurality of I/O devices connected thereto through a plurality of I/O interface modules is disclosed herein. A terminal block is formed on each I/O interface module for connection between the interface module and the I/O devices. Each of the I/O interface modules is provided at its opposite ends with respective ports which are to be electrically coupled to the central controller unit or connected to each other by means of flexible cables. These ports of each I/O interface module are electrically interconnected through a feeder passage incorporated therein such that a desired number of the I/O interface modules can be added to the system by coupling the feeder passages thereof with the flexible cable connecting between the ports of adjacent I/O interface modules. Accordingly, a plurality of the I/O interface modules can be arranged in tandem or parallel relationship with each other depending on the requirements of a space in which the system is to be installed, giving rise to flexibility in arranging the plural I/O interface modules in a limited space.
REFERENCES:
patent: 4084250 (1978-04-01), Albertine et al.
patent: 4092730 (1978-05-01), Burkett et al.
patent: 4490775 (1984-12-01), Quan
patent: 4503484 (1985-05-01), Moxon
patent: 4558914 (1985-12-01), Prager et al.
Fujimoto Hiroaki
Hatakawa Mamoru
Onogi Toshiro
Matsushita Electric Works Ltd
Niessen William G.
Williams Archie E.
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