Modular electrical control distribution system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 15, 1991
Grant Date -
N/A
app pub date -
Jan 5, 1989
filing date -
Jan 5, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to control large machines or plants, it is necessary to connect an electronic control 8' or Central Processing Unit (CPU) with a number of reporting, positioning, and measuring peripherals. This CPU is usually not in the immediate vicinity of the peripherals. In order to obviate the need to run separate lines from each of three connected devices to the CPU, an input/output system is connected to the CPU by a data bus for transmission of signals in both directions. An input/output system is often exposed to dust, cuttings, and/or moisture generated at the machine or installation, so the present invention features dust-and-water-resistant seals 5, 17, 26, 28, 52 at all sockets. A plug distribution box 1 with sockets 7, 8, 9 for power supply, bus, and diagnostic connections can be extended by input/output modules 2 which plug into box 1. The modules 2 in turn have sockets 21 for connection with reporting, positioning, and measuring units.
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