Programmable sequence controller

Details Programmable sequence controller Programmable sequence controller

1985-11-15

1986-08-26

Thomas, James D.

Boots, shoes, and leggings

364131, 364140, 371 14, G06F 900, G06F 1100, G05B 1508

Patent

active

046086617

ABSTRACT:
A hierarchy system constituted by a plurality of sequence controllers, each said controller having a central processing unit, a first memory unit for storing a system program, a second memory unit for storing a sequence program, a third memory unit for storing data required for performing the sequence program, an input control unit for controlling an input signal given from an input element, an output control unit for controlling an output signal to give to an output element, a bus line which connects with the central processing unit, the first memory unit, the second memory unit, and the input/output control units. Each controller has also a transmitting and a receiving unit for transferring to and receiving from other sequence controllers status signals. The system may connect the sequence controllers in a pyramid fashion in one embodiment of this invention. Some of the controllers have a plurality of receiving control units and transmitting control units.

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