Control system having a programmed logic unit

Details Control system having a programmed logic unit Control system having a programmed logic unit

1974-12-13

1977-03-08

Shaw, Gareth D.

Communications: electrical

Digital comparator systems

1791752C, G05B 1132, G06F 300

Patent

active

040115445

ABSTRACT:
Programmed logic control system intended for the monitoring of a set of elements, more particularly a switching exchange comprising an addressable memory containing the list of orders enabling the said monitoring, input detectors receiving the data concerning the state of the various controlled elements, registers for storing the data used by the program, output means enabling the sending, towards the elements, of orders for the changing of state and/or digital data contained in the registers and means for addressing the memory effecting an analysis according to a logic unit comprising several states of the input data.

REFERENCES:
patent: 3648252 (1972-03-01), Thron
patent: 3740728 (1973-06-01), Pullen
patent: 3753243 (1973-08-01), Ricketts, Jr. et al.
patent: 3883851 (1975-05-01), Drake et al.
International Conference on Microelectronics, IEE, June 3-5, 1969, Eastborne, London, pp. 33-34.

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