G - Physics – 06 – F
Patent
G - Physics
06
F
375/10, 354/230.
G06F 3/14 (2006.01) G05B 19/05 (2006.01)
Patent
CA 1121066
ABSTRACT OF THE DISCLOSURE A programmable sequence controller is provided with a display signal processor for preparing and correcting a sequence program in combination with a CRT (or cathode ray tube) display device. The signal processor simply effects signal processing of branch points and composition points in case where a so-called "ladder diagram" constituting the sequence diagram with relay symbols is prepared and displayed. Branch information is stored in an FIFO (or first in first out) register. The branch information is sequentially received and stored, and the information thus stored is read out in the order of storage, thus preparing the ladder diagram. There are provided a register for instructing the FI operation and a register for instructing the FO operation. The sequence display controller is applicable to the cases where a new ladder diagram is to be prepared, the diagram once prepared is corrected and the operation is checked.
335532
Asada Kazuyoshi
Hideshima Keiji
Koyanagi Haruo
Sawano Hirokazu
Suda Hiroharu (section 33(1))
Hitachi Ltd.
Kirby Eades Gale Baker
Nissan Motor Co. Ltd.
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