Process control apparatus

Details Process control apparatus Process control apparatus

1978-10-02

1983-07-12

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 906

Patent

active

043934692

ABSTRACT:
Process control apparatus for reading the condition of a selected variable and for generating a next instruction to be implemented based on the observed condition of the selected variable. The next instruction is that of reading one of two possible instructions, one of which causes the state of an output variable to be read and/or set and the other calls for reading the value of another selected input. In this manner, a program cycle is completed so that the values of all output variables can be set and read.

REFERENCES:
patent: 3651484 (1972-03-01), Smeallie
patent: 3753243 (1973-08-01), Ricketts, Jr. et al.
patent: 3761882 (1973-09-01), Bartlett et al.
patent: 3900835 (1975-08-01), Bell et al.
patent: 3930236 (1975-12-01), Ferguson
patent: 4101967 (1978-07-01), Hajduk

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