Method of loading control program for numerical control apparatu

Details Method of loading control program for numerical control apparatu Method of loading control program for numerical control apparatu

1989-11-21

1991-03-12

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318571, 36447406, G05B 1918

Patent

active

049995545

ABSTRACT:
The present invention discloses a method of loading a control program for a numerical control apparatus, wherein the control program is composed of a plurality of load modules. Each module contains a judgment codes, such as a version number, at the head portion thereof, and is stored in a read/write operation enabling memory, so that each of the judgment codes can be compared with a corresponding judgment code received from an external apparatus by a judgment code comparing means. When the comparison detects different judgment codes, transmission of the new load module corresponding to the discorded judgment codes requested by a modified load module requesting means. Only the substantive portion of the load modules corresponding to the discorded judgment codes received through the comparing means and requesting means need be loaded onto the memory by way of a load means.

REFERENCES:
patent: 4435771 (1984-03-01), Nozawa et al.
patent: 4539634 (1985-09-01), Sakai et al.
patent: 4684861 (1987-08-01), Kawamura et al.
patent: 4815000 (1989-03-01), Yoneda et al.
Angewandte Informatik, 5/77, "Programmstruktur eines DNC-Systems", of J. Kreich.
"Die Organization von Datennetzen", of James Martin, published by Carl Hanser Verlag, Munchen, 1972.

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