Numerical controller
AssigneeFanuc Corporation
InventorNoritake Nagashima
Life of this patent
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Abstract
Provided is a numerical controller capable of efficient signal transmission and reception to and from a retrofitted PLC. A numerical controller includes a numerical control unit, a built-in PLC, and a retrofitted PLC operating at a predetermined control period different from those of the numerical control unit and the built-in PLC. The retrofitted PLC is configured to detect external triggers issued from the numerical control unit and the built-in PLC, execute a sequence processing for numerical control processing upon detection of the external trigger issued from the numerical control unit, and execute a sequence processing for built-in PLC processing upon detection of the external trigger issued from the built-in PLC.
Claims5
A numerical controller comprising:
- a numerical control unit;
- a built-in PLC;
- and
- a retrofitted PLC operating at a predetermined control period different from control periods of the numerical control unit and the built-in PLC, the retrofitted PLC being configured to
- detect external triggers issued from the numerical control unit and the built-in PLC,
- execute a sequence processing for numerical control processing upon detection of the external trigger issued from the numerical control unit, and
- execute a sequence processing for built-in PLC processing upon detection of the external trigger issued from the built-in PLC.
Dependencies are inferred from the claim text.