NUMERICAL CONTROLLER AND METHOD FOR INPUTTING AND SETTING CONTROL SOFTWARE TO SAME NUMERICAL CONTROLLER

摘要

PROBLEM TO BE SOLVED: To save the nonvolatile memory of the numerical controller and to facilitate update operation for the software, and to optimize the decentralization of a load to controllers. SOLUTION: When a system is started up, a host computer 2 reads in software modules from an external nonvolatile memory 3 according to a system constitution information file CR and reconstitutes control software for machines, which is transferred to the volatile memories (b) of respective numerical controllers. The software modules are stored altogether in the external nonvolatile memory 3, so when the control software is updated, data of only software modules in the external nonvolatile memory 3 are updated and the operation is made simpler than update operation for control software of the respective numerical controllers. Further, the load can be decentralized to controllers by the same method most efficiently.