Automatic variable linkage mechanism for integrating third party software components

Abstract

A software-based controller system implemented on a generic computer hardware platform for numerically controlling a machine tool. The software-based controller system includes a servo mechanism associated with the numerically controlled system, a real-time module for performing numeric control operations through the use of the servo mechanism, a p-code runtime engine receptive of interpreted program instructions for performing computational operations independent from the control of the servo mechanism, and a messager module communicating with the real-time module and the runtime engine to implement a pointer architecture that facilitates communication between the real-time module and the runtime engine. The messager module defines a common location in a shared memory that is accessible to the real-time module, runtime engine, and messager module. The real-time module and the runtime engine communicate through this shared memory by using the pointer architecture to point from the real-time module and the runtime engine to the common location in shared memory, thereby supporting control operations on the numerically controlled system.

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