对并联机床数控系统进行了软件模块划分，重点介绍了程序设计模块、加工及仿真模块、手动测量模块的主要功能。

In this paper, the software module of PMT NC system is divided, and the programming module, processing module, simulation module and hand control module are introduced.

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模块之间则是通过CAN总线连接，每个模块都是总线上的一个节点，通过对节点中的微控制器的程序设计，各节点可以联机调试，并通过本文制定的初步协议来实现相互的通信。

Each module is a node of CAN-BUS, which could be online debugging by the program loading the microcontroller of them and could correspond with each other by the primary communication protocol.

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