用S7-200控制的多变频器系统通讯部分的设计与实现

The Design and Implementation of Communication Part of Multi-inverter System Controlled by S7-200

针对所开发的以 ADMCF 3 2 8为核心的 DSP控制芯片的变频控制器组成的多变频器系统 ,提出了用S7-2 0 0系列 PLC模块来集中控制这个系统的通讯部分的设计思路和具体实现。给出了具体实现的通讯协议、实现时要解决的关键技术问题和解决思路 ,以及部分实现代码示例。

In this paper, to control multi-inverter system composed of inverters which use control chip ADMCF328 DSP, the design and implementation of communication part based on S7-200 series PLC module is rendered. The communication protocol, key technical problem and its solution, some example code are given in this paper.