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本文提出一种用于制造自动化协议网络环境的网络控制器的设计原理和实现方法。在简单阐述协议标准的基础上，结合实际应用场合给出网络控制器的系统设计框架。然后详细叙述控制器的硬件设计与实现方案，并与其它网络控制器比较，表明该方案的优越性。最后依据硬件设计特点讨论控制器与主机进行数据交换的软件设计。
This paper presents a design protocol and implementation method of a network controller used in the manufacture of an automation protocol network environment. On the basis of simply describing the protocol standard, the system design frame of the network controller is given according to the practical application. Then the hardware design and implementation scheme of the controller are described in detail and compared with other network controllers to show the superiority of the scheme. Finally, based on the hardware design features of the controller and host data exchange software design.