Non deterministic communication delay of Ethernet which can't satisfy the real time request of industrial control has become the main obstacle in application on filed device layer network.
以太网存在通信不确定性，不能满足实时性要求，成为应用于工业现场设备层网络的主要障碍。
While it is usually adopts other protocols of the embedded device of industrial control and communication.
而在工业控制和通讯的嵌入式设备中，更多的是采用其它协议。
Its hardware components, function testing items, design of software, communication between industrial PC with device by using PCI interface chip (S5933) are introduced.
文章介绍了某型接口分组件功能测试系统的硬件组成、功能测试项目、软件设计和利用PCI接口芯片(S5 93 3)实现工业PC机和设备的通讯。
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