To avoid interfering by work, data were sampled through a multi-layers network which synthesize the field-bus and Ethernet and center on programmable logic controller.
为了排除人为干扰、提高可靠性，采集数据以可编程逻辑控制器为核心，通过现场总线和以太网的多层网络传送至数据库中。
Based on an embedded Ethernet, a communication controller with multiple interfaces for heterogeneous network interconnection is presented in this paper.
文中基于嵌入式以太网技术，设计了一种具有多种接口，能实现异种网络互联的通信控制器。
A new networking project based on Ethernet for different numerical control systems and communication controller for network communication are designed in this paper.
本文设计了一种新的基于以太网的异构数控系统联网方案，并且设计出用于联网通讯的通讯控制器。
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