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Industrial Ethernet all the rage: Industrial Ethernet is designed to deal with harsh environments, data collisions, factory noise, factory process needs

机译:工业以太网风靡一时:工业以太网旨在处理恶劣的环境,数据冲突,工厂噪声,工厂过程需求

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摘要

Ethernet is a well known and recognized technology in the home and office environment. Recently, it has become the hottest trend in moving data in industrial applications on the factory floor. The factory floor, however, is a much different environment than home and office environments. This article highlights the differences between industrial and commercial Ethernet by comparing communication needs, process concerns, environmental challenges, and hardware. Industrial Ethernet has unique requirements based on two-way communications. To understand this, think about a possible application at a bottle-filling plant. Assume the plant is creating a new microbrew beer, Automation Ale. The filling operation will be run by an industrial Ethernet network. The network works well because it uses "hand-shaking" to ensure message delivery. To illustrate this attribute, let's say our bottling device begins filling a bottle of Automation Ale at the command of the controlling PLC. The PLC is also responsible for sending the "stop filling" command when the bottle is full. If the message is lost on the network, the PLC is aware because it does not receive a delivery response, (part of the handshaking) so it knows to resend the command.
机译:以太网是家庭和办公室环境中众所周知的公认技术。最近,它已成为在工厂现场工业应用中移动数据的最热门趋势。但是,工厂车间的环境与家庭和办公室环境大不相同。本文通过比较通信需求,过程问题,环境挑战和硬件,突出了工业以太网与商用以太网之间的差异。工业以太网基于双向通信具有独特的要求。要了解这一点,请考虑在灌装厂中可能的应用。假设该工厂正在生产一种新的微酿啤酒,即Automation Ale。填充操作将通过工业以太网进行。该网络运行良好,因为它使用“握手”来确保消息传递。为了说明此属性,假设我们的装瓶设备在控制PLC的命令下开始填充一瓶Automation Ale。当瓶子装满时,PLC还负责发送“停止灌装”命令。如果消息在网络上丢失,则PLC会知道,因为它没有收到传递响应(握手的一部分),因此它知道重新发送命令。

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