孙福建，李奇，宋泉训

（淄博淄柴新能源有限公司，山东淄博 255000）

摘要：本文主要是对RS485通讯和以太网通讯在燃气发电机组上的应用,来比较二者的优缺点,同时通过试验来归纳出以太网通讯较之RS485通讯具有通讯延时时间短的优良特性。   

关键词：工业以太网；网络延长器；RS485通讯；延时时间短

Abstract: This paper compares the advantages and disadvantages of adopting RS485 communication and Ethernet communication in gas generating set. Besides, the shorter delay time in communication with Ethernet communication as compared to RS485 communication is concluded through experiment.

Key words: Industrial Ethernet; Network Extension Device; RS485 Communication; Short Delay Time