| 1中国石油天然气总公司 2中国石化集团管道储运公司
关键词： 主机与电气系统通信 MODBUS协议 方法 步骤
库鄯线自动化程度达到了90年代国际先进水平，其中很重要的一个环节是成功地实现了主机系统与电气系统的通信。本文讨论了两系统所用MODBUS通信协议、实现方法、步骤以及所存在问题及相应措施。
Carrying the Communication Interface of Mainframe System and Electrical System of Ku-Shan Transportation Pipeline into Effect
Liang Jianqing
China petroleum pipeline company Xi'an dispatch center,Xi'an,710021
Abstract：The automation of Ku-Shan transportation pipeline arrive at the intern ational advanced degree in the late nineties.It is important link that the commu nication interface of mainframe system and electrical system was carried out suc cessfully.This paper discuss the MODBUS protocol 、the method of carry out、proc ess that used for the couple system.Besides,It also called about some problems and corresponding measure.
Key Words：The Communication of Mainframe System and Electrical System，MODBUS P rotocol Method，Process
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