基于FINS协议的计算机与PLC以太网通信  

Ethernet Communication Between Computer and PLC Based on FINS Protocol

作　　者：吕琳[1] 王凤杰[1] 

机构地区：[1]莱芜职业技术学院,山东济南271100

出　　处：《工业控制计算机》2023年第11期50-52,共3页Industrial Control Computer

摘　　要：FINS协议用于OMRON的CompoBus/D、Controller Link、Ethernet等网络以及网络之间的通信。简要介绍了FINS协议,研究了基于FINS协议实现上位机和PLC以太网通信的方法。PLC选用OMRON CP1H型机,上位机采用Visual C++6.0编程,调用FINS指令向PLC发送命令,与PLC进行信息交换。给出部分程序代码。该方法可为进一步开发PLC监控系统提供了有价值的参考。FINS Protocol can be used in the OMRON networks communication such as CompoBus/D、Controller Link、Ethernet.Principles of FINS protocol are introduced briefly in this paper.The Ethernet communication method between master computer and PLC based on FINS protocol was investigated.OMRON CP1H PLC was chosen as a remote slave.The program in master computer used Visual C++6.0 is introduced and message exchange is realized by sending FINS command to PLC.Some program codes are given.This method can provide a valuable reference for the further development of PLC monitoring system.

关 键 词：VC++ PLC FINS协议 以太网通信 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TN915.04[自动化与计算机技术—控制科学与工程]