基于Delphi7.0的上位机与PLC的通信  

Communication between PLC and host computer based on Delphi 7.0

作　　者：安宪军[1] 黄尔烈[1] 贾少锐[1] 张常全[2] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038 [2]邯郸职业技术学院,河北邯郸056001

出　　处：《微计算机信息》2007年第03S期47-48,246,共3页Control & Automation

摘　　要：本文介绍在将计算机与PLC结合起来,组成高性能价格比的小型集散控制系统―热电厂循环水过程控制系统中,在基于Delphi7.0上位机监控软件开发环境中如何实现上位机与S7-200系列PLC之间通信。This paper introduces the realization of communication between S7-200 PLC and host computer based on Delphi 7.0 in the high ratio of capability and price DCS syste which is the process control system about the reuse of circulating cooling water from power plants and which is builded by the combining of host computer and S7-200 PLC .

关 键 词：上位机 S7-200PLC 串行通信 DELPHI7.0 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]