DDE技术在PLC自动化系统中的应用  

DDE in PLC automation system

作　　者：吴戈成 严硕林 

机构地区：[1]国家广电总局654台,新疆呼图壁831200 [2]国家广电总局916台,青海格尔木816000

出　　处：《自动化与仪器仪表》2011年第1期76-79,83,共5页Automation & Instrumentation

摘　　要：论述了一套基于Allen-Bradley公司的SLC5/04 PLC系统与上位工控计算机的通讯方式,它的核心是DDE标准技术,通过RSLinx服务器建立起发射机控制系统PLC与发射机自动控制系统的数据交换,完成远程监控发射机的目的。相比较其它下位机PLC与上位工控机的通讯方式,DDE技术在RSLinx服务器中有着非常典型的应用范例,并且通过VB6.0编程环境下常用控件的属性,对于开发发射机自动控制系统的VB编程语言有着较好的支持。该D D E技术具有安全性好,实时性强,可靠性高的特点。This article is to expound a set of communication way which is based on the SLC5/04 PLC system of Allen-Bradley Inc.and upper-end computer which is made up of Industrial Personal Computer,it＇s kernel is DDE standard technology,it build up data exchanging in PLC of transmitter control system and Transmitter Auto Control System through RSLinx server,to accomplish monitor and control transmitter remote.Release an activity with the other communication way which based on lower-end computer which is made up of PLC and upper-end computer which is made up of Industrial Personal Computer to compare,DDE technology has very typical Application example in RSLinx server,and though the normal control component＇s attribute in VB 6.0 programming environment,it has good support to VB programming language which is used to develop Transmitter Auto Control System.The DDE technology has better safety,strongly real-time,highly Reliability features.

关 键 词：DDE RSLinx服务器 VB 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]