摘要
介绍了利用VB语言实现污水处理站上位机与C2 0 0H系列PLC通信的方法 ,并结合污水处理站监控系统对通信硬件、通信协议和通信程序以及实现过程中应注意的问题作了详细的描述。经过一年运行表明 ,上位机与PLC的通信稳定可靠、使用方便 ,有效地提高了监测。
The method of implementing communication between host computer and C200H Series PLC in sewage processing station by using VB language is introduced.Based on monitoring system of sewage processing station Communication hardware,communication protocol and communication program as well as cautions in implementation are described in detail.ln one year operation,the communication between host computer and PLC is stable;the operation is ease,the level of monitoring and management is enhanced effectively.
出处
《自动化仪表》
CAS
北大核心
2003年第3期42-44,共3页
Process Automation Instrumentation
