摘要
介绍了一种基于PLC的双液体分层控制系统。通过西门子CPU224XP可编程控制器,配以变频器、电动阀和流量计实现双液体的分层控制。重点介绍系统的硬件结构设计及系统的控制方法。可促进系统在工业生产中的广泛应用。
This article introduces a PLC-based dual-liquid hierachical control system,realized through SIEMENS CPU224 XP Programmable Logic Controller in combination with a frequency converter,an electrically operated valve and a flow meter,with emphasis on the design of the hardware structure as well as system control method. This research project can promote wide application of the system in industrial production.
出处
《电气自动化》
2015年第2期95-96,110,共3页
Electrical Automation
关键词
PLC
MM420
电动调节阀
流量计
工控机
液位计
PLC
MM420
electrically operated valve
flow meter
industrial personal computer
content gauge
