摘要
本文介绍了基于西门子S7-200系列PLC的水泥厂配料控制系统。文中研究了利用PLC自由口通讯协议实现两个S7-200控制站之间以及PLC与上位机之间的通讯。
s:The paper specifically illustrates the control system for material blending in cement plants, which is based on Siemens's S7-200 Programmable Logical Controller?This paper investigated the application of user-defined protocol with freeport mode to realize the communication among S7-200 Control Sets and computer.
出处
《微计算机信息》
2004年第9期4-5,共2页
Control & Automation
关键词
自由口通讯
配料控制系统
freeport mode
the control system for material blending
