摘要
介绍了PLC的结构组成、工作原理、发展方向以及PLC与计算机联网时通讯方面的基础知识及其数据传输的条件和具体实现。
The construction,the works principle,the development direction of the PLC system is introduced.The basic knowledge of communication,the condition and achievement of the data transmission when the PLC is connected with computers are described.
出处
《石油化工自动化》
CAS
2003年第6期41-43,共3页
Automation in Petro-chemical Industry
