摘要
介绍了用西门子PLC构成温控系统的设计与开发,讨论了PLC输入输出控制的外部接口方法及显示扩展的软硬件设计,并对PLC和PC机的通信和数据处理技术进行了分析,给出了部分程序。
The design and development of temperature control System composed of Siemens PLC are introduced. The external interfacing method of PLC input and output control as well as the design of hardware and software for display expansion are discussed. The communication between PLC and PC and the data processing technology are analyzed. partial program is given.
出处
《自动化仪表》
CAS
2005年第4期48-50,共3页
Process Automation Instrumentation
