摘要
从如何确定可编程序控制器(PLC)I/O点数、所需存储器容量、PLC的功能、外部设备特性等几方面,探讨了如何选择有较高性能价格比的PLC和设计相应的控制系统。
How to confirm I/O quantity of PLC, the capacity of its memory,its function, the characteristic of its peripheral equipment and so on,a discussion to selecting PLC with a high proportion of quality to price and designing relative control system is presented.
出处
《石油化工自动化》
CAS
2005年第5期22-24,共3页
Automation in Petro-chemical Industry
