摘要
PLC可编程序控制器在应用中常遇到由于输入点不够而增加硬件设置的问题。如何节约PLC输入点是精简电控系统结构,降低成本的关键之一。文章主要介绍了节约PLC输入点的几种方法。
In application of PLC programmable controllers, it is ofter to meet with the problem to have to add hardware installations due to that the input points are not enough. How to save PLC input points is one of the keys to simplify electrical control system structure and reduce cost. The article introduces mainly several methods to save PLC input points.
