The article introduces mainly several methods to save PLC input points.
文章主要介绍了节约PLC输入点的几种方法。
How to save PLC input points is one of the keys to simplify electrical control system structure and reduce cost.
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。
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.
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。
The paper mainly discussed the practical connection modes in the PLC the points of attention for PLC control system, so as to improve input and output interface and the system safety and reliability.
主要论述了在PLC控制系统中，为了提高系统的安全可靠性，PLC的输入输出接口应注意的事项和较实用的接线方式。
The paper mainly discussed the practical connection modes in the PLC the points of attention for PLC control system, so as to improve input and output interface and the system safety and reliability.
主要论述了在PLC控制系统中，为了提高系统的安全可靠性，PLC的输入输出接口应注意的事项和较实用的接线方式。
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