本文以FX2系列可编程控制器为例，从运用的角度介绍了不同类型计数器的运用特点，指出了编写程序应注意的问题。
This article introduced the characteristics of different kinds in various applications through examples of FX2 programmable counter and for attention in programming are pointed out.
可编程控制器中的计数器是基本编程元件之一，它容量大、种类多、使用灵活，是程序中常用的编程元件。
The Programmable counter is one of the basic program elements. Its distinguish features are large capability, variety of kinds, and easy to use.
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