采用PLC的高速计数器进行测量轮正转和反转时的脉冲信号的采集，通过进一步程序运算得到绝对位移量。

The pluses comes from coder to send to the high speed counter, and the number of the high speed counter is operated in the program of PLC to get the absolute displacement anticipated.

youdao

该程序还可以进一步地简化。

The program could simplify further.

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如果想进一步研究这个程序是如何构建的，可通过本文附带的下载中其余的示例进行了解。

If you want to examine how this program is built more closely, you can find it, along with the rest of the examples for this article, in the attached download.

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So when you're really stuck, just get somebody.

让我进一步弄清了这个程序。

麻省理工公开课 - 计算机科学及编程导论课程节选