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近年，还出现了专门用于运动控制的PLC，即P（PROGRAMMABLE）M（MOTION）C（CONTROLLER），可编程运动控制器，简称PMC。又为PLC用于精度更高、运动行程更大、控制的坐标更多、操作更方便的运动控制提供了很好的平台。所以，用PLC进行运动控制，在相当程度上，可以代替价格比其昂贵的数控系统。
4．用于信息控制
信息控制也称数据处理，是指数据采集、存储、检索、变换、传输及数表处理等。
随着技术的发展，PLC不仅可用作系统的工作控制，还可用作系统的信息控制。
PLC用于信息控制有两种：**、兼用。
**：PLC只用作采集、处理、存贮及传送数据。
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