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OMRON PLC高速计数器功能随着生产力的发展和自动化水平的提高,在越来越多的控制过程中需要对高速脉冲信号进行处理,而普通的计数方式远远不能满足要求。如:PLC中计数器的最短计数周期为程序的扫描周期,随着系统程序增加,则计数周期也将随之增加,这样PLC就无法检测到比程序扫描周期更短的脉冲信
OMRON PLC High-speed Counter Function With the development of productivity and automation, the high-speed pulse signal needs to be processed in more and more control processes, and the ordinary counting method can not meet the requirements. For example, the shortest counting period of the counter in PLC is the scanning period of the program. As the system program increases, the counting period will also increase, so that the PLC can not detect the pulse signal shorter than the program scanning period