论文部分内容阅读
主要介绍基于西门子S7-200PLC的转速信号频率的测量方法。通过西门子S7-200PLC发出的高速脉冲,利用中断控制指令和高速计数器的功能实现频率测量,经测试表明,其测量精度满足现场运行需求。
Mainly based on Siemens S7-200PLC speed signal frequency measurement method. Through the high-speed pulse sent by Siemens S7-200PLC, the use of interrupt control instructions and high-speed counter function to achieve the frequency measurement, the test shows that the measurement accuracy to meet the needs of field operation.