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用S7-200去测量转速 | 找知识-找PLC
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  2. 自动化系统
  3. SIMATIC S7-200

用S7-200去测量转速

• SIMATIC S7-200

我有S7-200一台.TD200一台和一只接近开关想要测量一台电机的转速,其速度在TD200上显示,怎样编程.先谢谢您啦.

最佳答案

用硬件中断做，S7-200 硬件中断点224为i0.0~i0.3
 在初始化程序中激活硬件中断
 在中断程序中添加
 ld sm0.0
 incw vw100
 vw100就是当前脉冲量
 然后根据单位时间的脉冲数转换为速度就可以了

提问者对于答案的评价：
OK

原创文章，作者：ximenziask，如若转载，请注明出处：https://www.zhaoplc.com/plc356780.html

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