秋风远塞皂雕旗,明月高台金凤怀。
红妆肯为苍生计,女妖娆能有几?
两蛾眉千古光辉:汉和番昭君去,
越吞吴西子归。战马空肥。
高速计数器计数 1、动作要求: 1)PLC由STOP→RUN,对高速计数器C235清零; 2)按下启动后,高速计数器C235开始计数; 3)当高速计数器C235计数数值达到K6000时,对M8235置位,使高速计数器C235变为减计数器; 4)当高速计数器C235计数数值减到K0时,对M8235复位位,使高速计数器C235变为增计数器;并停止计数 5)将C235的数值通过4位一组的七段码显示出来。 2、实训材料表 序号 名称 型号与规格 单位 数量 1 微机 安装GX软件、 带有串口或USB转串口 台 1 2 传输电缆 SC09 条 1 3 实训操作箱 JH301A 台 1 4 计数器模块 JH301A-023 块 1 3、实训要求 1)电路设计: 根据给定的继电线路图,画出主电路,列出PLC控制I/O口(输入/输出)元件地址分配表,设计梯形图及PLC控制I/O口(输入/输出)接线图,根据梯形图,列出指令表。 2)程序输入及调试: 熟练操作编程软件,能正确的将所编程序输人PLC;按照被控设备的动作要求进行调试,达到设计要求。 4、I/O接线列表:

5、参考程序:



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