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输入Execute为True时,无法启动新的运动。因为当Execute为True时,伺服状态机的状态为Stopping.
PLCopen中,Execute输入一般都是上升沿触发的,MC_Stop的输入涉及到轴的停止与启动,比较关键,因此需注意其用法。
只有当轴状态为StandStill时,才可以启动下一个运动,因此MC_Stop的输入Execute要设为False后,才能启动新运动。
2.2 添加几个常用功能块
常规编程操作,添加几个功能块。
MC_SetPosition:更改伺服轴的当前值。
MC_ReadActualPosition:读取轴的实时位置。
MC_ReadActualVelocity:读取轴的实时速度。
编写完成后,编译,生成代码并联机下载。
2.3 三个功能块的测试
在CFC程序中,无法在FB上直接对输入置位,复位,因此只能在监控变量列表下操作。
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