开关定位在此模式，可以利用与基本程序没有冲突的程序段形式进行信息输入，实现机床的自动控制。
Positioning the switch in this mode enables the automatic control of the machines to use information entered in the form of blocks without interfering with the basic program.
浮球开关可以根据所需的水位变化，自动控制泵的启动与停止，不需专人看管。
Float switch according to the required water level changes, automatic control of pump start and stop, do not need special care.
单机自动控制由操作面板进行开关设定，由PLC自动执行。
Automatic control of individual machines is set by a switch on the face plate of operation desk and implemented by PLC automatically.
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