描述
本指令单独使用,无须操作数,是程序的最后一条指令,表示程序到此结束。PLC在执行用户程序时,当执行到END指令时就停止执行程序阶段,转入执行输出刷新阶段。如果程序中遗漏END指令,编程器执行时则会显示出错信号:“NOENDINSET”:当加上END指令后,PLC才能正常运行。本指令也可用来分段调试程序。
3.互锁指令IL(02)和互锁清除指令ILC(03)
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