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本文简要介绍可编程序控制器的工作原理,以及在中波500kW发射机上用其代替老式继电器控制的方法、主要的逻辑程序和实际效果。
This article briefly introduces the working principle of programmable logic controller, as well as in the wave 500kW transmitter to replace the old-fashioned relay control method, the main logic program and the actual results.