可编程序控制器与计算机之间的区别越来越模糊,但仍可概括性地加以总结。可编程序控制器采用馈入“0”和“1”两种信号的逻辑电路,受一个由比较简单的关系式(如“与”、“或”和“非”指令、计时器等)所编制的程序控制。程序设计既可采用逻辑符号,亦可采用简单的可编程序控制器“语言”。这 The differences between PLCs and computers are becoming more and more obscure, but they can still be summarized in summary. The programmable logic controller uses a logic circuit fed into both the “0” and “1” signals and is controlled by a simpler relation (such as AND, OR, AND NOT instruction, timer, etc.) Preparation of the program control. Program design can use logic symbols, can also be a simple programmable logic controller “language.” This