6ES7461-0AA00-7AA0 欢乐亿佳购
PLC即可编程控制器是指以计算机技术为基础的新型工业控制装置。PLC是一种专门为在工业环境下应用而设计的数字运算操作的电子装置，它采用可以编制程序的存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式的输入和输出，控制各种类型的机械或生产过程。PLC有较高的易操作行。它具有编程简单，操作方便，维修容易等特点，一般不容易发生操作的错误。对PLC的操作包括程序输入和程序更改的操作。程序的输入直接可显示，更改程序的操作也可以直接根据所需要的地址编号或接点号进行搜索或程序寻找，进行更改。PLC有多种程序设计语言可供使用。用于梯形图与电气原理图较为接近。容易掌握和理解。具有的自诊断功能对维修人员维修技能的要求降低。当系统发生故障时，通过硬件和软件的自诊断维修人员可以很快找到故障部位。PLC不需要大量的活动原件和连线电子原件。它的连线太少，系统的维修简单，维修时间短。PLC是为工业生产过程控制而门设计的控制装置，它具有比通用计算机控制更简单的编程语言和可靠的硬件。公司建造了欧洲条远距离电报线其编程采用统一的simatic编程工具(如step7)
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