6SC9411-0FA00-489486模块备件用户手册

工业4.0时代，企业数字化转型与智能制造成大势，自动化水平的日益提高，工业互联网的迅速发展交织着IT(信息技术)、OT(运营技术)与CT(通讯技术)三条主线的加速融合。可编程逻辑控制器(PLC)作为OT以及工业自动化关键设备以及工业互联网底层的重要组件，也随之得到了巨大的进步。同时，由于设备、机器和工厂变得“更智能”，工业现场控制对PLC以及DCS等设备提出了更高的要求。智造“先行兵”，PLC助力工业控制实现自动化众所知周，PLC 是在传统的顺序控制器的基础上引入了微电子技术、计算机技术、自动控制技术和通讯技术而形成的新一代工业控制装置，目的是用来取代继电器、执行逻辑、计时计数等顺序控制功能，建立柔性的编程控制系统。目前，PLC 在传统功能的基础上增加了模拟量运算、PID 功能、通信功能以及更可靠的工业抗干扰技术等功能，广泛应用于工业生产的各个领域。因此PLC可简单理解为一种用于特定工业环境下的计算机，并具备多种优良性能，其硬件结构与计算机基本相同，具备CPU、I/O 模块、电源模块、底板、外设以及通信联网设备，采用了可编程的存储器对逻辑运算、顺序控制、计时计数和算数运算进行存储，并通过数字的、模拟的输入输出指令控制各种类型的工业生产过程。与通用的计算机相比，PLC 在工业领域的使用场景多、适应面广，并具备可靠性高、抗干扰能力强和编程简单等优点。

In the era of industry 4.0, the digitalization transformation and intelligent manufacturing of enterprises have become a general trend. The increasing level of automation and the rapid development of industrial Internet are intertwined with the accelerated integration of it (Information Technology), OT (operation technology) and CT (Communication Technology). Programmable logic controller (PLC), as the key equipment of OT and industrial automation and an important component of the bottom of industrial Internet, has also made great progress. At the same time, as equipment, machines and factories become "more intelligent", industrial field control puts forward higher requirements for PLC, DCS and other equipment. It is well known that PLC is a new generation of industrial control device formed by introducing microelectronics technology, computer technology, automatic control technology and communication technology on the basis of traditional sequential controller. Its purpose is to replace the sequential control functions such as relay, executive logic, timing and counting, and establish a flexible programming control system. At present, on the basis of traditional functions, PLC adds analog calculation, PID function, communication function and more reliable industrial anti-interference technology, which are widely used in various fields of industrial production. Therefore, PLC can be simply understood as a computer used in a specific industrial environment, and has a variety of excellent performance. Its hardware structure is basically the same as that of the computer. It has CPU, i/o module, power module, backplane, peripherals and communication networking equipment. Programmable memory is used to store logic operations, sequence control, timing and counting and arithmetic operations, and through digital Analog input and output instructions control various types of industrial production processes. Compared with general-purpose computers, PLC has many application scenarios and wide adaptability in the industrial field, and has the advantages of high reliability, strong anti-interference ability and simple programming.