3PCS模块全新现货库存

易卖工控网（www.ymgk.com）提供”3PCS模块全新现货库存”，产品详情：品牌/厂家：、型号：3PCS、成色：全新、货期：现货 1天内发货、保修：180天，更多产品详情就上易卖工控网。

什么是可编程控制器?你知道吗?提到可编程控制器，各位或多或少都有所耳闻。小编还是给大家普及下可编程控制器的专业解释：可编程控制器是在电器控制技术和计算机技术的基础上开发出来的，并逐渐发展成为以微处理器为核心，把自动化技术、计算机技术、通讯技术融为一体的新型工业控制装置。PLC已被广泛应用于各种生产机械和生产过程的自动控制中，成为一种重要、普及、应用场合多的工业控制装置，被公认为现代工业自动化的三大支柱(PLC、机器人、CAD/CAM)之一。对于不太了解可编程控制器的工程师们，要好好阅读下面的内容哟，必有收获!

一、功能丰富

可编程控制器的功能非常丰富。这主要与它具有丰富的处理信息的指令系统及存储信息的内部器件有关。

它的指令多达几十条、几百条，可进行各式各样的逻辑问题的处理，还可进行各种类型数据的运算。凡普通计算机能做到的，它也都可作到。

它的内部种种继电器，相当于中间继电器，数量更多。内存中一个位就可作为一个中间继电器，怎么不多!

它的计数器、定时器也很多，是继电电路所望尘莫及的。小小的箱体或模块，其内部定时器、计数器可达成百、成千。这也是因为只要用内存中的一个字，再加一些标志位，即可成为定时器、计数器，所以才那么多。

而且，这些内部器件还可设置成丢电保持的，或丢电不保持的，即上电后予以清零的。以满足不同的使用要求。这些也是继电器件所难以做到的。

它的数据存储区还可用以存储大量数据，几百、几千、几万字的信息都可以存，而且，掉电后还不丢失。

可编程控制器还有丰富的外部设备，可建立友好的人机界面，以进行信息交换。可送入程序，送入数据，可读出程序，读出数据。而且读、写时可在图文并茂的画面上进行。数据读出后，可转储，可打印。数据送入可键入，可以读卡入，等等。

可编程控制器还具有通讯接口，可与计算机链接或联网，与计算机交换信息。自身也可联网，以形成单机所不能有的更大的、地域更广的控制系统。

可编程控制器还有强大的自检功能，可进行自诊断。其结果可自动记录。这为它的维修增加了透明度，提供了方便。

丰富的功能为可编程控制器的广泛应用提供了可能;同时，也为工业系统的自动化、远动化及其控制的智能化创造了条件。

像可编程控制器这样集丰富功能于一身，是别的电控制器所没有的;更是传统的继电控制电路所无法比拟的。

二、使用方便

用可编程控制器实现对系统的控制是非常方便的。这是因为：首先可编程控制器控制逻辑的建立是程序，用程序代替硬件接线。编程序比接线，更改程序比更改接线，当然要方便得多!

其次可编程控制器的硬件是高度集成化的，已集成为种种小型化的模块。而且，这些模块是配套的，已实现了系列化与规格化。种种控制系统所需的模块，可编程控制器厂家多有现货供应，市场上即可购得。所以，硬件系统配置与建造也非常方便。

正因如此，用可编程序控制器才有这个“可”字。对软件讲，它的程序可编，也不难编。对硬件讲，它的配置可变，而且也易于变。

What is a programmable controller? You know what? When it comes to programmable controllers, you have heard of them more or less. Xiaobian is still a professional explanation for popularizing the programmable controller: the programmable controller is developed on the basis of electrical control technology and computer technology, and has gradually developed into a new industrial control device with microprocessor as the core and integrating automation technology, computer technology and communication technology. PLC has been widely used in the automatic control of various production machines and production processes. It has become the most important, popular and most applied industrial control device. It is recognized as one of the three pillars of modern industrial automation (PLC, robot and CAD / CAM). For engineers who don't know much about programmable controllers, you should read the following contents well, and you will gain!
1、 Rich functions
The functions of programmable controller are very rich. This is mainly related to its rich instruction system for processing information and internal devices for storing information.
It has dozens or hundreds of instructions, which can deal with all kinds of logic problems and calculate all kinds of data. Any ordinary computer can do, it can also do.
Its internal relays are equivalent to intermediate relays, and the number is more. One bit in the memory can be used as an intermediate relay. Why not!
It also has many counters and timers, which are beyond the reach of relay circuits. The internal timer and counter of a small box or module can reach hundreds or thousands. This is also because as long as you use a word in memory and add some flag bits, you can become a timer and counter, so there are so many.
Moreover, these internal devices can also be set to be maintained or not maintained after power loss, that is, cleared after power on. To meet different use requirements. These are also difficult for relay devices to do.
Its data storage area can also be used to store a large amount of data. Hundreds, thousands or tens of thousands of words of information can be stored, and it will not be lost after power failure.
The programmable controller also has a wealth of external equipment, which can establish a friendly man-machine interface for information exchange. It can send program, send data, read program and read data. Moreover, reading and writing can be carried out on the picture with both pictures and texts. After the data is read out, it can be dumped and printed. Data input can be typed, card read, etc.
The programmable controller also has a communication interface, which can be linked or networked with the computer to exchange information with the computer. It can also be networked to form a larger and wider control system that a single machine cannot have.
The programmable controller also has powerful self-test function, which can carry out self diagnosis. The results can be recorded automatically. This adds transparency and convenience to its maintenance.
The rich functions make it possible for the wide application of PLC; At the same time, it also creates conditions for the automation, telecontrol and intelligent control of industrial systems.
Such a set of rich functions as programmable controller is not available in other electric controllers; It is unmatched by the traditional relay control circuit.
2、 Easy to use
It is very convenient to control the system with programmable controller. This is because: first, the establishment of PLC control logic is a program, which replaces the hardware wiring with a program. Programming is more convenient than wiring, and changing the program is more convenient than changing the wiring!
Secondly, the hardware of PLC is highly integrated and has been integrated into various miniaturized modules. Moreover, these modules are matched and have realized serialization and standardization. The modules required by various control systems are available in stock from PLC manufacturers and can be purchased on the market. Therefore, the hardware system configuration and construction are also very convenient.
It is for this reason that the word "Ke" can be used with programmable controller. For software, its program can be programmed and is not difficult to compile. For hardware, its configuration is variable and easy to change.