5466-31 6可編程序操控器programmable logic controller在工廠主動化中占有無足輕重的位置。技能的不斷發(fā)展地了基于pIc為中心的操控體系
在操控功用、操控水平等方面的進步。一起對其操控方法、 運轉(zhuǎn)水平的要求也越來越高，因而交互式操作界面、報警記載和打印等要求也成為整個操
控體系中重要的內(nèi)容。5466-316關(guān)于那些 工藝進程較雜亂，操控參數(shù)較多的工控體系來說，特別顯得重要。新-代工業(yè)人機界面的呈現(xiàn)，關(guān)于在構(gòu)
建plc工控體系時完結(jié)上述功用，提供了-種簡潔可行的途徑。
工業(yè)人機界面的特點和功用
5466-316工業(yè)人機界面human

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machine interface,簡稱hmi,又稱接觸屏器，是-種智能化操作操控顯現(xiàn)裝置。工業(yè)人機界面以特別規(guī)劃的計算
機體系32位risc cpu芯片為中心，在stn、tft波晶 顯現(xiàn)屏或el電發(fā)光顯現(xiàn)器上罩蓋有通明的5466-316電阻網(wǎng)絡(luò)式接觸屏。觸動屏幕時，電阻網(wǎng)絡(luò)上的
電阻和電壓發(fā)作變化并由軟件計算出接觸位置。
nmi的主要功用有:數(shù)據(jù)的輸入與顯現(xiàn);體系或設(shè)備的操作狀況方面的實時信息顯現(xiàn);在hmi 上設(shè)置接觸控件可把hmi作為操作面板進行操控操作;
報警處理及打印;此外，新-代工業(yè)人機界面還具有簡略的編程、對輸入的數(shù)據(jù)進行處理、數(shù)據(jù)登錄及配方等智能化操控功用。
當(dāng)hmi用于plc操控體系時，hmi與plc之間經(jīng)過串口以direct link (直接連接)方法進行通訊。在該方法下，hmi依據(jù)要求直接讀入pIc的數(shù)據(jù)或把數(shù)
據(jù)寫入plc相應(yīng)的地址中。因為內(nèi)裝通訊協(xié)議，因而無須編制通訊程序，只需所用plc類型即通訊協(xié)議，運轉(zhuǎn)時便可完結(jié)通訊。因而大大減少了plc用.
戶程序的擔(dān)負(fù)。在體系規(guī)劃時，直接操控部件與其對應(yīng)pIc的輸入輸出(i/o) 、寄存器(r) 、中心寄存器(m)的地址，運轉(zhuǎn)時hmi就能主動和plc
進行數(shù)據(jù)交換。直接讀取或改寫plc相應(yīng)地址的內(nèi)容,并據(jù)此改變畫面上顯現(xiàn)內(nèi)容。一起經(jīng)過對hmi的接觸操作， 可向plc相應(yīng)的地址輸入數(shù)據(jù)。

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5466-31 6 programmable logic controllers play an insignificant role in factory automation. The continuous development of skills is based on a PIC-centric control system
Progress in control function, control level, etc. Together, the requirements for its control method and operation level are also getting higher and higher, so the requirements for interactive operation interface, alarm recording and printing have also become the whole operation
Important content of control system. 5466-316 is particularly important for those industrial control systems with messy process and more control parameters. The presentation of new-generation industrial human-machine interface, about construction
The construction of plc industrial control system completes the above functions and provides a simple and feasible way.
The characteristics and functions of industrial man-machine interface
5466-316 Industrial human machine interface, referred to as hmi, also known as contact screen, is a kind of intelligent operation control display device. Industrial human-machine interfaces to specially planned calculations
The 32-bit risc cpu chip is the center of the system, and the 5466-316 resistance network contact screen is covered with the stn, tft wave crystal display screen or el electroluminescent display. Touch the screen when the resistor is on the network
The resistance and voltage change and the contact position is calculated by software.
The main functions of nmi are: data input and display; Real-time information on the operating status of the system or equipment is displayed; The hmi can be controlled by setting the contact control on the hmi as the operation panel.
Alarm processing and printing; In addition, the new-generation industrial human-machine interface also has simple programming, processing of input data, data login and formula and other intelligent control functions.
When the hmi is used in the plc control system, the communication between the hmi and the plc is conducted by direct link (direct connection) through the serial port. In this method, the hmi directly reads the pIc data or the number as required
Data is written to the appropriate address of the plc. Because of the built-in communication protocol, there is no need to prepare a communication program, just use the plc type that is the communication protocol, and the communication can be completed during operation. Therefore, the use of plc is greatly reduced.
The responsibility of the account program. In the system planning, directly control the components and their corresponding pIc input and output (i/o), register (r), center register (m) address, operation hmi can be active and plc
Exchange data. Directly read or rewrite the content of the plc corresponding address, and change the content displayed on the screen accordingly. Together with the contact operation of the hmi, data can be entered into the corresponding address of the plc.

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