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可編程控制器plc外文翻譯-plc設(shè)計(jì)(存儲版)

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【正文】 ield with variable ratio of 1:1 isolation transformer to reduce the interference between the equipment and land. Power input can also be cascaded LC filter circuit Second, installation and wiring 1. Power lines, control lines and power lines and PLC I/O lines should be split wiring, isolation transformer and PLC and I/O should be used between the cable connections. 2. PLC should stay away from strong interference sources such as welding, highpower silicon rectifier devices and large power equipment, not with the highvoltage electrical switch installed in the same cabi. 3. PLC input and output separately from the best alignment, switch and analog should be laid separately. The transmission of analog signals should be shielded cable, one end or both ends of the shield should be grounding resistance should be less than the shielding layer 1 / 10. 4. PLC basic unit and expansion modules and functional modules, connecting cables 8 should be installed separately, to prevent interference from outside signals. 5. AC output line and DC output lines do not use the same cable, the output line should be far from power lines and power lines, to avoid parallel. Third, I/O wiring terminal 1. Input Connection (1) Input connection generally should not exceed 30 meters. But if the environment interfere with small, small voltage drop, the input terminal Longer be appropriate. (2) Input / output lines can not be used with a cable, input / output lines should be separated. (3) The extent possible, normally open contact form connected to the input in the establishment of the ladder and relay the same schematic 2. Output connection (1) Output terminal is divided into separate output and public output. In different groups, using different types and voltage levels of output voltage. However, output in the same group can only use the same type, the same voltage level of power. (2) Since the PLC39。提出 PLC 概念的是美國通用汽車公司。目前,可編程控制器已成為工廠自動化的強(qiáng)有力工具,得到了廣泛的普及推廣應(yīng)用。 雖然現(xiàn)在 PLC 已經(jīng)被廣泛地應(yīng)用于工業(yè)領(lǐng)域,但是 PLC 控制系統(tǒng)的發(fā)展仍然處于不斷摸索階段。因此, PLC 軟件設(shè)計(jì)中就被加入越來越多的主觀成分。 不同的技術(shù)方法有大量的并且很簡單的固定自動化任務(wù) 。一些制造商生產(chǎn) 運(yùn)動控制單元 與 PLC 集成、 Gcode(涉及數(shù)控機(jī)床)可以用于 指導(dǎo)機(jī) 器運(yùn)作 。業(yè)界基于 IEC611313創(chuàng)建程序上運(yùn)行的 RTU 和 PLC 功能塊語言規(guī)范,盡管幾乎所有供應(yīng)商還提供專有的替代方案及相關(guān)的開發(fā)環(huán)境。 CPU 主要由操作員,控制器和寄存器,在它們之間的數(shù)據(jù)鏈路控制及 CPU 單元也包數(shù)據(jù)總線、 CPU 芯片、總線接口和周邊相關(guān)電路。 I/O 模塊集成了 PLC的 I/O 電路,其輸入暫存器反映輸入信號狀態(tài),輸出點(diǎn)反映輸出鎖存器狀態(tài)。與 此同時(shí),他們中的一些人做這項(xiàng)工作的輸入電路提供 24V 供電。 可編程序控制器 (PLC)是一種專門為工業(yè)生產(chǎn)控制裝置服務(wù)的,通常不需要采取措施,它可以直接用于工業(yè)環(huán)境。 第二, 安裝、接線 輸電線路,操縱線、電源線及 PLC 的 I/O 線必須分離。但如果環(huán)境干擾小,電壓降小的輸入端是再 合適不過的。 (3)繼電器輸出,感性負(fù)載負(fù)擔(dān)的大小將影響到 繼電器的壽命,因此,選擇使用繼電器感性負(fù)載加長繼電器的壽命。但是當(dāng)可編程序控制器 (PLC)中央處理器不能控制輸出故障,因此會損害用戶負(fù)載,確保設(shè)備的安全條件運(yùn)行,需要設(shè)計(jì)的外部電路來預(yù)防。離散 信號發(fā)送使用電壓或電流,在特定的范圍,對指定,另一個(gè)為關(guān)閉。 數(shù)字或離散信號就像二進(jìn)制開關(guān) , 創(chuàng)造出一個(gè)簡單的開或關(guān)信號 ( 分別為 1 或 0,真或假 )??赡孢\(yùn)行如正向和反向運(yùn)行的控制系統(tǒng),設(shè)定一個(gè)外部電氣聯(lián)鎖保護(hù),往復(fù)式和下移動的控制系統(tǒng),設(shè)定外部界限的保護(hù)電路。 (2)由于可編程序控制器 (PLC)的輸出設(shè)備是包裝在印制線路板及連接端子板,如果負(fù)載短路連接輸出部分、電路板被燒毀。 交流輸出線和直流輸出線路都使用相同的電纜 , 輸出線應(yīng)遠(yuǎn)離電線和電線,為 6 了避免平行 。當(dāng)環(huán)境振動是不可避免的,使它能吸收震蕩時(shí)采取措施,如膠,或使用減震。 可編程序控制器 (PLC)通訊網(wǎng)絡(luò)憑借先進(jìn)的工業(yè)網(wǎng)絡(luò)技術(shù)可以迅速和有效率地收集、轉(zhuǎn)讓的生產(chǎn)和管理的數(shù)據(jù)。 按 I/O 點(diǎn)數(shù)確定模塊規(guī)格及數(shù)量, I/O 模塊可多可少,但其最大數(shù)受 CPU 所能管理的基本配置的能力,即受最大的底板或機(jī)架槽數(shù)限制。 CPU 速度和內(nèi)存容量是 PLC 的重要參數(shù),它們決定著 PLC 的工作速度, IO 數(shù)量及軟件容量等,因此限制著控制規(guī)模。當(dāng) PLC 投入運(yùn)行時(shí),首先它以掃描的方式接收現(xiàn)場各輸入裝置的狀態(tài)和數(shù)據(jù),并分別存入 I/O 映像區(qū),然后從用戶程序存儲器中逐條讀取用戶程序,經(jīng)過命令解釋后按指令的規(guī)定執(zhí)行邏輯或算數(shù)運(yùn)算的結(jié)果送入 I/O 映像區(qū)或數(shù)據(jù)寄存器內(nèi)。 RTU,然而通常不支持或控制回路的控制算法。非常高速的能力范圍的性能或精度控件也可能需要自定義的解決方案 , 例如飛機(jī)飛行的控件。 PLC 應(yīng)用程序通常是高度定制系統(tǒng),因此成本包裝可編程序控制器 ( PLC) 的費(fèi)用比一個(gè)具體定制設(shè)計(jì)的小控制器要高 。例如VLSI(超大規(guī)模集成電路)的設(shè)計(jì),就可以依靠計(jì)算機(jī)輔助設(shè)計(jì)工具,高效率地進(jìn)行。此外,一項(xiàng)關(guān)于 PLC 市場的研究報(bào)告中指出,當(dāng)時(shí)的 PLC 硬件市場價(jià)值已超過 8 億美元,并且億年銷售增長量 15 萬美元的速度快速發(fā)展??删幊炭刂破骷捌溆嘘P(guān)外圍設(shè)備,易于與工業(yè)控制系統(tǒng)聯(lián)成一個(gè)整體,易于擴(kuò)充其功能的設(shè)計(jì)。s machine bine, for resolve the very plicated problem to look for the best path. 1 中文譯文 : 可編程控制器 PLC 1 PLC 簡介 可編程控制器是 60 年代末在美國首先出現(xiàn)的,當(dāng)時(shí)叫可編程邏輯控制器 PLC( Programmable Logic Controller),目的是用來取代繼電器。 switch cabi, the lower should be a ventilation shutters, to prevent too much direct sunlight。 for example, 4 aircraft flight controls. Programmable controllers are widely used in motion control, positioning control and torque control. Some manufacturers produce motion control units to be integrated with PLC so that Gcode (involving a CNC machine) can be used to instruct machine movements. PLC may include logic for singlevariable feedback analog control loop, a proportional, integral, derivative or PID controller. A PID loop could be used to control the temperature of a manufacturing process, for example. Historically PLC was usually configured with only a few analog control loops。 ② programming visual, simple。s role, wraps PLC to have CPU at least every time, it the function which entrusts with according to the PLC system program receives and stores the user program and the data, with scanning way gathering the condition or the data which sends by the scene input device, coexisting enters the stipulation in the register, 5 simultaneously, diagnoses the power source and in the PLC internal circuit active status and the programming process grammatical error and so on. After enters the movement, one by one reads the instruction from the user program memory, the duty which stipulated according to the instruction produces the corresponding control signal again after the analysis, directs the related control circuit. CPU mainly by the operator, controller, register and implementation of data link between them, control and state BUS, CPU unit also includes peripheral chips, bus interface and related circuitry. Memory is mainly used for storing programs and data, is an integral unit PLC. In the user view, unnecessarily detailed analysis of the CPU39。s output devices are packaged in printed circuit board and connected to the terminal board that if the load shortcircuits connecting the output ponents, printed circuit boards will be burned, thus, applied fuse protected output devices. (3) The relay output, inductive load
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