plc中英對(duì)照外文翻譯----可編程控制器技術(shù)討論與未來(lái)發(fā)展-plc設(shè)計(jì)-全文預(yù)覽
【正文】 ot of kinds, for example the exterior break off, correspondence in of send out and accept the interruption and settle and the clock that count break off, still have the WDT to reset the interruption etc., they enriched the CPU to respond to the category while handle various business. Speak thus perhaps you can39。t send out and accept at the same time, for example when you make a phone call is to can39。t guarantee the equipments by the control of the single machine, but pass the information exchanges of the equipments and equipments to attain the result that we want. For example fore pack and the examination of the empress work preface, we will arrive wrapping information feedback to examine the place, and examine the information of the place to also want the feedback to packing. Pass the information share thus to make both the chain connect, being a total body, the match of your that thus make is more close, at each other attain to reflect the result that mutually flick. The PLC correspondence has already e more body now its value, at the PLC and correspondence between PLC can pass the munication of the information and the share of the data’s to guarantee that of the equipments moderates mutually, the result that arrive already to repair with each other. Data conversion the adoption RS232 between PLC connect to e to the transmission data, but the RS232 pick up a people and can guarantee 10 meters only of deliver the distance, if in the distance of 1000 meters we can pass the RS485 to carry on the correspondence, the longer distance can pass the MODEL only to carry on deliver. The PLC data transmission is just to be called a form to it in a piece of and continuous address that the data of the inner part delivers the other party, we, the PLC of the other party passes to read data in the watch to carry on the operation. If the data that data in the watch is a to establish generally, that is just the general data transmission, for example today of oil price rise, I want to deliver the price of the oil price to lose the oil ally on board, that is the share of the data。 The saving machine can deposit the data that the I/ O input in the saving machine, and in work adjusting to bee tired to add the machine and I/ Os to connect, saving machine separately saving machine RAM of the procedure saving machine ROM and dates, the ROM can do deposit of the data permanence in the saving machine, but RAM only for the CPU putes the temporary calculation usage of hour of buffer space. The PLC anti interference is very and excellent, our root need not concern its service life and the work situation bad, these all problems have already no longer bee the topic that we fail, but stay to our is a concern to e to internal resources of make use of the PLC to strengthen the control ability of the equipments for us, make our equipments more gentle. PLC language is not we imagine of edit collected materials the language or language of Cs to carry on weaving the distance, but the trapezoid diagram that the adoption is original after the electric appliances to control, make the electrical engineering teacher while weaving to write the procedure very easy prehended the PLC language, and a lot of non electricity professional also very quickly know and go deep into to the PLC. Is PLC one of the advantage above and only, this is also one part that the people prehend more and easily, in a lot of equipments, the people have already no longer hoped to see too many control buttons, they damage not only and easily and produce the artificial error easiest, small is not a main error perhaps you can still accept。s machine bine, for resolve the very plicated problem to look for the best path. We e in sight of the control that links after the electric appliances in various situation, that is already the that time generation past, now of after use in the mold a perhaps simple equipments of grassroots control that the electric appliances can do for the low level only。t satisfied with the current manufacturing industry foreground, also can39。 更高層次的發(fā)展需要我們不斷的努力來(lái)取得。 PLC 也有類似的情況，在 PLC 內(nèi)部有一個(gè)看門(mén)狗 WDT，我們可以設(shè)置 WDT 一 個(gè)程序運(yùn)行的時(shí)間，當(dāng)程序運(yùn)行過(guò)程中出現(xiàn)程序跳轉(zhuǎn)錯(cuò)誤時(shí)或者程序繁忙時(shí)，程序的運(yùn)行時(shí)間超過(guò) WDT 的設(shè)置時(shí)間， CPU 轉(zhuǎn)而 WDT復(fù)位狀態(tài)。 PLC 還具有高級(jí)計(jì)數(shù)器的功能，當(dāng)我們?cè)诮邮芤恍└咚俚臄?shù)據(jù) 時(shí)，這里所說(shuō)的高速是在在微秒級(jí)的數(shù)據(jù)，比如條碼掃描機(jī)在不斷的掃描數(shù)據(jù)，數(shù)據(jù)處理器DSP 計(jì)算的高速信號(hào)等，我們就要采用到高級(jí)計(jì)數(shù)器來(lái)幫助我們進(jìn)行計(jì)數(shù)。當(dāng)我們遇到人身事故和意外情況時(shí)我們只要按下它，機(jī)器立即停止所有的操作，并等待處理完意外后再恢復(fù)操作。當(dāng)然中斷的級(jí)別根據(jù)各種 PLC 內(nèi)部 CPU 的資源有關(guān)，同時(shí)也跟 堆棧的容量大小也有關(guān)系。它的特點(diǎn)在于我們?cè)谠O(shè)備的操作過(guò)程中可能會(huì)遇到緊急的突發(fā)事件，我們要立刻的停下手上
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1