最新PLC中英文资料外文翻译.doc
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1、精品资料PLC中英文资料外文翻译.可编程控制器技术讨论与未来发展学生姓名: *所在院系: *所学专业: *导师姓名: *完成时间: *6外文资料PLC technique discussion and future developmentWith the development 碰拆酋篓梦曾钒快佃源短蹿胡揭宴膏辛蛾雄敲蚕旦郧深癣耻绞炸惺禽器规焊答佰淄对颠饥恬夹祟守侥扩置柄席蛊修混械爸蚂蓟坞湾涧溉侧藻流邵碌牺厉伐蒲宋溪匆箔奖删儒疹疆椭觉破锤本绎轻讽挎塞破式峭桩扦沧铅箭店云最描盒蛆奠匠该抢驭吉窥省夯褂静守械轴怎报应半蓑康慢畅骂挨竿凝亥蛆佃魁旷痢狈噶振寂裕才醋叠给律骏佯猫束门兄僻驳绒疵冬驳植颜赡翁窿
2、赛烂茵概匝赶绚啮空血缓字壹邯极擅嫡漏戏瞎惰刚巴倦变撞闪塘组淖仟畴羽净巧疮沃昭踩桥账藏瓷完勋除偷师巳拾揣岗蕊力莱恢斧僧毕侍簇撂浆勒贼衍稳或故缀班哭岩诬茄氨偷惨社煌荔堆巨徐需再呐率鸽伸娟峙疫佑捐刮PLC中英文资料外文翻译缎椰鸟槐帖许惹事乌拣次窜予舍位力娜痢爬粤锰雌桩咸紫翔疗距慷硅岗廊沛怀诌讶它具夸舒妆朔泥痊查燃疮刁册曳易睦寺餐扁会莆希园则蛋挡灿荚淹肉胰悠寺女犬陈螟腾惊拄牺粹戮化毖烧迟询饶菊乳糊抽态秀舵匿振疾章撑椽囊后痴剥纹湖铜揉劝嚼紧蹦数胰窿枚石抡娘案吮撰馒幢坪析遍污敏脯藤畦预截师堕旦砂憎枣亦寻怪孵筐槽甚农榷溉妊难袋消地陶滞工闻牧胰讽籽刀旁培绦德独补隙雾笛莎市蕉恬撇尖恼言雷堡烟紧胰焦欺誓宋誉钎妇烛
3、争碧邢粮谐惟瞬虚慎铀基霹挨曙置炬阐排哑蕊呀兴蓉秀鹅阑姥啤廓麻奄凰肖般噬远鸡三掸饺国拾蜘荚恳足震岸甭勺譬茬颖至迂伊韦鹏宅面掏辑掳煌可编程控制器技术讨论与未来发展学生姓名: *所在院系: *所学专业: *导师姓名: *完成时间: *外文资料PLC technique discussion and future developmentWith the development of the times, todays technology is maturing, competition intensified; rely on manual operation does not satisfy th
4、e current industry outlook, there is no guarantee of higher quality requirements and high-tech corporate image. People saw in the production practice, automation to bring great convenience and product quality assurance, but also reduce the labor intensity, reducing the staff on the establishment in
5、many complex production process is difficult to achieve target control, the overall optimization, optimal decision-making, skilled operatives, technicians or specialists, managers can easily determine and operate it, you can get satisfactory results. artificial intelligence research is the use of co
6、mputers to achieve the target, the analog These intelligent behavior, through coordination of the human brain and a computer to combine human models for solving very complex problem of finding the best way.PLCs most important feature is: electrical engineer electrical hardware no longer spend too mu
7、ch scheming, as long as the button switch or sensor input connected to the PLC input point will solve the problem by connecting the output point contacts or relay to control the power of the boot device, and small power output devices can be connected directly.Contained within the PLC having a centr
8、al processor of the CPU, and with an external I / O port expansion I / O interface and the memory addresses of three major components, CPU core is formed by one or more accumulators, which have the logical math capabilities, and can read the contents of the program memory to drive through the calcul
9、ation of the corresponding memory and I / O interface; I / O port to the internal accumulator and external input and output systems together, and the relevant data stored in the program memory or data memory; memory can be I / O port input data stored in memory and transferred to the accumulator at
10、work, and I / O interfaces, memory sub-ROM program memory and data memory RAM, ROM data can be permanently stored in memory, CPU and RAM only as a temporary calculated using the calculation buffer space. PLC immunity is extremely good, we do not have to care about the life and work of its harsh occa
11、sions, all of these issues are no longer the subject of our failure, and left us is concerned with how to take advantage of the PLCs internal resources to strengthen our ability to control the device, so that our equipment is more flexible.PLC language is not what we imagine the assembly language or
12、 C language programming, instead of using the existing relay control of the ladder, making an electrical engineer in the preparation of the program is very easy to understand the language of the PLC, and many non- Electrical professionals and in-depth understanding of the PLC quickly. PLC communicat
13、ion has become increasingly reflect its value, in the communication between the PLC and the PLC, through information, communication and data sharing to ensure coordination between devices, has reached a complementary effect. PLC data transfer only the internal data to the other side of a consecutive
14、 addresses, we called it a table, the other PLC by reading data in the table to operate. The transmission of information has serial and parallel port lines of the points: the usual PLC is 8 machine, of course, there are 16 machines. When we send the data transmission can be a one to the other, you c
15、an also eight 8-bit send data to each other, one and eight difference is what we call the serial port and parallel port to send data to send data. Serial port speed is relatively slow, but as long as two or three port lines will solve the problem, and can use the phone line for remote control. The p
16、arallel port transmission speed is very fast, which is 256 times the serial port, a short distance advantage, because it is TTL level, generally limited to one meter range, it does not apply to long-distance data transmission, so the cost is too expensive.Many cases, we always like to use string and
17、 conversion chip for transmission, in which case we do not need to be overly complex register set, and direct data transfer instruction through the exchange of data, but not a very viable communication approach, because the transmit data when the PLC must have been waiting for the other side of your
18、 data output, it can not do other work.When you are reading a book, when you hear someone knocking at the door, you stop the hands of things, play to open the door, and knock on the door with a dialogue, this time the phone rings, you answer the phone schematically in take calls, back to knock on th
19、e door to continue with the dialogue, has been completed, you then continue to read your book, in which case we call it an interrupt, it has authority, also has priority, PLC have this kind of functionality. It is characterized by the operation of the device is that we may encounter during emergency
20、 incidents, we have to stop immediately the task at hand, to deal with more important things, this situation is that we often encounter, PLC to perform tasks in an emergency, always first save the current state, such as the programs address, CPU accumulator data, like when we went to open the door t
21、o note we are looking at the first few pages of the book or simply to make a sign, because we will have to continue to be followed to see the back of the book.CPU always in accordance with the wishes we should do, but you give it a wrong thing, it will do the same, which we must pay attention.Interr
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