外文翻譯--可編程邏輯控制器（plc）的現(xiàn)況和發(fā)展趨勢(shì)-文庫(kù)吧
2025-04-17 07:41 本頁(yè)面
【正文】 useholds P LC In the longterm applications, challenges. Almost bee a high reliability of the generation of Word. Almost all largescale sequence control, it is important to the application of PLCbody Achievable. It can be said. No household there is no modern manufacturing PLC. DCS further integration of PLC technology, the development of ACmortem (Programmable Automation Controller). PAC in the current Domestic and foreign have different definitions. PAC mentioned here is not a PC The realization of automatic control. It is not only the order of control functions can be achieved, but also The realization of process control, motion control, drive control, safety control and approved Department The rationale for such. PAC has a strong ability to connect to the work a variety of standard Prospective onsite bus. Connected to the standards, including FF and PA works, the Types of devicelevel works。 can connect field bus standard frequency Browser, MCC (Motor Control Center). The expansion of I/O also can be connected not with the controller. AC households can Convenient and enterprise work integration, the realization of chemical information. Ether has bee Layer standard for work monitoring. PAC fullfeatured short, in the factory since Action, only the user AC mining can be achieved so the control functions. Not the need for other control systems. Rockwell Automation in the work using Ether / IP, Device Net three work technology. And the realization of the three work Seamless work connectivity is a model of work architecture industries. The technology of nuclear Heart is the CIP (mon industrial protocol) protocol. PLC works Mod bus application is also very extensive. Aspects of the current Romanian Industrial Ether Rockwell Automation, Schneider pushed the main CIP Ether, Siemens and so the main push Ether Net / IP standard work protocol and workbased Prepared. special hardware technology. We all agree that industrial Ether Network will receive a wide range of applications. Ether can dominate the world but also necessary. On the one hand to verify interare still some technical problems yet to be solution Decision. On the other hand, the installation of the existing mature owned bus is very great. Extremely costly full replacement. With the development of electronic technology. PLC size is getting smaller and sm
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