plc外文翻译及原文----浅谈plc技术进展情况-plc设计(编辑修改稿)

plc外文翻译及原文----浅谈plc技术进展情况-plc设计(编辑修改稿)内容摘要：

Manufacturing System), factory machinery to the formation of FMS flexible manufacturing system, PLC is the foundation, so PLC market is broad. PLC with stable,reliable,cheap, multifunctional application flexibility, ease of maintenance and operation of the merits, This is it can be widely used in the root causes. 2 PLC works and the trend One or a number of PLC and PC system out together, play PC original programming and a manmachine interface to the operating station, This 20th century, the 1990s New Wave, such as system integration brings opportunities Meanwhile programming software and humanmachine interface software (monitoring software or configuration software) and the software interface has been developed. In recent years, the PLC CPU manufacturers in the original template provided the basis for RS232/422/485 interfaces, gradually add to the variety of munications interfaces, and to provide plete munication work. Data due to the recent rapid development of munications technology, user requirements for open very strong, Fieldbus and Ether technology developments, So PLC PCS system than the DCS which open some of the status quo pretty. 2020 China39。 s machinery industry has bee a new bright spot in industrial development, the output value last year, up %. Automobile output of the world39。 s top ten, machine output of the world39。 s No. 5. Machinery Industry profit growth %, accou。