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随着全球Internet技术的飞速发展,TCP/IP通讯技术被广泛的应用到各个行业。因为运用TCP/IP通讯技术可以无缝接入Internet网络,这就突破距离的限制,实现远程监控或数据采集。对于工业自动化行业而言,因以太网技术出现的时间及其技术的不够成熟都不能满足工业现场需求,加上其他竞争因素,造就了目前现场总线标准不一,互不相容的局面。TCP/IP技术最大的优势就是兼容性和统一性,运用TCP/
With the rapid development of global Internet technology, TCP / IP communication technology has been widely applied to various industries. Because the use of TCP / IP communication technology can seamlessly access the Internet network, which breaks the distance restrictions, remote monitoring or data acquisition. For industrial automation industry, due to the emergence of Ethernet technology and its technology is not mature enough to meet the needs of industrial sites, coupled with other competitive factors, creating the current fieldbus standards are different and mutually incompatible situation. TCP / IP technology is the biggest advantage of compatibility and unity, the use of TCP /