That offers domestic plc researchers a chance to compete with foreign plc companies in software design . and the development of high performance single chip make it possible for us to overtake foreign plc researchers in hardware design 国际标准iec61131 - 3的颁布和实施为国内研究者在软件方面提供了与国外厂商竞争的机会;而近年来先进高性能单片机技术的发展,为我们硬件设计赶超国外现有产品提供了物质基础。