Opc在1995年就由fiser－rosement、intellution（难怪ifix对opc这么起劲^_^）、rockwell等发起了，如今已经是2008年啦，这么多年来，opc虽然发展很快但是也没能统一河山。不过很多时候都要碰到opc这个玩意，因为大多数自动化厂商都提供了opc接口，可以从这个标准接口中读/写较为实时的数据，用来做一些不同系统的数据整合或者复杂点的实时数据输出打印之类的也许更合适。在网上也看到了有人对于opc的抱怨，后面再研究研究。

VBOPC_CLIENT.doc

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