商用级软件
http://www.emqx.com/zh/blog/opc-ua-protocol
http://www.motrotech.com/article/151.html?sdclkid=A5-aLIGbl-YALQuALcWAOjGxub5a5gYAlADF5Isb9fYFlqsb
http://www.iiatech.cn/Research
