描述
OPC来取得数据，并且使用ODBC、ADO和刀ilL之类的标准将数据反馈给企业。而PAC可以有效地将工厂数据整合至ERP系统中，让控制系统能够直接和外部数据库通信。而当控制系统连接至数据库及网站时，安全性的问题开始出现。
JDS UNIPHASE COM-200ET002Y COMMUNICATION MOD WM5C3C0
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