configuration console 在OPC setting里面symbols,Edit list加载变量表C:\Program Files\Siemens\Step7\S7Proj\1\u7\tagfiles\OPC_Data.sti,出现错误为:
1.A question mark (?) indicates when the symbol file can not be used by the OPC XML server because of missing access rights.
不知道如何解决啊?先谢谢大家。