OPC常见错误码

0x8000401A
The server process could not be started because the configured identity is incorrect. Check the username and password.

0x80004005
Unspecified Error

0x800706BA
RPC_S_SERVER_UNAVAILABLE
The RPC server is unavailable

0x800706BF
远程过程调用失败且未执行

0x8007000E
E_OUTOFMEMORY
Not enough memory to complete the requested operation. This can happen any time the server needs to allocate memory to complete the requested operation.

0x80070776
Couldn’t create connection with advise sink,
Reason for error: There is a problem resolving the computer name.
Solution: This problem can be solved by specifying the IP address of the server instead of specifying the computer name

0x80070005
0x80070005 appears in the OPC Client application when it succeeds in launching an OPC Server or OpcEnum, but fails to receive a reply from either of the applications. This error could be caused under several conditions: On the OPC Server PC, the OPC Client User Account does not have the right Access Control List (ACL) permissions in the System-Wide DCOM settings, Access Permissions, Edit Default.
On the OPC Client PC, the OPC Server User Account does not have the right Access Control List (ACL) permissions in the System-Wide DCOM settings, Access Permissions, Edit Limits.

On the OPC Client PC, the DCOM Default Impersonation Level is set to “Anonymous” instead of “Identify”, and the “ANONYMOUS LOGON” Access Control Entry (ACE) does not exist in the OPC Client PC, Access Control List (ACL) permissions in the System-Wide DCOM settings, Access Permissions, Edit Limits.

0x80010108
RPC_E_DISCONNECTED

0x80080005
Server Execution Failed

Failure to obtain a CLSID
OPC Client application failed to find the OPC Server. The two most common causes are:
1. Failure to find the OPC server in the Windows Registry
2. Failure to connect to OPCENUM.EXE

Failed to connect to 2.0 data access interface for group … Falling back to 1.0 interface
可能原因：计算机重名或局域网DNS服务故障，或者在不同子网中