| NAPOPC Server 013
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Q:
The "run-time errors '91' "message
occurs while VB client demo connect to the NAPOPC DA Server?
Ans:
Running the client which building by VB must have
Automation Interface to access OPC. This error message will show when the file
of "OPCDAAuto.dll" which under folder \windows\system32\ lost. The file was
package inside the OPC Data Access Component. You can download the "opcdac.exe"(it's
OPC Data Access Component's object.) and reinstall it to solve the problem.
Please refer to http://www.icpdas.com/download/7000/napopcsvr.htm.
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Written by Cony
Date:2004/9/7 |