OPC DA Connect uses the OPC DA Auto Service. This service must be registered on your computer to allow navigation on a server. OPC DA Connect distributes a version of the OPCDAAuto.dll and register this dll during installation.
If you have troubleshot to find variables on an OPC Server, make sure to have this OPCDAAuto.dll registered on your computer.
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Caution You need administrator rights to execute this command successfully on Windows Vista or higher. |
Register the OPCDAAuto.dll:
1. Open an elevated command prompt, following these steps:
(Windows 8.1 and Windows 8) Swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search. Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
(Windows 7 and Windows Vista) Click Start, type Command Prompt or cmd in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or clickAllow.
(Windows XP) Log on with an administrator account or an account that has administrator permissions, and then open a Command Prompt window.
2. In the command prompt window, run the following command:
REGSVR32 "%WINDIR%\System32\OPCDAAuto.dll"
3. If you receive an error when registering a 32-bit DLL on a 64-bit version of Windows, run the following command:
%systemroot%\SysWoW64\regsvr32 "%WINDIR%\System32\OPCDAAuto.dll"
