Hello Yul725, there's no need to use two different IO Handlers. If you just omit ".dll" from the corresponding field it will work on both Windows and Linux systems. There is always only one OPC UA IO Handler available in WebIQ - not two. With ".dll" you explicitly tell WebIQ to load the DLL, which will fail on Linux as there it is a .so file. Omitting the extension will make it work on both systems. Regards, Sascha Kimmel
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