OPC Data Access

[usunto_bryjamus@interia.pl]

Hi,

I need libraries to connect to OPC server and read/write tags. I use
GrayBox Wrapper but I want to try something else. OPC server is Simatic
WinCC server (version 6 but I'm not sure about version). Do you know
some freeware solution, libraries or sample code?

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Best regards,
Klaudiusz