Why is OPC server needed for industrial control systems?

OPC server is a software package that provides an access for the OPC clients to various process control devices like PLC, Scada and smart devices, etc.

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White Paper Series What is OPC UA? - 5. OPC UA Products and Case

White Paper Series What is OPC UA? - 5. OPC UA Products and Case

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Why is OPC server needed for industrial control systems?

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