Why the OPC server is so important in the company operation or systems? It is important to note that some OPC specifications are published; others are available only to member of the OPC foundation. So whilst no company "owns" OPC and anyone can develop an OPC server, whether or not they are a member of the OPC foundation, non-members will not necessarily be using the latest specifications.

Anyone can integrate OPC products, and there is no pre-requisite for the system integrator to belong ...
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