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• 14:13, 10 December 2025 User talk contribs created page OPC Glossary (Created page with "; Access Rights : Access rights allowed to a given item. Can be Read only, Write only, or Read/Write. ; Asynchronous : Various OPC calls explicitly make use of asynchronous communication. When an OPC Client application issues an asynchronous call, the OPC Server acknowledges receipt of the call itself. The OPC Server then “calls” the OPC Client application back with the result using a callback. The OPC Client application does not know when it will receive the callba...")