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Classic OPC: DA, A&E, HDA, XML-DA, etc.
Questions about OPC Classic technologies and specifications, etc.
Question on the use of OPC Classic Core Components v3.00.106
Started By
Srijith Vijay - 02/05/2024 - 20:56
Srijith Vijay - 02/05/2024 - 20:56
Issue Registering OPC NET API DLLs: CoCreateInstanceEx Error Message
Started By
Michael Koller - 01/30/2024 - 00:21
Michael Koller - 01/30/2024 - 00:21
0xC0040002 A duplicate parameter was passed where one is not allowed.
Started By
Rishi G - 11/24/2023 - 08:54
Rishi G - 11/24/2023 - 08:54
Upgrade OPC Classic server from 32-bit to 64-bit, doesn't work
Started By
Franz Eversheim - 09/15/2023 - 05:58
Franz Eversheim - 09/15/2023 - 05:58
OPC DA server as NT service NOT started by COM runtime
Started By
Giorgio Bresciani - 09/07/2023 - 04:07
Giorgio Bresciani - 09/07/2023 - 04:07
OPC DA - How to Determine the Full Path of a Tag and Discover the Separators Used by the OPC Server (Tag Structure)
Started By
Alisson Pires - 08/25/2023 - 09:46
Alisson Pires - 08/25/2023 - 09:46
OPC group write limitation of 512 OPC items per request
Started By
Ulrik Farlov-Qvist - 07/12/2023 - 04:17
Ulrik Farlov-Qvist - 07/12/2023 - 04:17
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