Web28 de abr. de 2024 · Replied by support on topic OPC hangups and handle leaks. QuickOPC uses a 3rd party library which could cause, under uncertain circumstances, a handle leak, in some older version. This is what is described in the forum topic you linked to, together with a suggested workaround (turning off the usage of that library). Web23 de set. de 2015 · This makes it easier for OPC UA servers to support historical data, and for OPC UA clients to request historical information. But whether data storage or archiving abilities are built into the server or provided separately, the reality of real-time data communications is that a real-time client cannot handle data that has been stored and …
UA Part 11: Historical Access - 3.1 Terms and definitions
WebQuickOPC is a radically new approach to access OPC data. It is an ideal tool to publish OPC data on the web or integrate OPC connectivity to custom applications involved in industrial automation or process control. QuickOPC gives unbelievably short code to create OPC clients. In addition, using complex heuristic algorithms to optimize itself on ... Web30 de mai. de 2024 · The HANDLE (be it whatever it is) has nothing to do with it. I can imagine that some existing 32-bit code may be storing pointers to OPCHANDLE, and of course that won't work in 64-bits. In such case the code has to be rewritten to define its handles differently - usually, some kind of "map" (dictionary) structure between the … bingus hootes1
Forum - OPC Foundation - 32 to 64 bits portability
Webclass opcua.common.subscription.Subscription(server, params, handler) [source] ¶ Subscription object returned by Server or Client objects. The object represent a subscription to an opc-ua server. This is a high level class, especially subscribe_data_change and subscribe_events methods. WebOPC clients can be developed in C# or VB.NET without the hassle of COM interoperability. The OPCDA.NET OPC Client SDK provides classes and methods for the .NET Framework and .NetCore platforms. All features of the OPC DA V2.05 and V3.0 specifications are supported. Additional helper classes, tools and many samples provide a highly efficient ... http://www.advosol.com/Manuals/OpcDaNet/topic22.html dabin research inc