The QuickOPC family consists of three basic products:

• QuickOPC.NET, for OPC "Classic" specifications, and Microsoft .NET Framework technology
• QuickOPC-COM, for OPC "Classic" specifications, and use with Microsoft COM (automation)
• QuickOPC-UA, for OPC Unified Architecture specifications (.NET)

You can also buy QuickOPC Combo, with license to both QuickOPC.NET and QuickOPC-COM products.

• New: QuickOPC.NET now supports 64-bit development.
• New: QuickOPC now allows development of OPC Alarms and Events clients.
• New: QuickOPC can now connect to OPC UA (Unified Architecture) servers.

• Specifications: OPC Data Access 1.0, 2.0 and 3.0, OPC Alarms and Events 1.10 and earlier, OPC Universal Architecture (through UA COM Proxy - included).
• Tested for compliance with standards and interoperability.
• Supports operating systems from Windows XP, Windows Server 2003 to Windows Vista, Windows 7 and Windows Server 2008 R2.
• Multi-threaded, non-blocking design for high performance.
• Internal messaging layer provides isolation between OPC communications and the custom client code, resulting in high resiliency.
• Automatically connects to and disconnects from OPC Servers.
• Automatically adds, removes and maintains OPC groups and items.
• Conserves resources behind-the-scenes by automatically disposing of objects that are not being used.
• No limits to number of connections, subscriptions, or tags.
• Automatic server status checking, detection of connection problems and server failures, and automatic reconnects.
• Maintains client state and reconstructs the internal state of OPC server after reconnection.
• Supports all flavors of OPC synchronous and asynchronous reads and writes, subscriptions, browsing, and property access.
• Multiple independent OPC server connections.
• Intelligent OPC Group parameter optimization.

Leaflet

Following table will help you to understand the features of various QuickOPC editions, and assist in selecting the edition that is best for you.

Feature Set	OPC Specifications			Development Tools			Installation Package and Documentation Set
	OPC Data Access	OPC Alarms and Events	OPC Universal Architecture (Data)	C/C++	COM	.NET
QuickOPC-COM			1)	2)			QuickOPC-Classic
QuickOPC.NET			1)
QuickOPC-Combo			1)	2)
QuickOPC-UA							QuickOPC-UA

Notes:

1. Connection to OPC Universal Architecture Servers can be accomplished through UA Proxy for OPC COM Clients (included with the product). For native OPC UA connection, use QuickOPC-UA product.
2. You can use QuickOPC-COM from native code in C/C++ by making COM calls.

Managed C++ (C++/CLI) can be used wherever .NET Development Tools are indicated.