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OPC-UAC
OPC-UACOPC-UAC is a library for connecting Windows applications with OPC UA servers.
The library provides a simple interface that supports read, write and monitor of changes in variable values operations.

The product OPC-UAC 1.0 also available on the Component Source platform at the page "Communication & Messaging OPC-UAC"

The advantages of OPC-UAC
Simple
The use of OPC-UAC library is definitely simpler, especially in the configuration phase where the software allows browsing of the items supplied by the OPC Servers connected in the network.
Flexible
Thanks to use of the standard OPC technology, OPC-UAC allows your C/C++, C#, VB projects to communicate with a wide range of peripherals of different companies and in various models.
Technical card of OPC-UAC 2.0
Description
OPC-UAC is a library for connecting Windows applications with OPC UA servers.
Characteristics
OPC-UAC library supports:
  1. connection to an unlimited number of OPC UA servers
  2. discovery server su host
  3. connection mode
    1. Trasport: UA-TCP UA-SC UA-Binary
    2. Security policy: None, Basic256, Aes128-Sha256-RsaOaep, Basic256Sha256, Aes256-Sha256-RsaPss
    3. User Authentication: Anonymous, UserName
    4. Management of self-signed certificates
  4. "Data Access" service
    1. reading and writing in single and one dimension array mode of the following data types:
      • Boolean
      • Byte and SByte
      • UInt16 and Int16
      • UInt32 and Int32
      • Single (Float)
      • Double
      • String
      • ByteString
      • LocalizedText (only 'Default language')
    2. Reading of optional information:
      • Data quality
      • server timestamp
      • source timestamp
    3. writing management in "SafeWrite" mode
    4. array writing with "IndexRange" mode
    5. monitor of value changes (DataChange Subscriber)
  5. "Method call" service (only with .NET interface)
Limits
Compared to the basic functions, the following limits are noted for OPC-UAC:
  • It does not support the following data types:
    • Int64
    • UInt64
    • DateTime
    • Guid
    • XmlElement
    • NodeId
    • ExpandedNodeId
    • StatusCode
    • QualifiedName
    • ExtensionObject
    • DataValue
    • Variant
    • DiagnosticInfo
    • Number
    • Integer
    • UInteger
    • Enumeration
  • Array values: only one dimension arrays are supported
Skills
OPC-UAC requires the following skills for use:
  • minimal knowledge of OPC UA technology
  • minimal knowledge of certificate management
  • minimal knowledge of Ethernet TCP/IP communications
Minimum requirements
The minimum requirements for running the OPC-UAC library are those required by .NET Framework 4.6.2 system.
According to the information provided by Microsoft, the minimum version of the Operating System is:
  1. Client - Microsoft Windows 7 SP1
  2. Server - Windows 2008 R2 SP1 Server
Product Contents
The package supplied, OPC-UAC, available on CD or downloadable from this site in the FreeDownload section, contain:
  1. OPC-UAC 2.0 driver (DLL)
  2. Documentation: Operating Manual
  3. Demo application
 Download Diretto Driver OPC-UAC RUNTIME
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