OPC UA Interface
Supported Version
1.02 optimized binary TCP
Overview
OPC Unified Architecture (UA) is an open standard created by the OPC Foundation with help from dozens of member organizations. It provides an additional way to share factory floor data to business systems (from shop floor to top floor). UA also offers a secure method for remote client-to-server connectivity without depending on Microsoft DCOM. It has the ability to connect securely through firewalls and over VPN connections. This implementation of the UA server supports optimized binary TCP and the DA data model.
Note: Currently, neither UA via HTTP / SOAP web services nor for complex data is supported. For more information, refer to the OPC UA Configuration Manager manual.OPC Open Connectivity via Open Standards (OPC) is a set of standard interfaces based on Microsoft's OLE / COM technology. The application of the OPC standard interface makes possible interoperability between automation / control applications and field systems / devices. Unified Architecture (UA User Administration or Unified Architecture) provides a platform independent interoperability standard. It is not a replacement for OPC Data Access (DA Data Access) technologies: for most industrial applications, UA complements or enhances an existing DA architecture. The OPC UA OPC Unified Architecture will replace, modernize, and enhance the functionality of the existing OPC defined interfaces. OPC UA is described in a layered set of specifications broken into parts. It is purposely described in abstract terms and in later parts married to existing technology on which software can be built. This layering helps isolate changes in OPC UA from changes in the technology used to implement it.
See Also: For endpoint creation and certificate management for UA drivers and/or the ThingWorx Native Interface, see OPC UA Configuration Manager See Also: Default UA Gateway Connection for information on the default connection between the OPC UA server interface and the OPC UA Gateway client interface.OPC UA Profiles
OPC UA is a multi-part specification that defines a number of services and information models referred to as features. Features are grouped into profiles, which are then used to describe the functionality supported by a UA server or client.
For additional information about profiles, refer to the OPC Foundation website.Fully Supported OPC UA Profiles
• Standard UA Server Profile
• Core Server Facet
• Data Access Server Facet
• SecurityPolicy - Basic128Rsa15 (Deprecated)
• SecurityPolicy - Basic256 (Deprecated)
• SecurityPolicy - Basic256Sha256
• SecurityPolicy - None (Insecure)
• UA-TCP UA-SC UA Binary
CAUTION: Security policies Basic128Rsa15 and Basic256 have been deprecated by the OPC Foundation as of OPC UA specification version 1.04. The encryption provided by these policies is considered less secure and usage should be limited to providing backward compatibility.Partially Supported OPC UA Profiles
• Base Server Behavior Facet
Note: This profile does not support the Security Administrator – XML Schema.