Is OPC UA the future?
OPC UA is in your future Hands down, OPC UA is the most open, reliable, secure technology for moving data between factory, enterprise applications, and the cloud. For that reason alone, it will be part of your future industrial network.
What is OPC UA discovery server?
Discovery servers allow OPC UA clients to obtain details about one or more OPC UA servers, from a single point. There are two types of OPC UA discovery servers: Local Discovery Servers (LDS) Global Discovery Servers (GDS)
How OPC UA clients discover servers?
With no LDS Server on the network, the Client must know the local host name (typically the TCP/IP address) of the Server. The host name is obtained through some out-of-band mechanism like a web page, front panel or other mechanism. The Client appends “UAdiscovery” to the local host name to form the Discovery endpoint.
Is OPC UA open?
The open source repository of OPC UA is now available on the open source GitHub web site at http://github.com/opcfoundation. Open source strategy is now.
Is OPC obsolete?
OPC Historical Analysis It was designed to provide a unified way to get out and distribute historical data stored in SCADA or Historian systems like OSI-PI or Historian from GE. The protocol is not so widely used today and now the introduction of OPC UA makes it somewhat obsolete.
What is an OPC UA endpoint?
A. Endpoint URL. A network location that OPC UA Client applications can use to find and connect to an OPC UA Server. Note: An endpoint is a physical address available on a network that allows clients to access one or more services provided by a server.
What is the difference between OPC server and OPC client?
Client/Server describes the relationship between two computer applications in which one application, the OPC client, makes a service request from another application, the OPC Server, which fulfills the request. An OPC Server is a software application, that has been written to one of the OPC Specifications.
What is the difference between OPC Classic and OPC UA?
The most significant difference between classical OPC and OPC UA is that it doesn’t rely on OLE or DCOM technology from Microsoft that makes it possible to implement it on any platform if that being Apple, Linux (JAVA) or Windows. The other very important part of UA is the possibility to use structures or models.
